EP3394713A1 - Control interface for automotive vehicle - Google Patents
Control interface for automotive vehicleInfo
- Publication number
- EP3394713A1 EP3394713A1 EP16825394.6A EP16825394A EP3394713A1 EP 3394713 A1 EP3394713 A1 EP 3394713A1 EP 16825394 A EP16825394 A EP 16825394A EP 3394713 A1 EP3394713 A1 EP 3394713A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control interface
- capacitive touch
- interface according
- distance
- capacitive
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
Definitions
- the present invention relates to a control interface for a motor vehicle comprising in particular a capacitive touch screen.
- multi-function touchscreen control interfaces are increasingly used to control electrical or electronic systems, such as an air conditioning system, an audio system or a navigation system.
- Such interfaces are generally associated with a display screen and allow navigation in drop-down menus.
- a support of the user is for example associated with the selection of a command.
- haptic feedback control modules are already known comprising actuators, such as electromagnetic actuators, connected to the interface module for transmitting a vibration movement, so that the user perceives a haptic feedback informing him that his order has been taken into account.
- An object of the present invention is to provide an improved capacitive touch panel control interface, less complex, and less expensive.
- the present invention relates to a control interface for a motor vehicle comprising:
- a capacitive touch-sensitive panel comprising at least one capacitive location sensor defining a detection surface and configured to locate a user's finger on this detection surface of the touch-sensitive panel capacitive, and
- a display module comprising a display screen
- a haptic feedback unit comprising at least one vibratory actuator mechanically connected directly or indirectly to the capacitive touch panel and in that the capacitive touch panel is fixed to the display screen by via a layer of transparent elastic optical adhesive allowing relative movement between said capacitive touch panel and the display screen when a user presses the capacitive touch screen.
- the control interface may have one or more of the following features taken alone or in combination:
- control interface includes a stylus frame attached to the capacitive touch pad and said at least one vibratory actuator is attached beneath the underside of the stylistic frame so as to transmit a haptic feedback to the sensing surface of the stylus. the capacitive touchscreen via the style frame.
- the transparent optical adhesive layer has a thickness of between 0.3mm and 2mm, or even between 0.3mm and 8mm, in particular 1.5mm.
- the transparent optical glue is a UV optical acrylate glue.
- the transparent optical adhesive is an optical elastomer, in particular an optical silicone.
- the transparent optical adhesive has in particular a hardness of between 30 and 80 shore 00, in particular between 30 and 40 shore 00.
- the interface further comprises at least one non-contact distance-meter sensor configured to measure without contact a measurement value proportional to the distance between the contactless non-contact sensor.
- meter and a metal element carried by the display module are at least one non-contact distance-meter sensor configured to measure without contact a measurement value proportional to the distance between the contactless non-contact sensor. meter and a metal element carried by the display module.
- the capacitive touch screen is for example of rectangular shape and the control interface comprises four non-contact sensors forming distance-meter and arranged at the four corners of the capacitive touch screen.
- Each non-contact distance-meter sensor comprises in particular a transmitting electrode and a receiving electrode, a characteristic value of the contactless distance-meter sensor varying according to the distance between the transmitting and receiving electrodes of a sensor. part and the metal element carried by the display module on the other hand.
- the non-contact sensor may be a capacitive sensor, and in this case the characteristic value is in particular the capacitance.
- the non-contact sensor can be of the same technology as the capacitive location sensor.
- the non-contact sensor is an inductive sensor, and in this case the characteristic value is the inductance.
- control interface comprises in particular a computing and processing unit configured to convert the measured characteristic value into a distance value between the transmission and reception electrodes on the one hand and the element metal carried by the display module on the other hand, each distance value corresponding to a pressure value exerted on the capacitive touch screen.
- Said metal element carried by the display module is in particular formed by a metal frame surrounding the display screen.
- FIG. 1 shows an exploded perspective view from the front of a control interface according to a first embodiment
- FIG. 2 represents another schematic view from above of the control interface of FIG. 1,
- FIG. 3 represents a partial diagrammatic cross-sectional view of the control interface of FIG. 1;
- FIG. 4 represents a diagram making it possible to illustrate the operation of the control interface of FIG. 1,
- FIG. 5 represents a schematic view of a second embodiment of the control interface
- Figure 6 shows a schematic view of a third embodiment of the control interface.
- FIG. 1 is an exploded perspective view of a first exemplary embodiment of a control interface 1 for a motor vehicle, for example arranged substantially vertically in a dashboard of the vehicle.
