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WO2015049020A1 - Écran tactile de véhicule automobile avec rétroaction haptique - Google Patents

Écran tactile de véhicule automobile avec rétroaction haptique Download PDF

Info

Publication number
WO2015049020A1
WO2015049020A1 PCT/EP2014/002145 EP2014002145W WO2015049020A1 WO 2015049020 A1 WO2015049020 A1 WO 2015049020A1 EP 2014002145 W EP2014002145 W EP 2014002145W WO 2015049020 A1 WO2015049020 A1 WO 2015049020A1
Authority
WO
WIPO (PCT)
Prior art keywords
disc
operating device
actuator
deflection
excitation signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2014/002145
Other languages
German (de)
English (en)
Inventor
Ulrich Müller
Manuel Kühner
Manfred Mittermeier
Michael Wachinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audi AG
Original Assignee
Audi AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Audi AG filed Critical Audi AG
Publication of WO2015049020A1 publication Critical patent/WO2015049020A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/25—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using haptic output
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/143—Touch sensitive instrument input devices
    • B60K2360/1446—Touch switches

Definitions

  • the invention relates to an operating device for a motor vehicle.
  • the operating device has a touchpad or touchscreen or generally a disk with a sensor matrix comprising a plurality of sensors for sensing a touch and / or a pressure force.
  • a user has to press the pane with a finger.
  • an actuator moves the disk so that the disk carries out a deflection movement to be felt with the finger from an initial position, as a result of which a haptic feedback for the user is generated on the disk.
  • An operating device of the type described is known for example from US 2005/0225539 A1.
  • the disc of a touch screen is resiliently mounted and is shaken to generate the haptic feedback by means of a motor. The disc thus performs a periodic, damped vibration. In connection with a deflection of the disc in the disc plane a unique jerky deflection movement is described.
  • DE 103 15 841 A1 likewise discloses an operating device with haptic feedback.
  • the push-buttons for pressing and for generating the haptic feedback are spatially separated from a display device.
  • a touch screen is known, which is moved to generate a haptic feedback in the disk plane of the touch screen.
  • a shaking movement is provided with several periods of vibration.
  • a haptic feedback is not provided as a periodic vibration in the push-buttons also usually present in motor vehicles, but the passive, translational control element is pressed in an operating direction and the resulting triggered by the push-button controlled function is often the user abrupt drop (click), which is caused by a path-dependent actuation force (force-displacement curve).
  • the drop in force can be coupled with an impulsive sound, ie a clicking sound.
  • the technical realization of the force-displacement curve is usually done by Gummischaltmatten, snap discs, which are also referred to as crackpot frog, or microswitch.
  • the object of the invention is to ensure the homogeneity of the operating haptics in a motor vehicle.
  • an operating device for a motor vehicle has a touch-sensitive disk to be touched by a user with a finger for an operating action, which has a sensor matrix with a plurality of sensors, as is known from a touchscreen and a touchpad.
  • a control device is provided which receives the sensor signals of the sensor matrix and detects a touch of the disc and / or a release of the disc on the basis of the sensor signals. The latter is the case when the user lifts his finger off the disc again, so the pressure subsides.
  • the control device Upon detection of the touch and / or release, the control device in each case sends out an excitation signal which serves to activate an actuator.
  • This actuator is designed to move and / or deform the disk as a function of the excitation signal, so that the disk carries out a deflection movement to be felt with the finger from a starting position.
  • the starting position may be different from the rest position of the disk assumed at un actuated state, so that the user should first press the disk with a predetermined actuating force and thus deform or deflect it before the haptic feedback is generated.
  • the excitation signal can also be generated if a change of state of the operating device is to be signaled as haptic feedback, ie, for example, whenever a new menu item has been reached when scrolling through an operating menu.
  • the actuator is now designed to perform no multiple periods comprehensive vibration, but only to produce a unidirectional force acting on the disc and thereby act on the disc with a predetermined pulse energy.
  • the actuator ruptures or thus abuts only the disc with a single jerk.
  • the disk itself could then vibrate and, corresponding to a mass-spring system, execute a vibration that spans several periods.
  • the deflection movement is controlled by the control device by means of the excitation signal.
  • the deflection signal is in this case designed in such a way that a predominant part of the pulse energy is transmitted to the disc and / or the finger in a first half-wave of the deflection movement.
  • the invention has the advantage that the user feels the snaps or tapping or clicking also known from push buttons when pressing the disc.
  • the operating device according to the invention can be provided with very simple means, since only one actuator is necessary, which must be able to generate a force only in one direction.
  • the actuator can transmit the force with a force direction vector to the disk, which lies in the disk plane or is oriented transversely or perpendicular to the disk plane.
  • the disk can be provided as part of a touchscreen or a touchpad.
