Method and device for controlling a vehicle display system comprising a wireless charging system for a mobile device

Abstract

The present invention relates to a method and a device for controlling a display system of a vehicle (10) comprising a wireless charging system for a mobile device (101), called a WLC system (16), the display system comprising a touch screen (13). For this purpose, first data representative of a current operating state of the WLC system (16) are received. A representative indicator of the WLC system (15) is displayed in a first zone of the touch screen (13). Second data representative of a touch press on the indicator are received. The display of a graphic content comprising information representative of the WLC system (16) is controlled in such a way that a graphic representation of the graphic content is a function of the first data and the second data, the graphic content being displayed in a second zone of the touch screen (13) different from the first zone. Figure for abstract: Figure 1

Description

Title of the invention: Method and device for controlling a vehicle display system comprising a wireless charging system for a mobile device Technical field

[0001] The invention relates to methods and devices for controlling a display system of a vehicle, in particular but not exclusively a motor vehicle. The invention relates in particular to a method and a device for controlling the display of information relating to a wireless charging system, known as a WLC (Wireless Charge) system, of a vehicle. The invention also relates to a method and a device for assisting in driving a vehicle. Technological background

[0002] Some contemporary vehicles have several screens on board to display information useful to the driver for driving the vehicle as well as comfort information, such as, for example, information for interacting with the infotainment system, also called the IVI system (from the English "In-Vehicle Infotainment" or in French "Infodivertissement embargo"), of the vehicle.

[0003] Among these screens, it is known to embed one or more LCD (Liquid Crystal Display) type screens, for example TFT (Thin-Film Transistor) type, or OLED (Organic Light-Emitting Diode) type.

[0004] The integration of such screens makes it possible, for example, to control, via a graphical Human-Machine Interface (HMI) displayed on such screens, the operating status of the systems embedded in the vehicle, for example the AD AS systems (from the English “Advanced Driver-Assistance System” or in French “Advanced Driving Assistance System”).

[0005] The multiplication of systems embedded in the vehicle and the multiplication of means of command or control of these systems lead to a complexity of 1THM by which a user interacts with the embedded systems to control them, with in particular a multiplication of icons, displayed messages or command shortcuts whose control and management are consequently complicated for a user. The user experience is degraded and the attention of the driver of the vehicle can be reduced when different messages are displayed on the on-board screen(s), which reduces his attention and disrupts the control of the vehicle. by the driver.

[0006] For example, for vehicles equipped with a wireless charging system, called a WLC system (from the English "Wireless Charge"), also called an induction charging system, an indicator is displayed when a mobile device is being charged or when a fault in the system is detected. Such an indicator is often displayed in a part of a screen intended for the display of numerous indicators, making the display of the WLC indicator unclear. Furthermore, since such a WLC system is recently used in vehicles, many people do not know what it corresponds to.

[0007] Thus, when the driver of a vehicle asks about this WLC indicator or seeks to obtain information on the WLC system, for example on its operating status, the attention required to obtain the information sought leads to safety risks for the vehicle and other road users, the driver's attention being diverted from the road and control of the driving of the vehicle may then be degraded. Summary of the present invention

[0008] An object of the present invention is to solve at least one of the problems of the technological background described above.

[0009] Another object of the present invention is, for example, to improve the user experience with respect to a wireless charging system.

[0010] Another object of the present invention is to minimize the loss of attention of the driver and to improve the safety of the vehicle.

[0011] According to a first aspect, the present invention relates to a method for controlling a display system of a vehicle, the vehicle carrying a wireless charging system for a mobile device, called a WLC system, the display system comprising a touch screen, the method being implemented by a processor and comprising the following steps: - receiving first data representative of a current operating state of the WLC system from the WLC system; - display control of a witness representing the WLC system in a determined content of a human-machine interface, called HMI, displayed in a first zone of the touch screen; - reception of second data representative of a tactile press on the indicator; - control of display of graphic content comprising information representative of the WLC system, a graphic representation of the graphic content being a function of the first data and the second data, the graphic content being displayed in a second zone of the touch screen different from the first zone.

[0012] Direct use of the cookie associated with the WLC system to request the display of graphical content comprising information relating to the WLC system allows the driver to obtain information simply and on demand, by simply touching the indicator. This reduces the time spent searching for information and / or the effort required to understand what the indicator refers to. The driver is thus less distracted by searching for information and their attention on controlling the vehicle's trajectory is maximized, which improves the safety of the vehicle and other road users. All content is also displayed on a single screen, which facilitates access to information and also minimizes the time spent searching for information. This improves driver vigilance, as well as the safety of the vehicle and its passengers.

[0013] Centralizing controls on a single screen also eliminates the need for physical buttons to control the WLC system, thereby reducing vehicle design and manufacturing costs.

