EP3201734A1 - Control device and method for a motor vehicle - Google Patents

Control device and method for a motor vehicle

Info

Publication number
EP3201734A1
EP3201734A1 EP15788139.2A EP15788139A EP3201734A1 EP 3201734 A1 EP3201734 A1 EP 3201734A1 EP 15788139 A EP15788139 A EP 15788139A EP 3201734 A1 EP3201734 A1 EP 3201734A1
Authority
EP
European Patent Office
Prior art keywords
haptic
finger
zone
control device
detected
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.)
Withdrawn
Application number
EP15788139.2A
Other languages
German (de)
French (fr)
Inventor
Stéphanie DABIC
Nour-Eddine EL-OUARDI
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.)
Dav SA
Original Assignee
Dav SA
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 Dav SA filed Critical Dav SA
Publication of EP3201734A1 publication Critical patent/EP3201734A1/en
Withdrawn legal-status Critical Current

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
    • 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—Arrangement of adaptations of instruments
    • B60K35/10—
    • B60K35/25—
    • B60K35/26—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W50/16—Tactile feedback to the driver, e.g. vibration or force feedback to the driver on the steering wheel or the accelerator pedal
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • 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
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
    • B60K2360/143—
    • B60K2360/1438—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/143—Alarm means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/01—Indexing scheme relating to G06F3/01
    • G06F2203/014—Force feedback applied to GUI

Definitions

  • the present invention relates to a control device for a motor vehicle and a control method of said control device.
  • buttons on the dashboard of a car cockpit results in an increase in the number of buttons on the dashboard of a car cockpit.
  • the number of buttons can not be increased to infinity, especially because of the complexity generated, limited space, accessibility or cognitive load.
  • the interaction of the driver with the systems in the car can reproduce a situation of attentional overload in which the driver can not handle at best all the information of the driving task, resulting in errors and a time of longer detection.
  • buttons are centralize by replacing them with a touch screen. This makes it possible to continue to increase the number of functions, these becoming programmable and reconfigurable and exposed temporarily or permanently depending on the context or the activated function.
  • the screen thus includes a possibility of multifunctionality, while dematerializing the buttons and being customizable.
  • the screens have three other major advantages: they allow on the one hand a direct interaction (co-implantation of the display and input), on the other hand they are flexible (the display can be easily configured for a number of functions), and finally they are intuitive (familiar interaction method such as "point").
  • An object of the present invention is to provide a control device and a control method of said control device, which does not hinder driving, which is well perceived and appreciated by users, and which can be discriminable from other signals for a application of touch screens respecting automobile constraints.
  • the subject of the present invention is a control device for a motor vehicle comprising:
  • a touch surface for detecting a touch of a user's finger and moving the finger on the touch surface
  • a haptic and / or audible feedback module configured to vibrate the tactile surface and / or to generate a sound feedback to the user, in response to contact of the tactile surface
  • control unit configured to control the haptic and / or sound feedback module, in order to generate a haptic and / or audible return pattern when a movement of the finger is detected on a border separating two zones touch surface.
  • Border separating two zones means a boundary or limitation predefined on the touch surface via for example the computer program or software loaded into the control unit. It is therefore a software-defined boundary and not a physical boundary or identified by markings. One can thus simulate through haptic feedback and / or sound, a physical boundary or a limitation between two areas while the touch surface is devoid and generally smooth.
  • control device taken alone or in combination,
  • the touch surface comprises at least a first zone delimited by a closed surface, and at least a second zone surrounding said first zone.
  • a first haptic and / or sound return is generated when a movement of the finger entering the first zone delimited by a closed surface is detected and a second haptic and / or sound return is generated when a displacement of the finger exiting in said first zone is detected.
  • the second haptic and / or sound return is distinct from the first haptic and / or sound return
  • control unit controls a function when a contact is detected in the area behind the border
  • a parameter of the sound return is chosen from the intensity of the volume, phase, frequency, duration and / or a parameter of the haptic feedback is chosen from the intensity of the acceleration, frequency, amplitude, duration, phase.
  • the invention also relates to a control method of a control device for a motor vehicle as described above, characterized in that it comprises the following steps:
  • the tactile surface comprises at least a first zone delimited by a closed surface, and at least a second zone surrounding said first zone, - a first haptic feedback and / or sound is generated when a movement of the finger entering a first zone is detected and a second haptic and / or audible return is generated when a displacement of the finger exiting in said first zone is detected,
  • the second haptic and / or sound return is distinct from the first haptic and / or sound return
  • FIG. 1 represents an example of a control device for a motor vehicle
  • Figure 2 shows an example of a touch surface.
  • FIG. 1 represents a control device for a motor vehicle 1.
  • the control device 1 comprises a tactile surface 2 and a haptic and / or audible feedback module 4.
  • the touch surface 2 is intended to detect a touch of a finger of a user and the movement of the finger on the touch surface 2.
  • the haptic and / or sound return module 4 is configured to vibrate the touch surface 2 in response to contact of the touch surface 2 by a finger or other activation means (for example a stylus) of a user having for example modified or selected a command and / or to generate a sound feedback to the user, in response to a contact of the touch surface 2.
  • a finger or other activation means for example a stylus
  • Hapic means a return by touch.
  • haptic feedback is a vibratory or vibrotactile signal.
  • the control device 1 may comprise a display device disposed under the touch surface 2 to display images through the touch surface 2, then transparent, thereby forming a touch screen.