  • the actuator exerts its force in one direction only, it is provided according to a development of the invention that the disc and / or a holding device of the disc is designed to generate a restoring force in the direction of the rest position. It is particularly preferred that even the restoring force is formed by a mechanical tension of the disc, so their elastic deformation. Then no additional mechanical components are needed.
  • the maximum deflection of the disc from the starting position is less than 0.7 mm, in particular less than 0.5 mm.
  • the material of the disc is protected and only one actuator with relatively low drive power is required.
  • the excitation signal for controlling the force generated by the actuator is preferably non-periodic. As a result, vibrations are avoided in the disc.
  • the excitation signal is preferably embodied as an impulse, that is to say it has a chronological progression which starts from zero starting in an amplitude direction, in order then to fall back to the zero line and to remain there.
  • the rise is preferably configured as a jump, that is, as a rising edge, through which the amplitude increases in a period of, for example, less than one or two or five milliseconds from the zero line to the maximum amplitude.
  • the excitation signal has a sloping ramp and / or a multi-stage sloping course. This results in the advantage that the disc is braked after the maximum deflection when swinging back into the starting position, so that overshoots are damped.
  • the described course of the excitation signal can be designed as an analog signal, that is to say as a continuous signal.
  • the excitation signal is formed by a pulse width modulation, that is, the course described above represents an average value of the output signal generated by pulse width modulation.
  • a pulse width modulation has the advantage that the excitation signal without digital-to-analog converter can be generated by simply switching between two switching states.
  • Actuators with a PT1 behavior are preferably provided, ie actuators which, based on the output quantity force, at least approximately function according to a PT1 element, ie have a proportional transmission behavior with a first-order delay.
  • actuators with a PT1 behavior are preferably provided, ie actuators which, based on the output quantity force, at least approximately function according to a PT1 element, ie have a proportional transmission behavior with a first-order delay.
  • an actuator with PT1 behavior can also reliably generate step-like excitation.
  • An example of such an actuator is, apart from the known non-linearities of this actuator class, an electrodynamic actuator with the input voltage and the output force.
  • actuators are electroactive polymers. These have the advantage that the falling edge of the activation signal can be implemented as a sliding and thus particularly good damping movement.
  • An actuator based on a piezoelectric crystal is also suitable for generating mechanical excitation pulses.
  • the invention also includes a motor vehicle, which includes an embodiment of the operating device according to the invention and at least one.
  • mechanical actuator such as a push button or a rocker switch has.
  • the actuator is characterized from that it has a snap mechanism, which has the sudden drop in the force-displacement curve described above, that produces a noticeable click when pressing.
  • the operating device with its disk touchscreen or touchpad
  • the actuator is designed to imitate by means of the actuator a haptic impression caused by the snap mechanism when the actuating element (pushbutton) is triggered by means of the disk.
  • the user feels when pressing the disc, so for example, a touchpad, the same click effect, as when pressing the actuator, such as, for example, the push button.
  • the actuator such as, for example, the push button.
  • the motor vehicle according to the invention is preferably designed as a motor vehicle, in particular as a passenger car.
  • the invention is also realized by a method in which upon detection of contact of the disc described by means of an actuator, a deflection force is generated only in a predetermined direction and thereby dje disc is subjected to a unidirectional deflection pulse.
  • the sensor matrix of the disk can be touch sensors and / or pressure sensors or else proximity sensors, by means of which, for example, a change in an electrical capacitance by making the finger approach can be measured.
  • FIG. 1 is a schematic representation of an embodiment of the motor vehicle according to the invention
  • 2 shows a diagram with a schematic progression of a deflection movement of a contact-sensitive pane of the motor vehicle of FIG. 1, FIG.
  • Fig. 6 are each a diagram with a schematic course of a
  • Fig. 1 of a motor vehicle 10 of the vehicle interior 12 is shown. Shown is a dashboard 14, in which a touchpad 16 and a push button 18 can be installed.
  • a deflection direction X is defined for better orientation.
  • the pushbutton 18 represents an actuating element, which yields when pressed on a touch surface 20, for example, with the finger and moves in the direction of deflection X in the dashboard 14. In this case acts on the pushing finger a restoring force R 'to the rest position shown in Fig. 1 of the push button 18 back.
  • the course of the restoring force R 'as a function of the deflection X is shown in FIG. 1 below the pushbutton 8.
  • the push-button 18 may have a snap-action disc 22, by means of which the restoring force R 'initially increases with increasing deflection X, in order to abruptly drop off at a snap point 24, so that the user feels a click with his finger.
  • the touchpad 16 represents an embodiment of the operating device according to the invention.
  • the touchpad 16 may have a disk 26 with a sensor matrix 28.
  • the sensor matrix 28 can in a known manner a Have a plurality of individual sensors 30, of which in Fig. 1 for the sake of clarity, only a few are provided with a reference numeral.
  • the sensors 30 of the sensor matrix 28 are coupled to a control device 32, which may be, for example, a microcontroller or a control device.