- This control interface 1 finds a particularly advantageous use in a passenger compartment of a motor vehicle, in particular for being integrated in a control and display board for the purpose of displaying information concerning the functions to be controlled, for example the system, audio, air conditioning, heating, navigation system or the telephone system.
- control interface 1 comprises a display module 3 comprising, on the one hand, a flat screen 5, for example a TFT screen, an LCD, LED or OLED screen and a support frame 7, in particular a metal frame with fixing feet 8 of said flat screen 5 to attach the control interface 1 to the vehicle structure.
- a display module 3 comprising, on the one hand, a flat screen 5, for example a TFT screen, an LCD, LED or OLED screen and a support frame 7, in particular a metal frame with fixing feet 8 of said flat screen 5 to attach the control interface 1 to the vehicle structure.
- the control interface 1 further comprises, moving away from the flat screen 5, a capacitive touch screen 9, a protection plate 11 and, optionally, a polarizing film 13.
- the protection plate 11 is made of a transparent material, such as for example glass or polycarbonate, in particular stained, smoked or crystal, and has substantially the dimensions of an opening in a facade behind which the control interface 1 must to be installed.
- the protection plate 11 is for example glued by a transparent optical glue on the capacitive touch screen 9.
- the thickness of the protection plate 11 is chosen so that the protection plate 11 with the polarizing film 13 is flush with the front face.
- the protection plate 13 has a thickness of between 1.6 and 2 mm and the capacitive touch-sensitive panel 9 has a thickness of between 1.0 and 1.4 mm, preferably 1.2 mm.
- the capacitive touch-sensitive panel 9 is generally rectangular in shape and comprises at least one capacitive location sensor 17 defining a detection surface and configured to locate a user's finger with good resolution. .
- the capacitive location sensor 17 is for example made using electrodes in a transparent electrical conductor, in particular indium tin oxide. (commonly called ITO) deposited on a transparent substrate, for example glass. It is therefore understood that at the level of the detection surface defined by the capacitive location sensor 17, the capacitive touch screen is optically transparent.
- ITO indium tin oxide
- the capacitive location sensor 17 allows in particular a user to select or activate a function, such as a function of the air conditioning system, navigation, car radio or scrolling and selecting a choice from a list , such as a phone list.
- a function such as a function of the air conditioning system, navigation, car radio or scrolling and selecting a choice from a list , such as a phone list.
- the capacitive touch-sensitive panel 9 further comprises at least one, in the present case four non-contact sensors 19 forming each distance-meter and configured to measure without contact a distance between the non-contact sensor 19 forming a distance-meter and a metal element carried by the display module 3.
- Non-contact sensors are, for example, capacitive or inductive sensors.
- non-contact sensors 19 can be integrated in the capacitive touch-sensitive panel 9 in the same way as the capacitive location sensor 17. This has the advantage that the non-contact sensors 19 can be manufactured at the same time as the capacitive position sensor 17 and by an identical or at least similar process, which allows a significant cost reduction. Indeed, the non-contact sensor 19 can be made as a capacitive sensor with the same technology as the capacitive location sensor 17, that is to say also by depositing a transparent electrical conductor, for example ⁇ , on a transparent substrate, for example glass.
- Each non-contact distance measuring sensor 19 comprises a transmission electrode 19 A and a reception electrode 19B.
- the metal element may be a metal element, for example in the form of a plate attached to the display module 3, but it is more judicious that the four non-contact sensors 19 forming a distance-meter are positioned outside the surface detection of the location sensor 17 and vis-à-vis the support frame 7 which is already metal and grounded to protect the screen electromagnetic disturbances.
- This metal support frame 7 surrounds the display screen 5.
- FIG. 3 which only shows a partial sectional view in an XY plane, it is shown that the capacitive touch-sensitive panel 9 is fixed to the display module 3 via a layer 21 of transparent elastic optical adhesive .
- This layer 21 of transparent optical adhesive adheres both to the metal frame 7 and the display screen 5 and allows a relative movement in the X direction between said capacitive touch panel 9 and the display screen 5 when The user presses the capacitive touch pad 9. Indeed, pressing on the capacitive touch screen 9 or on the protection plate 11 with or without polarizing film 13 has the effect of compressing the layer 21 of transparent optical adhesive.
- the layer 21 of transparent optical adhesive not only fulfills the function of fastening means but also the damping and transmitting function of a support force.
- the transparent optical adhesive layer 21 has a thickness of between 0.3mm and 2mm, in particular 1.5mm.
- the transparent optical glue is a UV optical acrylate glue.
- the transparent optical adhesive is an optical elastomer, in particular an optical silicone.
