sub-headlight system for use in a vehicle that leans in curves and vehicle that leans in curves

专利摘要:
SUB HEADLIGHT UNIT AND SUB HEADLIGHT SYSTEM FOR USE IN VEHICLE LEANING IN CURVES, AND VEHICLE LEANING IN CURVES. To provide a sub-headlight unit for use in a vehicle that tilts in curves, by which the lighting ranges suitable for a wide variety of driving situations are obtained by suppressing an increase in size. A sub-headlight unit for use on a vehicle that tilts in curves includes a plurality of sub-headlight light sources to illuminate, on one side with respect to the vehicle's wide direction, an area in front of and out of the vehicle with relation to the vehicle's wide direction. The brightness of the sub-headlight light source changes according to the vehicle's angle of inclination. When the vehicle's tilt angle reaches a reference value that is individually determined for each of the sub-headlight sources, the sub-headlight source exhibits a predetermined brightness. As the reference value determined for the sub-beacon light source is greater, an outer edge of a strip (...).
公开号:BR102013003977B1
申请号:R102013003977-2
申请日:2013-02-20
公开日:2021-01-12
发明作者:Junichi Ooba；Takeshi Ikeda；Yasuhiko KINO；Makoto Kosugi
申请人:Yamaha Hatsudoki Kabushiki Kaisha；
IPC主号:

专利说明:

