Method and device for controlling a vehicle display system comprising a headlight status indicator system with glare alert on the ADAS page

Abstract

The present invention relates to a method and device for controlling a display system for a first vehicle comprising a touchscreen (20), the method being implemented by a processor. To this end, the display of graphic content (36) comprising a first graphic object (30) representing the presence of a first vehicle is controlled. The first data representing the operating state of the first vehicle's headlights is received. A second graphic object (32) representing a different operating state of the first vehicle's headlights, based on the first data, is displayed such that the first graphic object (30) includes the second graphic object (32). Figure 3 (for the abstract)

Description

Title of the invention: Method and device for controlling a vehicle display system comprising a headlight status indicator system with glare alert on page AD AS. 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 concerning the headlight lighting modes. The invention further relates to a method and a device for controlling the display of information relating both to the presence of another vehicle and to the headlight lighting modes. The invention also relates to a method and a device for assisting in the driving of a vehicle. Technological background

[0002] Contemporary vehicles include, for some of them, several screens to display information useful to the driver for driving the vehicle as well as comfort information, such as, for example, information to interact with the infotainment system, also called IVI system (from the English "In-Vehicle Infotainment" or in French "Infodivertissement étoilé"), of the vehicle.

[0003] Among these screens, it is known to include one or more LCD type screens (from the English "Liquid Crystal Display" or in French "Affichage à cristals liquide"), for example of type TFT (from the English "Thin-Film Transistor" or in French "Transistor en film mince"), or OLED (from the English "Organic Light-Emitting Diode" or in French "Diode électroluminescente organique").

[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 on board the vehicle, for example AD AS systems (from the English "Advanced Driver-Assistance System" or in French "Système d'aide à la conduite avancé").

[0005] In the field of advanced driver assistance systems, various technologies have been developed to improve driver safety and comfort. Examples include lane keeping assist, which detects road markings and actively keeps the vehicle centered in its lane, alerting the driver or adjusting the steering in the event of unintentional drifting, or Furthermore, blind spot detection uses sensors to monitor areas outside the driver's field of vision and issues an alert when a vehicle is detected there, which is particularly useful when changing lanes.

[0006] At night, the need for driver assistance is even greater, and the transmission of relevant information to the driver in a clear and effective manner is essential in order to improve the driving experience and reduce road accidents. Numerous nighttime driver assistance systems exist, such as night vision systems that improve nighttime visibility beyond the range of headlights through thermography or other technologies.

[0007] Glare during night driving is a significant problem that compromises driver safety and comfort. This form of visual distraction occurs when an intense light source, such as the headlights of oncoming or following vehicles, interferes with the driver's vision. The sudden impact of bright light in the dark can lead to a temporary reduction in visibility, a prolonged reaction time, and an altered perception of distances and road details. Glare is particularly dangerous because it can obscure pedestrians, animals, or obstacles on the road, thereby increasing the risk of accidents. Furthermore, repeated exposure to high levels of light can lead to eye strain, headaches, and general discomfort, reducing the driver's concentration and ability to maintain safe and controlled driving.Older drivers are even more susceptible to the effects of glare due to the natural decline in visual acuity with age. Therefore, glare poses a major challenge to nighttime road safety, requiring the development of appropriate technologies.

[0008] Certain systems are particularly suited to reducing glare and improving driver visibility and comfort. Various solutions have already been developed, including anti-glare rearview mirrors that use electrochromatic technology to automatically darken in response to intense light, and adaptive headlights optimized to minimize glare for other drivers by adjusting the direction and intensity of the light beam according to driving conditions.

[0009] However, these active (automatic) assistance systems are mainly fitted to so-called "high-end" vehicles and therefore cannot benefit the entire vehicle fleet.

[0010] In recent vehicles, particularly those in the low and mid-range categories, the dashboard indicators relating to the status of the headlights and headlight illumination This typically includes illuminated icons and colored indicators that inform the driver of the current headlight status. A green or blue headlight icon is usually displayed to indicate that the low beams (main headlights) are on, while an additional icon, often depicted as a headlight with horizontal lines, signals that the high beams are on. Some vehicles also have indicators for daytime running lights and fog lights, illustrated by separate, specific symbols. This signage is crucial for ensuring the driver is aware of their lighting status, thus contributing to better visibility and increased safety on the road.

[0011] The indicators for the operating status and lighting of headlights on the dashboards of modern cars, while useful, present several real and potential problems. A major concern is the insufficient standardization of the symbols and colors used, which can lead to confusion for drivers, particularly when switching between vehicles. Drivers may not immediately recognize the icons or may misinterpret their meaning, delaying appropriate lighting decisions. Furthermore, the brightness or size of the indicators on the dashboard may be inadequate, making the symbols difficult to read under certain lighting conditions or for drivers with visual impairments.Each of these drawbacks, taken together or separately, can divert the driver's attention from the road, contributing to distracted and potentially dangerous driving, thus increasing the risk of accidents. Summary of the present invention

[0012] One object of the present invention is to solve at least one of the problems of the technological background described above.

[0013] Another object of the present invention is, for example, to assist a vehicle driver in making decisions at night when approaching another vehicle.

[0014] Another object of the present invention is to improve the readability and intuitiveness of the signage indicating the operating status of the front headlight lighting in a vehicle.

[0015] Another object of this invention is to obtain an anti-glare system that is adaptable and applicable to different levels of vehicle range.

[0016] Another object of the invention is to improve the signage, identification and characterization of a malfunction in the lighting of the front headlights of a vehicle.

