• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention is an electric vehicle (100), or in particular an electric motorcycle (100), with an electric motor (3) on at least one wheel (2), the electric motor (3) having an outer rotor (4) and an inner stator (5). . The stator (5) of the electric motor (3) is arranged to act as a shaft for said wheel (2) so that the stator (5) is arranged to carry loads between said wheel (2) and the other structure of the vehicle (100).
    公开号:FI20185594A1
    申请号:FI20185594
    申请日:2018-06-28
    公开日:2019-12-29
    发明作者:Teemu Saukkio
    申请人:Maslog Oy；
    IPC主号:
    专利说明:

    ELECTRIC VEHICLE AND ELECTRIC MOTORCYCLE
    ENGINEERING
    The invention relates generally to electric vehicles. The invention relates in particular to an electric motorcycle.
    BACKGROUND
    There are known electric vehicles having electric motor structures which are fitted to the vehicle wheel so that the rotating motor rotor is outwardly connected and is driven directly to rotate the wheel without intermediate transmission. Known problem with the known solutions is their complexity.
    SUMMARY OF THE INVENTION
    The invention relates to an electric vehicle as defined in independent claim 1 and to an electric motorcycle as defined in independent claim 14.
    It is an object of the invention to provide an electric vehicle and an electric motor wheel which are simpler in construction than the known electric vehicles and electric motorcycles.
    The objects of the invention are achieved by an electric vehicle and an electric motorcycle as disclosed in the corresponding independent claims. Some preferred exemplary shear patterns of the invention are disclosed in the dependent claims.
    According to a first aspect, the invention is an electric vehicle comprising an electric motor mounted on at least one wheel, the electric motor comprising an outboard-mounted rotor and an inboard-mounted stator. The stator of the electric motor is arranged to act as an axle of said wheel so that the stator is adapted to carry the loads between said wheel and the other structure of the electric vehicle.
    Similar electric motors may also be provided on more than one wheel, for example two rear wheels, two front wheels, or all wheels of the vehicle 30. The wheels may have been arranged to be pivotable or non-pivotable.
    20185594 prh 28 -06- 2018
    An electric vehicle, as used herein, may be, for example, an electric car, electric tractor, electric motorcycle, electric scooter, electric motorcycle, electric motorcycle, or tricycle-like electric motor vehicle, or any other vehicle in which an electric motor according to an inventive example 5 can be arranged.
    Said wheel may comprise a rim ring on which the ring is adaptable to the periphery and wherein the rotor is mounted on the rim ring, preferably directly on the rim ring.
    The rotor may be arranged in a stator bearing arrangement such as a roller bearing, a needle bearing 10, a slide bearing, a magnetic bearing or a ball bearing, or bearings.
    The rotor may be mounted on a stator by a roller bearing having roller axes of rotation disposed in a direction opposite to the axis of rotation of said wheel. According to an exemplary embodiment, the axes of rotation of the roller bearing rollers may be arranged at an angle of 45 degrees with respect to the axis of rotation of said wheel.
    The seals may be arranged between the rotor and the stator to form a sealed space on the electromagnetic parts of the rotor and the stator. The seals may be arranged so that a sealed space is formed on the bearing or bearings. Alternatively, the seals may be arranged such that a sealed space is formed on both the electromagnetic parts of the rotor and the stator and on the bearing or bearings.
    The static preferably comprises a winding, and a rotor magnet such as a permanent magnet or an electromagnet. Preferably, the winding and magnet can be arranged from a circumferential to a stator and a rotor, whereby a magnetic force can be provided between them to rotate the rotor relative to the stator when an electrical current is applied to the winding.
    The widths of the static winding and the rotor magnet in the direction of the axis of rotation of the wheel may be substantially smaller than the width of the wheel.
    The electric vehicle may comprise an electric motor control unit and a sensing device arranged to generate a sensor signal, and a control unit arranged to control the operation of the electric motor on the basis of the sensor signal. According to an example of a cyclone, the sensing is arranged in a control element for controlling the rotation speed of the electric motor, in which the output signal is arranged to change in response to a change in the position of the control element.
    20185594 prh 28 -06- 2018
    Steering means may include, but are not limited to, a wheel, a handle, which may be a squeezable handle or a rotatable handle, a touch screen, a joystick, or the like, such as a suitable steering member used in each of the flare examples.