[0001] [001] The present invention relates to a sub-headlight unit and a sub-headlight system for use in a vehicle that leans in curves, and a vehicle that leans in curves.
[0002] [002] In general, on a vehicle that leans on curves (such as saddle-type vehicles including motorcycles, three-wheel motor vehicles, snow vehicles, and ATVS (all-terrain vehicles)) when the vehicle makes a curved at an intersection, a driver operates a handlebar and additionally changes his own weight in order to react to the centrifugal force acting on a vehicle body. In this way, the vehicle turns with an attitude (hereinafter, also referred to as “tilting attitude”), tilting towards the inside of the curve. On the other hand, in a vehicle that does not tilt around curves, for example, in a car, when the vehicle turns at an intersection, a driver operates a steering wheel and turns with centrifugal force acting on a vehicle body. Therefore, in the vehicle that does not tilt in curves, the vehicle body tilts out of a curve due to the centrifugal force.
[0003] [003] In the vehicle that leans in the curves, the curve is made with an active use of the change of weight of the driver itself. Therefore, the vehicle body tilts a lot. In the vehicle that does not lean on the curve, the vehicle body tilts to the outside of the curve due to the centrifugal force. The degree of this inclination varies depending on the vehicle's operating speed and the magnitude (radius) of the curve, and that vehicle body inclination is not used for the curve. In the vehicle that does not tilt in curves, it is preferable that the amount of inclination towards the outside of the curve due to the centrifugal force is small.
[0004] [004] Thus, at a moment when the curve takes place at an intersection, the vehicle that leans on the curve causes the vehicle body to lean towards the inside of the curve with a relatively large amount of inclination, while the vehicle that does not lean in the curves causes the vehicle body to lean towards the Aldo outside the curve with a relatively small amount of inclination.
[0005] [005] Normally, a vehicle is provided with a plurality of lights regardless of whether or not the vehicle tilts in curves. The headlights include a light designed primarily to ensure a driver's field of view of the vehicle and a light designed primarily to allow a nearby or similar vehicle to recognize the presence of the vehicle itself. A headlamp is the light basically intended to guarantee the driver's field of vision of the vehicle, and, in general, it is configured to switch between a high beam (route light) and a low beam (overtaking light).
[0006] [006] The high beam, which emits light in a horizontal (upward) direction, guarantees a field of vision at a long distance. Generally, in order to avoid disturbing the driver of another vehicle, the high beam is used in a situation in which no vehicle or the like exists ahead at night. The low beam, which emits light in a downward direction, is used even in a situation where there is a vehicle or similar at the front. Therefore, in a normal case, a vehicle often works with the low beam turned on.
[0007] [007] When the vehicle leaning on the curve is on a straight road, a strip of illumination from a headlight light source (low beam) spreads equally to the left and to the right in an area ahead in one direction forward and below a horizontal plane including the beacon light source. When the vehicle that leans on curves is on a curved road to the left, the vehicle rotates with the vehicle's body tilted to the left. Accordingly, the illumination range of the headlight light source spreads down to the left. As a result, a closer position on a track is illuminated. In this way, the illumination range in an area within the curve and ahead in the forward direction is reduced.
[0008] [008] Therefore, a vehicle is proposed in which, in addition to a headlight that illuminates an area in front of the vehicle, a pair of right and left sub-headlights that are switched on depending on the magnitude of an angle of inclination (angle of inclination) of a vehicle body to the inside of a curve with respect to its vertical state) are provided as the headlight (patent document 1). A vehicle has also been proposed in which a spread located on the upper side of a headlight light source is rotated according to the magnitude of an angle of inclination so that an optical geometric axis of the headlight light source is changed (document of non-patent 1). Non-patent document 1: Japanese patent No. 4806550
[0009] [009] Non-patent document 1: "BWM Motorrad adaptiver Scheinwerfer” (online), uploaded on July 2, 2010 (retrieved on March 12, 2010), from the Internet (URL: http://www.youtube.com / watch v = ErPRzhFxJpc).
[0010] [010] A situation under which the vehicle turns or turns at an intersection is not always the same. A driver's field of view at a turn varies depending on vehicle speed and also within the radius of a road, and the like.
[0011] [011] For example, even on a road with a curve with the same radius, some vehicles pass through the curve at a relatively low speed, and other vehicles pass through the curve at a relatively high speed. At this time, the vehicle's tilt angle passing at high speed is greater than the vehicle's tilt angle passing at low speed. Accordingly, a headlamp illumination range passing at high speed decreases compared to a headlamp illumination range passing at low speed. Therefore, a visible lane ahead on a route varies depending on the vehicle's speed.
[0012] [012] Additionally, even when the vehicle is running at the same speed, the angle of inclination is small in a curve with a large radius so that the illumination range is reduced by a small degree, while the angle of inclination is large in a curve with a small radio so that the lighting range is greatly reduced. Accordingly, for example, in a case of continuous passage through a plurality of curves having different radii during a tour on a mountainous road, the light range of the lighthouse changes at each curve although the speed does not change much. As a result, the field of view ahead on a route changes. When such a change in the field of vision ahead on a course during a turn is small, the driver feels more secure.
[0013] [013] In the vehicle described in patent document 1, the pair of right and left sub-headlights are connected according to the angle of inclination. Here, in order to avoid disturbing a driver of a nearby vehicle, or similar, it is preferable that, when making a turn, a direction of light emission from the sub headlight is less than a horizontal plane. Under such restricted circumstances, a problem arises that it is difficult to sufficiently suppress, by means of a pair of right and left sub-headlights, a change in the field of vision ahead on a route caused by a difference in a passing situation through of a curve.
[0014] [014] On the other hand, the headlight unit of the variable optical geometric axis type described in the non-patent document 1, the mirror is rotated according to the magnitude of the angle of inclination, and thus the orientation of the geometric axis optical can be continuously changed. Thus, even under the restriction that the light emitting direction of the headlight must be less than the horizontal plane, it is easy to suppress a change in the field of vision ahead on a route. In addition, a change in the direction of the optical geometric axis of the headlight itself is used to respond to a reduction in the headlight illumination range. This achieves a compact size of the headlight unit. In this way, the variable optical axis type headlight described in non-patent document 1 has a compact size and is very useful.
[0015] [015] However, as a result of testing, in a wide variety of operating scenes, a vehicle including the headlight unit of the movable optical axis type described in non-patent document 1, the following has been revealed. That is, in some situations, it is desirable to illuminate a position still distant from the vehicle on a route. In order to greatly change the direction of light emission for such a situation, for example, it is necessary to increase the size of a moving element such as a mirror, or to provide another moving element, or to increase the size of a reflector and a support in order to increase a large moving band of the mirror. This causes a problem with the size of the headlight unit increasing, which is not suitable for a vehicle to lean in curves.
[0016] [016] The invention of the present application was created in view of the problems described above, and an objective of the invention of the present application is to provide a vehicle that tilts in curves and a sub-headlight unit and a sub-headlight system for use in a vehicle that leans during the curve, through which the lighting ranges suitable for a wide variety of situations are obtained by suppressing an increase in size.
[0017] [017] The present inventors conducted intense studies on the problem of conventional techniques having difficulties in sufficiently suppressing a change in the field of vision ahead in a course caused by a difference in a passing situation through a curve, and found the following :
[0018] [018] In a conventional technique such as patent document 1, the orientation of the sub-headlight is configured so that, together with an increase in the angle of inclination of a vehicle, a strip of illumination of the sub-headlight begins to cover a position that it was out of the lighting range. In other words, in this conventional technique, the orientation of the sub headlight is configured based on the correspondence relationship between an increase in the angle of inclination and a reduction in the illumination range.
[0019] [019] It is true that there is a correspondence relationship between an increase in the angle of inclination and a reduction in the range of illumination, but the mere configuration of the orientation of the sub headlight based on this correspondence relationship cannot sufficiently guarantee the field of view of the driver ahead on a course at a moment of making a turn.
[0020] [020] This is because, when passing through a curve, the position of the driver's line of sight looking forward on a course differs depending on the circumstances. For example, even on the same curve, when the vehicle speed is high, the driver seeks to see a position ahead on the route. Although the vehicle speed is the same, when the radius of a curve is small, the driver seeks to see a position ahead in the curve. In short, a change in the field of vision ahead of the course at a moment of passing a curve is influenced by a change in the driver's line of sight that changes according to a wide variety of situations. This point needs to be considered, too, in order to suppress a change in the field of view ahead on a route caused by a difference in a passing situation through a curve. The present inventors obtained the discoveries described above, and made the present invention.
[0021] (1) Uma unidade de sub farol para uso em um veículo que se inclina em curvas, a unidade de sub farol incluindo uma pluralidade de fontes de luz de sub farol para iluminação, em um lado com relação a uma direção de largura do veículo, uma área à frente e para fora do veículo com relação à direção de largura do veículo, onde o brilho da fonte de luz de sub farol muda de acordo com um ângulo de inclinação do veículo, quando o ângulo de inclinação do veículo alcança um valor de referência que é individualmente determinado para cada uma das fontes de luz de sub farol, a dita fonte de luz de sub farol exibe um brilho predeterminado, como o valor de referência determinado para a fonte de luz de sub farol é maior, uma borda externa de uma faixa de iluminação da fonte de luz de sub farol possuindo uma iluminação predeterminada é localizada mais para fora com relação à direção de largura do veículo em uma vista plana. [021] To solve the problems described above, the present invention adopts the following configurations: (1) A sub-headlight unit for use in a vehicle that tilts in curves, the sub-headlight unit including a plurality of sub-headlight light sources for illumination, on one side with respect to a vehicle width direction, an area in front of and out of the vehicle with respect to the vehicle's wide direction, where the brightness of the sub-headlight light source changes according to the vehicle's tilt angle, when the vehicle's tilt angle reaches a value of which is individually determined for each of the sub-headlight light sources, said sub-headlight light source exhibits a predetermined brightness, as the reference value determined for the sub-headlight light source is higher, an outer edge of a range of illumination from the sub-headlight light source having a predetermined illumination is located further out with respect to the vehicle's wide direction in a flat view.
[0022] [022] In a configuration of (1), since the setpoint determined for the sub-beacon light source is larger, the outer edge of the sub-beacon light source's lighting range having the predetermined illumination is located further out with respect to the vehicle's wide direction in a flat view. Accordingly, since the vehicle's tilt angle is greater, a more external position with respect to the vehicle's wide direction is illuminated.
[0023] [023] As described above, even at the same curve, the vehicle's tilt angle increases when it passes at high speed, and even at the same speed, the vehicle's tilt angle increases when it passes through a curve having a smaller radius. In these situations, the driver seeks to see a more distant position ahead on a route or a more distant position on a curve. In the configuration of (1), as the vehicle's tilt angle becomes larger, a more external position with respect to the vehicle's wide direction is illuminated. Therefore, such a change in the driver's line of sight can be met. This allows lighting to be performed with a range of lighting suitable for each of a wide variety of situations.
[0024] [024] Additionally, lighting with the appropriate lighting ranges for a wide variety of situations is achieved by using the plurality of sub-beacon light sources. Therefore, any mechanism and element for moving the optical geometric axis of the sub-beam light source may not be necessary. Accordingly, there is no need to increase the size of the sub headlamp in order to widen out a strip that the sub headlamp can illuminate, and it is relatively easy to extend the illumination band out. (2) The sub-beacon unit according to (1), as the reference value determined for the sub-beacon light source is greater, an outer edge of a range of illumination of the sub-beacon light source having a predetermined illumination obtained when the vehicle is in a vertical state is located further out with respect to the vehicle's wide direction.
[0025] [025] In a configuration (2), according to the vehicle's angle of inclination, an even further outward position in relation to the vehicle's wide direction is illuminated. This allows the lighting to be carried out with a range of lighting more suitable for each of a wide variety of situations. (3) The sub-beacon unit according to (1) or (2), where the reference value determined for the sub-beacon light source is greater, a larger angle is formed in a plan view between an optical geometric axis of the sub-headlight light source and a vehicle centerline in a front-rear direction.
[0026] [026] In a configuration of (3), when the angle of inclination increases, the sub-beacon light source whose optical axis is directed further outwards is brightened. This allows lighting to be performed with a lighting range more suitable for each of a wide variety of situations.
[0027] [027] The vehicle's center line in the front-rear direction is a straight line that extends in the front-rear direction of the vehicle while passing through the center of the vehicle with respect to the vehicle's wide direction in a horizontal plane located on the same level than a headlight light source (low beam light source) of the vehicle. Accordingly, when the vehicle is moved from the vertical to the inclined state, the center line is changed laterally with respect to the vehicle's wide direction. The angle formed between the optical geometric axis of the sub-headlight light source and the center line means an angle formed between them, in a flat view, at a time when the sub-headlight light source exhibits the predetermined brightness as a result of sub beacon light source reaching the reference value. (4) The sub-headlight unit according to any of (1) to (3), where the plurality of sub-headlight sources is located on one side of the vehicle with respect to the vehicle's wide direction, since the reference value determined for the sub-beacon light source is larger, an outer edge of a lighting strip having a predetermined illumination generated on one side by said sub-beacon light source among the plurality of sub-beacon light sources it is located further out with respect to the vehicle's wide direction.
[0028] [028] In a configuration of (4), lighting is done from a plurality of sub-headlight light sources that are provided on one side of the vehicle with respect to the vehicle's wide direction in the direction of a forward direction to and from the vehicle side on one side. Therefore, the distance from the light source to a lighting target is shortened. This allows lighting to be performed more effectively with an appropriate lighting range for each of a wide variety of situations.
[0029] [029] In the configuration of (4), in addition, for example, when the vehicle turns to the left, the sub-headlight light sources provided on the left side of the vehicle with respect to the vehicle's wide direction illuminate an area ahead and on the side of the vehicle. Therefore, the entire direction of the curve, the position of the light source that is turned on, and a lighting direction are on the left side with respect to the vehicle's wide direction. Therefore, every turn direction, the position of the light source that is on and a lighting direction are on the left side with respect to the vehicle's wide direction. When, in this way, the turn direction, the position of the light source that is on, and the direction of illumination coincide with the direction of vehicle width, an uncomfortable feeling is not provided, for example, for a driver of a oncoming vehicle. (5) The sub-beacon unit according to any one of (1) to (4), where as the reference value determined for the sub-beacon light source is greater, a range of illumination from the light source sub-headlamp is obtained when the vehicle is in a vertical state is located higher up, as the illumination range of the sub-headlamp light source is located higher up, an outer edge of a light strip having a predetermined illumination generated by said sub-headlight light source among the plurality of sub-headlight light sources is located further out with respect to the vehicle's wide direction.