  • a touch screen is an input device that allows users of a system to interact with it through touch. It allows the direct interaction of the user on the zone he wants to select for various uses such as, for example, the selection of a destination address or a name in a directory, the air conditioning system settings, enabling a dedicated function, selecting a track from a list, or generally scrolling through a list of choices, selection, validation, and error.
  • the touch surface 2 comprises a plate carrying a contact sensor to detect a pressing pressure or a movement of the finger or a stylus of the user.
  • the contact sensor is for example a pressure sensor, such as using the FSR technology for "Force Sensing Resistor” in English, that is to say using pressure-sensitive resistors.
  • SFR technology has a very good resistance and robustness, while having a high resolution. In addition, it is very reactive and precise, while being relatively stable over time. It can have a fairly long life, and can be used with any type of activation means, at a relatively low cost.
  • the senor operates by contacting two conductive layers for example by the action of the finger.
  • One of the embodiments consists in covering a glass slab with a layer of conductive ink, on which is superimposed a sheet of flexible polyester, itself covered on its inner face with a layer of conductive ink. Insulating and transparent pads isolate the slab from the polyester sheet. The activation on the tactile surface produces a slight depression of the polyester layer, which comes into contact with the conductive layer of the glass slab. The local contact of the two conductive layers causes a modification of the electric current applied to the slab, corresponding to a voltage gradient.
  • the contact sensor comprises flexible semiconductor layers sandwiched between for example a conductive layer and a resistive layer.
  • a conductive layer By exerting pressure or sliding on the FSR layer, its ohmic resistance decreases allowing, by applying a suitable voltage, to measure the pressure applied and / or the location of the place where the pressure is exerted.
  • the contact sensor is based on a capacitive technology.
  • the haptic feedback module 4 comprises at least one actuator (not shown) connected to the plate of the touch surface 2, to generate the haptic feedback as a function of a signal from the contact sensor.
  • the haptic feedback is a vibratory signal such as a vibration produced by a sinusoidal control signal or by a control signal comprising one or a succession of pulses sent to the actuator.
  • the vibration is for example directed in the plane of the touch surface 2 or orthogonally to the plane of the touch surface 2 or directed in a combination of these two directions.
  • the actuator is based on a technology similar to that of the speaker (in English: "Voice Coil"). It comprises a fixed part and a part movable in translation in an air gap of the fixed part, for example of the order of 200 ⁇ , between a first and a second position, parallel to a longitudinal axis of the movable part.
  • 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 moving parts are connected to the plate so that the movement of the moving parts causes the translational movement of the plate to generate the haptic feedback to the user's finger.
  • This technology is easily controllable and can move large masses, such as a screen, at various frequencies and meets the strict automotive constraints that are low cost, good resistance to significant temperature variations, and ease of use. in place.
  • the control device 1 furthermore comprises a control unit 5 configured to control the haptic and / or sound return module 4 in order to generate a haptic and / or audible return pattern when a movement of the finger is detected on a border 6 separating two zones Z1, Z2 from the touch surface 2.
  • a control unit 5 configured to control the haptic and / or sound return module 4 in order to generate a haptic and / or audible return pattern when a movement of the finger is detected on a border 6 separating two zones Z1, Z2 from the touch surface 2.
  • border 6 is not materialized on the touch surface 2.
  • the movement of the finger includes information on the location of the finger on at least two successive spatial coordinates on the tactile surface 2.
  • a parameter of the sound return can be chosen among the intensity of the volume, the phase, the frequency, the duration.
  • a parameter of the haptic feedback can be chosen from the intensity of the acceleration, the frequency, the amplitude, the duration, the phase.
  • the border has for example a line shape, for example at least partially rectilinear.
  • control unit 5 controls a function, for example to control on-board vehicle systems such as the air conditioning, radio, music, telephone, ventilation or navigation system, when a contact is detected in zone Z1 located behind border 6.
  • the tactile surface 2 comprises at least a first zone Z1 delimited by a closed surface, for example substantially square, and at least a second zone Z2 surrounding the first zone Z1.
  • control unit 5 controls a function when a contact is detected in the closed zone Z1.
  • One can thus simulate for example a key of keyboard.
  • the control unit 5 controls a function when a contact is detected in the closed zone Z1.
  • One can thus simulate for example a key of keyboard.
  • a haptic feedback informing him of this passage, simulating for example the depression of a key.
  • a first haptic and / or sound return is generated when a movement of the finger entering a closed zone Z1 is detected and that a second haptic and / or sound return is generated when a movement of the finger exiting in said closed zone Z1 is detected.
  • the second haptic feedback may be distinct from the first haptic feedback so that the feeling of a user pressing and releasing a key can be simulated.

Abstract

The invention relates to a control device for a motor vehicle, comprising: a tactile surface (2) for detecting the contact of the finger of a user and the movement of the finger on the tactile surface; and a haptic and/or acoustic feedback module (4) designed to make the tactile surface (2) vibrate and/or to generate an acoustic feedback for the user, in response to contact on the tactile surface (2); characterised in that it comprises a management unit (5) designed to manage the haptic feedback and/or acoustic feedback module (4) in order to generate a haptic and/or acoustic feedback pattern when a movement of the finger is detected on a border (6) separating two areas (Z1, Z2) of the tactile surface (2). The invention also relates to a control method.

