FR3140689A1 - Method and device for controlling a multi-screen display system embedded in a vehicle - Google Patents

Abstract

The present invention relates to a method and a device for controlling a display system on board a vehicle (10), the display system comprising a first display device (101) with a touch interface, a second display device display (102) and a control device (103) associated with the first display device (101) and the second display device (102). Such a system allows the projection of content associated with an interactive application from the first display device to the second display device with control of functions associated with the interactive application from the first touch display device and the control device (103). Figure for abstract: Figure 1

Description

Method and device for controlling a multi-screen display system embedded in a vehicle

The present invention relates to methods and devices for controlling a display system on board a vehicle, in particular a display system comprising a plurality of display devices. The present invention also relates to a method and a device for displaying content on multiple display screens.

Technology background

Many contemporary vehicles integrate several display screens, for example with one or more screens with a touch interface among this plurality of display screens. These display screens are for example used to display information useful for driving the vehicle, for example to control and operate the infotainment system, also called IVI system (from the English “In-Vehicle Infotainment” or in French “In-vehicle infotainment”) and/or other systems embedded in the vehicle such as for example the air conditioning system and the vehicle's navigation system.

Each display screen in a multi-screen system is controlled independently of the other screens in the system, with system customization having to be carried out for each screen, with the vehicle stationary, via an edit mode, one at a time. , using the touch interface of the screen concerned when this exists, control buttons integrated into the dashboard, steering wheel controls or even a touchpad type remote control device (from English “Touchpad”), wheel or rotary touch button (from the English “Touchwheel”) for example integrated into the central console of the vehicle.

These limitations in controlling the different screens of a vehicle make the use of the screens complicated, not very intuitive and do not allow easy access to the different information displayed.

Summary of the present invention

An object of the present invention is to solve at least one of the problems of the technological background described above.

Another object of the present invention is to improve the control of a display system with several display devices (also called display screens).

According to a first aspect, the present invention relates to a method for controlling a display system on board a vehicle, the display system comprising a first display device with a touch interface, a second display device and a device control associated with the first display device and the second display device, the method comprising the following steps:
- display of a set of graphical man-machine interfaces, called HMIs, on the first display device, the set of HMIs comprising a first HMI displayed on a first part of the first display device and associated with a first interactive application and a second HMI displayed on a second part of the first display device and associated with a second interactive application;
- reception of a first request to display a first graphic content associated with the first interactive application on the second display device, the first request being received from a first part of the tactile interface associated with the first part of the first display device associated with the first interactive application;
- display of the first graphic content on the second display device;
- control of a first set of functions associated with the first graphic content via the first part of the touch interface and a second set of functions associated with the first graphic content via the control device.

Such a method makes it possible to control the display of content associated with an interactive application (from the English "widget") on a second screen from a first screen, and to control functions relating to the content displayed on the second screen to both from the first screen, via the touch interface of the latter, and from a control device (for example a touch pad or a rotary button, touch or not).

Such a solution makes it possible to use several display devices of the same system in a complementary manner, which facilitates access to information and improves the user experience.

According to a variant, the method further comprises a step of modifying content of the first HMI displayed on the first part of the first display device when displaying the first graphic content on the second display device to pass from original content to modified content comprising a set of graphical objects configured to control the first set of functions.

According to another variant, the method further comprising the following steps:
- reception of a second request to end display of the first graphic content on the second display device from the first part of the touch interface;
- modification of the content of the first HMI displayed on the first part of the first display device following receipt of the second request to move from the modified content to the original content.

According to an additional variant, the method further comprises a step of displaying determined content on the second display device in replacement of the first graphic content following receipt of the second request.

According to yet another variant, the method further comprises the following steps:
- reception of a third request to display a second graphic content associated with the second interactive application on the second display device, the third request being received from a second part of the touch interface associated with the second part of the first display device associated with the second interactive application;
- display of the second graphic content on a second part of the second display device, the second graphic content being displayed on a second part of the second display device;
- control of a third set of functions associated with the second graphic content via the second part of the touch interface of the first touch display device and of a fourth set of functions associated with the second graphic content via the control device.

According to an additional variant, the method further comprises a distribution of a display surface of the second display device between the first graphic content and the second graphic content.

According to another variant, the set of HMIs displayed on the first display device further comprises at least a third HMI.