[0030] [030] In a configuration of (5), the brightness of the plurality of sub-beacon light sources is sequentially changed according to an increase in the angle of inclination. As a result, the illumination range is extended upwards and outwards. This allows lighting to be performed with a range of lighting suitable for each of a wide variety of situations, while at the same time allowing lighting to be performed efficiently according to an increase in the angle of inclination. (6) The sub-beacon unit according to any one of (1) to (5), where an optical geometric axis of the sub-beacon's light source is fixed, as the reference value determined for the light source sub-beacon is made larger, an outer edge of a strip of lighting having a predetermined illumination generated by said sub-beacon light source among the plurality of sub-beacon light sources whose optical geometric axes are fixed is located further out with relation to the vehicle's wide direction.
[0031] [031] In a configuration of (6), the optical geometric axes of the plurality of sub-beacon light sources are fixed. Therefore, any movable mechanism and any movable element for moving the optical geometric axes of the sub-beacon light sources are not provided. Accordingly, there is no need to increase the sizes of a moving mechanism and a moving element in order to widen out a range that the lighting can reach. In this way, an increase in size is suppressed. (7) The sub-beacon unit according to any one of (1) to (6), where since the reference value determined for the sub-beacon light source is greater, a cut line of the sub headlight, obtained when the vehicle in a vertical state is seen from the front side of the vehicle, is tilted at a greater angle of inclination.
[0032] [032] In the configuration of (7), when the brightness of the sub-beacon light source increases along with an increase in the tilt angle, the cut-off line of your beacon's light source is prevented from being above the horizon. This allows lighting to be efficiently performed with a range of lighting suitable for each of a wide variety of situations, while preventing excessive glare. (8) The sub-headlight unit according to (1) to (7), where when the vehicle's inclination angle reaches a reference value that is individually determined for each of the sub-headlight sources, said source of sub-beacon light is turned on, since the reference value determined for the sub-beacon light source is greater, an outer edge of a strip of light having a predetermined illumination generated by the sub-beacon light source at a time when that said sub-headlight light source is turned on is located further out with respect to the vehicle's wide direction.
[0033] [033] In a setting of (8), after reaching the reference value, the sub headlight is switched on so that the illumination range of the sub headlight covers an area where the driver's line of sight is directed. This allows lighting to be carried out effectively with an appropriate lighting range for each of a wide variety of situations. (9) The sub-headlight unit according to (1) to (8), where when the vehicle's tilt angle reaches a reference value that is individually determined for each of the sub-headlight sources, said source sub-beacon light is switched on in a full light state, since the reference value determined for the sub-beacon light source is greater, an outer edge of a strip of light having a predetermined illumination generated by the light source of sub headlight at a time when said sub headlight light source is turned on in its full light state is located further out with respect to the vehicle's wide direction.
[0034] [034] In a configuration of (9), after reaching the reference value, the sub headlight is switched on in the full light state so that the illumination range of the sub headlight covers and illuminates an area where the line of sight of the driver is directed. This allows lighting to be performed more efficiently with an appropriate lighting range for each of a variety of situations. (10) The sub-headlight unit according to any of (1) to (9), where the sub-headlight units are provided on one side of the vehicle, when the vehicle is in a vertical state, the light source of sub headlamp having a higher reference value is located on the outside of the sub headlamp light source having a lower reference value with respect to the vehicle's wide direction.
[0035] [035] When the vehicle passes through a curve, the driver is more likely to see a farther position on the curve (further out in relation to the vehicle's wide direction) according to an increase in the vehicle's tilt angle. In a configuration of (10), as the angle of inclination increases, the outermost sub-beam light source is turned on. This makes it easy to guarantee a wide range of lighting in a side area of the vehicle, in order to ensure that a position that the driver wants to see is more illuminated. In addition, switching on the sub-beacon light sources according to an increase in the angle of inclination is performed in the order of the internal sub-beacon light source for the external sub-beacon light source, and the outer edges of the illumination bands the sub headlights are arranged from the inside to the outside Aldo as the angle of inclination increases. In this way, both the order of connection according to an increase in the angle of inclination and the order of disposition of the outer edges of the lighting bands according to an increase in the angle of inclination are from the inner side to the outer side. In this way, these orders are coincident with each other. This allows the placement of the sub-beacon light sources and configuration of the light distributions of the sub-beacon light sources to be readily implemented. Therefore, it is easy to guarantee a relatively wide illumination range as the illumination range of each of the sub-beam light sources that emit light in different directions. (11) The sub-headlight unit according to (10), where when the vehicle is in a vertical state, the sub-headlight light source having a higher reference value is located higher than the sub-headlight source. headlamp having a lower reference value.
[0036] [036] The sub-beacon light sources are located so that their heights are lowered according to an increase in the angle of inclination. Accordingly, as to the extent of vertical movement of the sub-headlight light source from when the vehicle is in a vertical state to when the sub-headlight light source reaches the reference value, the extent of movement of the light source sub-headlamp having a higher reference value is greater than the range of motion of the sub-headlamp light source having a lower reference value.
[0037] [037] In a configuration (11), by placing the sub-beacon light source having a higher reference value in a higher position, a difference in height between the sub-beacon light sources when they are turned on is reduced . As a result, a difference between the strips of light generated on a road surface at the times when the sub-beacon light sources are turned on is reduced. Therefore, when observed by the driver, a difference between the shadows, which are produced when an obstacle (such as an unevenness in the road surface) exists, is reduced. This can result in more suitable lighting for each of a wide variety of situations. (12) The sub headlight unit according to (10), where when the vehicle is in a vertical state, the sub headlight light source having a higher reference value is located lower than the sub headlight source. headlamp having a lower reference value.
[0038] [038] The frequency of reaching the predetermined brightness is higher in the sub-beacon light source having a lower reference value than in the sub-beacon light source having a higher reference value. In a configuration (12), the sub-beacon light source having a lower setpoint is located at a relatively high position at a time when this sub-beacon light source is turned on. In this way, a relatively wide illumination range is guaranteed as the illumination range of the sub-beam light source having a lower reference value. In addition, since the sub-beacon light source is switched on at a relatively high position, it is easy to set up a lighting strip on the road surface. It is also easy for the driver to visually recognize an obstacle (such as unevenness in the road surface) and an area through the obstacle. This allows sub-beacon light sources to achieve the most appropriate lighting for a wide variety of situations. (13) Sub-headlight unit according to any one of (10) and (12), where the plurality of sub-headlight light sources are arranged next to each other, when the vehicle is in a vertical state, the positions of the sub-beacon light sources close to each other being partially coincident with respect to a height direction.
[0039] [039] In a configuration (13), a difference in height between the sub-beacon light sources at the times they are turned on is reduced. This can more efficiently suppress the occurrence of a situation in which the driver feels discomfort due to a change, which depends on the driving situation, in the illumination range of the sub-headlight light source within the driver's field of vision in a moment when the sub-beacon light source is turned on. This allows sub-beacon light sources to better achieve lighting for a wide variety of situations. (14) The sub-headlight unit according to (10), in which when the vehicle is in a vertical state, the plurality of sub-headlight sources is arranged in a horizontal direction.
[0040] [040] In a configuration (14), a difference in height between the sub-beacon light sources at the time they are turned on is reduced. This can more efficiently suppress the occurrence of a situation in which the driver feels discomfort due to a change, which depends on a driving situation, in the illumination range of the sub-headlight light source within the driver's field of vision in a moment when the light source of the sub headlight is turned on. This allows sub-beacon light sources to achieve more suitable lighting for a wide variety of situations. (15) The sub-headlight unit according to any of (10) to (14), where a front cover included in the vehicle has a curved surface that is convex outwards and extends from a front center part with respect to to the vehicle's wide direction in a backward and outward direction with respect to the vehicle's wide direction, the plurality of sub-headlight sources are arranged along the curved surface of the front cover.
[0041] [041] One configuration (15) allows the placement of sub-beacon light sources and the configuration of light distributions of the sub-beacon light sources to be readily implemented. In this way, it is easy to guarantee a relatively wide illumination range as the illumination range of each sub-beam light source that emits light in different directions. (16) The sub-headlight unit according to any of (10) to (15), where when the vehicle is in a vertical state, the outwardly located sub-headlight light source is located above a main headlight supplied in the vehicle, the headlight being configured to illuminate an area ahead in front of the vehicle.
[0042] [042] In a configuration (16), the sub-beacon light source that turns on when the angle of inclination is greater and is located in a high position. Accordingly, lighting can be done from a high position. This can delay a cut line approach time from the side of the vehicle according to an increase in the angle of inclination after the sub-headlight source is switched on. In addition, this can reduce a reduction in the illumination range, which occurs according to an increase in the angle of inclination. In addition, lighting from a high position allows the setting of the lighting range to be readily implemented. In addition, lighting from a high position makes obstacles (such as unevenness in the road surface) and an area behind the obstacle easily observable for the driver. (17) A sub-headlight unit for use on a vehicle that tilts in curves, the sub-headlight system including the sub-headlight unit according to one of (1) to (16); a control part that changes the brightness of the plurality of sub-headlight sources according to the vehicle's angle of inclination; and a detection part that detects a variable available to obtain the vehicle's tilt angle, where, when the vehicle's tilt angle reaches a reference value that is individually configured for each of the sub-headlight sources, the part control panel causing the corresponding sub-headlight source to display a predetermined brightness.
[0043] [043] In a configuration of (17), an AFS (Adaptive Front Lighting System) is achieved and can perform lighting with suitable lighting ranges for a wide variety of driving situations with suppression of an increase in size. (18) A vehicle that tilts in curves, the vehicle including the system according to (17).
[0044] [044] In a (18) configuration, lighting with lighting ranges suitable for a wide variety of driving situations is achieved by suppressing an increase in size.
[0045] [045] Here, in the present invention, the optical geometric axis is a straight line that passes through a light source and the center of a part of maximum illumination of the emitted light. The center of the maximum illumination part of the emitted light can be identified by the emission of light from a light source to a screen that is located in front of the light source. This light illumination test can be implemented by a method specified in JIS D1619. In addition, the cut line and lighting range having the predetermined lighting can be identified based on a result (such as an isolux distribution map) from the screen lighting test mentioned above. The cut line and the illumination range having the predetermined illumination in a plan view can be identified based on a road surface light distribution that is obtained by the convergence of the screen illumination test result mentioned above in the light distribution road surface. Conversion to road surface light distribution can be implemented by a conventionally known method. To be specific, through geometric calculation and commonly used design, the conversion of a screen lighting value into a road surface lighting value can be performed. In such a case, the following expression (I) is used. In the following expression (I), D represents a light source, E represents a point on a road surface, and F represents an intersection point at which the screen located between D and E forms an intersection with a straight line connecting D to E. Road surface lighting (Lx) = Screen lighting (Lx) x [Distance between D and F (m)) / (distance between D and E (m))] 2 (I)
[0046] [046] These and other objectives, characteristics, aspects and advantages of the present invention will become apparent to those skilled in the art from the detailed description, which, taken in conjunction with the attached drawings, describe some embodiments of the present invention.
[0047] [047] In the present invention, lighting with lighting bands suitable for a wide variety of driving situations is achieved by suppressing an increase in size.
[0048] [048] Figure 1 is a front elevation view schematically illustrating a motorcycle according to an embodiment of the present invention.
[0049] [049] Figure 2 is a block diagram illustrating a basic configuration regarding the motorcycle's sub-headlight light sources illustrated in figure 1.
[0050] [050] Figure 3 is a front elevation view schematically illustrating optical geometric axes and cut lines of the motorcycle's sub-headlight light sources in a vertical state.
[0051] [051] Figure 4 is a plan view schematically illustrating a headlight illumination band having L1 illumination in a case in which a vehicle passes through a curve having a radius R1 at a speed V1.
[0052] [052] Figure 5 is a plan view schematically illustrating a headlight illumination band having L1 illumination in a case in which a vehicle passes through a curve having a radius R1 at a speed V2.
[0053] [053] Figure 6 is a plan view illustrating schematically a range of illumination of a headlamp having L1 illumination in a case in which a vehicle passes through a curve having radius R1 at a speed V3.
[0054] [054] Figure 7 is a plan view schematically illustrating a headlight illumination band having L1 illumination in a case in which a vehicle passes through a curve having a radius R4 at a speed V4.
[0055] [055] Figure 8 is a plan view schematically illustrating a range of illumination of a headlight having L1 illumination in a case in which a vehicle passes through a curve having a radius R3 at speed V4.
[0056] [056] Figure 9 is a plan view schematically illustrating a headlight illumination strip having L1 illumination in a case in which a vehicle passes through a curve having a radius R2 at speed V4.
[0057] [057] Figure 10 is a plan view for the comparison between the lighting bands having L1 illumination illustrated in figures 4 to 6.
[0058] [058] Figure 11 is a plan view for comparison between the bands of lighting having an L2 lighting (L2> L1) under the same circumstances as in Figure 10.
[0059] [059] Figure 12 is a front elevation view schematically illustrating, on an enlarged scale, a part of a motorcycle according to another embodiment of the present invention.
[0060] [060] Figure 13 is a left side view illustrating, on an enlarged scale, a part of the motorcycle illustrated in figure 12.
[0061] [061] Figure 14 (a) and (b) are seen in front elevation illustrating, each schematically, on an enlarged scale, a part of a motorcycle according to another embodiment of the present invention.
[0062] [062] Figure 15 is a perspective view schematically illustrating a sub-headlight unit provided on motorcycles illustrated in figures 14 (a) and 14 (b).
[0063] [063] Figure 16 (a) to (d) are seen in front elevation illustrating, each schematically, on an enlarged scale, a part of a motorcycle according to another embodiment of the present invention.
[0064] [064] Figures 17 (a) to (f) are seen in front elevation, each schematically illustrating an enlarged scale, a part of a motorcycle according to another embodiment of the present invention.
[0065] [065] Figure 1 is a front elevation view schematically illustrating a motorcycle according to an embodiment of the present invention.
[0066] [066] A motorcycle 10 is an example of a vehicle that curves in curves according to the present invention. In the present invention, no particular limitation is imposed on the vehicle that leans in curves. For example, saddle-type vehicles including motorcycles, three-wheel motor vehicles, snow vehicles, and ATVs (all-terrain vehicles) can be mentioned. In the following description, the terms "front" and "back" are terms with respect to a direction of advance of the vehicle, the terms "up" and "down" are terms with respect to the vertical direction of the vehicle and terms "right" and "left" are terms with respect to a driver.