    The electric vehicle may comprise at least two wheels, a frame in which said wheel on which the electric motor is arranged is fixed to the frame by means of a support member. The support member may be arranged so that it can be disassembled into at least two different parts perpendicular to the axis of rotation of the wheel. Preferably, the support member may be secured to the stator.
    In another aspect, the invention is an electric motorcycle which is an electric vehicle according to said first aspect. The electric motorcycle has two wheels, one of which, preferably a rear wheel, is provided with an electric motor comprising an outwardly arranged rotor and an inwardly arranged stator. The stator of the electric motor is arranged to act as an axis of said wheel so that the stator is adapted to carry the loads between said wheel and the other structure of the electric motor wheel.
    The electric motor wheel control member may be a handle rotatable about its longitudinal axis, and the sensor may be arranged on said handle such that the output signal is arranged to change in response to the position of the handle relative to its axis of rotation. The handle may be similar to the throttle handle on known internal combustion engine motorcycles.
    The invention provides advantages over the prior art. The construction of an electric vehicle and an electric motor wheel according to the invention is simpler than known solutions.
    Several other advantages of the invention will be apparent to those skilled in the art upon detailed description of some embodiments of the invention below.
    Certain embodiments of the invention described below should not be interpreted in a restrictive manner, but it will be apparent to one skilled in the art that the invention may be practiced in ways other than those set forth below.
    20185594 prh 28 -06- 2018
    BRIEF DESCRIPTION OF THE FIGURES
    Some embodiments of the invention will now be described in detail with reference to the accompanying drawings.
    Figures 1A and 1B schematically illustrate an electric motor for an electric vehicle according to an exemplary embodiment of the invention.
    Figures 2A-2D schematically illustrate electric vehicles according to some exemplification of the invention.
    Figure 3 schematically illustrates an electric vehicle, in particular an electric motorcycle, according to an exemplary embodiment of the invention.
    Figure 4 schematically shows a part of an electric vehicle or electric motor wheel according to an exemplary embodiment of the invention.
    Figures 5A and 5B schematically show the wheel support part of an electric vehicle or electric motorcycle according to an exemplary embodiment of the invention.
    DETAILED DESCRIPTION OF CERTAIN EXAMPLES
    Figures 1A and 1B schematically show an electric motor 3 of an electric vehicle 100 according to an embodiment of the invention: Figure 1A is a cross-sectional view and Figure 1B is a side view. Said electric motor 3 may comprise an outwardly mounted rotor 4 and an inwardly arranged annular stator 5. The electric motor 3 may be of the brushless or brushed type, alternating current or direct current motor.
    According to an embodiment of the invention, the stator 5 of the electric motor is arranged to act as an axis of the wheel 2 so that the stator 5 is adapted to carry the loads between said wheel 2 and another structure of the electric vehicle 10 such as support member 60 and / or body 50. Thus, the wheel 2 in question does not require a separate hub, but the center part of the wheel 2 may comprise an empty space 18, but may also be provided in a closed manner. The stator 5 can be fastened by means of fastening means 13 to the other structure of the vehicle. The fastening means 13 is a fastening device known per se, which allows the stato and the whole electric motor to be disassembled and re-mounted, such as a bolt. On the other hand, the attachment means 13 may be a weld or seam which must be broken to remove the static 5 and the electric motor.
    20185594 prh 28 -06- 2018
    According to an exemplary embodiment of the invention, the stator 5 can be detachably attached to the vehicle frame 100 with respect to at least five on the other side of the stator wheel 2 in the width direction X.
    In the embodiment shown in Figure 1A, the stator 5 comprises a winding 6 formed by winding wires 5, while the rotor 4 comprises magnets 7, preferably permanent or electromagnets. In the embodiment shown in Figure 1A, the widths of the stator winding 6 and the rotor magnet 7 in the X direction of the wheel rotation axis are substantially smaller than the width of the wheel.
    1A, the wheel 2 comprises a rim 9 and a ring 9 (shown with dashed lines) fitted thereon, and the rotor 4 is attached directly to the rim 8. Attachment methods and means known per se to the rotor 4 may be used.
    In another embodiment, one or more structural layers are provided between the rotor 4 and the rim ring 8. Such a structural layer may be functional, for example it may dampen the vibration between the rotor and the rim, or act as an assisting element for attaching the rotor 4 and the rim 8, or the like.