According to a second aspect, the present invention relates to a device for controlling a display system on board a vehicle, the device comprising a memory associated with a processor configured for implementing the steps of the method according to the first aspect of the present invention.

According to a third aspect, the present invention relates to a display system comprising a device as described above according to the second aspect of the present invention and at least two display devices connected in communication to the device as described above according to the second aspect of the present invention.

According to a variant, the display system further comprises a remote control device connected in communication to the device as described above according to the second aspect of the present invention.

According to a fourth aspect, the present invention relates to a vehicle, for example of the automobile type, comprising a device as described above according to the second aspect of the present invention or a display system as described above according to the third aspect of the present invention.

According to a fifth aspect, the present invention relates to a computer program which comprises instructions adapted for the execution of the steps of the method according to the first aspect of the present invention, this in particular when the computer program is executed by at least one processor.

Such a computer program can use any programming language, and be in the form of a source code, an object code, or an intermediate code between a source code and an object code, such as in partially compiled form, or in any other desirable form.

According to a sixth aspect, the present invention relates to a computer-readable recording medium on which is recorded a computer program comprising instructions for executing the steps of the method according to the first aspect of the present invention.

On the one hand, the recording medium can be any entity or device capable of storing the program. For example, the medium may comprise a storage means, such as a ROM memory, a CD-ROM or a ROM memory of the microelectronic circuit type, or even a magnetic recording means or a hard disk.

On the other hand, this recording medium can also be a transmissible medium such as an electrical or optical signal, such a signal being able to be conveyed via an electrical or optical cable, by conventional or terrestrial radio or by self-directed laser beam or by other ways. The computer program according to the present invention can in particular be downloaded onto an Internet type network.

Alternatively, the recording medium may be an integrated circuit in which the computer program is incorporated, the integrated circuit being adapted to execute or to be used in executing the method in question.

Brief description of the figures

Other characteristics and advantages of the present invention will emerge from the description of the particular and non-limiting examples of embodiment of the present invention below, with reference to the appended Figures 1 to 5, in which:

schematically illustrates a vehicle, according to a particular and non-limiting embodiment of the present invention;

schematically illustrates an on-board display system in the vehicle of the , according to a particular and non-limiting embodiment of the present invention;

schematically illustrates the display of content by the display system of the , according to a particular and non-limiting embodiment of the present invention;

schematically illustrates a device configured to control the display system of the , according to a particular and non-limiting embodiment of the present invention;

illustrates a flowchart of the different stages of a process for controlling the display system of the , according to a particular and non-limiting embodiment of the present invention.

Description of the implementation examples

A method and a device for controlling an on-board display system in a vehicle will now be described in what follows with reference jointly to Figures 1 to 5. The same elements are identified with the same reference signs throughout of the description which follows.

There schematically illustrates a part of a passenger compartment of a vehicle 10, according to a particular and non-limiting embodiment of the present invention.

There presents a view of the interior of a vehicle 10, in particular of the front part of the passenger compartment of the vehicle 10 including in particular the steering wheel and the dashboard of the vehicle 10.

The vehicle 10 corresponds for example to a vehicle with a thermal engine, with an electric motor(s) or even a hybrid vehicle with a thermal engine and one or more electric motors. The vehicle 1 thus corresponds for example to a land vehicle, for example an automobile, a truck, a coach.

According to the example of the , the vehicle 10 carries several display devices (a display device also being called a screen or display screen), namely a first display screen 101 and a second display screen 102. Of course, the number of display devices forming the set of display devices on board the vehicle 10 is not limited to 2, but extends to any number, for example 3, 4 or more display devices.

The first display screen 101 is for example integrated into a central console of the vehicle 10 and the second display screen 102 is for example integrated into the dashboard of the vehicle 10. The arrangement of the display screens is however arbitrary, the first screen 101 being able for example to be integrated at the level of the dashboard, at the bottom of the windshield, the second screen 102 being for example arranged at the base of the windshield when the first screen 101 is arranged at the level of the dashboard.

Each display device 101, 102 corresponds for example to an LCD type screen (from the English "Liquid Crystal Display" or in French "Display to crystal liquids"), for example of the TFT type (from the English “Thin-Film Transistor” or in French “Thin film transistor”), or OLED (from the English “Organic Light-Emitting Diode” or in French “Organic electroluminescent diode”).