Description

Dispositif et procédé de commande pour véhicule automobile Device and control method for a motor vehicle
La présente invention concerne un dispositif de contrôle pour véhicule automobile et un procédé de commande dudit dispositif de contrôle. The present invention relates to a control device for a motor vehicle and a control method of said control device.
Depuis ces dernières années, les voitures sont devenues plus faciles à manipuler avec l'apparition de nouvelles technologies émergentes (par exemple direction assistée, ABS, régulateur de vitesse, radar de recul etc.). Paradoxalement toutefois, le nombre de fonctions à contrôler pendant la conduite a lui aussi beaucoup augmenté. Ceci peut induire une certaine complexité liée à la mauvaise connaissance de l'utilisation de ces fonctionnalités et à leur diversité. La voiture est devenue un véritable espace de vie, perçue comme un centre de communi- cation personnel et interconnecté : avec par exemple le lecteur MP3, le GPS, la connexion avec les téléphones portables.  In recent years, cars have become easier to handle with the emergence of new emerging technologies (eg power steering, ABS, cruise control, reversing radar etc.). Paradoxically, however, the number of functions to be controlled while driving has also increased significantly. This can lead to some complexity related to the poor knowledge of the use of these features and their diversity. The car has become a real living space, perceived as a center of personal and interconnected communication: with, for example, the MP3 player, the GPS, the connection with mobile phones.
L'introduction de ces nouvelles fonctions se traduit par une augmentation du nombre de boutons sur le tableau de bord d'un cockpit de voiture. Cependant, le nombre de boutons ne peut pas être augmenté à l'infini, du fait notamment de la complexité engendrée, de l'espace limité, de l'accessibilité ou de la charge cognitive. De plus, l'interaction du conducteur avec les systèmes embarqués dans la voiture peut reproduire une situation de surcharge attentionnelle dans laquelle le conducteur peut ne pas traiter au mieux toutes les informations de la tâche de conduite, se traduisant par des erreurs et un temps de détection plus long.  The introduction of these new features results in an increase in the number of buttons on the dashboard of a car cockpit. However, the number of buttons can not be increased to infinity, especially because of the complexity generated, limited space, accessibility or cognitive load. In addition, the interaction of the driver with the systems in the car can reproduce a situation of attentional overload in which the driver can not handle at best all the information of the driving task, resulting in errors and a time of longer detection.
Une possibilité est de centraliser les boutons en les remplaçant par un écran tactile. Ceci permet de continuer à augmenter le nombre des fonctions, celles-ci devenant programmables et reconfigurables et exposées de façon temporaire ou permanente selon le contexte ou la fonction activée. L'écran inclut ainsi une possibilité de multifonctionnalité, tout en dématérialisant les boutons et en étant personnalisable. De plus, les écrans présentent trois autres avantages majeurs : ils permettent d'une part une interaction directe (la co-implantation de l'affi- chage et de saisie), d'autre part ils sont souples (l'affichage peut être facilement configuré pour un certain nombre de fonctions), et enfin ils sont intuitifs (méthode d'interaction familière comme par exemple « pointer »).  One possibility is to centralize the buttons by replacing them with a touch screen. This makes it possible to continue to increase the number of functions, these becoming programmable and reconfigurable and exposed temporarily or permanently depending on the context or the activated function. The screen thus includes a possibility of multifunctionality, while dematerializing the buttons and being customizable. In addition, the screens have three other major advantages: they allow on the one hand a direct interaction (co-implantation of the display and input), on the other hand they are flexible (the display can be easily configured for a number of functions), and finally they are intuitive (familiar interaction method such as "point").
Cependant, contrairement au cas d'un bouton-poussoir, lorsque le conducteur interagit avec un écran tactile, il ne reçoit aucune rétroaction liée directement à son action sur l'interface, autre que le simple contact de son doigt s'écrasant sur l'écran.  However, contrary to the case of a push button, when the driver interacts with a touch screen, he receives no feedback directly related to his action on the interface, other than the mere touch of his finger crashing on the screen. screen.
Afin de compenser la perte d'informations causée par la substitution d'interfaces mécaniques classiques par des écrans tactiles, il est prévu l'ajout d'un retour, tel que haptique, pour fournir une rétroaction du système à l'utilisateur. Ce retour permet d'éviter l'ambiguïté possible de la prise en compte de l'action de l'utilisateur par le système, susceptible de favoriser l'apparition de situations dangereuses. Il doit cependant en outre éviter de surcharger les voies visuelles et auditives déjà très sollicitées par la tâche de conduite. En effet, l'utilisation d'écrans tactiles dans un véhicule automobile ne doit pas gêner l'attention du conducteur. In order to compensate for the loss of information caused by the substitution of conventional mechanical interfaces with touch screens, it is planned to add a return, such as haptic, for provide system feedback to the user. This return makes it possible to avoid the possible ambiguity of taking into account the action of the user by the system, likely to favor the appearance of dangerous situations. However, it must also avoid overloading the visual and auditory pathways already heavily involved in the driving task. Indeed, the use of touch screens in a motor vehicle must not disturb the attention of the driver.
Un but de la présente invention est de fournir un dispositif de contrôle et un procédé de commande dudit dispositif de contrôle, qui ne gêne pas la conduite, qui soit bien perçu et apprécié par les utilisateurs, et qui puisse être discriminable des autres signaux pour une application d'écrans tactiles respectant les contraintes automobiles.  An object of the present invention is to provide a control device and a control method of said control device, which does not hinder driving, which is well perceived and appreciated by users, and which can be discriminable from other signals for a application of touch screens respecting automobile constraints.