    The ring 9 which is arranged or can be arranged on the wheel 2 may be a tire known per se: a pneumatic, solid, foamed, etc. Also, a different ring 9 is not necessary, but the rim 8 may form a tread on which the wheel 2 rotates.
    The rotor 4 is preferably arranged to be rotatable with respect to the stator 5, in particular to be rotated about the periphery of the stator 5. The rotor 4 may be provided on the stator 5 by means of bearings, such as roller bearing 10, needle bearing 10, slide bearing 10 10, magnetic bearing 10 or ball bearing 10 or bearings 10.
    The bearing can advantageously be dimensioned such that the stator 5 acts as the axis of the wheel 2, which carries all the load transmitted to the chassis through the wheel 2 of the electric vehicle 100. In other words, the bearing between the rotor 4 and the stator 5 acts as the exclusive wheel bearing of the wheel 2. In the embodiment shown in Figure 3A, seals are arranged between the rotor 4 and the stator 5 to form a sealed space on the electromagnetic parts of the rotor 4 and the stator 5. The seals 12 may be arranged such that a sealed space is formed on the bearing 10 or bearings 10. Alternatively, the seals 12 may be arranged
    20185594 prh 28 -06-2018 such that a sealed space is formed on both the electromagnetic parts of the rotor 4 and the stator 5 and on the bearing 10 or bearings 10.
    In the embodiment shown in Fig. 1A, the rotor 4 is mounted on a stator 5 by a roller bearing 10 whose rotation axes Y of the rollers 11 are arranged differently with respect to the axis of rotation X of the wheel. The advantage is that the bearing is supported both in the X direction of rotation of the wheel 2 and in a direction perpendicular thereto. Now the angle is 45 degrees, but of course it can be another.
    Figures 2A-2D schematically illustrate electric vehicles according to some embodiments of the invention. Figure 2A shows an electric passenger car. According to some embodiments of the Kek10 invention, the electric vehicle may also be a van, bus, truck or truck. Figure 2B shows an electric tractor. According to some embodiments of the invention, the electric vehicle may also be another type of work machine, such as a forklift, a combine or an excavator. Figure 2C shows an electric15 motorcycle according to a preferred embodiment of the invention. Fig. 2D shows an electric wheel according to an exemplary embodiment of the invention, preferably comprising an electric energy storage 40, such as a battery or accumulator.
    Figure 3 schematically illustrates an electric vehicle 100 according to an embodiment of the invention, in particular an electric motorcycle 100. The electric 20 motorcycle may comprise an electric motor 3 fitted to at least one wheel 2 comprising an outboard rotor 4 and an inboard stator 5. axle so that the stator 5 is adapted to carry the loads between said wheel 2 and the other structure of the electric motorcycle 100. Thus, there is no need for a separate hub in this wheel 2.
    According to an exemplary embodiment of the invention, the electric vehicle 100 or electric motor wheel 100 may comprise a control unit 30 of the electric motor 3. In addition, the electric vehicle 100 or electric motor wheel 100 may comprise a sensor 31 configured to provide a sensor signal 32. The control unit 30 30 may be by. The sensor 31 may be fitted to the control element 33 for controlling the speed of rotation of the electric motor 3 such that the sensor signal 32 is arranged to change as the position of the control element 33 changes with respect to its axis of rotation. A change in the position of the control member 33 according to an exemplary embodiment
    20185594 prh 28 -06-2018 is shown by reference numeral 34. The control member 33 may be a wheel, a rod, a touch screen, or, for example, a throttle handle on known motorcycles with internal combustion engines. The sensing 31 may be based on a measurement of the force applied to the control member 33 or may be a position loss.
    According to an embodiment of the invention, the control member 33 of the electric motorcycle 100 is a handle 33 rotatable about its longitudinal axis, and wherein the sensor 31 is mounted on said handle 33, wherein the output signal 32 is arranged to change in response to the position 33 of the handle 33 with respect to
    According to an embodiment of the invention, the electric vehicle or electric motor wheel may be un sensored.
    According to several embodiments of the invention, the control unit 30 of the electric motor 3 is electrically connected to the electric motor 3 for controlling the operation of the electric motor 3.
    The electric vehicle 100 or electric motorcycle 100 may comprise an electric energy storage 40, such as a battery or accumulator.