[0017] The invention also aims to provide an enhanced security solution at a more reasonable cost.

[0018] Finally, the invention aims to minimize the driver's loss of attention by providing a clear and non-distracting interface, allowing the driver to remain focused on the road while being aware of the lighting conditions and the potential glare caused to other road users.

[0019] According to a first aspect, the present invention relates to a method for controlling a display system of a first vehicle comprising headlights, the display system comprising a touch screen, the method being implemented by a processor and comprising the following steps: - control of display of graphic content, displayed in an area of ​​the screen, including a first graphic object representing the presence of the first vehicle; - receipt of initial data representative of the operating status of the front headlights of the first vehicle; - display control of a second graphic object, displayed in the screen area, representing an operating state of the front headlights of the first vehicle; in which a graphical representation of the second graphical object is a function of the first data; and in which the first graphical object includes the second graphical object (X).

[0020] The use of combined graphic objects representing the presence of the vehicle and the operating status of the front headlights of a vehicle allows the driver to immediately understand whether the headlights are on, and in particular, in what lighting mode they are in, thanks to clear and understandable visual indicators.

[0021] According to one variant, the graphical representation of the second graphical object comprises: - a first representation of the operating state of the front headlights in dipped beam mode, when the first data indicates that the dipped beam headlights of the first vehicle are on; - a second representation of the operating state of the front headlights in high beam mode, when the first data indicates that the high beams of the first vehicle are on; - a third representation of a state of operation of the front headlights in off mode, when the first data indicates that the high beams of the first vehicle are off.

[0022] The use of graphic objects representing the lighting mode in which the vehicle's headlights are located helps to prevent situations where the headlights are not used optimally, such as forgetting to turn on the low or high beams, or their misuse, which can significantly reduce the risk of accidents due to inadequate lighting and poor visibility.

[0023] According to another embodiment, the process according to the invention comprises the following steps: - receipt of second data indicating a malfunction of at least one of the front headlights of the first vehicle; - display control of a fourth graphical representation of the second graphical object representing said malfunction, in particular, a lighting malfunction.

[0024] By providing accurate detection and warning in the event of headlight failure, the driver can take corrective action quickly to avoid driving with inadequate lighting, which could endanger his safety and that of other road users.

[0025] According to another variant, the fourth graphical representation (X) of said second graphical object (X) is, in addition, representative of a location of said malfunction.

[0026] According to another variant, the representation of a location of the malfunction is associated with one of the following data: - data representative of a malfunction of one of the front right or left headlights; - data representative of a state of malfunction of both front headlights, right and left.

[0027] According to another variant, the process comprises the following steps: - reception of third data representing a touch press on the fourth graphic representation of the second graphic object; - display control of a third graphic object containing information associated with the malfunction, displayed in an area of ​​the screen. The display of the third graphic object can be in the same area of ​​the screen as the previous graphic objects, or preferably, in a separate area of ​​the screen. The display of the third graphic object can also be contained within the first and / or second graphic object.

[0028] By directly pressing on the graphic object representing the malfunction, the user can easily and immediately become aware not only of the existence of a malfunction but also of its nature, and take the necessary measures more quickly and efficiently.

[0029] According to yet another variant, the process of the invention comprises the following steps: - receiving fourth data representing the presence of a second vehicle in front of the first vehicle according to a direction of travel of the first vehicle; - display control of a fourth graphic object, representing the presence of the second vehicle, and displayed in the same area of ​​the screen in front of the first graphic object according to a direction of travel of the first vehicle.

[0030] According to another variant, the method includes a display control step of a fifth graphic object representing a glare risk warning when the fourth graphic object and the second representation of a front headlight operating state are simultaneously displayed, said fifth graphic object being displayed in the same area of ​​the screen.

[0031] The present invention therefore also helps a driver make decisions at night when approaching another vehicle. The invention allows the driver to quickly recognize the presence of other vehicles and understand the distance between them thanks to an improved signaling system integrated into the anti-glare system. This facilitates crucial safety decisions, such as adjusting speed or changing the direction of headlights, to avoid and / or reduce glare for other drivers, thus improving nighttime safety for all road users.

[0032] According to a further embodiment, the fifth graphic object is a flashing signal, with or without an audible signal, and is displayed superimposed on said second and / or fourth graphic objects. The signal may flash and / or change color and / or be associated with an audible signal, but must in any case attract the driver's attention without significantly distracting them from driving.

[0033] According to yet another variant the fifth graphic object comprises the second graphic object and / or the fourth graphic object.

[0034] According to a second aspect, the present invention relates to a computer program which includes instructions adapted for the execution of the steps of the process according to the first aspect of the present invention, in particular when the computer program is executed by at least one processor.

[0035] Such a computer program may use any programming language, and be in the form of source code, object code, or an intermediate code between source code and object code, such as in a partially compiled form, or in any other desirable form.

[0036] According to a third aspect, the present invention relates to a control device for a vehicle display system, the device comprising a memory associated with a processor configured for the implementation of the steps of the process according to the first aspect of the present invention.

[0037] 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 third aspect of the present invention.

[0038] According to a fifth aspect, the present invention relates to a computer-readable recording medium on which is recorded a computer program comprising instructions for carrying out the steps of the process according to the first aspect of the present invention.

[0039] On the one hand, the recording medium can be any entity or device capable of storing the program. For example, the medium can include a storage means, such as a ROM, a CD-ROM or a microelectronic circuit-type ROM, or a magnetic recording means or a hard disk drive.