A cet effet, la présente invention a pour objet un dispositif de commande pour véhicule automobile comportant :  For this purpose, the subject of the present invention is a control device for a motor vehicle comprising:
une surface tactile destinée à détecter un contact d'un doigt d'un utilisateur et le déplacement du doigt sur la surface tactile, et  a touch surface for detecting a touch of a user's finger and moving the finger on the touch surface, and
un module de retour haptique et/ou sonore configuré pour faire vibrer la surface tactile et/ou pour générer un retour sonore à l'utilisateur, en réponse à un contact de la surface tactile,  a haptic and / or audible feedback module configured to vibrate the tactile surface and / or to generate a sound feedback to the user, in response to contact of the tactile surface,
caractérisé en ce qu'il comporte une unité de pilotage configurée pour piloter le module de retour haptique et/ou sonore, afin de générer un motif de retour haptique et/ou sonore lorsqu'un déplacement du doigt est détecté sur une frontière séparant deux zones de la surface tactile.  characterized in that it comprises a control unit configured to control the haptic and / or sound feedback module, in order to generate a haptic and / or audible return pattern when a movement of the finger is detected on a border separating two zones touch surface.
Par frontière séparant deux zones, on entend une frontière ou limitation prédéfinie sur la surface tactile par l'intermédiaire par exemple du programme d'ordinateur ou logiciel chargé dans l'unité de pilotage. Il s'agit donc d'une frontière définie par logiciel et non d'une frontière physique ou identifiée par des marquages. On peut ainsi simuler grâce au retour haptique et/ou sonore, une frontière physique ou une limitation entre deux zones alors que la surface tactile en est dépourvue et généralement toute lisse.  Border separating two zones means a boundary or limitation predefined on the touch surface via for example the computer program or software loaded into the control unit. It is therefore a software-defined boundary and not a physical boundary or identified by markings. One can thus simulate through haptic feedback and / or sound, a physical boundary or a limitation between two areas while the touch surface is devoid and generally smooth.
Selon une ou plusieurs caractéristiques du dispositif de commande, prise seule ou en combinaison,  According to one or more characteristics of the control device, taken alone or in combination,
aucun retour haptique n'est généré une fois que le doigt a franchi la frontière, la surface tactile comporte au moins une première zone délimitée par une surface fermée, et au moins une deuxième zone entourant ladite première zone. On peut ainsi simuler par exemple une touche de clavier, un premier retour haptique et/ou sonore est généré lorsqu'un déplacement du doigt entrant dans la première zone délimitée par une surface fermée est détecté et un deuxième retour haptique et/ou sonore, est généré lorsqu'un déplacement du doigt sortant dans ladite première zone est détecté. On peut simuler le ressenti d'un utilisateur enfonçant, puis relâchant une touche, no haptic feedback is generated once the finger has crossed the border, the touch surface comprises at least a first zone delimited by a closed surface, and at least a second zone surrounding said first zone. We can simulate for example a keyboard key, a first haptic and / or sound return is generated when a movement of the finger entering the first zone delimited by a closed surface is detected and a second haptic and / or sound return is generated when a displacement of the finger exiting in said first zone is detected. We can simulate the feeling of a user pressing and releasing a key,
le deuxième retour haptique et/ou sonore est distinct du premier retour haptique et/ou sonore,  the second haptic and / or sound return is distinct from the first haptic and / or sound return,
l'unité de pilotage commande une fonction lorsqu'un contact est détecté dans la zone située derrière la frontière,  the control unit controls a function when a contact is detected in the area behind the border,
- un paramètre du retour sonore est choisi parmi l'intensité du volume, phase, fréquence, durée et/ou un paramètre du retour haptique est choisi parmi l'intensité de l'accélération, fréquence, amplitude, durée, la phase.  a parameter of the sound return is chosen from the intensity of the volume, phase, frequency, duration and / or a parameter of the haptic feedback is chosen from the intensity of the acceleration, frequency, amplitude, duration, phase.
L'invention a aussi pour objet un procédé de commande d'un dispositif de commande pour véhicule automobile tel que décrit précédemment, caractérisé en ce qu'il comporte les étapes suivantes :  The invention also relates to a control method of a control device for a motor vehicle as described above, characterized in that it comprises the following steps:
on détecte un contact d'un doigt d'un utilisateur et le déplacement du doigt sur une surface tactile, et  detecting a touch of a user's finger and moving the finger on a touch surface, and
on génère un motif de retour haptique et/ou sonore lorsqu'un déplacement du doigt est détecté sur une frontière séparant deux zones de la surface tactile. Selon une ou plusieurs caractéristiques du procédé de commande prise seule ou en combinaison,  generating a haptic and / or audible return pattern when a finger is detected on a boundary separating two areas of the touch surface. According to one or more characteristics of the control method, taken alone or in combination,
aucun retour haptique n'est généré une fois que le doigt a franchi la frontière, la surface tactile comporte au moins une première zone délimitée par une surface fermée, et au moins une deuxième zone entourant ladite première zone, - un premier retour haptique et/ou sonore est généré lorsqu'un déplacement du doigt entrant dans une première zone est détecté et un deuxième retour haptique et/ou sonore, est généré lorsqu'un déplacement du doigt sortant dans ladite première zone est détecté,  no haptic feedback is generated once the finger has crossed the border, the tactile surface comprises at least a first zone delimited by a closed surface, and at least a second zone surrounding said first zone, - a first haptic feedback and / or sound is generated when a movement of the finger entering a first zone is detected and a second haptic and / or audible return is generated when a displacement of the finger exiting in said first zone is detected,
le deuxième retour haptique et/ou sonore est distinct du premier retour haptique et/ou sonore,  the second haptic and / or sound return is distinct from the first haptic and / or sound return,
on commande une fonction lorsqu'un contact est détecté dans la zone située derrière la frontière. DESCRIPTION SOMMAIRE DES DESSINS a function is controlled when a contact is detected in the area behind the border. SUMMARY DESCRIPTION OF THE DRAWINGS
D'autres avantages et caractéristiques apparaîtront à la lecture de la description de l'invention, ainsi que sur les figures annexées qui représentent un exemple de réalisation non limitatif de l'invention et sur lesquelles : Other advantages and characteristics will appear on reading the description of the invention, as well as on the appended figures which represent a non-limiting exemplary embodiment of the invention and in which:
la figure 1 représente un exemple de dispositif de commande pour véhicule automobile, et  FIG. 1 represents an example of a control device for a motor vehicle, and
la figure 2 représente un exemple de surface tactile.  Figure 2 shows an example of a touch surface.