    The electric motor 3 control unit 30 of the electric vehicle 100 or the electric motorcycle 100 may comprise a calculating unit such as a microcontroller or a processor. Further, the control unit 30 may comprise a memory for storing program code which may be executed by the computing unit. According to several embodiments of the invention, the control unit 30 comprises a frequency converter or inverter to modify the electric power supplied to the electric motor 3. Electric power can advantageously be supplied from the electrical energy storage 40. In addition, sensors, such as speed or position sensors, and, optionally, sensors for measuring temperature and other electric motor parameters, may be provided on the electric motor 3. The control unit 30 is preferably arranged to measure the current supplied to the electric motor 3 and the voltage applied to the poles of the motor 3. Further, the control unit 3 may be arranged to measure the current and / or voltage and / or power of the electrical energy storage 40.
    The electric wheel 2 of the vehicle 100 or the electric motorcycle 100 may be attached to the body 50 of the vehicle 100 or the electric motorcycle 100 by means of a support member 60. The support member 60 may comprise, inter alia, a suspension 65 and / or a shock absorber 65.
    20185594 prh 28 -06- 2018
    The stator 5 may be attached to the other structure of the electric vehicle 100 or the electric motorcycle 100 on one side (as shown in Figure 1A), on both sides (as shown in Figure 4, 5A and 5B), or in the direction of the void 18 . Further, the stator 5 may be fixed throughout its entire length or its inner circumference, or alternatively only partially over its length or its inner circumference. In other words, the fastening means 13 may be located around the stator 5 or only on a specific part or sector thereof.
    Fig. 4 schematically shows a part of an electric vehicle 100 or an electric motorcycle 100 according to an embodiment of the invention. Fig. 4 shows a support part 60 for mounting wheel 12 to frame 50. As can be seen from Fig. 2, support part 60 can be mounted on both sides of 2 widthwise. According to some embodiments of the invention, the support member 60 may be a single-piece 15-piece Z, or alternatively it may be made of several parts, such as two parts, whereby it may be opened or disassembled to facilitate removal of the wheel 2. Figure 2 optionally shows a broken line illustrating the point at which the two-piece support member 60 can be opened or disassembled. These parts may be fixed or fastened to each other by means of fastening, such as bolts 20 and, if necessary, nuts. The support member 60 may be made single piece / piece by welding two or more parts together.
    In another exemplification of strain, the stator 5 is mounted on a wheel member 60 of an electric vehicle 100 or an electric motorcycle 100, which may be spring-loaded and / or shock-absorbent with respect to the other body 50 of the electric vehicle 100 or electric motorcycle 100.
    Figures 5A and 5B schematically illustrate a wheel support member 60 of an electric vehicle 100 or electric motorcycle 100 according to an embodiment of the invention. Figures 5A and 5B show a support member 60 made of at least two removable parts according to one embodiment. a shock absorber 65, by means of which the support member 60 can additionally or alternatively be mounted to the body 50 of the electric motorcycle 100.
    The figures and the description related thereto are intended only to illustrate the idea of the invention. It will be apparent to one skilled in the art that the invention is not limited to the embodiments described above, in which the invention is illustrated by some examples, but many modifications and various embodiments of the invention are possible within the inventive concept defined in the claims below.
    权利要求:
    Claims (14)
    [1]
    An electric vehicle (100) comprising an electric motor (3) mounted on at least one of the wheels (2), the electric motor (3) comprising an outwardly mounted rotor (4) and an inwardly mounted stato (5), characterized in that:
    The stator (5) of the electric motor (3) is arranged to act as an axis of said wheel (2) so that the stator (5) is adapted to carry the loads between said wheel (2) and the other structure of the vehicle (100).
    [2]
    The electric vehicle (100) according to claim 1, wherein said wheel (2) comprises a rim ring (8), the outer ring of which is fitted with a ring (9).
    10, and wherein the rotor (4) is mounted on the rim (8).
    [3]
    The electric vehicle (100) according to claim 1 or 2, wherein the rotor (4) is arranged in a bearing position on the stator (5).
    [4]
    The electric vehicle (100) according to claim 3, wherein the rotor (4) is mounted on a stator (5) with a roller bearing (10) whose wheels (11)
    The three axes (Y) are arranged differently with respect to the axis (X) of rotation of said wheel (2).
    [5]
    The electric vehicle (100) according to claim 4, wherein the roller shafts (Y) of the roller bearing rollers (10) are arranged at an angle of 45 degrees with respect to the axis of rotation (X) of said wheel (2).