[0040] 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 transmitted via an electrical or optical cable, by conventional or radio frequency, by self-directing laser beam, or by other means. The computer program according to the present invention can, in particular, be downloaded from an Internet-type network.

[0041] 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 the execution of the process in question.

[0042] The invention minimizes driver distraction by providing a clear interface, allowing the driver to remain focused on the road while being informed of lighting conditions and potential glare for other road users. This reduces the risk of dashboard distractions and allows the driver to maintain sustained attention to the road environment, thereby improving overall driving safety.

[0043] By offering a simple, intuitive and readable solution, and by reducing the complexity of integration, the invention also makes anti-glare systems more financially accessible for manufacturers and, consequently, for consumers, contributing to a wider adoption of these vital safety devices. Brief description of the figures

[0044] Other features and advantages of the present invention will become apparent from the description of the particular and non-limiting embodiments of the present invention below, with reference to the attached Figures 1 to 11, in which:

[0045] [Fig.1] schematically illustrates a vehicle comprising front headlights, according to a particular embodiment of the present invention;

[0046] [Fig.2] schematically illustrates part of the passenger compartment of the vehicle in [Fig.1], according to a particular embodiment of the present invention;

[0047] [Fig.3] schematically illustrates a display device for the vehicle of [Fig.1], according to a first particular and non-limiting example of the present invention;

[0048] [Fig.4] schematically illustrates the display device of the vehicle in [Fig.1], according to a second particular and non-limiting embodiment of the present invention;

[0049] [Fig.5] schematically illustrates the display device of the vehicle in [Fig.1], according to a third particular and non-limiting embodiment of the present invention;

[0050] [Fig.6] schematically illustrates the display device of the vehicle in [Fig.1], according to a fourth particular and non-limiting embodiment of the present invention;

[0051] [Fig.7] schematically illustrates the display device of the vehicle in [Fig.1], according to a fifth particular and non-limiting embodiment of the present invention;

[0052] [Fig.8] schematically illustrates the display device of the vehicle in [Fig.1], according to a sixth particular and non-limiting embodiment of the present invention;

[0053] [Fig.9] illustrates a device configured to control a display system of the vehicle of [Fig.1], according to a particular and non-limiting embodiment of the present invention.

[0054] [Fig. 10] illustrates a flowchart of the different stages of a process for controlling a vehicle display system of [Fig.1], according to a particular and non-limiting embodiment of the present invention.

[0055] [Fig. 11] illustrates a flowchart of the different stages of a process for controlling a vehicle display system of [Fig.1], according to another particular and non-limiting embodiment of the present invention. Description of examples of achievements

[0056] A method and a control device for a vehicle display system will now be described in what follows with joint reference to Figures 1 to 11. The same elements are identified with the same reference signs throughout the following description.

[0057] The terms "first," "second" (or "firsts," "seconds"), etc., are used in this document by arbitrary convention to allow for the identification and distinction of different elements (such as operations, means, etc.) implemented in the embodiments described below. Such elements may be distinct or correspond to a single element, depending on the embodiment.

[0058] According to a particular and non-limiting embodiment of the present invention, the control of a display system embedded in a vehicle is implemented, for example, by one or more vehicle computers, for example via one or more processors. The vehicle is further capable of generating a visual representation of itself in a portion of a screen located in the vehicle's passenger compartment.

[0059] Since the display of the operating status of the front headlights of current vehicles is quite rudimentary, particularly on entry-level or mid-range vehicles, it is desirable to be able to improve the user's driving experience by offering a simultaneous and combined display of their vehicle and the operating status of both front lights (lights off, dipped or main beam lights on, malfunction of one or both headlights, etc.).

[0060] To this end, the display of a representation of a first vehicle is controlled so that this representation is displayed in a graphic content area of ​​a touchscreen of the vehicle's display system. Initial data representing the operating state of the first vehicle's headlights are received, for example, from a sensor or switch connected to the electronic management system via an electronic control unit responsible for managing the vehicle's lighting and / or dashboard, and displayed on said screen area where the vehicle representation is located in combination with the vehicle representation.When a malfunction occurs, the corresponding data is received and the display of a graphical report is controlled to indicate the location of the malfunction (front left headlight, front right headlight, or both) and allow the user to interact, if desired, particularly by touch, with the graphical report in order to obtain more precise information concerning the fault and, possibly, a protocol for resolving the detected problem.

[0061] Fig. 1 schematically illustrates a first vehicle 10 in side view 1 and front view 11, according to a particular and non-limiting embodiment of the present invention.

[0062] The first vehicle 10 corresponds, for example, to a vehicle with an internal combustion engine, with electric motor(s), or even a hybrid vehicle with an internal combustion engine and one or more electric motors. Vehicle 10 thus corresponds, for example, to a land vehicle, such as a car, a truck, or a bus.

[0063] The first vehicle 10 includes front headlights (12) which may consist of several lights (low beam, high beam, fog light, etc.) positioned, grouped or separated, at different locations on the front of the vehicle

[0064] Fig. 2 schematically illustrates a part of the passenger compartment of vehicle 10, according to a particular and non-limiting embodiment of the present invention.

[0065] The vehicle 10 advantageously incorporates a display system comprising a touchscreen 20 and a computer configured to control the display of content(s) from a graphic HMI on the touchscreen 20. The computer corresponds, for example, to the computer of the infotainment system, known as the IVI computer (from the English "In-Vehicle Infotainment" or in French "Infodivertissement étoilé") of the vehicle 10.

