• 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:
    A device and a method for generating a haptic feedback on a planar substrate (2) are shown, in which depending on a touch of the substrate (2) haptic feedback in the form of a perceptible change in stiffness (7) in at least one region of the substrate (2) is generated. In order to produce reproducible haptic feedback in the form of a pressure point on the substrate (2), it is proposed that the substrate (2), in particular over at least one of its edge regions, in addition to the contact stress mechanically, in particular electromechanically, is subjected to bending in order to order to change, in particular reduce, the perceptible stiffness (7) of the substrate (2) which can be perceived during the contact.
    公开号:AT513165A1
    申请号:T50287/2012
    申请日:2012-07-19
    公开日:2014-02-15
    发明作者:Johannes Dipl Ing Dr Gerstmayr；Wolfgang Dipl Ing Berger
    申请人:Linz Ct Of Mechatronics Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a method for producing a haptic feedback on a flat substrate, in which a haptic feedback in the form of a perceptible change in stiffness in at least one region of the substrate is produced as a function of contact of the substrate.
    In order to output to a user of a touch-sensitive substrate a haptic feedback known from an actuation of a mechanical button, it is known (WO2012 / 074634A1) to change the rigidity of the substrate in a tactile manner when touched. For this purpose, the substrate has a "Smartgel" whose consistency and thus its compliance can be actively adapted. The disadvantage of such a solution requires a relatively high procedural and constructive effort in order to be able to ensure reproducible haptic feedback in spite of the relatively difficult-to-control parameters of the "smartgear".
    In addition, a touch-sensitive substrate is known from the prior art (DE202009004561U1), in which a haptic feedback in the form of a pressure point can be generated. For this purpose, the substrate is movably mounted on a spring element, which spring element can be deformed via electromechanical actuators. Also, for such an embodiment, a high processing and design effort is required.
    It is therefore an object of the invention, starting from the above-described prior art, to provide a reproducible method for generating a haptic feedback, by the constructional simplicity of a touch-sensitive substrate, a compliance in the manner of a mechanical button can be generated. -2-
    The invention achieves the stated object with regard to the method in that the substrate, in particular over at least one of its edge regions, in addition to the contact stress mechanically, in particular electromechanically, is subjected to bending, so as to change the perceptible on contact stiffness of the substrate, in particular to reduce.
    If the substrate is mechanically stressed in addition to the contact load, an additional force component for a haptic feedback can be made available there. If this additional load is now used as a function of the contact of the substrate in order to change the perceptible stiffness of the substrate, the possibility can very reproducibly open up for the user to convey haptic feedback in the form of an altered compliance of the substrate within the scope of his perceptibility. Namely, the haptic sensory impressions are coherently accompanied by the impulse effect of the mechanical additional load on the substrate, so that the user can be reliably and reliably conveyed to the user at the contact point of the substrate with a haptic feeling known and expected from key-related inputs. The method according to the invention therefore makes it possible in a simple manner to avoid the problems known from a "smartgel" due to the difficulty of controlling the rigidity of a substrate which is difficult to control. In addition, since the complex and thus interference-prone constructions for floating mounting of the substrate, as done in the prior art by coupling with active and passive springs, can be dispensed with, an increased process reliability can be achieved. Constructive simplicity for a stable generation of a reliably perceptible haptic feedback can be made possible if the substrate is electromechanically loaded in addition to the contact stress via at least one of its edge regions, in order to reduce the substrate's perceptible rigidity. According to the invention, therefore, on a touch-sensitive substrate, such as a display on
    constructively simple way to open the possibility to produce common haptic sensory impressions for information transmission.
    If the substrate is stored so that it can not be displaced at least in certain areas, simplified process conditions for applying the contact stress to the substrate may result, in order to bend it.