  • the control device 32 recognizes from the sensor signals S of the sensors 30 when a user presses with his finger 34 on the disk 26. On the basis of the sensor signals S can be detected in particular, where on the disk 26, the point of contact of the finger 34 with the disk 26.
  • the touchpad 16 can also be designed as a touchscreen.
  • the touchpad 16 is thereby designed according to the invention as an active, translational, ie to be pressed, control.
  • the user feels at the fingertip of the finger 34 in spite of the closed surface of the disc 26 when pressing the disc 26 a click, as he feels it at the push button 18.
  • a restoring force R the course of which is also shown in Fig. 1 as a function of the deflection X.
  • the force-displacement curve 38 shows that likewise the restoring force R increases with increasing deflection X, in order then to abruptly drop at a snap-action point 40.
  • the actuator 42 is controlled by the control device 32 by means of a deflection signal U, which may be a voltage signal, for example.
  • the control device 32 recognizes on the basis of the sensor signals S that the finger 34 presses the disk 26 and generates the deflection signal U when the snap point 40 is reached.
  • the actuator 42 pulls on the disk 26 in the example shown so that it continues in the direction of deflection X. emotional.
  • An amplitude of the deflection signal U may correspond to an amplitude of a deflection of the disk 26 caused by the actuator 42. It may also be a pressure on the disc 26 are exerted by the actuator 42.
  • a lateral movement for pressing movement 36 can be generated by an actuator 42 'acting in a disk plane of the disk 26.
  • the activation of the actuator 42 by means of the deflection signal U effected active deflection of the disc 26 at the snap point 40 is shown in Fig. 2 again in more detail. Shown is the course of the deflection X over the time t.
  • the inertia of the disc 26 and the actuator components of the actuator 42 results in a curved course of the deflection movement 44.
  • the actuator 42 deflects the disc 26 with a single pulse, that is, the deflection force F acts unidirectionally for a predetermined period of time 46.
  • a maximum additional Deflection 52, which is caused by the actuator 42 after reaching the snap point 40 may be in a range up to 7 mm, preferably up to 5 mm.
  • the disc 26 oscillates automatically by their mechanical deformation back to the starting position. In this case, however, it is ensured that the predominant part of the pulse energy transmitted by the actuator to the disk 26 is concentrated in a first half-wave 46 and transmitted to the finger 34. A swinging 50 of the disc 26 is strongly attenuated in the touchpad 6.
  • the deflection signal U is generated by the control device 32 in a manner adapted to the disc 26 and its mechanical suspension. Possible signal curves of the triggering signal U are explained in FIGS. 3 to 6.
  • the rising edge 54 is formed according to a step function. This will create the click effect.
  • the sloping region 56 has two steps 58.
  • FIG. 4 shows an excitation signal U with a total of three stages 58 as a multi-stage profile. This avoids that the user with the finger 34 notes the gradual return as further clicks.
  • an excitation signal U is shown with a sloping ramp 60 through which a particularly smooth and jerk-free provision of the disc 26 is reached in the starting position.
  • FIG. 6 shows how such a ramp can be achieved by means of a pulse-width-modulated excitation signal 62.
  • an effective value 64 of the pulse-width-modulated signal 62 is also shown.
  • the haptic feedback provided at the touchpad 16 can be used to inform the user quite generally of a function triggering or to give him feedback about the state of the operated system.
  • An example of the second aspect would be a haptic feedback on the selection or marking of a new item in a list, for example, when the user strokes or wipes his finger 16 over the touchpad 16.
  • the movement of the surface 20 is parallel or normal to the actuation direction.
  • a comparable haptic impression can also be generated by a lateral movement of the surface of the pane 26 relative to the actuation direction 36, without the user consciously perceiving this. This is possible as long as the deflection amplitude is small enough.
  • Active controls are activated by actuators.
  • the actuators are energy converters that convert, for example, electrical, pneumatic or hydraulic energy into mechanical energy, in particular force and movement. Aside from an actuator, active control elements can generally be described as an approximate mechanical mass-damper-spring system.
  • the haptic feedback is generated by a brief, impulsive stimulation of the surface in contact with the user.
  • the excitation does not occur periodically, which distinguishes it from the haptic feedback systems known from the prior art.
  • the excitation takes place, as already described, in such a way that the deflection of the disc preferably has the time profile shown in FIG. Key features of this deflection are that the course has a strongly damped characteristic.
  • the movement consists of a few periods of oscillation, ideally one or a half period.
  • the movement is preferably completed after 10 to 30 milliseconds.
  • the maximum deflection is preferably less than 0.5 mm.
  • FIGS. 3 to 6 show the basic profile of the triggering signal, that is to say the control voltage, for achieving the haptic impression described in FIG. 2, wherein the voltage can also be pulse width modulated, as illustrated in FIG is.
  • the actuator 42 as a particular advantage, must only be able to generate a force in one direction only.
  • the invention thus advantageously makes it possible to imitate a haptic impression of a pushbutton or another actuating element generating a clicking effect, even when an active control element, such as a touchpad or touchscreen, is actuated.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • User Interface Of Digital Computer (AREA)
  • Position Input By Displaying (AREA)
  • Mechanical Control Devices (AREA)