[0066] The touch screen 20 corresponds for example to an LCD type screen (from the English "Liquid Crystal Display" or in French "Affichage à cristals liquide"), for example of type TFT (from the English "Thin-Film Transistor" or in French "Transistor en film mince"), or OLED (from the English "Organic Light-Emitting Diode" or in French "Diode électroluminescente organique").

[0067] The touchscreen 20 is configured to display content for the driver and passengers of the vehicle 10. The touchscreen 20 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 touchscreen 20. For example, the screen 20 is configured to interact with the advanced driver assistance system (ADAS) of the vehicle 10.

[0068] According to a particular embodiment, the display system includes 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 sitting in the seat 26 sees the content displayed or projected onto the transparent blade when the driver is driving the vehicle 10. The display system further includes, for example, a display screen called a combination or instrument panel and generally arranged in an area 24 behind the steering wheel 28 in the dashboard 22.

[0069] According to a particular embodiment, the display system including the touch screen 20 is for example provided or configured to reduce the number of screens present in the vehicle 10, making it possible for example to remove the display screen(s) called instrument cluster or instrument panel.

[0070] The vehicle display system 10 is connected in communication with the AD AS driving assistance system of the vehicle 10, for example the computer in charge of the display system is connected in communication to the computer in charge of the driving assistance system via one or more data buses of the vehicle 10's on-board network.

[0071] A control process for an on-board display system in the vehicle 10 is advantageously implemented by one or more processors of the display system, for example by one or more processors of a vehicle computer 10 such as the computer of the infotainment system, called the IVI computer (from the English "In-Vehicle Infotainment" or in French "Infodivertissement parmi").

[0072] In a first operation of the process, the display of graphic content 36 comprising a first graphic object 30 representing a first vehicle 10, for example the driver's vehicle equipped with a device according to the present invention, is controlled in such a way that the graphic object is displayed on the touch screen 20, in an area 34 of the touch screen 20, as illustrated in [Fig.3] according to a particular embodiment.

[0073] Zone 34 advantageously corresponds to an upper band 341 of the screen in "mini-view" mode. In this configuration, the content displayed in the lower zone 342 includes, for example, a set of information useful to the driver for controlling and monitoring the vehicle 10. This set of information includes, for example, the instantaneous speed of the vehicle 10 when it is in a driving or circulation phase, i.e., in motion, driven by the engine of the vehicle 10, a tachometer, for example the remaining range (expressed, for example, in km), the distance traveled, the volume or level of fuel remaining in the tank when the vehicle 10 has an internal combustion engine, the charge level of the traction battery when the vehicle 10 has a traction battery, the navigation system map, infotainment system information, etc.

[0074] A display control of graphic content or any graphic object (text, pictogram, icon, etc.) includes a rendering of the graphic content or graphic object, such rendering corresponding to a set of operations performed by one or more processors on the pixels of one or more images of the graphic content to be displayed on the screen 20. For example, rendering consists of associating to a set of pixels of an image pixel data (for example color data expressed in an RGB (Red, Green, Blue) type space) associated with each graphic object.

[0075] The display control of a graphic content 36 comprising a first graphic object 30 thus includes the transmission of control signals to the touch screen 20 to modify the values ​​associated with the pixels of the touch screen 20 at the location intended to display the graphic object 30 (or any graphic object), i.e. at a determined position in the area 34.

[0076] Zone 34 can also just as advantageously correspond to a main display area of ​​screen 20, in the form of a "widget", for example in place of the display of the navigation or infotainment system.

[0077] Fig. 3 illustrates a particular embodiment of the invention in which area 34 corresponds to a main display area of ​​screen 20, simply to improve the readability and clarity of the graphic representation.

[0078] In a subsequent operation, first data representative of an operating state of the front headlights 12 of the vehicle 10 are received, for example, from a BCM computer (in English, "Body Control Module or BCM"), which also manages the lighting state of the front headlights of a vehicle, in association (integration) or not with an advanced driver assistance system (ADAS) depending on the vehicle.

[0079] The BCM is an electronic control unit that controls and monitors various electrical and electronic functions in the vehicle, such as, in particular, interior and exterior lighting. Specifically regarding headlights, the BCM receives signals from the headlight switch (located on the dashboard or steering column), instructing the driver to set the headlights to the on, off, low beam, or high beam position. The BCM then activates or deactivates the headlights accordingly. It can also adjust the headlight intensity in certain systems equipped with adaptive lighting functions.

[0080] In addition, the BCM works in conjunction with other vehicle modules, particularly those of the ADAS system, including the direction and intensity settings for adaptive or directional headlight systems. It can also signal headlight failures or malfunctions to the driver via the instrument panel.

[0081] An advanced driver assistance system (ADAS) for motor vehicles comprises an integrated set of sensor modules, including, but not limited to, millimeter-wave radars, optical cameras, lidars, and ultrasonic sensors, configured to continuously monitor the vehicle's surrounding environment. These sensor modules are strategically positioned at various locations on the vehicle's chassis to provide omnidirectional coverage. The core of the system is an electronic control unit (ECU) with advanced data processing capabilities, capable of interpreting the signals from the sensor modules.The ECU executes image processing, data fusion and artificial intelligence algorithms to analyze sensor data, identify potential objects, assess collision risks, and detect road markers such as lane lines and traffic signs.

[0082] In addition, the AD AS system includes an intuitive human-machine interface (HMI), displaying real-time information and alerts on the vehicle's dashboard or other dedicated display devices. The HMI allows the driver to configure system settings, view warnings and receive tactile or audible guidance for navigation and trajectory correction.