    A haptic sensation common to mechanical keys can be generated on the substrate by reducing the perceived stiffness of the substrate such that a haptic feedback in the form of a pressure point is formed. According to the invention, the substrate can now abruptly feel more yielding against the first impression of stiffness, which can significantly improve the detectability of haptic feedback. The reproducibility of the process can be significantly increased.
    A comparatively strongly haptic perceivable change in the stiffness of the substrate can be produced when the substrate is biased against the contact load. By relieving the bias, the spring action of the substrate can in fact be used to additionally change the haptic perceptible stiffness of the substrate. Optionally, an additional load of the substrate in the direction of action of the contact load thus increase the sensation of the changed rigidity of the substrate. Even with different haptic perception of the user can thus always be generated such a high haptic feedback that it is safely perceived. In particular, this may be an electromechanical bias due to their ease of handling distinguished.
    If the mechanical contact load is measured in particular in at least one edge region of the substrate, easily manageable and thus feasible measuring methods can be used to detect the contact of the substrate and to determine together with its force component. -4-
    In order to increase the effect of an abruptly changing stiffness, it may be provided that the substrate is bent in addition to the contact load after the predetermined mechanical comparison load has exceeded a predetermined reference value. This can also reduce the risk of unwanted output of haptic feedback due to unintentional contact of the substrate. Among other things, this can increase the reliability of the process.
    In terms of process technology, the position together with the magnitude of the contact stress at this position can be determined if the mechanical contact stress is measured at at least two points in the edge region of the substrate and the position of the mechanical contact stress on the substrate is determined on the basis of these measurement data.
    The contact load and the additional load can be used to additionally load the substrate at different levels of bending at at least two points in the edge region of the substrate in addition to the contact stress such that, depending on the position of the mechanical contact load, at least one region with one opposite to the other bending regions of the Substrate increased bending deflection results. Thus, depending on the position of the contact stress, a deformation limited to a certain area of the substrate can be generated. The necessity that the entire substrate must return to its starting days or must be returned, so can be avoided. Thus, it can also be ensured that other areas of the substrate are available in their initial position for a change in shape and their contact can be haptically confirmed within a short time.
    A self-oscillation of the substrate, which may have a negative effect on a haptic feedback, can be actively reduced in that the mechanical additional load dampens at least one, in particular the first, natural oscillation of the substrate in addition to the change in the perceptible stiffness of the substrate.
    In particular, this force application can be used on two different locations of the substrate by depending on the position of the contact stress, the edge regions are subjected to different levels of mechanical stress, that regardless of the position of the contact load, a substantially equal difference threshold in the haptic feedback is perceptible.
    If at least two opposite edge regions of the substrate are mechanically stressed in order to generate the mechanical additional load, a comparatively high introduction of force into the substrate can be made possible. In addition, a homogenization in a deformation of the substrate can thus be created so that a preferred direction in the perceptible change in stiffness of the substrate can be avoided.
    The invention has also set itself the task of improving a device for generating a haptic feedback on the touch-sensitive substrate of the type described above, which can be reproducibly produced with structurally simple means a perceptible change in stiffness on the substrate.
    The invention achieves the stated object with regard to the device in that the actuator, which is in particular electromechanical and in particular arranged in the edge region of the substrate, is mechanically connected to the substrate and, when actuated, loads the substrate with a force such that it can be perceived via a bend of the substrate Stiffness changed, in particular reduced, in order to produce the haptic feedback.
    If the actuator is mechanically connected to the substrate and when it is actuated, the substrate is loaded with a force in such a way that over a bend of the -6-
    Substrate whose perceptible stiffness changed in order to produce the haptic feedback, a bending of the substrate can be used in a structurally simple way to reproducibly produce a haptic feedback. This construction can be further simplified by using an electromechanical actuator which is arranged in the edge region of the substrate. Known haptic perception experiences can be used if the bending of the substrate reduces its perceptible rigidity. A particularly secure haptic feedback can be generated thereby.