According to another example, one or more display devices belonging to the set of display devices on board the vehicle 10 correspond to a transparent screen, adapted to display images or graphic content while offering the possibility of seeing at across. Such a screen is for example arranged on the dashboard in front of the windshield, in a head-up position. Such a transparent screen corresponds for example to an LCD and TFT type panel (from the English “Thin-Film Transistor” or in French “Thin Film Transistor”). Such a screen thus forms a head-up display (also called Head-Up Vision, known as VTH or HUD (from the English “Head Up Display” or in French “Affichage Tête Haute”))

The first display screen 101 advantageously corresponds to a so-called touch screen in that a touch interface is associated with the screen of the display device 101. Such a touch interface allows a user to interact with the graphic content displayed on this screen 101 in a tactile manner, for example by clicking via tactile support on icons to open new pages of the graphic interface displayed, to navigate in menus by swiping the screen from top to bottom, to enlarge or minimize a window by moving two fingers apart or together, etc.

According to a variant embodiment, the second display screen 102 is also touchscreen.

According to a particular embodiment, one of the display devices on board the vehicle 10, for example the first display device 101, corresponds to a screen of a mobile communication device (for example a smartphone (of the English "Smartphone" or a tablet) connected by wireless or wired communication to the vehicle 10. Such a mobile communication device advantageously comprises a display screen configured to display graphic content generated by one or more man-machine interfaces, in particular a graphical interface displayed on the screen of the mobile communication device, corresponding for example to the first display device 101, corresponds for example to a graphical interface of an operating system installed on the mobile communication device. (for example Android® or iOS from Apple®) or to a graphical interface of a mobile application installed or executed on the mobile communication device.

The wireless connection is based for example on Bluetooth® or Wifi® technology, for example Wifi Direct (according to IEEE 802.11, for example according to IEEE 802.11n or IEEE 802.11ac). According to one variant, the connection is wired, for example of the USB cable type (from the English “Universal Serial Bus” or “Bus Universel en Série” in French).

The vehicle 10 also carries a control device 103 configured to remotely control the display of graphic content(s) (images, graphic icons, textual information, etc.). Such a control device 103 corresponds for example to a touch pad, to a wheel or rotary button (with a tactile surface or not) or to any other device allowing for example to move a cursor on the first display device 101 and/or the second display device 102, to navigate through menus displayed on the first display device 101 and/or the second display device 102, to select an entry in these menus and/or a graphic object (an icon) displayed on the first display device 101 and/or the second display device 102, for example to control the execution of a function associated with the selected icon.

The first display device 101 and the second display device 102 form all or part of a display system on board the vehicle 10, an exemplary embodiment of which is described with reference to the .

There schematically illustrates a display system 20 on board the vehicle 10, according to a particular and non-limiting embodiment of the present invention.

The display system 20 illustrated on the advantageously comprises the first display device 101 and the second display device 102, as well as a control device 201 connected in communication with the first display device 101 and the second display device 102.

The control device 201 advantageously corresponds to a computer of the vehicle 10, for example the computer in charge of the infotainment system of the vehicle 10, called the IVI computer (from the English “In-Vehicle Infotainment” or in French “Infodivertissement onboard” ).

Such an IVI computer belongs to a network of computers of the vehicle 10, also called the on-board system of the vehicle 10. The computers of the vehicle 10 advantageously form a multiplexed architecture for the production of different services useful for the proper functioning of the vehicle. The computers communicate and exchange data with each other via one or more computer buses, for example a CAN data bus type communication bus (from the English “Controller Area Network” or in French “Réseau de controllers”). "), CAN FD (from the English "Controller Area Network Flexible Data-Rate" or in French "Réseau de controllers à rate flexible data-Rate"), FlexRay (according to the ISO 17458 standard) or Ethernet (according to the ISO/ IEC 802-3).

According to a variant embodiment, the control device 201 corresponds to a calculation unit of a mobile communication device (for example a smartphone or a tablet), for example when the first display device 101 corresponds to the screen of such a wireless communication device connected in wireless communication with the vehicle 10, for example via a telematic control unit, called TCU (from the English “Telematic Control Unit”), to which TCU belongs to the on-board system of the vehicle 10.

The control device 201 further controls the control device 103 to which it is connected via for example one or more data buses. The control device 201 receives, for example, data representative of command(s) from the control device 103, these data being transformed into a request for control of the content(s) displayed on the first display device 101 and/or the second device. display 102.