[0014] According to a variant, the graphical representation of the graphical content corresponds to: - a first graphical representation when the first data is representative of a current operating state of the WLC system corresponding to a first state representative of a current charge of the mobile device and when the second data is representative of a tactile press of a duration less than a threshold; - a second graphical representation when the first data is representative of a current operating state of the WLC system corresponding to a second state representative of a malfunction of the WLC system and when the second data is representative of a touch press of a duration less than the threshold, the second graphical representation of the graphical content being different from the first graphical representation of the graphical content; and - a third graphical representation when the first data is representative of a current operating state of the WLC system corresponding to the first state and when the second data is representative of a touch press of a duration greater than the threshold, the third graphical representation of the graphical content being different from the first graphical representation of the graphical content and the second graphical representation of the graphical content.

[0015] According to another variant, the indicator is displayed according to a first graphical representation when the first data is representative of a current operating state of the WLC system corresponding to the first state and the indicator is displayed according to a second graphical representation when the first data is representative of a current operating state of the WLC system corresponding to the second state, the second graphical representation of the indicator being different from the first graphical representation of the indicator.

[0016] According to another variant, the information is representative of: - a current charge state of a battery of the mobile device when the graphical content is according to the first graphical representation; - a fault detected by the WLC system when the graphic content is according to the second graphic representation; and - a current status of each parameter of a set of parameters of the WLC system when the graphical content is according to the third graphical representation.

[0017] According to an additional variant, the graphic content comprises a set of graphic objects each associated with a different parameter of the set of parameters, each graphic object of the set of graphic objects being configured to modify the current status of the parameter associated with each graphic object.

[0018] According to another variant, the method further comprises the following steps: - reception of third data representative of a touch press on a graphic object of the set of graphic objects; - transmission of third data representing a command to modify the current status of the parameter associated with the graphic object to the WLC system.

[0019] According to an additional variant, the set of parameters comprises: - a first WLC system activation / deactivation parameter; and - a second parameter for activating / deactivating a vehicle battery saving mode.

[0020] According to a second aspect, the present invention relates to a device for controlling a display system of 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.

[0021] According to a third 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 system as described above according to the third aspect of the present invention.

[0022] According to a fourth aspect, the present invention relates to a computer program which comprises instructions adapted for executing the steps of the method according to the first aspect of the present invention, in particular when the computer program is executed by at least one processor.

[0023] Such a computer program may use any programming language, and be in the form of source code, object code, or intermediate code between source code and object code, such as in a partially compiled form, or in any other desirable form.

[0024] According to a fifth aspect, the present invention relates to a computer-readable recording medium on which a program is recorded. computer system comprising instructions for carrying out the steps of the method according to the first aspect of the present invention.

[0025] On the one hand, the recording medium may 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 microelectronic circuit type ROM memory, or a magnetic recording means or a hard disk.

[0026] Furthermore, this recording medium may 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 hertzian radio or by self-directed laser beam or by other means. The computer program according to the present invention may in particular be downloaded from an Internet-type network.

[0027] Alternatively, the recording medium may be an integrated circuit in which the computer program is incorporated, the integrated circuit being adapted to perform or to be used in performing the method in question. Brief description of the figures

[0028] Other characteristics and advantages of the present invention will emerge from the description of the particular and non-limiting exemplary embodiments of the present invention below, with reference to the appended figures 1 to 8, in which:

[0029] [Fig-1] schematically illustrates a part of the passenger compartment of a vehicle, according to a particular embodiment of the present invention;

[0030] [Fig.2] schematically illustrates a display device of the vehicle of [Fig.l], according to a first particular and non-limiting example of embodiment of the present invention;

[0031] [Fig.3] schematically illustrates the display device of the vehicle of [Fig.l], according to a second particular and non-limiting example of embodiment of the present invention;

[0032] [Fig.4] schematically illustrates the display device of the vehicle of [Fig.l], according to a third particular and non-limiting embodiment of the present invention;

[0033] [Fig.5] schematically illustrates the display device of the vehicle of [Fig.l], according to a fourth particular and non-limiting example of embodiment of the present invention;

[0034] [Fig.6] schematically illustrates the display device of the vehicle of [Fig.l], according to a fifth particular and non-limiting example of embodiment of the present invention;

[0035] [Fig.7] illustrates a device configured to control a display system of the vehicle of [Fig.l], according to a particular and non-limiting exemplary embodiment of the present invention.

[0036] [Fig-8] illustrates a flowchart of the different steps of a method for controlling a display system of the vehicle of [Fig.l], according to a particular and non-limiting exemplary embodiment of the present invention. Description of examples of implementation

[0037] A method and a device for controlling a display system of a vehicle will now be described in the following with joint reference to Figures 1 to 8. The same elements are identified with the same reference signs throughout the description which follows.