    Structurally simple bending deformations can be generated on the substrate by the device has a housing and between the substrate and the housing, a fixed bearing or a clamping is provided. By this two or trivalent storage of the substrate, namely, any evasive movements of the substrate can be particularly advantageously prevented, so steadfast the perceptible stiffness of the substrate can be changed. The device can therefore produce a particularly reliable haptic feedback.
    In order to increase the degree of decreasing perceptible stiffness in a structurally simple manner, it can be provided that the substrate has a starting position which is prestressed in relation to its rest position and against the contact load. Namely, according to the present invention, by overcoming the bias in connection with an active bending deformation of the substrate by the actuators, an increased deflection on the substrate can be generated. The tactility of the haptic feedback can be significantly increased, which can lead to a particularly reliable device. In general, it is mentioned that this bias voltage can be easily generated by the actuators on the substrate.
    Connects a connected to the sensor arithmetic unit in response to exceeding a comparison value of a memory of the sensor measurement data -7- with the actuator to its control, with the aid of a perceptible change in stiffness haptic impression of a keystroke can be transmitted.
    At least one self-oscillation of the substrate can be damped in a structurally simple manner if a filter, in particular a low-pass filter, is provided in the electrical path for controlling the actuator. In particular, the haptic feedback against the risk of corruption can be protected by thus the first natural vibration of the substrate is attenuated.
    In the figures, for example, the subject invention is illustrated in more detail using an exemplary embodiment. 1 shows several views of the substrate of the device,
    2 is an illustration of the force curve as a function of the deflection of the substrate shown in FIG. 1,
    3 shows a representation of the perceptible stiffness as a function of the deflection of the substrate shown in FIG. 1, and FIG. 4 shows a schematic representation of the control device of the device.
    According to Fig. 1, the plate-shaped substrate 2 is shown in more detail by the device 1 for generating a haptic feedback. The substrate 2 can be designed as a glass pane of a display for displaying information. This substrate 2 are associated with means, which include, among other sensors 12, 13, 14 and 15, so as to be able to detect a touch of the substrate 2 by a user, not shown. In order to be able to give this user now also a haptic feedback, a plurality of electromechanical actuators 3, 4, 5 and 6 are attached to the substrate 2 in its Randbe-rich. For example, these actuators 3, 4, 5 and 6 may be formed by piezo elements. The actuators 3, 4, 5 and 6 are used to electromechanically load the substrate 2 in addition to the contact load - namely, by at least one of these actuators 3, 4, 5 and / or6 the substrate 2 in addition to the contact load electromechanically loaded to bending so as to reduce the perceptible stiffness 7 of the substrate 2 at the touch, as can be seen in FIG. In Figure 3, a deviation can be seen in the course of the stiffness 7 on the bend {deflection) 32 at the point 21 of the contact zone, resulting in a haptic perceptible change in a following a constant course 8 stiffness 7 of the plate to a variable course 9 following stiffness 7 expresses. This is clearly noticeable to a user by haptic, because the substrate rigidity 28-exclusively due to parameters of the substrate 2-does not change. However, in order to perceptibly change its stiffness 7, the substrate 2 with the activated actuators 3, 4, 5 and / or 6 is loaded with an additional force in such a way that its perceptible stiffness 7 is reduced by bending the substrate 2, in order to prevent the latter generate haptic feedback. This can also be recognized in FIG. 2. From a predeterminable comparison value 16, the magnitude of the contact force 10 required to further bend the substrate 2 decreases. This is haptically accessible to a user in the form of a perceptibly reduced rigidity 7 of the substrate 2.
    The jump in the course of the contact force 10 or the rigidity 7 forms a region 11, which is also haptically recognizable as a pressure point. A user is thereby created a known haptic impression of a mechanical key, which the invention can be particularly distinguished from the prior art.
    For this purpose, the touch force 10 of the contact load is measured by the device which generates the haptic feedback on the substrate 2. For this purpose, sensors 12, 13, 14 and 15 are fastened in the edge regions of the substrate 2. These sensors 12, 13, 14 and 15 may be, for example, strain gauges.