[0083] The display of a second graphic object 32 is then controlled in such a way that the graphic object is displayed on the touch screen 20 in the same display area 34 as the graphic object 30 and that the first graphic object 30 includes the second graphic object 32. The graphic content 36 also includes the second graphic object 32.

[0084] According to a particular and non-limiting embodiment, the contents, objects and graphic representations described herein are displayed on a page of the AD AS system of vehicle 10.

[0085] By "the first graphic object 30 includes the second graphic object 32" it is meant that the two objects are sufficiently close to create a direct visual link between them. The two objects may partially overlap or be separated by a space of suitable dimensions so as to maintain direct visual interaction between the objects for the driver. Typically, a partial overlap of at least about one-tenth (1 / 10) and at most about one-half (1 / 2) of the surface area of ​​either object, or a space of dimensions equivalent to at least one-tenth and at most one-half the length of the object, is suitable. This definition also applies to any content, representation, or graphic object that includes another content, representation, or graphic object.

[0086] The second graphic object 32 represents the operating state of each of the front headlights 12 of the vehicle 10. The representation of the graphic object 32 varies according to the first data received.

[0087] The display of the graphic object 30 is triggered by the reception of the first data indicating the operating state of the front lights 12. Thus, at each change in the operating state of the front lights, the display of the graphic object 30 is adjusted so that the graphic representation of the graphic object 30 represents the operating state of the front lights 12 of the vehicle 10 in the location provided on the touch screen 20.

[0088] According to one embodiment, the graphical representation of the second graphical object 32 comprises a first representation 321 of the operating state of the headlights in low beam mode, when the initial data indicates that the low beam headlights of the vehicle 10 are on. The first graphical representation 321 is not limited in itself and must be adapted to intuitively convey to the driver which types of lights are on. Advantageously, the distinction between low beam and high beam is important. The first graphical representation 321 can therefore advantageously correspond to circular shapes, preferably elliptical, oblong, or oval, dimensioned in such a way as to immediately make it clear to the driver that their dipped headlights are on. The use of a particular color, such as one reminiscent of dipped headlights, for example, green or yellow, can also be advantageous.

[0089] According to another embodiment, the graphical representation of the second graphical object 32 comprises a second representation 322 of the operating state of the headlights in high beam mode, when the initial data indicates that the high beams of the first vehicle 10 are illuminated. The second graphical representation 322 is not limited in scope and must be adapted to intuitively convey to the driver which types of lights are illuminated. Advantageously, the distinction between low beams and high beams is important. The second graphical representation 322 can therefore advantageously correspond to circular, preferably elliptical, oblong, or oval shapes, sized in such a way as to immediately convey to the driver that their high beams are illuminated.Advantageously, the dimensions of the second graphic representation 322 will be adapted so that they are larger than those of the first graphic representation 321. For example, in the case of circular shapes of the circle type, the diameter of the circle corresponding to the high beams is advantageously larger than the diameter of the circle corresponding to the low beams. In the case of circular shapes of the elliptical type, the major semi-axis and / or the minor semi-axis corresponding to the high beams is advantageously larger than the major semi-axis and / or the minor semi-axis corresponding to the low beams.

[0090] The use of a particular colour, such as one reminiscent of high beams, for example, the colour blue, can also be advantageous.

[0091] According to another embodiment, the graphical representation of the second graphical object 32 includes a second representation 323 of the operating state of the headlights in the "lights off" mode, when the initial data indicates that the lights of the first vehicle 10 are off. The second graphical representation 323 is not limited in scope and must be adapted to intuitively convey to the driver that their lights are off. The second graphical representation 323 may therefore advantageously correspond to a non-visible graphic shape (for example, black on a black background) or to visible circular shapes, preferably elliptical, oblong, or oval, in a color that allows the driver to immediately understand that their headlights are off. Advantageously, the color of the second graphical representation 323 is chosen from dark colors, advantageously from shades of gray.

[0092] Figure 3 also schematically illustrates that the overlapping (or covering) of graphic objects 30 and 32 is not mandatory, since the driver of the vehicle 10 understands that graphic object 32 corresponds to a representation of the operating state of its headlights. Graphic content 38 is therefore a variant of the graphic content of area 34. By way of example, only a variant of the graphic content comprising the first graphic representation 321 is shown, and it is understood that the same variations can be applied to the second and third graphic representations 322 and 323, respectively. Graphic content 38 thus illustrates a variant in which the first graphic representation 321 of the second graphic object 32 does not overlap the first graphic object 30.The distance separating the first graphic representation 321 from the first graphic object 30 is not limiting of the invention and is advantageously adapted so as to make it intuitively understandable to the driver of the vehicle 10 that the first graphic representation 321 corresponds to a representation of the lighting state of its front headlights.

[0093] In a second operation of the process, second data representing a malfunction of at least one of the front headlights of the first vehicle 10 are received, for example from a computer monitoring the electrical flow in the lighting system such as the body control module (in English, “BCM” or “Body Control Module” or from one of the advanced on-board diagnostic systems (in English, “OBD” or “On-Board Diagnostics”).

[0094] Advantageously, the malfunction includes a malfunction in the lighting, such as a headlight bulb (high beam, low beam, etc.) for example.

[0095] In another process operation, the display of a fourth graphical representation 40 of the graphical object 32 is controlled in such a way that the graphical representation is displayed on the touch screen in place of one or the other of the first, second or third graphical representation 321, 322, and 323, respectively, as illustrated in [Fig.4] according to a particular embodiment.