The display system 20 of the is advantageously configured to allow the control of content displayed for example on the second display device 102 via for example the touch interface of the first display device 101, for a first set of determined commands or controls, and via the control device 103, for a second set of determined commands or controls.

Such a system 20 allows, in particular thanks to the control device 201 which ensures the connection between all the elements 101, 102 and 103 forming the system 20, a complementarity of the different display devices 101, 102, improving for example the readability of the information by the driver of the vehicle 10 (which improves the safety of the vehicle 10) and the user-friendliness of the data display system of the vehicle 10.

An example of a control process of the display system 20 is described with reference to the below.

There schematically illustrates a process for controlling the display display system 20 on board the vehicle 10, according to a particular and non-limiting embodiment of the present invention.

The process is advantageously implemented by a device on board the vehicle 10, for example the control device 201 which takes the form of a computer for example. An example of a material embodiment of such a control device 201 is described with reference to the .

In a first operation, a set of graphic contents denoted A, B and C are displayed on the first display device 101, the display of these contents being controlled by the controlled device 201. Each content A, B and C corresponds for example to the content of a graphical man-machine interface 31, 32, 33 each associated with an interactive application, also called interactive thumbnail (from the English "widget").

According to the example of the , the content A, B, C associated with 3 interactive thumbnails 31, 32, 33 is displayed simultaneously on the first display device 101, the surface of the screen 101 being divided into 3 parts, of the same dimensions or of different dimensions , an interactive vignette being associated with each part. Of course, the number of contents associated with interactive thumbnails is not limited to but extends to any number, for example 1, 2, 4 or 5 contents displayed simultaneously.

The interactive vignette 31 corresponds for example to a navigation application, the interactive vignette 32 corresponds for example to an air conditioning application of the vehicle 10 while the third vignette 33 corresponds for example to an entertainment application, for example for reading content music (for example stored in the memory of a device connected to the vehicle or obtained from a “cloud” server (or “cloud” in French) via a wireless connection, for example in “streaming” (i.e. “streaming continuous” in French)). Of course the type of application associated with the interactive vignettes 31 to 33 is not limited to the preceding examples but extends to any type (for example application for playing video content, application for monitoring driving parameters of the vehicle 10, phone application, weather application, etc.).

Graphical content denoted D is displayed on the second display device 102. Content D corresponds for example to a home page displayed by default when starting the vehicle 10 or when switching on the display system 20 .

In a second operation, a first request to display graphic content, denoted A2, associated with the interactive thumbnail 31 on the second display device 102 is received. This first request is advantageously received from a part of the touch interface of the first display device 101 associated with the interactive thumbnail 31.

The first request is for example triggered by a tactile press on the tactile interface of the first display device 101 at the location of a virtual button or an icon displayed in the content A of the interactive thumbnail 31. The button virtual is for example associated with a so-called projection function (from the English "cast") of the content A2 associated with the interactive thumbnail 31 on the second display device 102.

In a third operation, upon receipt of the first request by the control device 201, the latter triggers the offset of the display of content A2 associated with the interactive thumbnail 31 on a screen other than the screen of the device 101, namely screen 102.

The first request also triggers a modification in the content associated with the interactive thumbnail 31 displayed on the first display device 101. On receipt of the first request, the control device 201 controls the display of content A1 on the part of the first screen 101 reserved or dedicated to the display of the interactive thumbnail 31. The content displayed on the part of the first screen 101 reserved or dedicated to the display of the interactive thumbnail 31 thus passes from the content noted A to the content noted A1 .

The content A1 corresponds for example to a set of graphic elements of the HMI of the interactive thumbnail 31 which make it possible to control a first set of functions for controlling the content A2 displayed on the second display device 102. This first set of functions advantageously depends on the type of interactive application 31.

The content A1 for example also includes information associated with the interactive application 31 which is complementary to the information displayed in the content A2.

For example, when the interactive application 31 corresponds to a navigation application, the content A2 corresponds for example to a road map of the environment in which the vehicle 10 is traveling, with for example a layout of the route that the vehicle must follow. vehicle 10 to reach the destination of the journey. The content A2 evolves as the vehicle 10 moves, updating the road map and the route layout.