    As can be seen in FIG. 4, the sensors 12, 13, 14 and 15 are connected to a computing unit 24 of a control device 25 of the device. The computing unit 24 now compares the size of the sensor measurement data of the sensors 12, 13, 14 and 15 -9- with the comparison value 16, which is stored in a memory 26 of the control device 25. If the size of the sensor measurement data of the sensors 12, 13, 14 and 15 exceeds the comparison value 16, the actuators 3, 4, 5 and 6, of which only one has been shown in FIG. 4 for reasons of clarity, additionally drive the substrate 2 to deflect to the touch load. Thus, the otherwise constant behaving stiffness of the substrate 2 is perceptibly reduced. A haptic feedback is created.
    As can be seen in FIG. 1, the design according to the invention makes it possible to measure, at opposite locations 17, 18 or 19, 20 of the edge region of the substrate 2, the contact load applied to the substrate 2 at the contact zone 21. As a result, in addition to the magnitude of the contact load, the contact zone 21 on the substrate 2 can also be determined.
    This information is used to load the substrate 2 in addition to the contact stress at at least two points 17, 18 and 19, 20 in the edge region of the substrate 2 in addition to bending so different high that depending on the position of the mechanical contact load at least one area 35 results in an over other bending regions 27 of the substrate 2 increased bending deflection. This particular bending of the substrate 2 can be seen, for example, in the end views of the substrate 2 shown in FIG. 1, which are shown laterally for the top view.
    The substrate 2 is biased against the contact stress electromechanically by means of the actuators 3, 4, 5 and / or 6, as can be seen in the dashed line drawn starting position 23 of the substrate 2 of FIG. The substrate 2 therefore has a starting position 23 which is prestressed in relation to its plane rest position. Thus, an additional freedom in the possibility of movement of the substrate 2 is used to produce an increased haptic feedback. -10-
    In order to prevent excitation of the substrate 2 with regard to its natural oscillation or natural oscillations, the mechanical additional load is used to dampen the first natural oscillation of the substrate 2 in addition to the change in the perceptible stiffness 7 of the substrate 2. For this purpose, in the electrical path 29 for controlling the actuators 3, 4, 5 and / or 6, a low-pass filter 30 for damping at least one natural vibration of the substrate 2 is provided, as shown in FIG. In addition, the control device 25 also ADC (analog-to-digital converter) 31 and DAC (digital-to-analog converter) 32 in the electrical paths 19 of the device 1.
    As can be seen from FIG. 1, the substrate 2 is supported so as to be displaceable on the edge. For this purpose, a clamping 34 is provided between the substrate 2 and the housing 33 of the device 1. Conceivable, but not shown, is a fixed bearing for non-displacing clamping 34 of the substrate 2. Advantageously, can be used by this storage known mathematical or mechanical theories for bending a plate, the actuators 3, 4, 5 and / or 6 in this regard to, in order to to produce the haptic feedback according to the invention.
    权利要求:
    Claims (15)
    [1]
    1. A method for generating a haptic feedback on a planar substrate (2), wherein in response to a contact of the substrate (2) haptic feedback in the form of a perceptibly altered stiffness (7) in at least one region of the substrate (2), characterized in that the substrate (2), in particular over at least one of its edge regions, in addition to the contact stress mechanically, in particular electromechanically, is subjected to bending, so as to detect the perceptible on contact stiffness (7) of the substrate ( 2) to change, in particular to reduce.
    [2]
    2. The method according to claim 1, characterized in that the substrate (2) is stored at least partially displaced.
    [3]
    3. The method according to claim 1 or 2, characterized in that the perceptible stiffness (7) of the substrate (2) is reduced such that forms a haptic feedback in the form of a pressure point.
    [4]
    4. The method of claim 1, 2 or 3, characterized in that the substrate (2) against the contact load, in particular electromechanically, is biased.