[0067] [067] Motorcycle 10 includes a handlebar 12. An operating switch 15 is provided on a left part of the handlebar 12 with respect to a vehicle-wide direction. The operating switch 15 includes a beam switch 15b and a flasher switch 15f (see figure 2). A steering axle (not shown) is attached to a central part of the handlebar 12 with respect to the vehicle's wide direction. The steering shaft extends downstream through a front tube (not shown). A front fork 17 is provided at a lower end of the steering axle. A front wheel 16 is rotatably supported at the lower end of the front fork 17. The front tube is an element that constitutes a vehicle body structure. In the present invention, no particular limitations are imposed on the structure of the vehicle body and a known conventional configuration is adopted.
[0068] [068] A front cover 18 covers a front part of the front tube having the steering axle passing through it. On a front surface of the front cover 18, a headlight 11 is provided in a central part with respect to the vehicle's wide direction. Headlight 11 includes a high beam light source 11H (running light) and a low beam light source 11L (overtaking light). The 11H high beam light source illuminates an area in front of motorcycle 10 at a height equal to or above a horizontal plane of the headlight 11. The 11L low beam light source illuminates an area in front of motorcycle 10 in a height below the horizontal plane of the main lighthouse 11.
[0069] [069] The 11H high beam light source and 11L low beam light source are configured so that only one is turned on at a time. The driver operates the beam switch 15b (see figure 2), and then turns on the 11H high beam light source and turns on the 11L low beam light source.
[0070] [070] Motorcycle 10 includes a sub-headlight 13. Sub-headlight 13 consists of two 13L and 13R sub-headlight units of the variable light distribution type. Each of the 13L and 13R sub-headlight units is provided on each side with respect to the vehicle's wide direction. The 13L sub-headlight unit includes a plurality of 13La, 13Lb, and 13Lc sub-headlight sources. The sub-headlamp light sources 13La, 13Lb, 13Lc are arranged in that order from the center in the direction of the upper left with respect to the width direction of the vehicle. The illumination bands of the 13La, 13Lb, 13Lc sub-headlight light sources are arranged in that order from the center towards the upper left side with respect to the vehicle's wide direction. The illumination ranges of the 13La, 13Lb and 13Lc sub-headlight light sources overlap each other. The 13R sub-beacon unit includes a plurality of 13Ra, 13Rb, and 13Rc sub-beacon light sources. The sub-headlamp light sources 13Ra, 13Rb, 13Rc are arranged in that order from the center towards the upper right with respect to the vehicle's wide direction. The illumination bands of the 13Ra, 13Rb, 13Rc sub-headlight light sources are arranged in that order from the center towards the upper right side with respect to the vehicle's wide direction. The illumination bands of the 13Ra, 13Rb, and 13Rc sub-beam light sources overlap each other.
[0071] [071] The 13L sub-headlight unit is arranged on the left side of the motorcycle 10 with respect to the vehicle's wide direction. The plurality of 13La, 13Lc sub-headlight light sources included in the 13L sub-headlight unit illuminates the side (left side) where the 13L sub-headlight unit is arranged with respect to the vehicle's wide direction. Different reference values are determined for 13La to 13Lc sub-beacon light sources, as will be described later. When a tilt angle of the motorcycle 10 tilting to the side (left side) where the 13L sub-headlight unit is located reaches a reference value, the sub-headlight light source for which that reference value is determined is switched on. The reference value increases in the order of the reference value determined for the 13La sub-beacon light source, the reference value determined for the 13Lb sub-beacon light source, and the reference value determined for the sub-beacon light source 13La. 13Lc headlight.
[0072] [072] As illustrated in figure 1, when motorcycle 10 is in a vertical state, the 13La, 13Lb, 13Lc sub-headlight sources are arranged in that order from the inside out (left side) with respect to the direction of vehicle width. That is, the sub-headlight light source having a higher reference value is located more outward (left side) with respect to the vehicle's width direction than the sub-headlight light source having a lower reference value.
[0073] [073] Additionally, when motorcycle 10 is in the vertical state, the 13La, 13Lb and 13Lc sub-headlight light sources are arranged in that order from the bottom side to the top side. That is, the sub-beacon light source having a higher reference value is located higher up than the sub-beacon light source having a lower reference value.
[0074] [074] The front cover 18 has a curved surface that is convex outwards and extends from a central front part with respect to the width direction of the vehicle in a rear direction and outwards with respect to the width direction of the vehicle. The plurality of sub-headlight light sources 13La to 13Lc is arranged along the curved surface of the front cover 18. That is, an optical geometric axis of the sub-headlight light source located outwards with respect to the vehicle's wide direction is oriented more outwardly with respect to the vehicle's width direction than an optical geometric axis of the sub-headlamp light source located inwardly with respect to the vehicle's width direction.
[0075] [075] Additionally, the 13Lc sub-headlamp light source that is located further out when motorcycle 10 is in the vertical state is positioned above headlamp 11 (the 11H high beam light source and the headlight light source) low 11L).
[0076] [076] Except that if the sub-beacon unit is provided on the right or left side of the symmetry, the 13R sub-beacon unit is identical to the 13L sub-beacon unit. Therefore, a description of it will be omitted.
[0077] [077] The optical geometric axes of the 13La to 13Lc sub-beacon light sources, and 13Ra to 13Rc are fixed, and do not move according to the angle of inclination. A reflector (not shown) of the headlight light source is also fixed, and does not move according to the angle of inclination. In this modality, no particular limitation is imposed on the sub-beacon light source. For example, an LED is adopted. A single focus type light source is also adopted as the sub headlight light source. As for how the sub-headlight light sources 13La to 13Lc and 13Ra to 13Rc are arranged on motorcycle 10, the arrangement described above is merely an illustrative example of the present invention. The present invention is not limited to that example.
[0078] [078] Indicators 14L and 14R, serving as direction indicators, are provided on both sides of the motorcycle 10 with respect to the vehicle's wide direction. The flashers 14L and 14R are configured so that only one of them flashes at a time. The driver operates the 15F flasher switch (see figure 2) and in this way, the 14L and 14R flasher is switched on / off.
[0079] [079] The plurality of 13La, 13Lb, and 13Lc sub-headlight light sources, which are positioned on the left side of the motorcycle 10 with respect to the vehicle's wide direction, are arranged between the main headlight 11 and the 14L flasher . The plurality of sub-headlight light sources 13Ra, 13Rb, 13Rc, which are positioned on the right side on the motorcycle 10, are arranged between the main headlight 11 and the flasher 14R. In the present invention, no particular limitation is imposed on the position relationship between the sub-headlight light source and the flasher with respect to the vehicle's wide direction. For example, it may be acceptable for the sub-headlight light source to be provided outside the flasher with respect to the vehicle's wide direction.
[0080] [080] The plurality of 13La, 13Lb, 13Lc sub-beacon light sources are provided above main headlight 11 and flasher 14L. The plurality of sub-headlamp light sources 13Ra, 13Rb, 13Rc is provided above headlamp 11 and flasher 14R.
[0081] [081] The plurality of sub-beacon light sources. 13La to 13Lc, which is provided on the left with respect to the vehicle's wide direction, illuminate an area at the front and on the left side of the motorcycle 10. The plurality of 13Ra to 13Rc sub-headlight sources, which are provided to the side right with respect to the vehicle's wide direction, illuminate an area to the front and to the right of the motorcycle 10.
[0082] [082] Figure 2 is a block diagram illustrating a basic configuration referring to the motorcycle's sub-headlight light sources illustrated in figure 1.
[0083] [083] Operation switch 15 includes beam switch 15B and flasher switch 15F. The beam switch 15B is connected to the high beam light source 11H and the low beam light source 11L included in the main beam 11. When the driver operates the beam switch 15B, the on / off of the beam light source high 11H and the low beam light source 11L is switched according to the operation performed on beam switch 15B.
[0084] [084] The 15F flasher switch is connected to the 14L and 14R flasher. When the driver operates the 15F flasher switch, one of the 14L and 14R flasher flashes according to the operation performed on the 15F flasher switch.
[0085] [085] On motorcycle 10, an attitude detection sensor 22 and a vehicle speed sensor 23 are provided. In this modality, the attitude detection sensor 22 is a gyro sensor that detects the angular velocity around a geometric axis in the front-rear direction of the motorcycle 10. The attitude detection sensor 22 supplies a signal to a controller 20 indicating the detected angular velocity (rolling rate) around the geometric axis in the front-back direction. The vehicle speed sensor 23 detects the speed of the vehicle, and supplies, with the controller 20, a signal indicating the detected vehicle speed. Each time a predetermined time delay occurs while driving, the controller 20 calculates the angle of inclination of the motorcycle 10 at the angular speed around the geometric axis in the front-rear direction and vehicle speed.
[0086] [086] In this mode, the roll rate is integrated with time, and the vehicle speed is used as correction information, thus calculating the angle of inclination. However, in the present invention, a method of calculating the tilt angle is not limited to that example. When calculating the tilt angle, vehicle speed is not an essential variable. To calculate the angle of inclination, a conventionally known method is adopted. For example, the calculation can be performed based on a static equilibrium equation by using a yaw rate (angular velocity around a geometric axis in the vertical direction) and the vehicle speed. The correction information is not limited to the speed of the vehicle. For example, it may be acceptable if you provide a plurality of gyro sensors and G sensors and use the values obtained from that sensors and vehicle speed as the correction information. Instead of vehicle speed, GPS position information and / or geomagnetic information can be used as correction information. No particular limitations are imposed on the sensors (detection parts) for detecting variables that are available to obtain the inclination angle. A suitable sensor can be provided according to variables available for the calculation.
[0087] [087] Controller 20 includes a memory (not shown). The memory stores, in the form of data, a plurality of reference values () to be compared with an angle of inclination. In this mode, the memory stores three reference values (a first reference value K1, a second reference value K2, and a third reference value K3). The first reference value K1, the second reference value K2, and the third reference value K3 satisfy the relationship of the first reference value K1 <second reference value K2 <third reference value K3.
[0088] [088] The first K1 reference value is associated with the 13La and 13Ra sub-beacon light sources.
[0089] [089] The second reference value K2 is associated with the 13Lb and 13Rb sub-headlight sources.
[0090] [090] The third reference value K3 is associated with the 13Lc and 13Rc sub-beacon light sources.
[0091] [091] That is, the first to third reference values K1 to K3 are greater than 0, and different from each other. The first to third reference values K1 to K3 are configured to be sequentially increasing values in intervals from 0. The interval between 0 and K1 is K1. When the interval between K2 and K1 is defined as K2 'and the interval between K3 and K2 is defined as K3', the intervals K1, K2 'and K3' satisfy K1> K2 '> K3'. In other words, a larger reference value (K1 to K3) has a smaller range (K1, K2 ', K3'). However, in the present invention, the relationship between the reference value and the range is not limited to that example.
[0092] [092] On motorcycle 10, in the course of a gradual increase in the tilt angle together with the left tilt of motorcycle 10, when the tilt angle reaches the first setpoint K1, the 13La sub-headlight light is switched on and when the tilt angle reaches the second setpoint K2, the 13Lb sub-beacon light source is switched on, and when the tilt angle reaches the third setpoint K3, the 13Lc sub-beacon light source is switched on . In this way, the 13La, 13Lb, 13Lc sub-beacon light sources are connected sequentially together with an increase in the angle of inclination. On the other hand, when the angle of inclination decreases, the 13Lc, 13Lb and 13La sub-headlight sources are turned off sequentially. The same applies to a case in which motorcycle 10 is tilted to the right.
[0093] [093] In the present invention, when the angle of inclination is less than a minimum reference value (K1) (for example, at a moment of direct forward driving), the sub-beam light source can be decreased. In such a case, when the sub-beacon light sources 13La, 13Lb, 13Lc are sequentially connected together with an increase in the angle of inclination, the sub-beacon light sources 13Rc, 13Rb and 13Ra can be sequentially turned off.
[0094] [094] More specifically, when the vehicle is tilted to one side (for example, to the left) with respect to the vehicle's wide direction so that the angle of inclination increases, the brightness of the plurality of sub-headlight sources (13La to 13Lc) that illuminate this side can be increased in order of the sub-headlight light source (13La) having the illumination band whose upper end edge is located lower than the sub-headlight light source (13Lc) having the lighting strip whose upper end edge is located higher up, while the brightness of the plurality of sub-headlight light sources (13Rc to 13Ra) that illuminates the other side (right side) of the vehicle with respect to the vehicle's wide direction it can be reduced in the order of the sub-headlight light source (13Rc) having the illumination band whose upper end edge is located above the sub-headlight light source (13Ra) having the illumination band whose upper end edge is is located below.
[0095] [095] Figure 3 is a front elevation view schematically illustrating the optical geometric axes and the cut lines of the motorcycle's sub-headlight light sources in a vertical state.
[0096] [096] Motorcycle 10 remains standing on level G ground. An optical A0 geometric axis of the 11L low beam light source is located below an H horizon of the 11L low beam light source. A Lo cut line of the 11L low beam light source is located above the optical geometric axis Ao, and located below the horizontal H of the 11L low beam light source. The Lo cut line extends right and left along the vehicle's wide direction.
[0097] [097] First, the optical geometric axes AL1 to AL3 of the sub-headlight light sources 13La to 13Lc will be described. For sub-headlight light sources 13La to 13Lc, the first setpoint K1, the second setpoint K2 and the third setpoint K3 are set, respectively. As described above, a larger reference value (K1 to K3) has a smaller range (K1, K2 ', K3').
[0098] [098] The optical geometrical axes AL1 to AL3 of the sub-headlight light sources 13La to 13Lc are located outwards in the order of the optical geometrical axes AL1 to AL3 with respect to the vehicle's wide direction. The optical geometric axes AL1 to AL3 of the sub-headlight light sources 13La to 13Lc are located above the optical geometric axis Ao of the low-beam light source 11L. With regard to the width direction of the motorcycle 10, the outer edges of the illumination bands of the sub-headlight light sources 13La to 13Lc having a predetermined illumination are, similarly to the optical geometric axes AL1 to AL3, located outwards with respect to vehicle width direction in the order of 13La to 13Lc sub-headlight light sources, although not shown in figure 3.
[0099] [099] The inclination angles θ1 to θ3 of the cut lines LL1 to LL3 of the sub-headlamp light sources 13La to 13Lc increase in the order of the inclination angles θ1 to θ3.
[0100] [0100] The slope angles θ1 to θ3 of the cut lines LL1 to LL3 of the sub-headlamp light sources 13La to 13Lc are determined to be values that increase in the ranges from 0 to θ1, θ2 and θ3 in that order. The range between 0 and θ1 is θ1. When the interval between θ2 and θ1 is defined as θ2 ’and the interval between θ3 and θ2 is defined as θ3’, the intervals θ1, θ2 ’and θ3’ satisfy θ1> θ2 ’> θ3’. In other words, a greater slope angle (θ1 to θ3) has a smaller range (θ1, θ2 ’, θ3’).
[0101] [0101] No particular limitation is imposed on the relationship between the slope angle (θ1 to θ3) of the cut line (LL1 to LL3) of each sub-beam light source (13La to 13Lc) and the reference value (K1 to K3) configured for the sub-beacon light source (13La to 13Lc). These values (angles) can be different or the same. A state in which these values are equal includes a state in which these values are substantially equal.
[0102] [0102] The cut lines LL1 to LL3 of the 13La to 13Lc sub-beacon light sources define the upper end edges of the lighting ranges of the 13La to 13Lc sub-beacon light sources, respectively, although not shown in figure 3 Therefore, the illumination ranges of 13La to 13Lc sub-beacon light sources are located below the cut lines LL1 to LL3 of 13La to 13Lc sub-beacon light sources. Accordingly, the lighting ranges of the 13La to 13Lc sub-headlight light sources are, in that order, located above. As the illumination bands of the 13La to 13Lc sub-beacon light sources are located further up, the outer edges of the illumination range of the 13La to 13Lc sub-beacon light sources having the predetermined illumination are located further out. Except that if the sub-beacon light sources are provided on the right or left side of the symmetry, the 13Ra to 13Rc sub-beacon light source is identical to the 13La to 13Lc sub-beacon light sources described above. Therefore, a description will be omitted.
[0103] [0103] Next, with reference to figures 4 to 6, a description will be provided for the lighting ranges of the low beam light source 11L (main beam 11) and the sub-beam light sources 13La to 13Lc in one in which case the motorcycle 10 described above goes through a curve having or radius R1 at different speeds V1, V2 and V3. In figures 4 to 6, X represents a direction in front of the motorcycle 10 that slopes on the curve and Y represents the left side with respect to the width direction of the motorcycle 10. Reference number 80 denotes a motorcycle route 10. The route 80 turns left, with a predetermined radius. The speed of motorcycle 10 increases in the order of speeds V1, V2 and V3.