- the layer 21 of transparent optical glue has a hardness of between 30 and 80 shore 00, in particular between 30 and 40 shore 00.
- Figure 4 shows a simplified diagram for explaining the operation of non-contact sensors 19 forming distance-meter.
- the transmission electrode 19A emits an electric field, for example an alternating field in a given period.
- the field lines 23 penetrate the layer 21 of optical glue, are deformed by the metal element formed by the frame 7 of the display module 3 to be received by the receiving electrode 19B.
- the emission electrode 19A emits a magnetic field, for example an alternating field in a period given.
- the field lines 23 penetrate the layer 21 of optical glue, are deformed by the metal element formed by the frame 7 of the display module 3 to be received by the receiving electrode 19B.
- the electrodes 19A and 19B will move towards the metal frame 7, which will have the effect of varying a characteristic measurement value (the capacitance in the case of a capacitive sensor and the inductor in the case of an inductive sensor) of the non-contact sensor 19 forming a distance-meter. Placed in a resonance or oscillation circuit, the variation of the measurement characteristic value results in a variation of the resonance frequency which can be measured to determine this measurement characteristic value.
- a characteristic measurement value the capacitance in the case of a capacitive sensor and the inductor in the case of an inductive sensor
- each non-contact sensor 19 forming a distance-meter, each measurement value corresponding to a determined distance between the non-contact sensor 19 on the one hand and the frame 7 of the display module 3.
- each distance corresponds to a well-defined bearing force and therefore to a specific bearing pressure.
- control interface 1 further comprises a computing and processing unit 27 (see FIG. 2) configured to convert, for example, a characteristic measurement value into a distance value between the transmission and reception electrodes 19A. 19B on the one hand and the metal frame 7 on the other hand, each distance value corresponding to a pressure value exerted on the capacitive touch panel 9.
- FIG. 5 shows a simplified cross-sectional diagram of a second embodiment from the command interface 1.
- This embodiment differs from that of FIGS. 1 to 3 in that it further comprises a haptic feedback unit 31 comprising at least one vibratory actuator 33 mechanically connected directly or indirectly to the capacitive touch panel 9.
- L Vibration actuator 33 generates for example a vibration in a direction in the plane YZ (see arrow 35). This is interesting not to disturb the Pressure measurements according to the X direction.
- control interface 1 comprises, for example, a style frame 37 intended to be integrated in the facade of the dashboard and fixed, for example by gluing, to the capacitive touchscreen 9.
- the vibratory actuator 33 is fixed beneath the underside of the stylistic frame 37 so that a haptic feedback can be transmitted to the sensing surface of the touchpad 9 via the stylistic frame 37.
- the transparent optical adhesive layer 21 allows a certain relative movement in the Y-Z plane of the capacitive touch-sensitive panel 9 and thus also of the protection plate 11 with the polarizing film 13 with respect to the display module 3.
- the control interface comprises an electronic card 39, such as a PCB for "Printed Circuit Board” in English, for example carrying microprocessors and control circuits.
- the vibratory actuator 33 and the electrical card 39 are connected by cables not shown.
- the vibration of the capacitive touch panel 9 makes it possible to provide a haptic feedback to the user in response to a contact, such as a support or movement of his finger or any other activation means (for example a stylus).
- the return is said "haptic" because it is noticeable by the touch of the capacitive touch screen 9.
- the vibratory actuator 33 is for example of the ERM type (for "Eccentric
- the vibratory actuator 33 is of the electromagnetic type. It relies for example on a technology similar to that of the speaker (in English: “Voice-Coil”).
- the vibratory actuator 33 is for example an LRA (for "Linear Resonant Actuator” in English), also called “linear motor”.
- the moving part is for example formed by a movable magnet sliding inside a fixed coil or by a movable coil sliding around a fixed magnet, the movable part and the fixed part cooperating by electromagnetic effect.
- the vibratory actuator 33 is of piezoelectric type.
- the layer 21 of transparent optical adhesive also plays the role of a damping of the vibrations generated by the vibratory actuator 33 and makes it possible to limit the displacement in X of the capacitive touch-sensitive panel 9 towards the display module 3.
- a haptic feedback can be generated in response to the detected support, for example when the duration and the force of the support cross a respective threshold while the user's finger is still in contact or when the displacement measurement indicates that the user is releasing his finger from the capacitive touch screen 9.