    [5]
    5. The method according to any one of claims 1 to 4, characterized in that the mechanical contact stress in particular in at least one edge region of the substrate (2) is measured.
    [6]
    6. The method according to claim 5, characterized in that only after exceeding a predetermined comparison value (16) by the measured me- -2- chanical contact stress, the substrate (2) is bent in addition to the contact load.
    [7]
    7. The method according to claim 5 or 6, characterized in that at least two points (17, 18,19, 20) in the edge region of the substrate (2) the mechanical contact load is measured and based on these measurement data, the position of the mechanical contact stress on the substrate ( 2) is determined.
    [8]
    8. The method according to claim 7, characterized in that the substrate (2) in addition to the contact stress in such a manner at least two points (17, 18, 19, 20) in the edge region of the substrate (2) is additionally charged differently high on bending that depending on the position of the mechanical contact stress results in at least one area (35) with a relative to other bending areas (27) of the substrate (2) increased Biegeeaustenkung.
    [9]
    9. The method according to any one of claims 1 to 8, characterized in that the additional mechanical load in addition to the change of the perceived stiffness (7) of the substrate (2) at least one, in particular the first, natural vibration of the substrate (2) attenuates.
    [10]
    10. The method according to any one of claims 1 to 9, characterized in that depending on the position of the contact load, the edge regions are mechanically loaded to different heights that regardless of the position of the contact load, a substantially equal difference threshold in the haptic feedback is perceptible.
    [11]
    11. A device with a flat substrate (2) and with a device for generating a haptic feedback on the substrate (2) in response to which contact, wherein the device at least one sensor (12,13,14 and / or 15) for detecting the touch at the substrate (2) and at least one actuator (3, 4, 5 and / or 6) for generating a haptic feedback in the form of a perceptibly changed stiffness (7) on the substrate (2) in dependence of its An-- tion tion, characterized in that the in particular electromechanical and in particular in the edge region of the substrate (2) arranged actuator (3, 4, 5 and / or 6) with the substrate (2) is mechanically connected and in its control, the substrate (2) with a Stressed force that changes over a bending of the substrate (2) whose perceptible stiffness (7), in particular reduced, so as to produce the haptic feedback.
    [12]
    12. The device according to claim 11, characterized in that the device has a housing (33) and that between the substrate (2) and the housing (33) a fixed bearing or a clamping (34) is provided.
    [13]
    13. The apparatus of claim 11 or 12, characterized in that the substrate (2) has a relation to its rest position and against the contact load biased starting position (23).
    [14]
    14. Device according to claim 11, 12 or 13, characterized in that a computing unit (24) connected to the sensor (12, 13, 14 and / or 15) is dependent on exceeding a comparison value (16) of a memory (26) the sensor measurement data with the actuator (3, 4.5 and / or 6) connects to its control.