Sur ces figures, les éléments identiques portent les mêmes numéros de référence.  In these figures, the identical elements bear the same reference numbers.
DESCRIPTION DÉTAILLÉE DETAILED DESCRIPTION
La figure 1 représente un dispositif de commande pour véhicule automobile 1. FIG. 1 represents a control device for a motor vehicle 1.
Le dispositif de commande 1 comporte une surface tactile 2 et un module de retour haptique et/ou sonore 4.  The control device 1 comprises a tactile surface 2 and a haptic and / or audible feedback module 4.
La surface tactile 2 est destinée à détecter un contact d'un doigt d'un utilisateur et le déplacement du doigt sur la surface tactile 2.  The touch surface 2 is intended to detect a touch of a finger of a user and the movement of the finger on the touch surface 2.
Le module de retour haptique et/ou sonore 4 est configuré pour faire vibrer la surface tactile 2 en réponse à un contact de la surface tactile 2 par un doigt ou tout autre moyen d'activation (par exemple un stylet) d'un utilisateur ayant par exemple modifié ou sélectionné une commande et/ou pour générer un retour sonore à l'utilisateur, en réponse à un contact de la surface tactile 2.  The haptic and / or sound return module 4 is configured to vibrate the touch surface 2 in response to contact of the touch surface 2 by a finger or other activation means (for example a stylus) of a user having for example modified or selected a command and / or to generate a sound feedback to the user, in response to a contact of the touch surface 2.
On désigne par « haptique », un retour par le toucher. Ainsi, le retour haptique est un signal vibratoire ou vibrotactile.  "Haptic" means a return by touch. Thus, haptic feedback is a vibratory or vibrotactile signal.
Le dispositif de commande 1 peut comporter un dispositif d'affichage disposé sous la surface tactile 2 pour afficher des images au travers de la surface tactile 2, alors transparente, formant ainsi un écran tactile.  The control device 1 may comprise a display device disposed under the touch surface 2 to display images through the touch surface 2, then transparent, thereby forming a touch screen.
Un écran tactile est un périphérique d'entrée permettant aux utilisateurs d'un système d'interagir avec celui-ci grâce au toucher. Il permet l'interaction directe de l'utilisateur sur la zone qu'il veut sélectionner pour des utilisations diverses comme par exemple, la sélection d'une adresse de destination ou d'un nom dans un répertoire, les réglages du système de climatisation, l'activation d'une fonction dédiée, la sélection d'une piste parmi une liste, ou d'une manière générale le défilement parmi une liste de choix, la sélection, la validation, et l'erreur. La surface tactile 2 comporte une plaque portant un capteur de contact pour détecter une pression d'appui ou un déplacement du doigt ou d'un stylet de l'utilisateur. A touch screen is an input device that allows users of a system to interact with it through touch. It allows the direct interaction of the user on the zone he wants to select for various uses such as, for example, the selection of a destination address or a name in a directory, the air conditioning system settings, enabling a dedicated function, selecting a track from a list, or generally scrolling through a list of choices, selection, validation, and error. The touch surface 2 comprises a plate carrying a contact sensor to detect a pressing pressure or a movement of the finger or a stylus of the user.
Le capteur de contact est par exemple un capteur de pression, tel qu'utilisant la technologie FSR pour « Force Sensing Resistor » en anglais, c'est-à-dire utilisant des résistances sensibles à la pression. La technologie SFR présente une très bonne résistance et robustesse, tout en ayant une résolution élevée. De plus, elle est très réactive et précise, tout en étant relativement stable dans le temps. Elle peut avoir une durée de vie assez longue, et est utilisable avec tout type de moyen d'activation, à un coût relativement faible.  The contact sensor is for example a pressure sensor, such as using the FSR technology for "Force Sensing Resistor" in English, that is to say using pressure-sensitive resistors. SFR technology has a very good resistance and robustness, while having a high resolution. In addition, it is very reactive and precise, while being relatively stable over time. It can have a fairly long life, and can be used with any type of activation means, at a relatively low cost.