Abstract

L'invention concerne un dispositif de commande (16) pour un véhicule automobile (10). Ledit dispositif de commande comprend une vitre (26), qui peut être touchée par un doigt (34) d'un utilisateur et qui comporte un réseau de capteurs (28), ainsi qu'un dispositif de commande (32), qui est configuré pour émettre en fonction de signaux de capteurs (S) du réseau de capteurs (28) un signal d'excitation (U), et un actionneur (42, 42'), qui est configuré pour déplacer la vitre (26) en fonction du signal d'excitation (U) de sorte que la vitre (26) exécute un mouvement d'excursion (44) qui sera ressenti avec le doigt (34). L'actionneur (42, 42') est configuré pour générer uniquement une force (F) agissant de manière unidirectionnelle et pour appliquer sur la vitre (26) une énergie impulsionnelle prédéfinie. Le dispositif de commande (32) est configuré pour commander le mouvement d'excursion (44) au moyen du signal d'excitation (U) et pour transmettre de cette façon sur le doigt (34) une partie majeure de l'énergie impulsionnelle dans une première demi-onde (48) du mouvement d'excursion (44).
PCT/EP2014/002145 2013-10-02 2014-08-05 Écran tactile de véhicule automobile avec rétroaction haptique Ceased WO2015049020A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013016491.5A DE102013016491B4 (de) 2013-10-02 2013-10-02 Kraftfahrzeug-Bedienvorrichtung mit haptischem Feedback, Kraftfahrzeug und Verfahren zum Betreiben einer solchen Bedienvorrichtung
DE102013016491.5 2013-10-02