    [15]
    15. Device according to one of claims 11 to 14, characterized in that in the electrical path (29) for controlling the actuator (3, 4, 5 and / or 6), a filter, in particular a low-pass filter (30) for damping at least one, in particular the first, natural vibration of the substrate (2) is provided.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE102012000586A1|2013-07-18|Input device with a touch-sensitive input surface
    DE60209776T2|2006-10-19|DISPLAY SYSTEM WITH TACTILE GUIDANCE
    EP2972698B1|2017-08-02|Method for operating a touch-sensitive control system and device having such a control system
    EP3509891B1|2021-05-12|Operating unit for a device, in particular for a vehicle component
    DE102011119746A1|2013-06-06|Actuating device with a manually operated touch-sensitive surface
    AT513165B1|2015-04-15|Method for generating haptic feedback on a flat substrate
    WO2018095777A1|2018-05-31|Operating device for a motor vehicle, and motor vehicle
    DE102016108899A1|2017-11-16|Combined input and output device and method for operating an input and output device
    DE102015100630B4|2016-10-20|Control element with force sensors for touch-zone-resolving touch detection when force is applied to an actuating surface
    DE102018209963A1|2019-12-24|Method for tactile interaction of a user with an electronic device and a computer program product and an electronic device
    DE102017131081B4|2019-10-10|Control system, furniture and method for operating an electrically adjustable piece of furniture
    WO2017084785A1|2017-05-26|Operating device
    WO2020078600A1|2020-04-23|Operating device for a vehicle
    DE102018108061A1|2019-10-10|Device for generating a haptic feedback
    EP3298478B1|2019-07-10|Operating device and method for controlling functional units of a motor vehicle and motor vehicle
    DE102019220095A1|2021-06-24|Haptic operating device in a motor vehicle
    DE102015015073A1|2017-05-24|Operating device for a motor vehicle and method for operating an operating device
    DE102016113715A1|2017-02-02|Resistive touch screen
    DE102019111952A1|2021-01-07|Input device for a motor vehicle for recognizing a pressure input
    DE202018102355U1|2018-06-04|Haptic feedback device
    EP3496124B1|2020-05-20|Method for controlling an operating device for a motor vehicle and operating device
    DE102015215297A1|2017-02-16|Haptikgenerator
    EP2065791A1|2009-06-03|Entry display
    DE112017004621T5|2019-06-06|Tastempfindungs presentation device
    AT516096B1|2016-09-15|Keyboard for a musical instrument
    同族专利:
    公开号 | 公开日
    EP2687949B1|2018-06-13|
    EP2687949A1|2014-01-22|
    AT513165B1|2015-04-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5942733A|1992-06-08|1999-08-24|Synaptics, Inc.|Stylus input capacitive touchpad sensor|
    WO2008033710A2|2006-09-14|2008-03-20|Immersion Corporation|Localized haptic feedback|
    US20090085879A1|2007-09-28|2009-04-02|Motorola, Inc.|Electronic device having rigid input surface with piezoelectric haptics and corresponding method|
    US20090250267A1|2008-04-02|2009-10-08|Immersion Corp.|Method and apparatus for providing multi-point haptic feedback texture systems|
    EP2336742A1|2009-12-03|2011-06-22|Deutsche Telekom AG|Method and system for recording a sensor surface being contacted by an object|
    EP2381340A2|2010-04-23|2011-10-26|Immersion Corporation|Transparent piezoelectric combined touch sensor and haptic actuator|
    CN101641665B|2007-04-12|2013-02-06|诺基亚公司|Keypad|
    EP2202619A1|2008-12-23|2010-06-30|Research In Motion Limited|Portable electronic device including tactile touch-sensitive input device and method of controlling same|
    DE202009004561U1|2009-04-02|2009-06-25|Pi Ceramic Gmbh Keramische Technologien Und Bauelemente|Device for generating a haptic feedback of a keyless input unit|
    EP2755117B1|2010-07-21|2017-05-31|BlackBerry Limited|Portable electronic device having a waterproof keypad|
    US20120133494A1|2010-11-29|2012-05-31|Immersion Corporation|Systems and Methods for Providing Programmable Deformable Surfaces|US20160202760A1|2014-06-06|2016-07-14|Microsoft Technology Licensing Llc|Systems and methods for controlling feedback for multiple haptic zones|
    US10671186B2|2016-06-15|2020-06-02|Microsoft Technology Licensing, Llc|Autonomous haptic stylus|
    法律状态:
    2021-03-15| MM01| Lapse because of not paying annual fees|Effective date: 20200719 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50287/2012A|AT513165B1|2012-07-19|2012-07-19|Method for generating haptic feedback on a flat substrate|ATA50287/2012A| AT513165B1|2012-07-19|2012-07-19|Method for generating haptic feedback on a flat substrate|
    EP13177284.0A| EP2687949B1|2012-07-19|2013-07-19|Device and method for generating haptic feedback on a planar substrate|
    [返回顶部]