[0038] The terms "first(s)", "second(s)" (or "first(s)", "second(s)"), etc. are used in this document by arbitrary convention to enable different elements (such as operations, means, etc.) implemented in the embodiments described below to be identified and distinguished. Such elements may be distinct or correspond to a single element, depending on the embodiment.

[0039] According to a particular and non-limiting example of embodiment of the present invention, the control of a display system on board a vehicle is for example implemented by one or more computers of the vehicle, for example via one or more processors.

[0040] For this purpose, first data representative of the current operating state of a WLC wireless charging system (also called induction charging system) equipping the vehicle are received, for example from the computer controlling the WLC system via a data bus. The display of a warning light representative of the WLC system is controlled so that this warning light is displayed in a determined content of a human-machine interface, called HMI, displayed in a first zone of a touch screen of the vehicle display system. The warning light corresponds for example to a symbol or a pictogram representing the WLC system, for example a pictogram representing a battery being charged or faulty. The warning light is for example displayed in a determined page of the HMI corresponding for example to the home screen or the default screen of the HMI.

[0041] Second data representative of a touch press on the indicator are received from the touch interface, for example when a user makes a touch press on the touch screen at the display location of the indicator.

[0042] Following receipt of the second data, the computer controls the display of graphic content comprising information relating to the WLC system (for example representative of the current operating state) in a second zone of the touch screen different from the first zone. The graphic representation of the graphic content (and ultimately the information included in this graphic content) is a function of the first data and the second data.

[0043] Such a method makes it possible to control, via a voluntary action, the display of a set of graphic contents comprising information relating to the WLC system.

[0044] [Fig. 1] schematically illustrates a part of the passenger compartment of a vehicle 10, according to a particular and non-limiting exemplary embodiment of the present invention.

[0045] The vehicle 10 corresponds for example to a vehicle with a thermal engine, with electric motor(s) or even a hybrid vehicle with a thermal engine and one or more electric motors. The vehicle 10 thus corresponds for example to a land vehicle, for example an automobile, a truck, a bus.

[0046] The vehicle 10 advantageously incorporates a display system comprising a screen 13 with a touch interface and a computer configured to control the display of content(s) of a graphical MMI on the touch screen 13. The computer corresponds for example to the computer of the infotainment system, called the IVI computer (from the English “In-Vehicle Infotainment” or in French “Infodivertissement embargo”) of the vehicle 10.

[0047] The touch screen 13 corresponds for example to a screen of the LCD type (from the English “Liquid Crystal Display” or in French “Display à cristals liquide”), for example of the TFT type (from the English “Thin-Film Transistor” or in French “Transistor en film mince”), or OLED type (from the English “Organic Light-Emitting Diode” or in French “Diode électroluminescente biologique”).

[0048] The touch screen 13 is configured to display content intended for the driver and passengers of the vehicle 10. The touch screen 13 is also configured to allow the driver and / or passengers of the vehicle to interact with one or more systems embedded in the vehicle via a human machine interface (HMI) displayed on the touch screen 13. For example, the screen 13 is configured to interact with the IVI system and / or a wireless charging system of the vehicle 10, called the WLC system.

[0049] According to a particular embodiment, the display system comprises one or more other screens, for example a screen of a device or system called a head-up display corresponding for example to a transparent or semi-transparent blade arranged in such a way that a driver seated in the seat 15 sees the content displayed or projected on the transparent blade when the driver is driving the vehicle 10. The display system comprises for example furthermore a display screen called a handset or dashboard and generally arranged in an area 12 behind the steering wheel 14 in the dashboard 11.

[0050] According to a particular embodiment, the display system comprising the touch screen 13 is for example provided or configured to reduce the number of screens present. in the vehicle 10, allowing for example the removal of the display screen(s) called the instrument panel or dashboard.

[0051] According to a particular embodiment, the vehicle 10 has one or more on-board systems each controlled by one or more computers. These computers, with the IVI computer, form for example a multiplexed architecture for the realization of different services useful for the proper functioning of the vehicle and for assisting the driver and / or the passengers of the vehicle in the control of the vehicle 10 via the control of the system(s) on board the vehicle 10.The computers communicate and exchange data with each other via one or more computer buses, for example a communication bus of the data bus type CAN (from the English "Controller Area Network" or in French "Réseau de contrôles"), CAN FD (from the English "Controller Area Network Flexible Data-Rate" or in French "Réseau de contrôles à débit de données flexible"), FlexRay (according to the ISO 17458 standard), LIN (from the English "Local Interconnect Network" or in French "Réseau interconnecté local") or Ethernet (according to the ISO / IEC 802-3 standard).