    20
    [6]
    The electric vehicle (100) according to any one of the preceding claims, wherein seals (12) are arranged between the rotor (4) and the stator (5) to form a sealed space for the electromagnetic parts of the rotor (4) and the stator (5).
    [7]
    The electric drive guide (100) according to any one of the preceding claims, wherein the stator (5) comprises a winding and a rotor (4) a magnet.
    [8]
    The electric vehicle (100) according to claim 7, wherein the widths of the magnet of the static winding and the rotor (4) in the direction of the axis of rotation (X) of the wheel (2) are substantially smaller than the width of the wheel (2).
    [9]
    The electric driving instruction (100) according to any one of the preceding claims, comprising a control unit (30) for the electric motor (3) and a sensor (31), the sensor (31) being arranged to provide an output signal (32), and
    20185594 prh 28 -06-2018 the control unit (30) is arranged to control the operation of the electric motor (3) based on the sensor signal (32).
    [10]
    The electric vehicle (100) of claim 9, wherein the sensor (31) is adapted to control the speed of rotation of the electric motor (3).
    5, wherein the sensor signal (32) is arranged to change as the position of the control member (33) changes.
    [11]
    An electric vehicle (100) according to any one of the preceding claims, comprising at least two wheels (2), a frame (50), wherein said wheel (2) on which the electric motor (3) is arranged is fixed to the frame.
    10 (50) by a support member (60), and each support member (60) is secured to the stator (5).
    [12]
    The electric vehicle (100) of claim 11, wherein the support member (60) is arranged to be disassembled in at least two different portions perpendicular to the axis of rotation (X) of the wheel (2).
    [13]
    The electric drive according to any one of the preceding claims.
    15 Advice (100), which is an electric car, electric tractor, electric motorcycle, electric scooter, electric moped, electric motorcycle, or a three-wheel electric vehicle resembling a motorcycle.
    [14]
    An electric motorcycle (100), which is an electric vehicle (100) according to any one of claims 1 to 12.
    The electric motorcycle (100) of claim 14, wherein the control member (33) is a handle (33) pivotable about its longitudinal axis, and wherein the sensor (31) is disposed on said handle (33), wherein the sensor signal (32) is 33) a change of position with respect to its axis of rotation.
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2020002774A1|2020-01-02|
    EP3814160A1|2021-05-05|
    US20210260987A1|2021-08-26|
    FI128914B|2021-03-15|
    JP2021532021A|2021-11-25|
    WO2020002774A8|2020-03-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1389164B1|2001-05-24|2010-03-10|Bryan P. Prucher|Motor in wheel electric drive system|
    JP4109852B2|2001-10-19|2008-07-02|ヤマハ発動機株式会社|Throttle opening detection device for electric motorcycle|
    DE10218140A1|2002-04-23|2003-11-13|Mbn Maschb Betr E Neugersdorf|Electric drive system for a vehicle|
    US20130241366A1|2012-02-27|2013-09-19|Daniel Kee Young Kim|High torque/high efficiency winding motor|DE102020120756A1|2020-08-06|2022-02-10|Bayerische Motoren Werke Aktiengesellschaft|Wheel drive and motor vehicle|
    法律状态:
    2019-10-03| PC| Transfer of assignment of patent|Owner name: RMK VEHICLE CORPORATION OY |
    2021-03-15| FG| Patent granted|Ref document number: 128914 Country of ref document: FI Kind code of ref document: B |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20185594A|FI128914B|2018-06-28|2018-06-28|Electric vehicle and electric motorcycle|FI20185594A| FI128914B|2018-06-28|2018-06-28|Electric vehicle and electric motorcycle|
    FIU20194036U| FI12397U1|2018-03-09|2019-03-11|Electric vehicle being an electric motorcycle, an electric scooter or an electric bicycle|
    PCT/FI2019/050503| WO2020002774A1|2018-06-28|2019-06-27|Electric vehicle and electric motorcycle|
    US17/256,274| US20210260987A1|2018-06-28|2019-06-27|Electric vehicle and electric motorcycle|
    EP19755955.2A| EP3814160A1|2018-06-28|2019-06-27|Electric vehicle and electric motorcycle|
    JP2021522148A| JP2021532021A|2018-06-28|2019-06-27|Electric vehicle and electric two-wheeled vehicle|
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