Selon une conception de la technologie FSR, le capteur fonctionne en mettant en contact deux couches conductrices par exemple par l'action du doigt. Une des réalisations consiste à recouvrir une dalle de verre d'une couche d'encre conductrice, sur laquelle est superposée une feuille de polyester souple, elle-même recouverte sur sa face interne d'une couche d'encre conductrice. Des plots isolants et transparents isolent la dalle de la feuille polyester. L'activation sur la surface tactile produit un léger enfoncement de la couche polyester, qui vient en contact avec la couche conductrice de la dalle de verre. Le contact local des deux couches conductrices entraîne une modification du courant électrique appliqué sur la dalle, correspondant à un gradient de tension.  According to a design of the FSR technology, the sensor operates by contacting two conductive layers for example by the action of the finger. One of the embodiments consists in covering a glass slab with a layer of conductive ink, on which is superimposed a sheet of flexible polyester, itself covered on its inner face with a layer of conductive ink. Insulating and transparent pads isolate the slab from the polyester sheet. The activation on the tactile surface produces a slight depression of the polyester layer, which comes into contact with the conductive layer of the glass slab. The local contact of the two conductive layers causes a modification of the electric current applied to the slab, corresponding to a voltage gradient.
Selon un autre exemple, le capteur de contact comprend des couches semi-conductrices souples prises en sandwich entre par exemple une couche conductrice et une couche résistive. En exerçant une pression ou un glissé sur la couche FSR, sa résistance ohmique diminue permettant ainsi, par application d'une tension électrique adaptée, de mesurer la pression appliquée et / ou la localisation de l'endroit où la pression est exercée.  In another example, the contact sensor comprises flexible semiconductor layers sandwiched between for example a conductive layer and a resistive layer. By exerting pressure or sliding on the FSR layer, its ohmic resistance decreases allowing, by applying a suitable voltage, to measure the pressure applied and / or the location of the place where the pressure is exerted.
Selon un autre exemple, le capteur de contact est basé sur une technologie capacitive. In another example, the contact sensor is based on a capacitive technology.
Le module de retour haptique 4 comporte au moins un actionneur (non représenté) relié à la plaque de la surface tactile 2, pour générer le retour haptique en fonction d'un signal issu du capteur de contact. Le retour haptique est un signal vibratoire tel qu'une vibration produite par un signal de commande sinusoïdal ou par un signal de commande comportant un ou une succession de puises, envoyé à l'actionneur. La vibration est par exemple dirigée dans le plan de la surface tactile 2 ou orthogonalement au plan de la surface tactile 2 ou encore dirigée selon une combinaison de ces deux directions. The haptic feedback module 4 comprises at least one actuator (not shown) connected to the plate of the touch surface 2, to generate the haptic feedback as a function of a signal from the contact sensor. The haptic feedback is a vibratory signal such as a vibration produced by a sinusoidal control signal or by a control signal comprising one or a succession of pulses sent to the actuator. The vibration is for example directed in the plane of the touch surface 2 or orthogonally to the plane of the touch surface 2 or directed in a combination of these two directions.
Dans le cas de plusieurs actionneurs, ces derniers sont agencés sous la surface tactile 2, dans différentes positions (au centre ou sur un côté) ou dans différentes orientations (dans la direction de l'appui sur la surface ou dans un autre axe). Selon un exemple de réalisation, l'actionneur repose sur une technologie similaire à celle du Haut-Parleur (en anglais : « Voice Coil »). Il comporte une partie fixe et une partie mobile en translation dans un entrefer de la partie fixe par exemple de l'ordre de 200μηΊ, entre une première et une deuxième position, parallèlement à un axe longitudinal de la partie mobile. La partie mobile est par exemple formée par un aimant mobile coulissant à l'intérieur d'une bobine fixe ou par une bobine mobile coulissant autour d'un aimant fixe, la partie mobile et la partie fixe coopérant par effet électromagnétique. Les parties mobiles sont reliées à la plaque de manière que le mouvement des parties mobiles engendre le mouvement en translation de la plaque pour générer le retour haptique au doigt de l'utilisateur. Cette technologie est facilement contrôlable et permet de déplacer de fortes masses, comme celle d'un écran, à diverses fréquences et respecte les contraintes automobiles très strictes que sont un faible coût, une bonne résistance aux variations de températures importantes, et une facilité de mise en place. In the case of several actuators, the latter are arranged under the touch surface 2, in different positions (in the center or on one side) or in different orientations (in the direction of the support on the surface or in another axis). According to an exemplary embodiment, the actuator is based on a technology similar to that of the speaker (in English: "Voice Coil"). It comprises a fixed part and a part movable in translation in an air gap of the fixed part, for example of the order of 200μηΊ, between a first and a second position, parallel to a longitudinal axis of the movable part. 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 moving parts are connected to the plate so that the movement of the moving parts causes the translational movement of the plate to generate the haptic feedback to the user's finger. This technology is easily controllable and can move large masses, such as a screen, at various frequencies and meets the strict automotive constraints that are low cost, good resistance to significant temperature variations, and ease of use. in place.
Le dispositif de commande 1 comporte en outre une unité de pilotage 5 configurée pour piloter le module de retour haptique et/ou sonore 4 afin de générer un motif de retour haptique et/ou sonore lorsqu'un déplacement du doigt est détecté sur une frontière 6 séparant deux zones Z1 , Z2 de la surface tactile 2.  The control device 1 furthermore comprises a control unit 5 configured to control the haptic and / or sound return module 4 in order to generate a haptic and / or audible return pattern when a movement of the finger is detected on a border 6 separating two zones Z1, Z2 from the touch surface 2.