[0096] The display of the graphic representation 40 depends on the second set of data. When the second set of data represents a malfunction (a burnt-out bulb, for example) affecting the left, right, or both headlights, the graphic representation 40 is adapted to indicate, by means of a visual signal (which may be coupled with an audible signal), the precise location of the malfunction – left, right, or both headlights. The graphic representation 40 is not particularly limited and may include any signage suitable for drawing the driver's attention to the vehicle's lighting failure 10 and thus enabling them to take rapid corrective action to avoid driving with inadequate lighting. In a particular, non-limiting embodiment, the fourth graphic representation 40 corresponds to a first graphic representation 321 of the graphic object 32 in which one or both of the circular shapes representing the lighting of the lights include a modification to indicate the malfunction.

[0097] In a particular embodiment, said modification corresponds to a cross 41, preferably of a striking color (red, for example), crossing the circular shape of the light(s) affected by the malfunction. In a variant, said modification corresponds to the absence 42 of the circular shape of the light(s) affected by the malfunction.

[0098] In another variant, said modification corresponds to a change of colour, preferably to an impactful colour (red for example), of the circular shape of the light(s) impacted by the malfunction.

[0099] In yet another variant, said modification includes a flashing of the circular shape of the light or lights affected by the malfunction.

[0100] In another operation of the process, and as illustrated in [Fig.6], third data representing a touch 50 on the graphic object 40 are received, following a touch 50 from a user (for example the driver of the vehicle 10) on the graphic object 40. In a particular and non-limiting embodiment, the touch 50 is on the graphic representation of the faulty light or lights.

[0101] A touch press on the graphic object 40 sends information to the IVI computer so that the latter implements one or more functions associated with the command corresponding to the touch press.

[0102] The third data representing the touch press are received for example via one or more data buses linking the touch interface of the screen (or a computer controlling such a touch interface where applicable) and the IVI computer.

[0103] Touch support corresponds, for example, to: - a short or brief touch press where the duration of the press on the graphic object 40 is less than a threshold duration (for example equal to 500 or 1000 ms); or - a long touch press where the duration of the press on the graphic object 40 is greater than the threshold duration (for example equal to 500 or 1000 ms).

[0104] In another operation of the process, the computer in charge of the process, for example the IVI computer, controls the display of a third, predetermined graphical object 60 comprising graphical or textual content 62 providing information related to the malfunction represented by the graphical representation 40 of the graphical object 32. The graphical or textual content 62 is a function of the third data. In a certain embodiment, the graphical content 36 also includes the third graphical object 60.

[0105] In a particular embodiment, the textual content is a sentence written on a contrasting background of the type "Faulty right (or left) headlight bulb, please replace it", the wording and style of the text being by no means limiting.

[0106] In a certain particular and non-limiting embodiment, the third graphic object 60 is displayed in the same area 34 of the screen 20 as the preceding graphic objects. Alternatively, in another particular embodiment, the third graphic object 60 is displayed in an area of ​​the screen 20 separate from the other graphic objects. The third graphic object 60 may also be included within the first and / or second graphic object.

[0107] By directly pressing on the graphic object representing the malfunction, the user can easily and immediately become aware not only of the existence of a malfunction but also of its nature, and take the necessary measures more quickly and efficiently.

[0108] The end of the display of the third graphic object 60 is controlled by the computer in charge of the process automatically or following an action by the driver or a passenger of the vehicle 10.

[0109] The display of the graphic content is thus automatically controlled, for example, after a predetermined display time without any touch interaction from the driver or any other user with this graphic content, for example after 5, 10, or 25 seconds of display. According to one embodiment, the display of the graphic object is terminated when the driver briefly touches the screen 20 outside the display area of ​​the graphic content.

[0110] The first vehicle 10 further carries a third-party vehicle detection system using sensors such as radars, lidars or cameras, to continuously monitor, or only when activated, the environment surrounding the first vehicle 10. As illustrated in [Fig.7], in a particular and non-limiting embodiment, the third-party vehicle detection system is adapted to detect the presence of a second vehicle 70 in front of the first vehicle 10 according to a direction of travel 72 of the first vehicle 10.

[0111] In another operation of the process, fourth data representing the presence of a second vehicle 70, in front of the first vehicle according to a direction of travel 72 of the first vehicle 10, are received, for example, by the ADAS module.

[0112] The term "in front", as used here, refers to the area or space within the direct and immediate field of travel of a motor vehicle moving on a traffic lane. This space is generally delimited by the longitudinal axis of the vehicle and extends from the front bumper to a predetermined distance. which can vary depending on vehicle speed, driving conditions, and the technical specifications of the detection system used.

[0113] As illustrated in [Fig. 7], when the presence of a second vehicle is detected, the control unit in charge of the process, for example the IVI control unit, controls the display of a fourth graphic object 74 representing the presence of the second vehicle 70, and displayed in the same area of ​​the screen in front of the first graphic object 30 according to the direction of travel 72 of the first vehicle 10. The display of the fourth graphic object 74 is a function of the fourth data point. The graphic content 36 also includes the fourth graphic object 74.

[0114] In another step of the process, the display of a fifth graphic object 80 representing a glare risk warning is controlled by the processing computer, for example the IVI computer, when the fourth graphic object 74 and the second representation 322 representing an operating state of the headlights 12 are simultaneously displayed, the fifth graphic object 80 being displayed in the same area of ​​the screen 34 as illustrated in [Fig. 8] by a particular, non-limiting example of the invention. The graphic content 36 also includes the fifth graphic object 80.