[0104] [0104] In figure 4, motorcycle 10 passes on route 80 while making a left turn at speed V1 (inclination angle P1). The motorcycle 13La sub-headlight light source 10 is turned on at the angle of inclination P1. Figure 4 illustrates a state at that moment.
[0105] [0105] A lighting strip LB from the low beam light source 11L having the lighting L1 spreads in front of motorcycle 10 along the forward direction X. Since motorcycle 10 is tilted at the angle of inclination P1, the line of section L0 of the low beam light source 11L approaches motorcycle 10 from the left side of motorcycle 10 beyond the position 96 that the driver wants to see. Therefore, position 96 that the driver wishes to see is not covered by the LB illumination range of the 11L low beam light source having L1 illumination.
[0106] [0106] However, the 13La sub-beacon light source produces illumination along the optical geometric axis AL1, so that a SH1 illumination strip of the 13La sub-beacon light source having the L1 illumination covers the 96 position that the driver wants to see. Accordingly, the brightness of the driver's field of vision is guaranteed. The cut line LL1 of the 13La sub-headlight light source extends to the right and left along the vehicle's wide direction.
[0107] [0107] In figure 5, motorcycle 10 passes on route 80 while making a left turn at speed V2 (inclination angle P2). The motorcycle 13Lb sub-headlight light source 10 is turned on at the angle of inclination P2. Figure 5 illustrates a state at that moment.
[0108] [0108] The LB illumination range of the 11L low beam light source having the L1 illumination spreads in front of the motorcycle 10 along the X forward direction. The SH1 illumination range of the 13La sub-headlight light source having the illumination L1 extends forward in the forward direction X, along a left side edge of the LB illumination strip of the 11L low beam light source having L1 illumination. Since motorcycle 10 is tilted at the angle of inclination P2, the cut line LL1 of the sub-headlight light source 13La approaches motorcycle 12 from the left side of motorcycle 10 beyond the position 96 that the driver wishes to see. Therefore, position 96 that the driver wants to see is not covered by the SH1 illumination range of the 13La sub-headlight light source having the L1 illumination.
[0109] [0109] However, the 13Lb sub-beacon light source produces illumination along the AL2 optical geometric axis, so that a SH2 illumination strip of the 13Lb sub-beacon light source having the L1 illumination covers the 96 position that the driver wants to see. Accordingly, the brightness of the driver's field of vision is guaranteed. The cut line LL2 of the 13Lb sub-headlight light source extends to the right and left along the vehicle's wide direction.
[0110] [0110] In figure 6, motorcycle 10 passes on route 80 while making a left turn at speed V3 (angle of inclination P3). The 13Lc sub-headlight light of motorcycle 10 is turned on at the angle of inclination P3. Figure 6 illustrates a state at that time.
[0111] [0111] The LB illumination strip of the 11L low beam light source having the LB illumination of the 11L low beam light source having the L1 illumination spreads in front of the motorcycle 10 along the forward direction X. Each of the lanes of illumination SH1 and SH2 of the sub-headlamp light sources 13La and 13Lb having the L1 illumination extends ahead in the forward direction X, along the left side edge of the LB illumination strip of the 11L low-beam light source having the L1 lighting. Since motorcycle 10 is tilted at the angle of inclination P3, the cut line LL2 of the sub-headlight light source 13Lb approaches motorcycle 10 from the left side of motorcycle 10 beyond the position 96 that the driver wants to see. Therefore, position 96 that the driver wants to see is not covered by the SH2 illumination range of the 13Lb sub-headlight light source having the L1 illumination.
[0112] [0112] However, the 13Lc sub-beacon light source produces illumination along the optical geometric axis AL3, so that a strip of light SH3, from the 13Lc sub-beacon light source having the L1 illumination covers the position 96 that the driver wants to see. Accordingly, the brightness of the driver's field of vision is guaranteed. The cut line LL3 of the 13Lc sub-headlight light source extends right and left along the vehicle's wide direction.
[0113] [0113] As illustrated in figures 4 to 6, in the course of motorcycle 10 increasing the angle of inclination while turning to the left, the 13La sub-headlight light source is first switched on when the cut-off line L0 of the light source of 11L low beam is approaching motorcycle 10 from the left side of motorcycle 10, and 13Lb sub-beam light source is turned on when the cut line LL1 of 13La sub-beam light source is approaching motorcycle 10 a from the left side of the motorcycle 10.
[0114] [0114] As described above, in this modality, as the reference values K1 to K3 of 13La to 13Lc sub-beacon light sources are larger, the outer edges of the SH1 to SH3 lighting bands of 13La sub-beacon light sources the 13Lc having the predetermined illumination L1 are located further out with respect to the vehicle's width Y direction in a flat view (figures 4 to 6). Accordingly, on the same curve, as the speed increases, a more external position in relation to the vehicle's wide direction is illuminated. Therefore, a change in the driver's line of sight can be met. This allows lighting to be performed with a range of lighting suitable for each of a wide variety of situations.
[0115] [0115] Next, with reference to figures 7 to 9, a description will be provided for the lighting ranges of the low beam light source 11L (main beam 11) and the sub beam light sources 13La to 13Lc in one in which case motorcycle 10 passes through curves 81, 82 and 83 having different radii R4, R3 and R2 at speed V4. In figures 7 to 9, motorcycle 10 passes through curves having different radii R4, R3 and R2 at the same vehicle speed V4, while in figures 4 to 6, motorcycle 10 passes the same curve R1 at vehicle speeds different V1, V2 and V3. Except for this point, the content of figures 7 to 9 is the same as the content of figures 4 to 6. Therefore, in figures 7 to 9, the same configurations as the configurations illustrated in figures 4 to 6 are denoted by references equal numeric numbers. In the following, the differences of figures 7 to 9 with respect to figures 4 to 6 will be described, and a description of the common points with figures 4 to 6 and figures 7 to 9 will be omitted. The rays R4, R3 and R2 satisfy the ratio of R4> R3> R2. The angle of inclination of motorcycle 10 when motorcycle 10 passes through curves having different radii R4, R3, and R2 at speed V4 is P1, P2 and P3 (P1 <P2 <P3), respectively.
[0116] [0116] Figure 7 is a plan view schematically illustrating the headlight illumination range having L1 illumination in a case in which motorcycle 10 passes through curve 81 having radius R4 at speed V4.
[0117] [0117] In a situation illustrated in figure 7, position 96 that the driver wants to see is not covered by the lighting range LB of the low beam light source 11L having the lighting L1. However, the 13La sub-beacon light source produces illumination along the optical geometric axis AL1, so that the SH1 illumination range of the 13La sub-beacon light source having the L1 illumination covers the part 96 that the driver wants to see . Accordingly, the brightness of the driver's field of vision is guaranteed.
[0118] [0118] Figure 8 is a plan view schematically illustrating the headlight illumination range having L1 illumination in a case in which motorcycle 10 passes through a curve 82 having radius R3 at speed V4.
[0119] [0119] In a situation illustrated in figure 8, position 96 that the driver wants to see is not covered by the SH1 illumination range of the 13La sub-headlight light source having the L1 illumination. However, the 13Lb sub-beacon light source produces illumination along the optical geometric axis AL2, so that the SH2 illumination range of the 13Lb sub-beacon light source having L1 illumination covers the position 96 that the driver wants to see. Accordingly, the brightness of the driver's field of vision is guaranteed.
[0120] [0120] Figure 9 is a plan view schematically illustrating the headlight illumination range having the L1 illumination in a case in which motorcycle 10 passes through curve 83 having radius R2 at speed V4.
[0121] [0121] In figure 9, position 96 that the driver wants to see is not covered by the SH2 illumination range of the 13Lb sub-headlight light source having the L1 illumination. However, the 13Lc sub-headlight light source produces illumination along the AL3 optical geometric axis so that the SH3 illumination range of the 13Lc sub-headlight light source having the L1 illumination covers the position 96 that the driver wants to see. According to the brightness of the field and the driver's vision is guaranteed.
[0122] [0122] As described above, in this modality, since the reference values K1 to K3 of the 13La to 13Lc sub-beacon light sources are larger, the outer edges of the SH1 to SH3 lighting bands of the 13La sub-beacon light sources the 13Lc having the predetermined illumination L1 are located further out with respect to the width direction Y of the vehicle in a flat view (figures 7 to 9). Accordingly, running at the same vehicle speed, since the radius of a curve is smaller, a position further out in relation to the vehicle's wide direction is illuminated. This allows lighting to be carried out with a suitable lighting range for each of the wide variety of shooting situations.
[0123] [0123] Next, the position relationship between the illumination ranges SH1, SH2 and SH3 of the sub-headlight light sources 13La to 13Lc having the L1 illumination will be described in relation to figure 10.
[0124] [0124] Figure 10 is a plan view for comparison between the lighting bands having the L1 lighting illustrated in figures 4 to 6.
[0125] [0125] When motorcycle 10 is tilted at the angle of inclination P1, the sub-headlight light source 13La produces illumination along the optical geometric axis AL1, to generate the illumination range SH1 (figure 4). W1 indicates an outer edge of the SH1 light strip with respect to the vehicle's wide direction.
[0126] [0126] When motorcycle 10 is tilted at the angle of inclination P2, the 13Lb sub-headlight light source produces illumination along the optical geometric axis AL2 to generate the SH2 illumination range (figure 5). W2 indicates an outer edge of the SH2 lighting strip with respect to the vehicle's wide direction.
[0127] [0127] When motorcycle 10 is tilted at the angle of inclination P3, the 13Lc sub-headlight light source produces illumination along the optical geometric axis AL3 to generate the SH3 illumination range (figure 6). W3 indicates an outer edge of the SH3 lighting strip with respect to the vehicle's wide direction.
[0128] [0128] In this mode, the outer edges W1, W2 and W3 of the illumination bands SH1, SH2 and SH3 are located outwards in the order of W1, W2 and W3 with respect to the vehicle's width Y direction. In other words, as the reference values K1 to K3 of the sub-headlamp light sources 13La to 13Lc sound larger, the outer edges W1, W2 and W3 of the lighting ranges SH1, SH2 and SH3 of the sub-headlamp light sources 13La the 13Lc having the L1 illumination are located further out with respect to the width Y direction of the motorcycle 10 in a flat view (figure 10). This makes the SH1, SH2 and SH3 lighting strips more easily cover the 96 position that the driver wants to see (figures 4 to 6). In this way, the occurrence of a period of time during which the illumination bands SH1, SH2 and SH3 do not sufficiently cover the position 96 that the driver wishes to see is more reliably suppressed.
[0129] [0129] In figure 10, the outer edges W1, W2 and W3 of the illumination bands SH1, SH2 and SH3 having the illumination L1 are located outwardly in the order of W1, W2, W3 with respect to the vehicle's width Y direction. This position relationship is, however, established even when the lighting is not L1.
[0130] [0130] Figure 11 is a plan view for the comparison between the lighting bands having an L2 illumination (L2> L1) under the same circumstances as in Figure 10.
[0131] [0131] The SH1 ', SH2' SH3 'lighting bands are generated by the 13La, 13Lb and 13Lc sub-headlight light sources, respectively, and located within the SH1, SH2 and SH3 lighting bands (figure 10), respectively. The outer edges W1 ’, W2’, and W3 of the illumination bands SH1 ’, SH2’ and SH3 ’are located further out in the order of W1’, W2 ’and W3’ with respect to the width direction Y of the vehicle. In other words, as the reference values from K1 to K3 of the sub-headlamp light sources 13La to 13Lc are higher, the outer edges W1 ', W2' and W3 'of the lighting ranges SH1', SH2 'and SH3' of the sub-headlight light sources 13La to 13Lc having the L2 illumination are located further out with respect to the width Y direction of the motorcycle 10 in a flat view (figure 11). Thus, even in a case in which L2 lighting, the position relationship described above is established.
[0132] [0132] An isolux curve of each illumination in the illumination range of the sub-beacon light source in a flat view has an annular shape that surrounds a part of maximum illumination. An isolux curve of lesser illumination is farther from the maximum illumination part than an isolux curve of greater illumination. This position relationship is established regardless of the lighting level. Therefore, in the present invention, no particular limitation is imposed in which the lighting should be used in the comparison between the positions of the outer edges of the illumination bands of the sub-beacon light sources. The lighting used in comparison can be determined to be adequate. As illustrated in figures 10 and 11, although the lighting is changed, the same result is obtained by comparing the outer edges.
[0133] [0133] As described above, on motorcycle 10, as the reference values K1 to K3 of the sub-headlight light sources 13La to 13Lc, 13Ra to 13Rc are larger, the outer edges W1, W2 and W3 of the SH1 lighting bands , SH2 and SH3 of the sub-headlamp light sources 13La to 13Lc, 13Ra to 13Rc having the predetermined lighting are located further out with respect to the width Y direction of the motorcycle 10 in a flat view. Accordingly, as the vehicle's tilt angle becomes larger, a position further out in relation to the vehicle's wide direction is illuminated. This can respond to a change in the line of sight of a driver who is looking to see a farther position ahead on a route or a farther position on a curve. As a result, lighting can be performed with a suitable lighting range for each of a wide variety of shooting situations.
[0134] [0134] In the following, another embodiment of the present invention will be described with reference to figures 12 to 17. In figures 12 to 17, the configurations corresponding to the configurations illustrated in figures 1 to 11 are denoted by the same numerical references as in figures 1 to 11. Furthermore, in the modality illustrated in figures 12 to 17, according to an increase in the angle of inclination, the sub-headlight light sources 13La, 13Lb and 13Lc of the sub-headlight unit 13L reach a predetermined brightness sequentially in that order. Except that if the sub-beacon unit is provided on the right or left side of the symmetry, the 13R sub-beacon unit is identical to the 13L sub-beacon unit. In a motorcycle illustrated in figures 12 to 17, a basic configuration and illumination range of the sub-headlight light source are substantially the same as in the figures 2 to 11) illustrated in figures 1 to 11. Therefore, a description will be omitted. In the following, the configurations different from the configurations illustrated in figures 1 to 11 will be basically described.
[0135] [0135] Figure 12 is a front elevation view schematically illustrating, on an enlarged scale, a part of a motorcycle according to another embodiment of the present invention. Figure 13 is a left side view illustrating, on an enlarged scale, a part of the motorcycle shown in Figure 12.
[0136] [0136] A motorcycle 10 includes two 13L and 13R sub-headlight units of the variable light distribution type. Each of the 13L and 13R sub-headlight units is provided on each side with respect to the vehicle's wide direction.
[0137] [0137] The 13L sub-beam unit includes a plurality of 13La, 13Lb and 13Lc sub-beam light sources. The sub-headlight light sources 13La, 13Lb, 13Lc are sequentially arranged from the center in an upward and outward direction with respect to the vehicle's wide direction. That is, the sub-headlight light sources 13La, 13Lb, 13Lc are arranged in that order from the inside out, and arranged in that order from the bottom side to the top side.
[0138] [0138] The plurality of 13La, 13Lb, 13Lc sub-beacon light sources are arranged close together. The sub-beacon light sources 13La and 13Lb next to each other, and the sub-beacon light sources 13Lb and 13Lc next to each other. When motorcycle 10 is in the vertical state, the positions of the sub-headlight light sources arranged close to each other are partially coincident with respect to a height direction. The plurality of 13La, 13Lb and 13Lc sub-beacon light sources are arranged in the shape of an arch projecting downward and outward.
[0139] [0139] Each of the 13La, 13Lb and 13Lc sub-beacon light sources has a shape that extends from the bottom and inner side with respect to the vehicle's width direction to the top and outside with respect to the width direction. of the vehicle. The longer sides of the 13La, 13Lb and 13Lc sub-beam light sources extend along a direction of the 13La, 13Lb and 13Lc sub-beam light sources. The shorter sides of the 13La, 13Lb, and 13Lc sub-beam light sources are opposite each other.
[0140] [0140] When motorcycle 10 is in the vertical state, the 13Lc sub-headlight light source, which is positioned in an upper and outer position among the plurality of 13La to 13Lc sub-headlight light sources, is located above the headlight main 11.
[0141] [0141] When motorcycle 10 is in the vertical state (see figure 13), the plurality of sub-headlight light sources 13La to 13Lc is located behind the main headlight 11.
[0142] [0142] Figures 14 (a) and 14 (b) are seen in front elevation illustrating, each schematically, on an enlarged scale, a part of a motorcycle according to another embodiment of the present invention.
[0143] [0143] In an example illustrated in figure 14 (a), headlight 11 is provided in a central part on the front surface of front cover 18 of motorcycle 10. Headlight 11 includes the high beam light source 11H located above and the 11L low beam light source located below. It may be acceptable for the 11H high beam light source to be located further down and the 11L low beam light source to be located further up.
[0144] [0144] An upper edge of headlamp 11 (high beam light source 11H) extends in the horizontal direction. The 13L sub-headlight unit is provided on the front cover 18 at a location above the main headlight 11. The plurality of 13La, 13Lb, and 13Lc sub-headlight sources included in the 13L sub-headlight unit are arranged along the top edge headlamp 11 in the horizontal direction, and overlaps headlamp 11 with respect to the vertical direction.