[0052] A system on board the vehicle 10 corresponds to a wireless charging system 16, called a WLC system (also called an induction charging system). Such a WLC system 16 corresponds to a station configured to receive a mobile device 101, for example a mobile communication device such as a smartphone or a smartwatch, to recharge the battery of this mobile device 101 by induction or wirelessly. For this purpose, the WLC system 16 comprises a flat surface (sometimes called an interface surface) provided to receive the mobile device 16 placed flat on this flat surface. The WLC system also comprises a transmitter (also called a transmitter) connected to a source of electrical energy, for example the battery of the vehicle 10. The transmitter is positioned under the flat surface receiving the mobile device 16.The transmitter advantageously comprises a coil generating an electromagnetic field which transports the energy to the receiver (integrated in the mobile device 16) positioned on the flat surface at a distance from the transmitter which is for example less than 40 mm so that the transfer of energy from the transmitter to the receiver is effective. The coil of the transmitter is arranged in a series resonant circuit, of the LC circuit or RLC circuit type, operating at a determined resonant frequency.

[0053] Such a transmitter is known to those skilled in the art, as is the technology for wireless energy transfer between a transmitter and a receiver. The wireless energy transfer technology is based on so-called induction coupling technology or so-called magnetic resonance technology.

[0054] The energy transfer implemented between the wireless charging system 101 and the mobile communication device positioned above this system is for example compliant with the Qi® standard published by the WPC (Wireless Power Consortium), for example in the document entitled “The Qi Wireless Power Transfer System / Power Class 0 Specification”, version 1.2.4 of February 2018.

[0055] According to a variant, the energy transfer complies with the “Rezence” standard developed and published by the A4WP (from the English “Alliance for Wireless Power” or in French “alliance pour la puissance sans fil”), which became Airfuel Alliance® in 2015.

[0056] A process for controlling an on-board display system in the vehicle 10 is advantageously implemented by one or more processors of the display system, for example by a computer of an on-board system of the vehicle 10 such as the IVI system or the navigation system or by a processor of the mobile communication device.

[0057] In a first operation of the process, first data representative of a current operating state of the WLC system 16 are received from the WLC system 16, for example from the computer controlling such a WLC system via one or more data buses of the on-board network connecting the computer implementing the process to the computer of the WLC system.

[0058] According to an alternative embodiment, the first data are received according to a wireless communication mode, the display system (for example the IVI computer) and the WLC system (for example the computer controlling the WLC system) being connected in wireless communication.

[0059] The operating state of the WLC system corresponds for example to one of the following states: - a first state according to which the WLC system is in operation with the mobile device 101 being charged; - a second condition in which the WLC system experiences a fault or malfunction, for example when a metal object other than a mobile object with a compatible battery is present in the charging area or when a component of the WLC system is faulty.

[0060] According to a variant, the operating state corresponds to a third state in which the WLC system is not activated, the WLC system being activated in the first state and in the second state.

[0061] In a second operation of the process, the display of a warning light representative of the WLC system 16 of the vehicle 10 is controlled in such a way that the warning light is displayed on the touch screen 13, in a first zone 211 of the touch screen 13, in a determined content of a human-machine interface, called HMI, which content is displayed on the touch screen 13.

[0062] The first zone 210 corresponds for example to an upper band of the screen. The first area 210 corresponds for example to an area known as the status bar, which is provided for the display of a set of indicators and information which remain displayed regardless of the content displayed in the rest of the touch screen 13, that is to say in a second part 212 of the screen located under the first part 211. The indicators displayed in the first area 211 include for example the wireless connection indicators (Wifi®, Bluetooth®, 4G and / or 5G) and the information displayed includes for example the time, the outside temperature, information on the air conditioning system of the vehicle 10, etc.

[0063] The content displayed in the second zone 212 comprises, for example, a set of information useful to the driver for ensuring control and supervision of the vehicle 10. The set of information comprises, for example, the instantaneous speed of the vehicle 10 when the latter is in a rolling or circulation phase, that is to say in motion, driven by the engine of the vehicle 10, a rev counter, for example the remaining autonomy (expressed for example in km), the distance traveled, a volume or level of fuel remaining in the tank when the vehicle 10 comprises a thermal engine, the charge level of the traction battery when the vehicle 10 has a traction battery on board, etc.

[0064] Figures 2 and 3 each illustrate a result of the display control of the indicator in the first zone 211 of the touch screen 13, according to particular and non-limiting exemplary embodiments.

[0065] [Fig.2] thus illustrates the indicator 21 according to a first graphical representation and [Fig.3] illustrates the indicator 31 according to a second graphical representation, the indicator 21 and the indicator 31 both being representative of the WLC system 16 but with a different graphical representation, which is a function of the first data received at the first operation and of the current operating state of the WLC system 16 indicated by the first data.