Bien entendu, la frontière 6 n'est pas matérialisée sur la surface tactile 2.  Of course, the border 6 is not materialized on the touch surface 2.
Le déplacement du doigt, tel qu'un glissement, comporte l'information de la localisation du doigt sur au moins deux coordonnées spatiales successives sur la surface tactile 2.  The movement of the finger, such as sliding, includes information on the location of the finger on at least two successive spatial coordinates on the tactile surface 2.
Un paramètre du retour sonore peut être choisi parmi l'intensité du volume, la phase, la fréquence, la durée.  A parameter of the sound return can be chosen among the intensity of the volume, the phase, the frequency, the duration.
Un paramètre du retour haptique peut être choisi parmi l'intensité de l'accélération, la fréquence, l'amplitude, la durée, la phase.  A parameter of the haptic feedback can be chosen from the intensity of the acceleration, the frequency, the amplitude, the duration, the phase.
On peut ainsi simuler grâce au retour haptique et/ou sonore, une frontière physique entre deux zones.  It is thus possible to simulate, thanks to the haptic and / or sound return, a physical boundary between two zones.
La frontière présente par exemple une forme de ligne, par exemple au moins partiellement rectiligne.  The border has for example a line shape, for example at least partially rectilinear.
On peut prévoir en outre qu'aucun retour haptique ne soit généré une fois que le doigt a franchi la frontière 6.  It can be further provided that no haptic feedback is generated once the finger has crossed the border 6.
On peut également prévoir que l'unité de pilotage 5 commande une fonction, par exemple pour commander des systèmes embarqués du véhicule tels que le système de climatisation, de radio, de musique, du téléphone, de ventilation ou de navigation, lorsqu'un contact est détecté dans la zone Z1 située derrière la frontière 6. Selon un exemple de réalisation représenté sur la figure 2, la surface tactile 2 comporte au moins une première zone Z1 délimitée par une surface fermée, par exemple sensiblement carrée, et au moins une deuxième zone Z2 entourant la première zone Z1. It can also be provided that the control unit 5 controls a function, for example to control on-board vehicle systems such as the air conditioning, radio, music, telephone, ventilation or navigation system, when a contact is detected in zone Z1 located behind border 6. According to an exemplary embodiment shown in FIG. 2, the tactile surface 2 comprises at least a first zone Z1 delimited by a closed surface, for example substantially square, and at least a second zone Z2 surrounding the first zone Z1.
On peut également prévoir que l'unité de pilotage 5 commande une fonction lorsqu'un contact est détecté dans la zone fermée Z1. On peut ainsi simuler par exemple une touche de clavier. Ainsi, lorsque le doigt de l'utilisateur franchit la frontière 6, il ressent un retour haptique l'informant de ce passage, simulant par exemple l'enfoncement d'une touche.  It can also be provided that the control unit 5 controls a function when a contact is detected in the closed zone Z1. One can thus simulate for example a key of keyboard. Thus, when the user's finger crosses the border 6, he feels a haptic feedback informing him of this passage, simulating for example the depression of a key.
On peut prévoir en outre qu'un premier retour haptique et/ou sonore soit généré lorsqu'un déplacement du doigt entrant dans une zone fermée Z1 est détecté et qu'un deuxième retour haptique et/ou sonore soit généré lorsqu'un déplacement du doigt sortant dans ladite zone fermée Z1 est détecté. Le deuxième retour haptique peut être distinct du premier retour haptique de sorte que l'on peut simuler le ressenti d'un utilisateur enfonçant, puis relâchant une touche.  It can further be provided that a first haptic and / or sound return is generated when a movement of the finger entering a closed zone Z1 is detected and that a second haptic and / or sound return is generated when a movement of the finger exiting in said closed zone Z1 is detected. The second haptic feedback may be distinct from the first haptic feedback so that the feeling of a user pressing and releasing a key can be simulated.

Claims

REVENDI CATIONS REVENDI CATIONS
1. Dispositif de commande pour véhicule automobile comportant : 1. Control device for a motor vehicle comprising:
une surface tactile (2) destinée à détecter un contact d'un doigt d'un utilisateur et le déplacement du doigt sur la surface tactile, et  a touch surface (2) for detecting a touch of a user's finger and moving the finger on the touch surface, and
un module de retour haptique et/ou sonore (4) configuré pour faire vibrer la surface tactile (2) et/ou pour générer un retour sonore à l'utilisateur, en réponse à un contact de la surface tactile (2),  a haptic and / or audible feedback module (4) configured to vibrate the touch surface (2) and / or to generate a sound feedback to the user in response to contact of the touch surface (2),
caractérisé en ce qu'il comporte une unité de pilotage (5) configurée pour piloter le module de retour haptique et/ou sonore (4), afin de générer un motif de retour haptique et/ou sonore lorsqu'un déplacement du doigt est détecté sur une frontière (6) séparant deux zones (Z1 , Z2) de la surface tactile (2).  characterized in that it comprises a control unit (5) configured to control the haptic and / or sound return module (4), in order to generate a haptic and / or audible return pattern when a movement of the finger is detected on a boundary (6) separating two zones (Z1, Z2) from the tactile surface (2).
2. Dispositif de commande selon la revendication précédente, caractérisé en ce qu'aucun retour haptique n'est généré une fois que le doigt a franchi la frontière (6).  2. Control device according to the preceding claim, characterized in that no haptic feedback is generated once the finger has crossed the border (6).