[0145] [0145] In figure 14 (a), each of the 13La, 13Lb, 13Lc sub-beacon light sources is formatted so that its length in relation to the vertical direction is greater than the length in relation to the width direction of the vehicle. The long sides of each of the 13La, 13Lb and 13Lc sub-beam light sources are opposite each other. The shorter sides of each of the 13La, 13Lb and 13Lc sub-beacon light sources extend along a direction of disposition of the 13La, 13Lb and 13Lc sub-beacon light sources.
[0146] [0146] In the present invention, the horizontal direction includes a substantially horizontal direction. For example, in a case where the positions of all 13La, 13Lb and 13Lc sub-headlight light sources included in the 13L sub-headlight unit are partially coincident with respect to height direction when viewed from the front side of the motorcycle 10 , it can be said that the 13La, 13Lb and 13Lc sub-beacon light sources are arranged in a substantially horizontal direction.
[0147] [0147] In an example illustrated in figure 14 (b), unlike the example illustrated in figure 14 (a), the sub-headlight unit 13L is arranged on the front cover 18 in a location below the main headlight 11. The plurality of sources 13La, 13Lb, 13Lc sub-headlight included in the 13L sub-headlight unit are arranged along a lower edge of the main headlight 11 in the horizontal direction, and overlap the main headlight 11 with respect to the vertical direction.
[0148] [0148] In figure 14 (b) each of the 13La, 13Lb, 13Lc sub-headlight light sources is formatted so that the length in relation to the vehicle's wide direction is greater than the length in relation to the vertical direction. The long sides of each of the 13La, 3Lb and 13Lc sub-beacon light sources extend along a direction of disposition of the 13La, 13Lb and 13Lc sub-beacon light sources. The shorter sides of each of the 13La, 13Lb and 13Lc sub-beacon light sources are opposite each other.
[0149] [0149] Figure 15 is a perspective view schematically illustrating the sub-headlight unit provided on motorcycles illustrated in figures 14 (a) and 14 (b).
[0150] [0150] The 13L sub-headlight unit includes a plurality of 13La to 13Lc sub-headlight sources. The plurality of sub-headlight light sources 13La to 13Lc are mounted on a single base plate 131 having a flat plate shape. The base plate 131 is accommodated in a single wrap 135. In wrap 135, a heat dissipating fin 136 integrated into wrap 135 is located. The wrap 135 and the heat dissipation fin 136 serve as a heat dissipation mechanism provided in the sub-headlight unit 13. The heat-dissipation mechanism is shared by the plurality of 13La to 13Lc sub-headlight sources.
[0151] [0151] The frequency of switching on the 13La sub-beacon light source having a lower reference value is higher than the frequencies of switching on the 13Lb and 13Lc sub-beacon light sources having higher reference values. A period of time during which the sub-headlight light source 13La having a lower setpoint is turned on is greater than a period of time during which the sub-headlight light sources 13Lb and 13Lc having higher setpoint values are turned on . Here, when the 13La sub-beacon light source having a lower reference value is switched on with the predetermined brightness, the 13Lb and 13Lc sub-beacon light sources having higher reference values than the 13La sub-beacon light source are not linked with the predetermined brightness. Therefore, the 13La sub-beacon light source, while switched on with the predetermined brightness, can use parts of the value-dissipation mechanism allocated to the other 13Lb and 13Lc sub-beacon light sources. As a result, the value-dissipation mechanism may be reduced in size.
[0152] [0152] Lenses 134 (134La to 134Lc) are provided on the front of the 13La to 13Lc sub-headlight sources. Each of the lenses 134 has a convex surface at a front. As shown in figure 15, the convex surface of lens 134 projects towards the front side of the vehicle. In this embodiment, lenses 134 are not exposed to a surface of the front cover 18. On the front cover 18, an external cover (not shown) having translucency is provided. The outer cover extends across the surface of the front cover 18 and is spaced from the lenses 134. The light emitted from the sub-headlight light sources 13La to 13Lc falls on the lenses 134. The lenses 134 form a light distribution that is emitted from lenses 134. Light passes through lenses 134, and then passes through the outer cover, to be sent to the front and out (towards the left front direction) of the motorcycle 10. An external cover format in this mode corresponds to a shape of the sub-headlight light sources as visually recognized from outside the motorcycle 10.
[0153] [0153] With reference to figures 16 (a) to 16 (d), a description will be provided for examples in which, according to an increase in the angle of inclination, the plurality of sub-beacon light sources reach the predetermined brightness sequentially from the sub-headlight light source located on the lower and inner side with respect to the vehicle's wide direction to the sub-headlight light source located on the upper and outer side with respect to the vehicle's wide direction.
[0154] [0154] Figures 16 (a) to 16 (d) are seen in front elevation, each schematically illustrating, on an enlarged scale, a part of a motorcycle according to another embodiment of the present invention.
[0155] [0155] In an example illustrated in figure 16 (a), a motorcycle 10 includes headlights 11 of the type of two lamps. Each of the main headlamps 11 is arranged on each of the right and left parts on the front surface of the front cover 18. The sub-headlamp light sources 13La, 13Lb, 13Lc are arranged above the main headlight on the left side 11.
[0156] [0156] The 13La, 13Lb, 13Lc sub-headlamp light sources are arranged sequentially from the bottom and inside with respect to the vehicle's width direction to the top and left with respect to the vehicle's width direction. The positions where 13La, 13Lb, 13Lc sub-headlight sources are provided are not aligned with each other with respect to the vehicle's wide direction. The 13La, 13Lb, and 13Lc sub-beacon light sources are arranged in the shape of an arc projecting downward and outward. The 13La, 13Lb and 13Lc sub-beacon light sources are arranged close together. The positions of the 13La, 13Lb, 13Lc sub-headlight sources next to each other are partially coincident with respect to the height direction.
[0157] [0157] All 13La, 13Lb and 13Lc sub-headlight light sources are located above main headlight 11.
[0158] [0158] Each of the 13La, 13Lb, 13Lc sub-beacon light sources has a shape that extends from the bottom and inner side with respect to the vehicle's wide direction to the top and outside with respect to the wide direction of the vehicle. The long sides of each of the 13La, 13Lb, and 13Lc sub-beacon light sources extend along a direction of disposition of the 13La, 13Lb and 13Lc sub-beacon light sources. The shorter sides of each of the 13La, 13Lb and 13Lc sub-beacon light sources are opposite each other.
[0159] [0159] In an example illustrated in figure 16 (b), a single lamp type headlight 11 is arranged in a central part on the front surface of the front cover 18.
[0160] [0160] The 13La, 13Lb, 13Lc sub-headlight light sources are arranged sequentially from the bottom and inner side with respect to the vehicle's wide direction to the top and outside with respect to the vehicle's wide direction. The positions where the 13La, 13Lb, and 13Lc sub-headlight light sources are provided are not aligned with each other with respect to the vehicle's wide direction. The 13La, 13Lb and 13Lc sub-beam light sources are arranged in the shape of an arc projecting downward and outward. The sub-headlight light sources 13La, 13Lb and 13Lc are arranged close together. The positions of the 13La, 13Lb, and 13Lc sub-headlight sources next to each other are partially coincident with respect to the height direction.
[0161] [0161] The 13La sub-beacon light source, which is positioned further down, is located below main headlight 11. With respect to the height direction, the position of the 13Lb sub-beacon light source, which is positioned more towards above, it is partially coincident with the position of the main headlight 11. The 13Lc sub-headlight light source, which is positioned further out, is located further out of the main headlight 11 with respect to the vehicle's wide direction.
[0162] [0162] Each of the 13La, 13Lb, 13Lc sub-beacon light sources has a shape that extends from the bottom and inner side with respect to the vehicle's width direction to the top and outside with respect to the width direction. of the vehicle. The long sides of each of the 13La, 13Lb, 13Lc sub-beacon light sources extend along a direction of disposition of the 13La, 13Lb, 13Lc sub-beacon light sources. The shorter sides of each of the 13La, 13Lb, and 13Lc sub-beacon light sources are opposite each other.
[0163] [0163] In an example illustrated in figure 16 (c), motorcycle 10 includes main headlights 11 of the type of two lamps. Each of the main headlamps 11 is arranged in each of the right and left parts on the front surface of the front cover 18. The sub-headlight light sources 13La, 13Lb and 13Lc are arranged on the outside (left side) of the left main headlight 11 .
[0164] [0164] The 13La, 13Lb and 13Lc sub-headlight light sources are arranged sequentially from the bottom and inner side with respect to the vehicle's wide direction to the left and top side with respect to the vehicle's wide direction. The light sources of the 13La, 13Lb, and 13Lc sub headlamp overlap each other with respect to the vertical direction.
[0165] [0165] The 13Lc sub-beacon light source, which is positioned higher up, is located above the main headlight 11. With respect to the height direction, the position of the 13La sub-beacon light source, which is positioned lower , is partially coincident with the position of the headlight light source.
[0166] [0166] Each of the 13La, 13Lb and 13Lc sub-headlamp light sources has a shape that extends from the bottom and inner side with respect to the vehicle width direction to the top and outside with respect to the vehicle width direction. . The long sides of each of the 13La, 13Lb and 13Lc sub-beam light sources are placed with respect to the vertical direction.
[0167] [0167] In an example illustrated in figure 16 (d), motorcycle 10 includes main headlights 11 of the type of two lamps. Each of the main headlamps 11 is arranged in each of the right and left parts on the front surface of the front cover 18. The sub-headlamp light sources 13La, 13Lb and 13Lc are arranged above the left headlamp 11.
[0168] [0168] The 13La, 13Lb and 13Lc sub-headlamp light sources are arranged sequentially from the bottom and inner side with respect to the vehicle's width direction to the left and top with respect to the vehicle's width direction. The positions in which the 13La, 13Lb, and 13Lc sub-headlight sources are provided are not aligned with each other with respect to the vehicle's wide direction. The 13La, 13Lb, 13Lc sub-beacon light sources are arranged in the shape of an arc projecting upward and inward. The sub-headlamp light sources 13La, 13Lb, 13Lc are arranged close together. The positions of the 13La, 13Lb and 13Lc sub-headlight sources next to each other are partially coincident with respect to the height direction.
[0169] [0169] All sources of sub-headlight. 13La, 13Lb and 13Lc are located above main lighthouse 11.
[0170] [0170] Each of the 13La, 13Lb and 13Lc sub-beacon light sources has a shape that extends from the bottom and outside with respect to the vehicle's width direction to the top and inside with respect to the width direction of the vehicle. The longer sides of the 13La, 13Lb and 13Lc sub-headlight sources are opposite each other with respect to the vehicle's wide direction. The shorter sides of each of the 13La, 13Lb, 13Lc sub-beacon light sources extend along a direction of disposition of the 13La, 13Lb and 13Lc sub-beacon light sources.
[0171] [0171] With reference to figures 17 (a) to 17 (f), a description will be provided of the examples in which, according to an increase in the angle of inclination, the plurality of sub-beacon light sources reaches the predetermined brightness sequentially from the sub-headlight light source located on the upper and inner side with respect to the vehicle's wide direction to the sub-headlight light source located on the lower and outer side with respect to the vehicle's wide direction.
[0172] [0172] Figures 17 (a) to 17 (f) are seen in front elevation illustrating, each schematically, on an enlarged scale, a part of a motorcycle according to another embodiment of the present invention.
[0173] [0173] In an example illustrated in figure 17 (a), a headlight 11 of the single lamp type is arranged in a central part of the front surface of the front cover 18.
[0174] [0174] The 13La, 13Lb and 13Lc sub-headlight light sources are arranged on the upper and outer side of the main headlight 11, sequentially from the upper and lower side with respect to the vehicle's wide direction to the lower and outer side with relation to the vehicle's wide direction.
[0175] [0175] Each of the 13La, 13Lb and 13Lc sub-headlamp light sources has a shape that extends from the bottom and inside side with respect to the vehicle's width direction to the top and outside with respect to the width direction. of the vehicle. The shorter sides of each of the 13La, 13Lb and 13Lc sub-beacon light sources extend along a direction of disposition of the 13La, 13Lb and 13Lc sub-beacon light sources. The long sides of each of the 13La, 13Lb and 13Lc sub-beam light sources are opposite each other.
[0176] [0176] In an example illustrated in figure 17 (b), a headlight 11 of the single lamp type is arranged in a central part of the front surface of the front cover 18.
[0177] [0177] The 13La, 13Lb, and 13Lc sub-headlight light sources are arranged on the upper and outer side of the main headlight 11, sequentially from the upper and inner side with respect to the vehicle's wide direction towards the lower and outer side with respect to the vehicle's wide direction. The 13La, 13Lb, and 13Lc sub-beacon light sources are arranged in the shape of an arc projecting upward and outward.
[0178] [0178] Each of the 13La, 13Lb and 13Lc sub-beacon light sources has a shape that extends from the bottom and inner side with respect to the vehicle's width direction to the top and outside with respect to the width direction. of the vehicle. The shorter sides of each of the 13La, 13Lb, and 13Lc sub-beacon light sources extend along a disposition direction of the 13La, 13Lb and 13Lc sub-beacon light sources. The long sides of each of the 13La, 13Lb and 13Lc sub-beam light sources are opposite each other.
[0179] [0179] In an example illustrated in figure 17 (c), a headlight 11 of the single lamp type is arranged in a central part of the front surface of the front cover 18.
[0180] [0180] The 13La, 13Lb and 13Lc sub-headlight light sources are arranged on the left side of the main headlight 11, sequentially from the upper and inner side with respect to the vehicle's wide direction to the lower and outer side with respect to the vehicle width direction.
[0181] [0181] Each of the 13La, 13Lb and 13Lc sub-headlamp light sources has a shape that extends from the bottom and the inside with respect to the vehicle's width direction to the top and outside with respect to the width direction. of the vehicle. The shorter sides of each of the 13La, 13Lb and 13Lc sub-beacon light sources extend along with a direction of the layout of the 13La, 13Lb and 13Lc sub-beacon light sources. The long sides of each of the 13La, 13Lb and 13Lc sub-beam light sources are opposite each other.
[0182] [0182] In an example illustrated in figure 17 (d), motorcycle 10 includes main headlights 11 of the two-lamp type. Each of the main headlights 11 is arranged in each of the right and left parts on the front surface of the front cover 18.
[0183] [0183] The 13La, 13Lb and 13Lc sub-headlamp light sources are arranged above the main headlamp 11, sequentially from the upper and inner side with respect to the vehicle's wide direction to the lower and outer side with respect to the direction of vehicle width.
[0184] [0184] Each of the 13La, 13Lb and 13Lc sub-beacon light sources has a shape that extends from the bottom and inner side with respect to the vehicle's width direction to the top and outside with respect to the width direction. of the vehicle. The long sides of each of the 13La, 13Lb and 13Lc sub-beacon light sources are tilted at an angle of inclination that varies between the 13La, 13Lb and 13Lc sub-beacon light sources. The longer sides of the sub-beam light source located above are slanted at a greater angle of inclination than the larger sides of the sub-beam light source located below.
[0185] [0185] In an example illustrated in figure 17 (e), a single headlight type 11 headlight is arranged in a central part on the front surface of the front cover 18. An upper edge of headlight 11 has a curved shape (arc circular) projecting upwards.
[0186] [0186] The 13La, 13Lb, and 13Lc sub-headlight light sources are provided on one side of the main headlight 11 with respect to the vehicle's wide direction and arranged along the top edge of the main headlight 11, sequentially from the side upper and inner with respect to the width direction of the vehicle to the bottom and outer with respect to the width direction of the vehicle. The 13La, 13Lb and 13Lc sub-beacon light sources are arranged in the shape of an arc projecting upwards and outwards.
[0187] [0187] Each of the 13La, 13Lb and 13Lc sub-headlamp light sources has a shape that extends from the bottom and outside with respect to the vehicle's width direction to the top and inside with respect to the width direction of the vehicle. The long sides of each of the 13La, 13Lb and 13Lc sub-beacon light sources extend along a direction of disposition of the 13La, 13Lb and 13Lc sub-beacon light sources. The shorter sides of each of the 13La, 13Lb and 13Lc sub-beacon light sources are opposite each other.
[0188] [0188] In an example illustrated in figure 17 (f), motorcycle 10 includes headlights 11 of the type of two lamps. Each of the main headlights 11 is arranged in each of the right and left parts on the front surface of the front cover 18.
[0189] [0189] The 13La, 13Lb and 13Lc sub-headlight light sources are arranged on the upper left side of the main headlight 11, sequentially from the upper and lower side with respect to the vehicle's width direction to the lower and outer side with respect to to the vehicle's wide direction.
[0190] [0190] Each of the 13La, 13Lb and 13Lc sub-beacon light sources has a shape that extends from the bottom and inner side with respect to the vehicle's width direction to the top and outside with respect to the width direction. of the vehicle. The shorter sides of each of the 13La, 13Lb and 13Lc sub-beacon light sources extend along a direction of disposition of the 13La, 13Lb, 13Lc sub-beacon light sources. The long sides of each of the 13La, 13Lb, and 13Lc sub-headlight sources are opposite each other.