[0066] The indicator 21, 31 is displayed according to a first graphical representation ([Fig.2]) when the first data is representative of a current operating state of the WLC system corresponding to the first state and the indicator is displayed according to a second graphical representation ([Fig.3]) when the first data is representative of a current operating state of the WLC system corresponding to the second state, the second graphical representation of the indicator being different from the first graphical representation of the indicator.

[0067] When the WLC system is in the first state (i.e. when the WLC system is charging a battery of a mobile device placed on the charging area), the indicator corresponds to a pictogram 21 representing a battery with a lightning or electric arc type charging symbol in its center.

[0068] When the WLC system is in the second state (i.e., in disf operation or fault), the indicator corresponds to a pictogram 31 representing a battery with a danger symbol (for example an exclamation mark) in its center.

[0069] When the WLC system is in the third state (WLC system disabled), the indicator is not displayed on the touch screen 13.

[0070] A display control of a witness, of graphic content or of any graphic object (text, pictogram, icon, etc.) comprises a rendering of the graphic content or of the graphic object, such a rendering corresponding to a set of operations carried out by one or more processors on the pixels of one or more images of the graphic content to be displayed on the screen 13. For example, the rendering consists of associating with a set of pixels of an image pixel data (for example color data expressed in an RGB type space (from the English "Red, Green, Blue" or in French "rouge, vert, bleu")) associated with each graphic object.

[0071] The display control of the indicator 21, 31 thus comprises the transmission of control signals to the touch screen 13 to modify the values ​​associated with the pixels of the touch screen 13 at the location intended to display the indicator 21 (or any graphic object), that is to say at a determined position in the first zone 211.

[0072] The display of the indicator 21, 31 is triggered by the reception of the first ones indicating the state of the WLC system. Thus, at each change of state of the WLC system, the display of the indicator 21, 31 is adjusted so that the indicator 21, 31 representing the current state of the WLC system is displayed in the location provided on the touch screen 13.

[0073] In a third operation, second data representative of a tactile press 201 on the indicator 21 ([Fig.2]) or of a tactile press 301 on the indicator 31 ([Fig.3]) are received, following a tactile press 201, 301 of a user (for example the driver of the vehicle 10) on the indicator 21, 31.

[0074] A tactile press on the indicator 21, 31 sends information to the IVI computer so that the latter implements one or more functions associated with the command corresponding to the tactile press.

[0075] The second data representative of the touch-sensitive support are for example received via one or more data buses connecting the touch-sensitive interface of the screen (or a computer controlling such a touch-sensitive interface where appropriate) and the IVI computer.

[0076] Touch support corresponds for example to: - a short or brief tactile press according to which the duration of pressing on the indicator 21, 31 is less than a threshold duration (for example equal to 500 or 1000 ms); or - a long tactile press whereby the duration of the press on the indicator 21 is greater than the threshold duration (for example equal to 500 or 1000 ms).

[0077] As described below according to different particular embodiments, a support A short touch on the indicator 21 displayed according to the first graphic representation (i.e. when the WLC system is charging) triggers the implementation by the computer of a first action. A long touch press on the indicator 21 displayed according to the first graphic representation triggers the implementation by the computer of a second action. A short touch press on the indicator 31 displayed according to the second graphic representation (i.e. when the WLC system encounters a malfunction, problem or fault) triggers the implementation by the computer of a third action, a long press on the indicator 31 displayed according to the second graphic representation having no effect.

[0078] In a fourth operation of the process, the computer in charge of the process, for example the IVI computer, controls the display of a graphic content comprising a set of information representative of the WLC system, for example the current state of the WLC system, of the vehicle 10. The graphic representation of the graphic content is a function of the first data and the second data.

[0079] The display control of the graphic content is for example triggered by the reception of the second data.

[0080] The fourth operation comprises, for example, the transmission of a request by the IVI computer to the computer controlling the WLC system, via one or more data buses, to receive the information necessary for displaying the graphic content.

[0081] The graphic content belongs to a set of graphic contents with different graphic representations, particular examples of which are described below with reference to figures 4 to 6. The graphic content is displayed in a second zone 212 of the touch screen 13 different from the first zone 211 comprising the indicator 21, 31.

[0082] According to a particular and illustrative embodiment, the second zone is located in the center of the touch screen 13 or in the center of the second zone 212.

[0083] According to a particular example, the graphic content is for example displayed in a window occupying a part of the display area of ​​the screen 13 and included in the second area 212, this window corresponding for example to a contextual window, also called an intrusive or pop-up window (from the English “pop-up window”).