[0115] In a particular embodiment, the graphic content 36 comprises all the graphic objects described herein, either all or some simultaneously, or one after the other.

[0116] The display of the fifth graphic object 80 is a function of at least two parameters together indicative of a potential situation of glare for the driver of the second vehicle 70 from the headlights 12 of the first vehicle 10. By way of example, the computer in charge of the process does not control the display of the fifth graphic object 80 in either of the following situations: - When the fourth graphic object 74 representing the second vehicle 70 is not displayed on screen 20; - When the fourth graphic object 74 representing the second vehicle 70 and the first representation 321 or the third representation 323 representing an operating state of the front headlights 12 are displayed simultaneously on the screen 20.

[0117] The appearance of a graphic representation of the fifth graphic object 80 is not particularly limited. Advantageously, this appearance is suitable for drawing the attention of the driver of the first vehicle 10 to a potential situation of dazzling a second vehicle 70 without endangering them. In one particular embodiment, the graphic representation of the fifth graphic object 80 is a static color hazard warning shape bright colors such as yellow or red. The shape can be circular or have a plurality of acute angles.

[0118] According to one variant, the fifth graphic object 80 includes a flashing signal, accompanied or not by an audible signal, and is displayed superimposed on said first graphic object 30 and / or second graphic object 32 and / or fourth graphic object 74. The signal may flash and / or change colour and / or be associated with an audible signal but must in any case attract the driver's attention without greatly distracting him from his driving.

[0119] The display of the fifth graphic object 80 should prompt the driver of the first vehicle 10, which is on high beam, to switch to low beam, in particular to avoid dazzling the second vehicle in front of it, especially when the first vehicle 10 is not equipped with an adaptive and automatic front lighting system such as, for example, Matrix Beam technology.

[0120] Figure 9 schematically illustrates a device 90 configured for the control of a A vehicle display system, for example vehicle 10, according to particular and non-limiting embodiments of the present invention. Device 90 corresponds, for example, to a device embedded in vehicle 10, for example a computer.

[0121] The device 90 is, for example, configured to carry out the operations described opposite Figures 1 to 8 and / or the steps of the process described opposite [Fig. 9]. Examples of such a device 90 include, but are not limited to, embedded electronic equipment such as a vehicle's on-board computer, an electronic control unit such as an ECU (Electronic Control Unit), a smartphone, a tablet, or a laptop computer. The elements of the device 90, individually or in combination, may be integrated into a single integrated circuit, into several integrated circuits, and / or into discrete components. The device 90 may be implemented in the form of electronic circuits or software (or computer) modules, or a combination of electronic circuits and software modules.

[0122] The device 90 comprises one (or more) processor(s) 900 configured to execute instructions for carrying out the steps of the process and / or for executing instructions from the software embedded in the device 90. The processor 900 may include integrated memory, an input / output interface, and various circuits known to those skilled in the art. The device 900 further comprises at least one memory 910, for example, volatile and / or non-volatile memory, and / or includes a memory storage device that may include volatile and / or non-volatile memory, such as EEPROM, ROM, PROM, RAM, DRAM, SRAM, flash, magnetic disk, or optical disk.

[0123] The computer code of the embedded software(s) including the instructions to be loaded and executed by the processor is for example stored on memory 910.

[0124] According to various particular and non-limiting embodiments, the device 90 is coupled in communication with other similar devices or systems and / or with communication devices, for example a TCU (Telematic Control Unit), for example via a communication bus or through dedicated input / output ports.

[0125] According to another particular and non-limiting embodiment, the device 90 includes a communication interface 930 which enables communication with other devices (such as other computers in the embedded system) via a communication channel 932. The communication interface 930 corresponds, for example, to a transmitter configured to transmit and receive information and / or data via the communication channel 932. The communication interface 930 corresponds, for example, to a wired network of the CAN (Controller Area Network), CAN FD (Controller Area Network Flexible Data-Rate), FlexRay (standardized by ISO 17458) or Ethernet (standardized by ISO / IEC 802-3) type and can, for example, receive data from a computer in the advanced driver assistance system (ADAS).

[0126] According to a particular and non-limiting embodiment, the device 90 can provide output signals to one or more external devices, such as a display screen 942, touch or non-touch, one or more loudspeakers 952 and / or other peripherals 962 (projection system) via output interfaces 940, 950 and 960 respectively. According to a variant, one or more of the external devices is integrated into the device 90.

[0127] Figure 10 illustrates a flowchart of the various steps in a method for controlling a display system embedded in a vehicle, for example vehicle 10, according to a particular and non-limiting embodiment of the present invention. The method is implemented, for example, by a device embedded in vehicle 10 or by device 90 of Figure 9.

[0128] In a first step 101, the display of a first graphic object representing a first vehicle is controlled so that this graphic object is displayed in an area of ​​the touch screen.

[0129] In a second step 102, first representative data of an operating state of the front headlights of the first vehicle are received.

[0130] In a third step 103, the display of a second graphic object representing an operating state of the first vehicle's headlights is controlled so that this graphic object is displayed in an area of ​​the touchscreen and the first graphic object includes the second graphic object. In a particular embodiment, the second graphic object may include three distinct graphic representations depending on whether initial data indicates dipped headlights on, main beam headlights on, or headlights off.

[0131] In a fourth step 104, second data representative of a malfunction of at least one of the front headlights of the first vehicle are received.