[0191] [0191] The arrangement of the sub-beacon light sources illustrated in the modalities described above are merely examples of the present invention. The present invention is not limited to these examples.
[0192] [0192] In the present invention, as the outer edge of the illumination range of each sub-beam light source, an outer edge of the illumination strip obtained at a time when the brightness of that sub-beam light source changes as result of the vehicle's tilt angle reaching the reference value determined for that sub-headlight source. More specifically, in figure 10, three outer edges W1, W2 and W3 are illustrated. The outer edge W1 is an outer edge of the SH1 illumination strip obtained when the 13La sub-beacon light source is turned on. The outer edge W2 is an outer edge of the SH2 illumination range obtained when the 13Lb sub beam light source is turned on. Thus, the outer edges W1 and W2 are not the outer edge obtained at a time when the 13Lc sub beacon light source is turned on.
[0193] [0193] In the present invention, since the reference value determined for the sub-beacon light source is greater, the outer edge of the illumination range obtained at a time when the brightness of that sub-beacon light source changes as a result the angle of inclination to reach this reference value is located further out (into the curve, in other words, in the direction of the side on which the vehicle is tilted with the inclination attitude) with respect to the vehicle's wide direction. Therefore, when the sub-beacon light sources are sequentially connected together with an increase in the angle of inclination, the outer edge of the illumination band is sequentially shifted to the outside. As a result, lighting can be performed with a range of lighting suitable for each of a wide variety of situations.
[0194] [0194] When the 13Lc sub-beacon light source for which the higher setpoint is determined to be on, the other 13La, and 13Lb sub-beacon light sources are also switched on. Accordingly, the SH3 illumination range of the 13Lc sub-beacon light source for which the highest reference value is determined includes (overlaps) illumination bands from other 13La and 13Lb sub-beacon light sources, although not shown. Therefore, it is possible to compare the outer edges of the illumination bands of the respective sub-beacon light sources obtained at a time when the 13Lc sub-beacon light source is turned on, but nevertheless, even if such a comparison reveals that, as the reference value is higher, the outer edge of the corresponding illumination band is located further out, a result obtained from there is different from the present invention, as apparent from the functions and effects described above of the present invention.
[0195] [0195] On motorcycle 10 according to this modality, the sub-headlight 13 is composed of 13L and 13R sub-headlight units, each of which is provided on each side with respect to the vehicle's wide direction. However, the present invention is not limited to that example. For example, in a possible configuration, 13L and 13R sub-headlight units each provided on each side with respect to the vehicle's wide direction are integrally formed with each other, as a single sub-headlight unit. In this case, the single sub-headlight unit has, on each side of it with respect to the vehicle's wide direction, a plurality of headlight light sources that generate illumination bands on one side with respect to the vehicle's wide direction.
[0196] [0196] This modality describes a case in which each of the 13L and 13R sub-headlight units is a physically integrated unit. However, the present invention is not limited to that example. It may be possible for the 13L sub-headlight unit to be physically divided into 13La to 13Lc sub-headlight sources. In that case, it may be possible for these 13La to 13Lc sub-headlight light sources to be mounted on a single 13L sub-headlight unit which is then installed on motorcycle 10 (vehicle). It may also be possible for each of the 13La to 13Lc sub-headlight light sources to be individually installed on the motorcycle 10. In this case, the 13La to 13Lc sub-headlight light sources, in a state of being installed on the motorcycle 10, constitute a single 13L sub headlight unit.
[0197] [0197] In this embodiment, the sub-headlight units 13L and 13R are separate elements from the main headlight 11. However, the present invention is not limited to this example. It may be acceptable for a sub-headlight unit to be integrated with a main headlight. In that case, the sub headlight unit includes the main headlight.
[0198] [0198] The attitude detection sensor 22 and the vehicle speed sensor 23 correspond to a detection part for detecting variables available for obtaining the motorcycle's tilt angle 10. Although the detection part includes the detection sensor of attitude 22 and the vehicle speed sensor 23 in that embodiment, the present invention is not limited to that example. For example, the detection part may include the attitude detection sensor 22 while not including the vehicle speed sensor 23. Controller 20 corresponds to a control part of the present invention. However, a hardware configuration of the present invention is not limited to that example. The control part determines whether or not the tilt angle of the motorcycle 10 has reached the reference value based on the variables detected by the detection part. At this point, it is not always necessary for the control part to calculate the angle of inclination. No particular limitation is imposed on the details of the processing carried out at the control part. For example, it may be possible for a memory provided in controller 20 serving as a control part to store, in the form of data, a table in which the angular speed (rolling rate) and the speed of the vehicle are associated with a result of if or year the angle of inclination reached a first reference value. In this case, the control part refers to the table based on the vehicle's angular speed and speed, and thus can determine whether or not the tilt angle has reached the first reference value without calculating the tilt angle.
[0199] [0199] In this mode, the angle of inclination is the angle of inclination of the vehicle body to the inside of a curve with respect to the vertical state (vertical direction). However, the present invention is not limited to that example. The angle of inclination can be the angle of inclination of the vehicle body to the inside of a curve with respect to a direction perpendicular to a road surface. As a method and a device for measuring the angle of inclination of the vehicle body towards the inside of a curve with respect to the perpendicular direction of the road surface, conventionally known ones are adopted.
[0200] [0200] This modality describes a case in which the sub-headlight units 13L and 13R are separate elements from the control part (controller 20) and the detection part (the attitude detection sensor 22 and the vehicle speed sensor 23 ). However, the present invention is not limited to that example. The sub-beacon unit can include at least one of the control part, the communication part, and the detection part.
[0201] [0201] In this mode, three sub-headlight light sources are provided on each side of the vehicle with respect to the vehicle's wide direction. In the present invention, however, it will be sufficient that the number of sub-headlight light sources illuminating one side of the vehicle with respect to the vehicle's wide direction is at least two. Additionally, in the present invention, it is sufficient for the vehicle to include a plurality of sub-headlight sources that illuminate the left side with respect to the vehicle's wide direction and a plurality of sub-headlight sources that illuminate the right side with relation to the vehicle's wide direction. It is not always necessary for the sub-headlight light sources to be provided on each side of the vehicle with respect to the vehicle's wide direction. It is preferable that the number of sub-headlight light sources that illuminate one side of the vehicle with respect to the vehicle's wide direction is at least three.
[0202] [0202] In this modality, a sub-beacon light source is made up of a light source, and a reference value is determined for that source of light. However, in the present invention, the number of light sources that constitute a sub-beacon light source is not particularly limited. For example, it may be acceptable for a sub-beacon light source to be made up of a plurality of light sources and a reference value to be set for the plurality of light sources.
[0203] [0203] This modality describes a case in which the reference value used when the angle of inclination increases so that the brightness of the sub-beam light source increases is equal to the reference value used when the angle of inclination decreases so that the brightness of the sub-beam light source decreases. Instead, these reference values may differ from one another. To be specific, it may be possible that a reference value used when the brightness increases and a reference value used when the brightness decreases are configured for a sub-beacon light source. In this case, the reference value used when the brightness increases can be determined higher than the reference value used when the brightness decreases. This can suppress the frequent occurrence of a change in brightness, which may otherwise be caused by merely a slight change in the angle of inclination.
[0204] [0204] This modality describes a case in which the sub-beacon light source is switched on according to the angle of inclination. However, the present invention is not limited to that example. The sub-beacon light source can be configured so that a switching function according to the angle of inclination is manually activated or deactivated. To be specific, it may be possible for the function to be manually placed in a waiting state, and in the waiting state, the sub-beacon light source is switched on according to the angle of inclination. In this case too, the sub-beacon light source is switched on manually, but according to the angle of inclination. On the flasher, on the other hand, the blinking / switching off is switched manually. In addition, at the headlight, the lighting direction is manually switched. In this way, the sub-headlight light source is different from the turn signal and main headlight.
[0205] [0205] The sub-beacon light source can also be configured so that an instruction to turn it on or off is recorded manually. In such a case, when the instruction is not recorded, the brightness of the sub-beacon light source is changed according to the angle of inclination, while when the instruction is recorded, the on or off is performed according to the instruction. For example, when the instruction to turn on is registered, the sub-beacon light source is turned on regardless of the angle of inclination. When the instruction to turn off is registered, the sub-beacon light source is turned off regardless of the angle of inclination. In such a case, the sub-headlight system includes an input part (for example, a switch) to which the instruction to turn the sub-headlight light source on or off is recorded manually. When the instruction is recorded, the control part turns the sub-beacon light source on or off according to the instruction. When the instruction is not recorded, the control part changes the brightness of the sub-beam light source according to the angle of inclination. In this case also, the light source of sub headlight. it is different from the turn signal and the main headlight, since a function to turn on the sub-headlight source according to the angle of inclination is provided.
[0206] [0206] The sub-beacon light source can be configured so that when the angle of inclination is equal to or greater than a minimum reference value, the brightness is changed according to the angle of inclination, while when the tilt angle is less than the minimum reference value (for example, when driving straight ahead), the brightness is changed manually. In this case too, the sub-beacon light source is different from the turn signal and main headlight, since a function to turn on the sub-beacon light source according to the angle of inclination is provided.
[0207] [0207] In the present invention, turning on the sub-headlight source includes turning on in a full light state and turning on in a reduced light state. No limitation is imposed on a method for reducing light from the sub-beam light source. The sub-beacon light source configured by an LED, for example, can be turned on in a reduced light state by means of a dimming control using a pulse width modulation control (PWM control). In this case, a situation in which the sub-beacon light source has reached the predetermined brightness according to the angle of inclination may include a situation in which the task cycle of the sub-beacon light source changes continuously or gradually from zero to a value greater than zero according to the angle of inclination.
[0208] [0208] In the description of this modality, the sub-beacon light source is switched on according to the angle of inclination. Here, the sub-headlight light source is switched on according to the angle of inclination since the sub-headlight light source basically acts as a light to ensure the driver's field of vision of the vehicle. Therefore, in a well-lit situation, for example, during the day, the sub-beacon light source may not necessarily be switched on according to the angle of inclination.
[0209] [0209] This modality describes a case in which a larger reference value (K1 to K3) has a smaller range (K1, K2 ', K3'). However, the present invention is not limited to that example. In this modality, as the reference values from K1 to K3 of the 13La to 13Lc sub-beacon light sources are larger, the outer edges W1, W2 and W3 of the SH1, SH2 and SH3 lighting bands of the 13La sub-beacon light sources the 13Lc having the L1 illumination are located further out with respect to the width Y direction of the motorcycle 10 in a flat view. This allows lighting to be performed with a range of lighting suitable for each of a wide variety of situations, with suppression of increased size.
[0210] [0210] In the present invention, the following configurations are adopted. (A) A sub-headlight unit for use on a vehicle that leans in curves, the sub-headlight unit including a plurality of sub-headlight sources provided on one side with respect to a vehicle-wide direction, the plurality of sub-headlight sources served to illuminate, on the one hand, an area ahead and out of the vehicle with respect to the vehicle's wide direction, where the brightness of the sub-headlight light source changes according to the vehicle's angle of inclination, when the vehicle's tilt angle reaches a reference value that is determined individually for each of the sub-headlight sources, said sub-headlight source has a predetermined brightness, when the vehicle is in a vertical state, the sub-headlight light source having a higher reference value is located on the outside of the sub-headlight light source having a lower reference value with respect to the vehicle's wide direction.
[0211] [0211] When the vehicle passes through a curve, the driver is more likely to see a more distant position within the curve (more outward in relation to the vehicle's wide direction) according to an increase in the vehicle's tilt angle . In a configuration of (A), as the angle of inclination increases, the outermost sub-beam light source is turned on. This makes it easy to guarantee a wide range of illumination in a side area of the vehicle, so that a position that the driver wants to see must be illuminated.
[0212] [0212] (B) The sub headlight unit according to (A), where when the vehicle is in a vertical state, the sub-headlight light source having a higher reference value is located higher up than the sub-headlight light source having a lower reference value.
[0213] [0213] In a configuration of (B), by placing the sub beacon light source having a higher reference value in a higher position, a difference in height between the sub beacon light sources at the moments when they are turned on is reduced. As a result, there is a difference between the strips of light generated on a road surface at the times when the sub-beacon light sources are reduced. Therefore, when observed from the driver, a difference between the shadows, which are produced when an obstacle (such as unevenness in the road surface) exists, is reduced. This can make lighting more suitable for each of a wide variety of shooting situations.
[0214] [0214] (C) The sub headlight unit according to (A), where when the vehicle is in a vertical state, the sub-headlight light source having a higher reference value is located below the sub-headlight light source having a lower reference value.
[0215] [0215] In a configuration (C), the sub-beacon light source having a lower reference value is located at a relatively high position at a time when this sub-beacon light source is turned on. In this way, a relatively wide illumination range is guaranteed as the illumination range of the sub-beam light source having a lower reference value. Additionally, since the sub-beacon light source is switched on at a relatively high position, it is easy to determine a range of illumination on the road surface. It is also easy for the driver to visually recognize an obstacle (such as unevenness in the road surface) and an area behind the obstacle. This allows sub-beacon light sources to provide the most appropriate lighting for a wide variety of shooting situations.
[0216] [0216] (D) The sub headlight unit according to (A), where when the vehicle is in a vertical state, the plurality of sub-headlight sources are arranged in a horizontal direction.
[0217] [0217] In a (D) configuration, a difference in height between the sub-beacon light sources at the moments when they are turned on is reduced. This can more efficiently suppress the occurrence of a situation in which the driver feels discomfort due to a change, which depends on the driving situation, in the illumination range of the sub-headlight light source within the driver's field of vision in a moment when the sub beacon light source is turned on. This allows sub-beacon light sources to provide the most appropriate lighting for a wide variety of shooting situations.
[0218] [0218] Like the modalities according to (A) to (D), the modalities described above with reference to figures 1 to 17. Description of Numerical References 10 motorcycle (vehicle that leans in curves) 11 headlight 11H high beam light source 11L low beam light source 12 handlebars 13 sub lighthouse 13L, 13R sub headlight unit 13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc - sub headlight light source 14L, 14R flasher 15 operation switch 16 front wheel 17 front fork 18 front cover 20 controller 22 attitude detection sensor 23 vehicle speed sensor 80-83 course 90 vehicle 91-93 slitting line 96 position a driver wants to see