[0084] the graphic representation of the graphic content corresponds to: - a first graphic representation 41 illustrated in [Fig.4] when the first data are representative of a current operating state of the WLC system corresponding to the first state representative of a current charge of the mobile device 101 and when the second data are representative of a short tactile press, that is to say of a duration less than a threshold; - a second graphic representation 42 illustrated in [Fig. 5] when the first data are representative of a current operating state of the WLC system corresponding to the second state representative of a malfunction of the WLC system and when the second data are representative of a short touch press, the second graphic representation 42 of the graphic content being different from the first graphic representation 41 of the graphic content; and - a third graphic representation 43 illustrated in [Fig.6] when the first data are representative of a current operating state of the WLC system corresponding to the first state and when the second data are representative of a long touch press, that is to say of a duration greater than the threshold, the third graphic representation 43 of the graphic content being different from the first graphic representation 41 of the graphic content and from the second graphic representation 42 of the graphic content

[0085] As illustrated in [Fig.4], the graphical content according to the first graphical representation 41 comprises a text area 412 in which textual or graphical information is displayed on the current state of the WLC system to indicate to the driver or passengers of the vehicle 10 that the WLC system is currently charging a mobile device, the message being for example of the type “charging in progress”.

[0086] One or more additional pieces of information representative of a current charge state of the battery of the mobile device 16 are for example further displayed in the text zone 412, for example: - information indicating the current charge level of the battery of the mobile device 101, i.e. the charge level reached by the battery of the mobile device 101; and / or - information indicating the remaining charging time before the battery of the mobile device 101 is fully charged or recharged.

[0087] This additional information is obtained from the WLC system 16. The WLC system receives this information from the mobile device 101 according to a wireless communication mode provided in the energy transfer standard implemented. This additional information is for example transmitted by the battery management system, called the BMS system (from the English “Battery Management System”) of the mobile device 101 to the WLC system 16.

[0088] According to an alternative embodiment, the first graphic representation 41 further comprises a graphic object 411 corresponding to a pictogram representing the wireless charging function. Such a graphic object 411 represents, for example, an electric arc surrounded on either side (left and right) by a set of pa- theses.

[0089] As illustrated in [Fig. 5], the graphical content according to the second graphical representation 42 comprises a text area 422 in which textual or graphical information is displayed on the fault detected by the WLC system, which fault is responsible for the malfunctioning state of the WLC system, to indicate to the driver or passengers of the vehicle 10 that the WLC system is currently faulty. The message is for example of the type “Wireless charger not available”. An additional message indicating the fault detected or a possible cause of the fault and / or the action to be taken to eliminate the fault or the cause of the malfunction is for example further displayed in the text area 422, the message then being for example of the type: “Wireless charger not available: remove any object other than your telephone”.

[0090] According to an alternative embodiment, the second graphic representation 42 further comprises the graphic object 411.

[0091] As illustrated in [Fig.6], the graphic content according to the third graphic representation 43 comprises an area 432 in which a set of textual and / or graphic information 4321, 4322 is displayed.

[0092] Zone 432 comprises, for example, for each parameter of a set of parameters of the WLC system which can be adjusted by the driver via the touch interface of the touch screen 13: - a graphical object configured to control a modification of the current activation state of the parameter, such a graphical object corresponding for example to a radio button or a check box allowing to activate and deactivate a function of the WLC system associated with the parameter; and - a text describing the parameter or the function associated with the parameter.

[0093] The set of parameters includes for example: - a first WLC system activation / deactivation parameter to activate and deactivate the wireless charging function of the vehicle 10; and - a second parameter for activating / deactivating a saving mode of a vehicle battery to activate or deactivate the energy saving function of the vehicle battery 10: when this function is activated, the wireless charging is adjusted according to the current charge level of the vehicle battery 10, the wireless charging power of the WLC system being for example adapted to the current charge level of the vehicle battery 10, the wireless charging function of the WLC system being deactivated for example automatically when the charge level of the vehicle battery 10 falls below a threshold, the energy saving mode of the vehicle battery 10 making it possible to preserve the charge level of the vehicle battery 10, for example of the traction battery of an electric vehicle.

[0094] According to an alternative embodiment, the third graphic representation 43 further comprises the graphic object 411.

[0095] According to a particular embodiment of the process, the process further comprises the following operations when the graphical content is displayed according to the third graphical representation 43: - the reception of third data representative of a touch press on a graphic object 4321 or 4322 of the set of graphic objects displayed in the zone 432; - transmission of third data representing a command to modify the current status of the parameter associated with the graphic object 4321 or 4322 to the WLC system.

[0096] Thus, a tactile press, for example a short press, on the radio button 4321 makes it possible to change the activation state from “activated” to “deactivated” or conversely from “deactivated” to “activated” of the WLC system. In the same way, a tactile press, for example a short press, on the radio button 4322 makes it possible to change the activation state from “activated” to “deactivated” or conversely from “deactivated” to “activated” of the energy saving mode of the battery of the vehicle 10 of the WLC system.