The first set of functions controllable from the part of the touch interface dedicated to the interactive tile 31 includes for example a function for entering a new destination, a function for stopping the guidance, a function for visualizing the different possible routes, etc.

Receipt of the first request also triggers activation of a second set of functions to control the content A2 displayed on the second display device 102 from the control device 103. This second set of functions includes for example a function for zooming or zoom out, rotate the displayed content, or to move on the displayed road map.

The display of content A2 occupies for example the entire surface of the screen 102 (full screen display), only one content being displayed on this screen 102.

In a fourth operation, a first set of functions associated with the content A2 displayed on the second display device 102 is activated to be controlled via the part of the touch interface of the screen 101 associated with the interactive thumbnail 31 and a second set of functions associated with content A2 is activated to be controlled via the control device 103.

In a fifth operation, a second request to end display of the content A2 projected on the second display device is received by the control device 201 from the part of the touch interface of the first display device 101 associated with the interactive vignette 31.

This second request is for example triggered by a tactile press on the tactile interface of the first display device 101 at the location of a virtual button or an icon displayed in the content A of the interactive thumbnail 31. The button virtual is for example associated with a so-called end (or cancellation) projection function (from the English “cancel cast”) of the content A2 associated with the interactive thumbnail 31 on the second display device 102.

On receipt of this second request, the display on the second display device 102 returns for example to the state preceding the projection of content A2, that is to say to the display of content D.

On receipt of this second request, the display on the first display device 101 returns for example to the state preceding the projection of content A2, that is to say that the display on the part of the screen 101 allocated to interactive thumbnail 31 goes from content A1 to original content A.

In a sixth operation, a third request to display graphic content, denoted C2, associated with the interactive thumbnail 33 on the second display device 102 is received. This third request is advantageously received from a part of the touch interface of the first display device 101 associated with the interactive thumbnail 33.

The third request is for example triggered by a tactile press on the tactile interface of the first display device 101 at the location of a virtual button or an icon displayed in the content C of the interactive thumbnail 33. The button virtual is for example associated with a so-called projection function (from the English "cast") of the content C2 associated with the interactive thumbnail 33 on the second display device 102.

On receipt of the third request by the control device 201, the latter triggers the offset of the display of content C2 associated with the interactive thumbnail 33 on a screen other than the screen of the device 101, namely the screen 102.

The third request also triggers a modification in the content associated with the interactive thumbnail 33 displayed on the first display device 101. On receipt of the third request, the control device 201 controls the display of content C1 on the part of the first screen 101 reserved or dedicated to the display of the interactive thumbnail 33. The content displayed on the part of the first screen 101 reserved or dedicated to the display of the interactive thumbnail 33 thus passes from the content noted C to the content noted C1 .

The content C1 corresponds for example to a set of graphic elements of the HMI of the interactive thumbnail 33 which make it possible to control a third set of functions for controlling the content C2 displayed on the second display device 102. This third set of functions advantageously depends on the type of interactive application 33.

The content C1 for example also includes information associated with the interactive application 33 which is complementary to the information displayed in the content C2.

For example, when the interactive application 33 corresponds to a media reading/management application (music, video), the content C2 corresponds for example to a visual on a set of contents (music, video) available and/or in progress reading.

The third set of functions controllable from the part of the touch interface dedicated to the interactive tile 33 includes for example a function for changing radio bands (FM/AM), an option for adding a title to favorite, a random playback function , repetition, etc.

Receipt of the third request also triggers activation of a fourth set of functions to control the content C2 displayed on the second display device 102 from the control device 103. This fourth set of functions includes for example a function to return to the previous title or advance to the next title, pause the playback of a title, change sources, etc.

When content is being displayed on the second display device 102 such as for example content A2, the display of contents A2 and C2 is controlled so as to distribute the surface of the screen 102 between the 2 contents, equally or unequally according to parameters defined and associated with each of the interactive vignettes 31, 33.

The third set of functions associated with the content C2 displayed on the second display device 102 is activated to be controlled via the part of the touch interface of the screen 101 associated with the interactive thumbnail 33 and the fourth set of functions associated with the Content C2 is enabled to be controlled via controller 103, as is the second set of functions associated with content A2.

The end of the projection of the content C2 on the second display device 102 can be controlled for example by a tactile press on a button or an icon displayed with the content C1 on the part of the first screen 101 allocated to the interactive thumbnail 33.