- the vibration of the capacitive touch screen 9 does not disturb the measurement of the displacement thereof. Firstly because the displacement measurement of the capacitive touch screen 9 is subsequent to the acquisition of the measurement. Then, because the vibration of the capacitive touch panel 9 is not necessarily and only directed in the vertical direction X of the measured displacement but can also be directed in the plane (Y, Z) of the capacitive touch panel 9, and therefore with little effect of the vibrations in the vertical direction X of the displacement measurement. Furthermore, the vibration is emitted only over a very short time, such as less than 200 milliseconds, which has little impact on the measurement of the displacement that can be performed continuously.
- the haptic feedback unit 31 it is also possible to configure the haptic feedback unit 31 to differentiate the vibration displacement measurement from the capacitive touch panel 9 or to determine an average displacement, to be compared according to whether the capacitive touch panel 9 vibrates or not, with average displacement thresholds with or without vibrations.
- the haptic feedback unit 31 may for example define the pace
- the frequency, the phase shift, the amplitude of the acceleration, the duration of the vibration for example in relation to the displacement of the mobile part formed by the capacitive touch screen 9, the protection plate 11 and the if necessary, the polarizing film 13, and therefore relatively to the pressing force exerted by the user.
- This dependence is for example a proportional relation or a mathematical law or can be predefined in a correspondence table previously stored in the memory of the haptic feedback unit 31.
- the haptic feedback unit 31 can be configured to control the vibratory actuator 33 in order to generate a haptic feedback only when the measured displacement is greater than a trigger threshold.
- Programming haptic feedback according to trip thresholds allows in particular to differentiate the walk of the finger of the user on the capacitive touch screen 9, the support intentionally made to activate or select a command for example. It also avoids untimely generations of haptic feedback that could occur by involuntary grazing of the capacitive touch screen 9.
- FIG. 6 shows a simplified cross-sectional diagram of a third embodiment of the control interface 1.
- This third embodiment is a simplified version of the second embodiment of FIG. 5 and differs from it only in that the capacitive touch-sensitive panel 9 of the control interface 1 does not include contactless sensors 19 distance-meter.
- the thickness of the layer 21 of transparent optical glue may be greater, especially between 0.3mm and 2mm, see up to 8mm.
- control interface 1 is not very complex and made from a limited number of parts.
- the transparent optical glue layer 21 is used both as a means of fixing between the capacitive touch-sensitive panel 9 and the display module 3 and as an elastic and damping element allowing relative movement along the YZ plane of the touch-sensitive panel. capacitive 9. This significantly improves the simplicity of assembly, assembly time and cost.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1562976A FR3045855B1 (en) | 2015-12-21 | 2015-12-21 | CONTROL INTERFACE FOR MOTOR VEHICLE |
PCT/EP2016/082089 WO2017108898A1 (en) | 2015-12-21 | 2016-12-21 | Control interface for automotive vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3394713A1 true EP3394713A1 (en) | 2018-10-31 |
Family
ID=56321988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16825394.6A Ceased EP3394713A1 (en) | 2015-12-21 | 2016-12-21 | Control interface for automotive vehicle |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3394713A1 (en) |
FR (1) | FR3045855B1 (en) |
WO (1) | WO2017108898A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017212011B3 (en) * | 2017-07-13 | 2018-11-22 | Bayerische Motoren Werke Aktiengesellschaft | Display device and motor vehicle with display device |
FR3070635B1 (en) * | 2017-09-05 | 2019-08-23 | Continental Automotive France | OPTICAL TOUCH PALLET ON DRIVET WHEEL FOR FINGER DETECTION |
CN109782966A (en) * | 2019-01-31 | 2019-05-21 | 科世达(上海)机电有限公司 | A kind of component of capacitance touching control equipment and its integrated power induction elastic slice and vibration part |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5493739B2 (en) * | 2009-03-19 | 2014-05-14 | ソニー株式会社 | Sensor device and information processing device |
KR20110023031A (en) * | 2009-08-28 | 2011-03-08 | 삼성전기주식회사 | Touch screen device |
US9195354B2 (en) * | 2013-03-12 | 2015-11-24 | Synaptics Incorporated | Device and method for localized force and proximity sensing |
JP6484079B2 (en) * | 2014-03-24 | 2019-03-13 | 株式会社 ハイディープHiDeep Inc. | Kansei transmission method and terminal for the same |
-
2015
- 2015-12-21 FR FR1562976A patent/FR3045855B1/en active Active
-
2016
- 2016-12-21 EP EP16825394.6A patent/EP3394713A1/en not_active Ceased
- 2016-12-21 WO PCT/EP2016/082089 patent/WO2017108898A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
FR3045855A1 (en) | 2017-06-23 |
FR3045855B1 (en) | 2018-11-30 |
WO2017108898A1 (en) | 2017-06-29 |
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