[0097] A long touch press on the indicator 21 when the current operating state of the WLC system corresponds to the first state (charging in progress) makes it possible to access content intended to configure the WLC system and modify one or more parameters of the WLC system, for example to control the activation and deactivation of determined functions such as the activation / deactivation of the wireless charging function and / or the activation / deactivation of the energy saving function of the battery of the vehicle 10.

[0098] The end of the display of the graphic content according to the first graphic representation 41, the second graphic representation 42 and the third graphic representation 43 is controlled by the computer in charge of the process automatically or following an action of the driver or a passenger of the vehicle 10.

[0099] The end of the display of the graphic content is thus, for example, automatically controlled after a determined display duration without any tactile action by the driver or any other user with this graphic content, for example after 5, 10, 15 seconds of display. According to a variant, the end of the display of the graphic content is implemented when the driver makes a brief tactile press on the screen 13 outside the display area of ​​the graphic content.

[0100] Such a process thus makes it possible to do away with any physical button for controlling the WLC system and allows more intuitive control of the HMI associated with the WLC system than HMIs requiring navigation through different pages or menus before arriving at the content specific to the WLC system, via simple touch presses on the indicator 21, 31 and / or on the different graphic contents displayed.

[0101] [Fig. 7] schematically illustrates a device 7 configured for controlling a display system of a vehicle, for example the vehicle 10, and / or for controlling functions implemented by a wireless charging system, called a WLC system, of the vehicle 10, according to particular and non-limiting exemplary embodiments of the present invention. The device 7 corresponds for example to a device on board the vehicle 10, for example a computer.

[0102] The device 7 is for example configured for the implementation of the operations described with regard to figures 1 to 6 and / or the steps of the method described with regard to [Fig.8]. Examples of such a device 7 include, but are not limited to, on-board electronic equipment such as an on-board computer of a vehicle, an electronic calculator such as an ECU (“Electronic Control Unit”), a smartphone, a tablet, a laptop. The elements of the device 7, individually or in combination, can be integrated in a single integrated circuit, in several integrated circuits, and / or in discrete components. The device 7 can be produced in the form of electronic circuits or software (or computer) modules or even a combination of electronic circuits and software modules.

[0103] The device 7 comprises one (or more) processor(s) 70 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 7. The processor 70 may include integrated memory, an input / output interface, and various circuits known to those skilled in the art. The device 7 further comprises at least one memory 71 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.

[0104] The computer code of the embedded software(s) comprising the instructions to be loaded and executed by the processor is for example stored in the memory 71.

[0105] According to various particular and non-limiting embodiments, the device 7 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 communication bus or through dedicated input / output ports.

[0106] According to a particular and non-limiting exemplary embodiment, the device 7 comprises a block 72 of interface elements for communicating with external devices. The interface elements of the block 72 comprise one or more of the following interfaces: - RF radio frequency interface, for example Wi-Fi® type (according to IEEE 802.11), for example in the 2.4 or 5 GHz frequency bands, or Bluetooth® type (according to IEEE 802.15.1), in the 2.4 GHz frequency band, or Sigfox type using UBN (Ultra Narrow Band) radio technology, or LoRa in the 868 MHz frequency band, LTE (Long-Term Evolution), LTE-Advanced; - USB interface (from the English “Universal Serial Bus” or “Universal Serial Bus” in French); - HDMI interface (from the English “High Definition Multimedia Interface” or “High Definition Multimedia Interface” in French); - LIN interface (from the English “Local Interconnect Network”).

[0107] According to another particular and non-limiting exemplary embodiment, the device 7 comprises a communication interface 73 which makes it possible to establish communication with other devices (such as other computers of the on-board system) via a communication channel 730. The communication interface 73 corresponds for example to a transmitter configured to transmit and receive information and / or data via the communication channel 730. The communication interface 73 corresponds for example to a wired network of the CAN (Controller Area Network) type, CAN FD (Controller Area Network Flexible Data-Rate), FlexRay (standardized by the ISO 17458 standard) or Ethernet (standardized by the ISO / IEC 802-3 standard).

[0108] According to a particular and non-limiting exemplary embodiment, the device 7 can provide output signals to one or more external devices, such as a display screen 740, touch-sensitive or not, one or more speakers 750 and / or other peripherals 760 (projection system) via output interfaces 74, 75 and 76 respectively. According to a variant, one or other of the external devices is integrated into the device 7.

[0109] [Fig. 8] illustrates a flowchart of the different steps of a method for controlling a display system on board a vehicle, for example 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 7 of [Fig. 7].