Such a process thus makes it possible to manage the display of content associated with the same interactive application / interactive thumbnail on several screens and to control functions associated with this interactive application / interactive thumbnail via several interfaces or control devices. Such a process thus makes it possible to project ("cast") content initially displayed on a first screen to a second screen to display a first part of the information associated with the interactive application on a first screen and a second part of the information associated with the interactive application (and complementary to the first part for example) on a second screen, the content displayed on the second screen being for example controllable from the first screen and from a remote control tool such as device 103.

Such a process provides more visibility of the content and information displayed as well as an improved user experience.

There schematically illustrates a device 4 configured to control a display system on board a vehicle, for example the display system 20 on board the vehicle 10, according to a particular and non-limiting embodiment of the present invention. The device 4 corresponds for example to a device on board the vehicle 10, for example a computer, for example the computer 201.

The device 4 is for example configured for the implementation of the operations described with regard to Figures 1 to 3 and/or the steps of the method described with regard to the . Examples of such a device 4 include, without being limited to, on-board electronic equipment such as an on-board computer of a vehicle, an electronic computer such as an ECU (“Electronic Control Unit”), a telephone smart phone, tablet, laptop. The elements of device 4, individually or in combination, can be integrated into a single integrated circuit, into several integrated circuits, and/or into discrete components. The device 4 can be produced in the form of electronic circuits or software (or computer) modules or even a combination of electronic circuits and software modules.

The device 4 comprises one (or more) processor(s) 40 configured to execute instructions for carrying out the steps of the method and/or for executing the instructions of the software(s) embedded in the device 4. The processor 40 may include integrated memory, an input/output interface, and various circuits known to those skilled in the art. The device 4 further comprises at least one memory 41 corresponding for example to a volatile and/or non-volatile memory and/or comprises a memory storage device which may comprise volatile and/or non-volatile memory, such as EEPROM, ROM , PROM, RAM, DRAM, SRAM, flash, magnetic or optical disk.

The computer code of the embedded software(s) comprising the instructions to be loaded and executed by the processor is for example stored on memory 41.

According to different particular and non-limiting examples of embodiment, the device 4 is coupled in communication with other similar devices or systems and/or with communication devices, for example a TCU (from the English “Telematic Control Unit” or in French “Telematic Control Unit”), for example via a communications bus or through dedicated input/output ports.

According to a particular and non-limiting example of embodiment, the device 4 comprises a block 42 of interface elements for communicating with external devices, for example a remote server or the “cloud”, other nodes of the ad hoc network. The interface elements of block 42 include one or more of the following interfaces:
- RF radio frequency interface, for example of the Wi-Fi® type (according to IEEE 802.11), for example in the 2.4 or 5 GHz frequency bands, or of the Bluetooth® type (according to IEEE 802.15.1), in the band frequency at 2.4 GHz, or Sigfox type using UBN radio technology (from English Ultra Narrow Band, in French ultra narrow band), or LoRa in the 868 MHz frequency band, LTE (from English “ Long-Term Evolution” or in French “Long-Term Evolution”), LTE-Advanced (or in French LTE-advanced);
- USB interface (from the English “Universal Serial Bus” or “Bus Universel en Série” in French);
- HDMI interface (from the English “High Definition Multimedia Interface”, or “Interface Multimedia Haute Definition” in French);
- LIN interface (from the English “Local Interconnect Network”, or in French “Local Interconnected Network”).

According to another particular and non-limiting example of embodiment, the device 4 comprises a communication interface 43 which makes it possible to establish communication with other devices (such as other computers of the on-board system) via a communication channel 430. The communication interface 43 corresponds for example to a transmitter configured to transmit and receive information and/or data via the communication channel 430. The communication interface 43 corresponds for example to a CAN type wired network (from the English “Controller Area Network” or in French “Réseau de controlleres”), CAN FD (from the English “Controller Area Network Flexible Data-Rate” or in French “Réseau de controllers à flow flexible data”), FlexRay ( standardized by the ISO 17458 standard) or Ethernet (standardized by the ISO/IEC 802-3 standard).

According to a particular and non-limiting embodiment, the device 4 can provide output signals to one or more external devices, such as a display screen 440, touch or not, one or more speakers 450 and/or other peripherals 460 (projection system) via output interfaces 44, 45, 46 respectively. According to a variant, one or the other of the external devices is integrated into the device 4.