Publications (1)

Publication Number Publication Date
WO2015049020A1 true WO2015049020A1 (fr) 2015-04-09

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PCT/EP2014/002145 Ceased WO2015049020A1 (fr) 2013-10-02 2014-08-05 Écran tactile de véhicule automobile avec rétroaction haptique

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DE (1) DE102013016491B4 (fr)
WO (1) WO2015049020A1 (fr)

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WO2017032688A1 (fr) * 2015-08-27 2017-03-02 Volkswagen Ag Dispositif et procédé de génération d'un couple haptique sur un actionneur
CN108583471A (zh) * 2018-07-02 2018-09-28 宁波爱路波汽车配件有限公司 汽车车窗制动装置
CN108602435A (zh) * 2016-01-28 2018-09-28 贝尔-赫拉恒温控制有限公司 用于车辆的操作单元
CN110709274A (zh) * 2017-08-01 2020-01-17 宝马股份公司 用于车辆的操纵元件
CN110764619A (zh) * 2019-10-24 2020-02-07 吉林大学 基于特征相似度的触觉再现轮廓渲染真实感定量评估方法

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DE102015008537A1 (de) 2015-07-02 2017-01-05 Audi Ag Kraftfahrzeug-Bedienvorrichtung mit haptischer Rückmeldung
DE102017107366A1 (de) 2016-07-18 2018-01-18 Preh Gmbh Bedienvorrichtung mit aktiver haptischer Feedbackerzeugung und Schwingungsdämpfer
DE102016224838A1 (de) * 2016-12-13 2018-06-14 Zf Friedrichshafen Ag Bedienvorrichtung zum Auswählen zumindest einer Getriebestufe eines Fahrzeugs, Fahrzeug mit einer Bedienvorrichtung und Verfahren zum Betreiben einer Bedienvorrichtung
DE102017104541A1 (de) * 2017-03-03 2018-09-27 Preh Gmbh Eingabeverfahren mit verbessertem haptischem Feedback und zugehörige Eingabevorrichtung
DE102017222840A1 (de) 2017-12-15 2019-06-19 Audi Ag Bedienvorrichtung für ein Kraftfahrzeug sowie Kraftfahrzeug

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
WO2017032688A1 (fr) * 2015-08-27 2017-03-02 Volkswagen Ag Dispositif et procédé de génération d'un couple haptique sur un actionneur
CN108136910A (zh) * 2015-08-27 2018-06-08 大众汽车有限公司 用于在促动器处产生触觉力矩的装置和方法
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CN108136910B (zh) * 2015-08-27 2019-05-31 大众汽车有限公司 用于在促动器处产生触觉力矩的装置和方法
CN108602435A (zh) * 2016-01-28 2018-09-28 贝尔-赫拉恒温控制有限公司 用于车辆的操作单元
CN110709274A (zh) * 2017-08-01 2020-01-17 宝马股份公司 用于车辆的操纵元件
CN110709274B (zh) * 2017-08-01 2022-10-14 宝马股份公司 用于车辆的操纵元件以及用于操纵元件的方法
CN108583471A (zh) * 2018-07-02 2018-09-28 宁波爱路波汽车配件有限公司 汽车车窗制动装置
CN110764619A (zh) * 2019-10-24 2020-02-07 吉林大学 基于特征相似度的触觉再现轮廓渲染真实感定量评估方法
CN110764619B (zh) * 2019-10-24 2021-08-27 吉林大学 基于特征相似度的触觉再现轮廓渲染真实感定量评估方法

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