[0110] In a first step 81, first data representative of a current operating state of the WLC system are received from the WLC system.

[0111] In a second step 82, the display of a witness representative of the WLC system of the vehicle is controlled so that this indicator light is displayed in a specific content of a human-machine interface, called HMI, displayed in a first zone of the touch screen.

[0112] In a third step 83, second data representative of a tactile press on the indicator are received.

[0113] In a fourth step 84, the display of graphical content comprising information representative of the WLC system is controlled so that the graphical content is displayed in a second zone of the touch screen different from the first zone, a graphical representation of the graphical content being a function of the first data and the second data.

[0114] According to a variant, the variants and examples of the operations described in relation to one of figures 1 to 6 apply to the steps of the method of [Fig.8].

[0115] Of course, the present invention is not limited to the exemplary embodiments described above but extends to a method for displaying witnesses and graphic contents representative of a WLC system which would include secondary steps without thereby departing from the scope of the present invention. The same would apply to a device configured for implementing such a method. The invention also relates to a method and a device for controlling or monitoring a WLC system.

[0116] The present invention also relates to a vehicle, for example an automobile or more generally an autonomous land-based motor vehicle, comprising the device 7 of [Fig.7] or a display system comprising the device 7 of [Fig.7] connected in communication to a touch screen 13.

Claims

Claims

1. Method for controlling a display system of a vehicle (10), said vehicle (10) carrying a wireless charging system for a mobile device (101), called WLC system (16), said display system comprising a touch screen (13), said method being implemented by a processor and comprising the following steps: - receiving (81) first data representative of a current operating state of said WLC system (16) from said WLC system (16); - control (82) of display of an indicator (21, 31) representative of said WLC system (16) in a determined content of a human-machine interface, called HMI, displayed in a first zone (211) of said touch screen (13); - reception (83) of second data representative of a tactile press (201, 301) on said indicator (21, 31); - control (84) of display of graphic content comprising information representative of said WLC system, a graphic representation of said graphic content being a function of said first data and said second data, said graphic content being displayed in a second zone (212) of said touch screen (13) different from said first zone (211).

2. Method according to claim 1, for which the graphical representation of said graphical content corresponds to: - a first graphical representation (41) when said first data are representative of a current operating state of said WLC system corresponding to a first state representative of a current charge of said mobile device and when said second data are representative of a tactile press (201) of a duration less than a threshold; - a second graphic representation (42) when said first data are representative of a current operating state of said WLC system corresponding to a second state representative of a malfunction of said WLC system and when said second data are representative of a touch press (301) of a duration less than said threshold, the second graphic representation (42) of said graphic content being different from the first graphic representation (41) of said graphic content; and - a third graphic representation (43) when said first data are representative of a current operating state of said WLC system corresponding to said first state and when said second data are representative of a touch press (201) of a duration greater than said threshold, the third graphic representation (43) of said graphic content being different from the first graphic representation (41) of said graphic content and from the second graphic representation (42) of said graphic content.

3. The method of claim 1 or 2, wherein said indicator (21) is displayed according to a first graphical representation when said first data is representative of a current operating state of said WLC system corresponding to said first state and said indicator (31) is displayed according to a second graphical representation when said first data is representative of a current operating state of said WLC system corresponding to said second state, the second graphical representation of said indicator being different from the first graphical representation of said indicator.

4. Method according to claim 2 or 3, for which said information is representative of: - a current charge state of a battery of said mobile device (101) when said graphical content is according to said first graphical representation (41); - a fault detected by said WLC system when said graphical content is according to said second graphical representation (42); and - a current status of each parameter of a set of parameters of said WLC system when said graphical content is according to said third graphical representation (43).

5. The method of claim 4, wherein said graphical content according to said third graphical representation (43) comprises a set of graphical objects (4321, 4322) each associated with a different parameter of said set of parameters, each graphical object of said set of graphical objects (4321, 4322) being configured to modify the current status of the parameter associated with said each graphical object.

6. Method according to claim 5, further comprising the following steps: - receiving third data representative of a touch press on a graphic object of said set of graphic objects (4321, 4322); - transmission of third data representing a command to modify the current status of the parameter associated with said graphic object to said WLC system.

7. Method according to claim 5 or 6, for which said set of parameters comprises: - a first parameter for activating / deactivating said WLC system; and - a second parameter for activating / deactivating a saving mode of a battery of said vehicle (10).

8. Computer program comprising instructions for implementing the method according to any one of claims 1 to 7, when these instructions are executed by at least one processor.

9. Device (7) for controlling a display system of a vehicle (10), said device (7) comprising a memory (71) associated with at least one processor (70) configured for implementing the steps of the method according to any one of claims 1 to 7.

10. Vehicle (10) comprising the device (7) according to claim 9.

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