权利要求:
Claims (16)
[0001]
Sub-headlight system for use on a vehicle that leans on curves, the sub-headlight system CHARACTERIZED by understanding: a sub-headlight unit (13L, 13R) comprising a plurality of sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) to illuminate, on one side with respect to a vehicle width direction, a area at the front and out of the vehicle with respect to the vehicle's wide direction; a control part (20) which is adapted to change the brightness of the plurality of sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) according to the vehicle's angle of inclination; and a detection part (22, 23) that is adapted to detect a variable available to obtain the vehicle's tilt angle, in which the plurality of sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) are adapted to change the brightness according to the vehicle's angle of inclination, when the vehicle's tilt angle reaches a reference value (K1, K2, K3) that is individually determined for each of the sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc), said source sub headlight (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is adapted to exhibit a predetermined brightness, where when the vehicle's tilt angle reaches the reference value (K1, K2, K3) the control part (20) is adapted in such a way that the sub-headlight light source (13La, 13Lb, 13Lc, 13Ra, Corresponding 13Rb, 13Rc) display a predetermined brightness, so that when the vehicle is tilted to one side with respect to the width direction of the vehicle such that the angle of inclination increases, the brightness of the plurality of sub-headlight sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) that illuminates that one side is increased sequentially from the sub-beacon light source for which a lower reference value is determined as a sub-beacon light source for which a larger reference value is determined, the plurality of sub-beacon light sources being arranged in such a way that the reference value (K1, K2, K3) determined for the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is larger, an outer edge of a range of illumination from the sub-headlight light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) having a predetermined illumination is located further out with respect to the vehicle's wide direction in a view flat, and the sub-beacon light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) being arranged in such a way that as the reference value (K1, K2, K3) defined for the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is larger, a larger angle is formed in a plane view between an optical axis (AL1, AL2, AL3, AR1, AR2, AR3) of the sub-beam light source ( 13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) and a vehicle centerline in a front-to-rear direction.
[0002]
Sub-headlight system, according to claim 1, CHARACTERIZED by the fact that: as the reference value (K1, K2, K3) determined for the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is greater, an outer edge of a light strip of the light source of sub headlight (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) having a predetermined illumination obtained when the vehicle is in a vertical state is located further out in relation to the vehicle's wide direction.
[0003]
Sub-headlight system, according to claim 1 or 2, CHARACTERIZED by the fact that: the plurality of sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) are located on one side of the vehicle with respect to the vehicle's wide direction, as the reference value (K1, K2, K3) determined for the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is greater, an outer edge of a strip of light having a predetermined illumination generated on one side by the so-called sub-lighthouse light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) among the plurality of sub-lighthouse light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) located further out with respect to the vehicle's wide direction.
[0004]
Underlight system, according to any one of claims 1 to 3, CHARACTERIZED by the fact that: as the reference value (K1, K2, K3) determined for the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is greater, a lighting range of the sub-beacon light source (13La , 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) obtained when the vehicle is in a vertical state is located higher up, as the illumination range of the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is located further up, an outer edge of a lighting range having a predetermined illumination generated by said light source from sub headlight (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) among the plurality of sub headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is located further out with respect to the vehicle.
[0005]
Underlight system, according to any one of claims 1 to 4, CHARACTERIZED by the fact that: an optical geometric axis (AL1, AL2, AL3, AR1, AR2, AR3) of the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is fixed; as the reference value (K1, K2, K3) determined for the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is greater, an outer edge of a strip of light having a predetermined generated illumination by said sub-headlight light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) among the plurality of sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) whose optical geometric axes (AL1 , AL2, AL3, AR1, AR2, AR3) are fixed is located further out with respect to the vehicle's wide direction.
[0006]
Underlight system according to any one of claims 1 to 5, CHARACTERIZED by the fact that: as the reference value (K1, K2, K3) determined for the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is greater, a cut line of the sub-beacon light source (13La , 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is tilted at a greater angle of inclination with respect to a horizontal line that is obtained when the vehicle in a vertical state is observed from the front side of it.
[0007]
Underlight system according to any one of claims 1 to 6, CHARACTERIZED by the fact that: when the vehicle's tilt angle reaches a reference value (K1, K2, K3) that is individually configured for each of the sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc), the said source sub-headlight is adapted to be switched on; as the reference value (K1, K2, K3) determined for the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is greater, an outer edge of a strip of light having a predetermined generated illumination by the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) at a time when said sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is turned on, is located further out with respect to the vehicle's wide direction.
[0008]
Underlight system according to any one of claims 1 to 7, CHARACTERIZED by the fact that: when the vehicle's tilt angle reaches a reference value (K1, K2, K3) which is determined individually for each of the sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc), said source sub headlight is adapted to be switched on in a full light state; as the reference value (K1, K2, K3) determined for the sub-beacon light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is greater, an outer edge of a strip of light having a predetermined generated illumination by the sub-headlight light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) at a time when said sub-headlight light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is turned on in the state of full light, it is located further out with respect to the vehicle's wide direction.
[0009]
Underlight system according to any one of claims 1 to 8, CHARACTERIZED by the fact that: the sub-headlight units (13L, 13R) are provided on one side of the vehicle; when the vehicle is in a vertical state, the sub-headlight light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) having a higher reference value (K1, K2, K3) is located on the outside of the sub-headlight having a lower reference value (K1, K2, K3) in relation to the vehicle's wide direction.
[0010]
Underlight system according to claim 9, CHARACTERIZED by the fact that: when the vehicle is in a vertical state, the sub-headlight light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) having a higher reference value (K1, K2, K3) is located higher up than the sub headlight light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) having a lower reference value (K1, K2, K3).
[0011]
Underlight system according to claim 9, CHARACTERIZED by the fact that: when the vehicle is in a vertical state, the sub-headlight light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) having a higher reference value (K1, K2, K3) is located lower than the source sub-headlight (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) having a lower reference value (K1, K2, K3).
[0012]
Underlight system according to any one of claims 9 to 11, CHARACTERIZED by the fact that: the plurality of sub-beacon light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) are arranged close together, when the vehicle is in a vertical state, the positions of the sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) close to each other are partially coincident with respect to a height direction.
[0013]
Underlight system according to claim 9, CHARACTERIZED by the fact that: when the vehicle is in a vertical state, the plurality of sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) is arranged in a horizontal direction.
[0014]
Underlight system, according to any of claims 9 to 13, CHARACTERIZED by the fact that: a front cover (18) included in the vehicle has a curved surface that is convex outwards and extends from a central front part with respect to the width direction of the vehicle in a direction backwards and outwards with respect to the width direction the vehicle; the plurality of sub-headlight light sources (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) are arranged along the curved surface of the front cover (18).
[0015]
Underlight system according to any one of claims 9 to 14, CHARACTERIZED by the fact that: when the vehicle is in a vertical state, the sub-headlight light source (13La, 13Lb, 13Lc, 13Ra, 13Rb, 13Rc) located further out is located above a headlight (11) provided on the vehicle, the headlight (11) being configured to illuminate an area in front of the vehicle.
[0016]
Vehicle that leans in curves, the vehicle CHARACTERIZED by understanding the system as defined in any one of claims 1 to 15.

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同族专利:

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公开号 | 公开日

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CN103318310A|2013-09-25|

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EP2641779A3|2013-12-25|

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EP2641779A2|2013-09-25|

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JP2013224126A|2013-10-31|

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US20130241413A1|2013-09-19|

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US8912722B2|2014-12-16|

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EP2641779B1|2015-06-17|

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JP5615870B2|2014-10-29|

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CN103318310B|2016-12-28|

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BR102013003977A2|2015-06-16|

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法律状态:
2015-06-16| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|

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2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2019-12-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2020-12-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-01-12| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/02/2013, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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JP2012-062377|2012-03-19|

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JP2012062377|2012-03-19|

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JP2012125264A|JP5615870B2|2012-03-19|2012-05-31|Sub headlight unit and sub headlight system for a vehicle turning in a lean position, and a vehicle turning in a lean position|

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JP2012-125264|2012-05-31|

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