There illustrates a flowchart of the different stages of a method of controlling a display system on board a vehicle, for example the display system 20 on board the vehicle 10, according to a particular and non-limiting exemplary embodiment of the present invention. The method is for example implemented by a device on board the vehicle 10 or by the device 4 of the .

In a first step 51, a set of graphical man-machine interfaces, called HMIs, is displayed on a first display device, the set of HMIs comprising a first HMI displayed on a first part of the first display device and associated with a first interactive application and a second HMI displayed on a second part of the first display device and associated with a second interactive application.

In a second step 52, a first request for displaying a first graphic content associated with the first interactive application on a second display device is received, the first request being received from a first part of the associated touch interface to the first part of the first display device associated with the first interactive application.

In a third step 53, the first graphic content is displayed on the second display device.

In a fourth step 54, a first set of functions associated with the first graphic content is controlled via the first part of the tactile interface and a second set of functions associated with the first graphic content is controlled via a control device associated with the first device. display and to the second display device.

According to a variant, the variants and examples of the operations described in relation to Figures 1 to 3 apply to the steps of the process of the .

Of course, the present invention is not limited to the exemplary embodiments described above but extends to a method of projecting content from a first screen to a second screen which would include secondary steps without thereby departing from the scope of the present invention. The same would apply to a device configured to implement such a process.

The present invention also relates to a display system comprising the device 4 of the , a first display device and a second display device both communicatively connected to the device 4

According to a variant, the display system further comprises a device for remote control of the first and the second display device, the control device being connected in communication to the device 4.

The present invention also relates to a vehicle, for example an automobile or more generally an autonomous vehicle with a land engine, comprising device 4 in the figure or the display system above.

Claims (10)

Method for controlling a display system (20) on board a vehicle (10), said display system (20) comprising a first display device (101) with a touch interface, a second display device ( 102) and a control device (103) associated with said first display device (101) and said second display device (102), said method comprising the following steps:
- display (51) of a set of graphical man-machine interfaces, called HMIs, on said first display device, said set of HMIs comprising a first HMI displayed on a first part of said first display device (101 ) and associated with a first interactive application (31) and a second HMI displayed on a second part of said first display device (101) and associated with a second interactive application (33);
- reception (52) of a first request for displaying a first graphic content associated with said first interactive application (31) on said second display device (102), said first request being received from a first part of said touch interface associated with said first part of said first display device (101) associated with said first interactive application (31);
- display (53) of said first graphic content on said second display device (102);
- control (54) of a first set of functions associated with said first graphic content via said first part of said tactile interface and a second set of functions associated with said first graphic content via said control device (103). A method according to claim 1, further comprising a step of modifying content of said first HMI displayed on said first portion of said first display device (101) when displaying said first graphic content on said second display device. display (102) for switching from original content to modified content comprising a set of graphical objects configured to control said first set of functions. A method according to claim 2, further comprising the following steps:
- reception of a second request to end display of said first graphic content on said second display device (102) from said first part of said touch interface;
- modification of the content of said first HMI displayed on said first part of said first display device following receipt of said second request to move from said modified content to said original content. A method according to claim 3, further comprising a step of displaying determined content on said second display device (102) in replacement of said first graphic content following receipt of said second request. Method according to claim 1 or 2, further comprising the following steps:
- reception of a third request to display a second graphic content associated with said second interactive application (33) on said second display device (102), said third request being received from a second part of said touch interface associated with said second part of said first display device (101) associated with said second interactive application (33);
- display of said second graphic content on a second part of said second display device (102);
- control of a third set of functions associated with said second graphic content via said second part of said touch interface of said first display device (101) and a fourth set of functions associated with said second graphic content via said control device ( 103). A method according to claim 5, further comprising distributing a display surface of said second display device (102) between said first graphic content and said second graphic content. Method according to one of claims 1 to 6, for which said set of HMIs displayed on said first display device comprises at least a third HMI. Computer program comprising instructions for implementing the method according to any one of the preceding claims, when these instructions are executed by a processor. Device (201) for controlling a display system on board a vehicle, said device (201) comprising a memory (41) associated with at least one processor (40) configured for implementing the steps of the method according to any of claims 1 to 7. Vehicle (10) comprising the device (201) according to claim 9.