3. Dispositif de commande selon l'une des revendications précédentes, caractérisé en ce que la surface tactile (2) comporte au moins une première zone (Z1 ) délimitée par une surface fermée, et au moins une deuxième zone (Z2) entourant ladite première zone (Z1 ).  3. Control device according to one of the preceding claims, characterized in that the touch surface (2) comprises at least a first zone (Z1) delimited by a closed surface, and at least a second zone (Z2) surrounding said first zone (Z1).
4. Dispositif de commande selon la revendication précédente, caractérisé en ce qu'un premier retour haptique et/ou sonore est généré lorsqu'un déplacement du doigt entrant dans la première zone (Z1 ) délimitée par une surface fermée est détecté et un deuxième retour haptique et/ou sonore, est généré lorsqu'un déplacement du doigt sortant dans ladite première zone (Z1 ) est détecté.  4. Control device according to the preceding claim, characterized in that a first haptic and / or sound return is generated when a movement of the finger entering the first zone (Z1) delimited by a closed surface is detected and a second return haptic and / or sound, is generated when a movement of the finger exiting in said first zone (Z1) is detected.
5. Dispositif de commande selon la revendication précédente, caractérisé en ce que le deuxième retour haptique et/ou sonore est distinct du premier retour haptique et/ou sonore.  5. Control device according to the preceding claim, characterized in that the second haptic and / or sound return is distinct from the first haptic and / or sound return.
6. Dispositif de commande selon l'une des revendications précédentes, caractérisé en ce que l'unité de pilotage (5) commande une fonction lorsqu'un contact est détecté dans la zone (Z1 ) située derrière la frontière (6).  6. Control device according to one of the preceding claims, characterized in that the control unit (5) controls a function when a contact is detected in the zone (Z1) located behind the border (6).
7. Dispositif de commande selon l'une des revendications précédentes, caractérisé en ce qu'un paramètre du retour sonore est choisi parmi l'intensité du volume, phase, fréquence, durée et/ou un paramètre du retour haptique est choisi parmi l'intensité de l'accélération, fréquence, amplitude, durée, la phase. 7. Control device according to one of the preceding claims, characterized in that a parameter of the sound return is chosen from the intensity of the volume, phase, frequency, duration and / or a parameter of the haptic feedback is chosen from intensity of acceleration, frequency, amplitude, duration, phase.
8. Procédé de commande d'un dispositif de commande pour véhicule automobile selon l'une des revendications précédentes, caractérisé en ce qu'il comporte les étapes suivantes : 8. A method of controlling a control device for a motor vehicle according to one of the preceding claims, characterized in that it comprises the following steps:
on détecte un contact d'un doigt d'un utilisateur et le déplacement du doigt sur une surface tactile (2), et  detecting a touch of a user's finger and moving the finger on a touch surface (2), and
on génère un motif de retour haptique et/ou sonore lorsqu'un déplacement du doigt est détecté sur une frontière (6) séparant deux zones (Z1 , Z2) de la surface tactile (2).  generating a haptic and / or sound return pattern when a finger is detected on a boundary (6) separating two areas (Z1, Z2) of the touch surface (2).
9. Procédé de commande selon la revendication précédente, caractérisé en ce qu'aucun retour haptique n'est généré une fois que le doigt a franchi la frontière (6).  9. Control method according to the preceding claim, characterized in that no haptic feedback is generated once the finger has crossed the border (6).
10. Procédé de commande selon l'une des revendications 8 ou 9, caractérisé en ce que la surface tactile (2) comporte au moins une première zone (Z1 ) délimitée par une surface fermée, et au moins une deuxième zone (Z2) entourant ladite première zone (Z1 ).  10. Control method according to one of claims 8 or 9, characterized in that the touch surface (2) comprises at least a first zone (Z1) delimited by a closed surface, and at least a second zone (Z2) surrounding said first zone (Z1).
11. Procédé de commande selon la revendication précédente, caractérisé en ce qu'un premier retour haptique et/ou sonore est généré lorsqu'un déplacement du doigt entrant dans la première zone (Z1 ) est détecté et un deuxième retour haptique et/ou sonore, est généré lorsqu'un déplacement du doigt sortant dans ladite première zone (Z1 ) est détecté.  11. Control method according to the preceding claim, characterized in that a first haptic and / or sound return is generated when a movement of the finger entering the first zone (Z1) is detected and a second haptic and / or sound return , is generated when a displacement of the finger exiting in said first zone (Z1) is detected.
12. Procédé de commande selon la revendication précédente, caractérisé en ce que le deuxième retour haptique et/ou sonore est distinct du premier retour haptique et/ou sonore.  12. Control method according to the preceding claim, characterized in that the second haptic and / or sound return is distinct from the first haptic and / or sound return.
13. Procédé de commande selon l'une des revendications 8 à 12, caractérisé en ce qu'on commande une fonction lorsqu'un contact est détecté dans la zone (Z1 ) située derrière la frontière (6).  13. Control method according to one of claims 8 to 12, characterized in that a function controls when a contact is detected in the zone (Z1) located behind the border (6).
EP15788139.2A 2014-10-02 2015-10-02 Control device and method for a motor vehicle Withdrawn EP3201734A1 (en)

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US20170220117A1 (en) 2017-08-03
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WO2016051115A1 (en) 2016-04-07
FR3026867A1 (en) 2016-04-08

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