[0132] In a fifth step 105, the display of a fourth graphic representation of the second graphic object representing the malfunction is controlled according to the second data so that the graphic representation is displayed in an area of ​​the touch screen and indicates the presence and location of the malfunction on one or both of the front lights.

[0133] In a sixth step 106, third data representing a touch press on the fourth graphic representation of the second graphic object are received.

[0134] In a seventh step 107, the display of a third graphic object including information associated with the malfunction is controlled according to the third data so that the third graphic object is displayed in an area of ​​the touch screen.

[0135] Figure 11 illustrates a flowchart of the different steps in a method for controlling a display system embedded in a vehicle, for example vehicle 10, according to another particular and non-limiting embodiment of the present invention. The method is implemented, for example, by a device embedded in vehicle 10 or by the device 90 of Figure 9.

[0136] In a first step 101, the display of a first graphic object representing a first vehicle is controlled so that this graphic object is displayed in an area of ​​the touch screen.

[0137] In a second step 102, first data representative of an operating state of the front headlights of the first vehicle are received.

[0138] In a third step 1031, 1032, or 1033, the display of a graphical representation of a second graphical object representing an operating state of the first vehicle's headlights is controlled so that this graphical object is displayed in an area of ​​the touchscreen and the first graphical object includes the second graphical object. The graphical representation of the second graphical object is a function of the first data and represents either the dipped headlights on (1031), the main beam headlights on (1032), or the headlights off (1033).

[0139] In a fourth step 114, second data representing the presence of a second vehicle in front of the first vehicle in the direction of travel of the first vehicle are received. Step 114 is common to the three graphical representations of the second graphical object.

[0140] In a fifth step 115, the display of a third graphic object representing the presence of a second vehicle is controlled so that this graphic object is displayed in the same area of ​​the touchscreen as the other graphic objects in front of the first graphic object, according to the direction of travel of the first vehicle. Step 115 is common to all three graphic representations of the second graphic object.

[0141] In a sixth step 116, the display of a fourth graphic object representing a glare risk warning is controlled so that this graphic object is displayed only when the graphic representation of the second graphic object displayed on the screen is that corresponding to the high beams being on, as shown in the flowchart in [Fig. 1 1].

[0142] The different process steps of the flowcharts in Figures 10 and 11 can of course be carried out in parallel (simultaneously or alternately with different degrees of time lag), for example, a malfunction of one of the front lights can occur simultaneously with the detection of a second vehicle and the triggering of a dazzling signal.

[0143] According to one variant, the variants and examples of the operations described in relation to one of Figures 1 to 9 apply to the steps of the process in Figures 10 and 11.

[0144] Of course, the present invention is not limited to the embodiments described above but extends to a method for displaying objects and graphic content representative of a headlight status indicator system installed in a vehicle, which would include secondary steps without falling outside the scope of the present invention. The same would apply to a device configured for implementing such a method.

[0145] The present invention also relates to a vehicle, for example an automobile or more generally an autonomous land-based motor vehicle, comprising the device 90 of [Fig.9] or a display system comprising the device 90 of [Fig.9] connected in communication to a touch screen 20.

Claims

Demands

1. A method for controlling a display system of a first vehicle (10) comprising headlights (12), said display system comprising a touch screen (20), said method being implemented by a processor and comprising the following steps: - control (101) of displaying graphic content (36), displayed in an area (34) of said screen (20), comprising a first graphic object (30) representing the presence of said first vehicle (10); - reception (102) of first data representing an operating state of the headlights (12) of said first vehicle (10); - control (103) of displaying a second graphic object (32), displayed in said area (34) of said screen (20), representing an operating state of the headlights (12) of said first vehicle (10); wherein a graphic representation of said second graphic object is a function of said first data;and in which said first graphic object (30) comprises said second graphic object (32), in which said graphic representation of said second graphic object comprises: - a first representation (321) of an operating state of the front headlights in dipped beam mode, when said first data indicate that the dipped beams of said first vehicle are on; - a second representation (322) of an operating state of the front headlights in main beam mode, when said first data indicate that the main beams of said first vehicle are on;- a third representation (323) of a state of operation of the front headlights in off mode, when said first data indicate that the high beams of said first vehicle are off, in which the method comprises the following steps: - reception (114) of fourth data representing the presence of a second vehicle (70) in front of the first vehicle (10) according to a direction of travel of the first vehicle (72); - control (115) of display of a fourth graphic object (74), representative of the presence of said second vehicle (70), and displayed in said area (34) of said screen (20) in front of said first graphic object (30) according to a direction of travel of the first vehicle (72), and in which the method includes a control step (116) of display of a fifth graphic object (80) representative of a signal of a risk of glare, when said fourth graphic object (74) and said second representation (322) of an operating state of the front headlights (12) are simultaneously displayed, said fifth graphic object (80) being displayed in said area (34) of said screen (20).

2. A method according to claim 1, comprising the following steps: - receiving (104) second data representing a malfunction of at least one of the front headlights of said first vehicle (10); - checking (105) the display of a fourth graphic representation (40) of said second graphic object (32) representing said malfunction.

3. Method according to claim 2, wherein said fourth graphic representation (40) of said second graphic object (32) is, furthermore, representative of a location of said malfunction.

4. A method according to claim 2 or 3, wherein said method comprises the following steps: - receiving (106) third data representing a touch press (50) on said fourth graphic representation (40) of said second graphic object (32); - checking (107) the display of a third graphic object (60) including information (62) associated with said malfunction, displayed in the area (34, 342) of said screen (20).

5. A method according to any one of claims 1 to 4, wherein said fifth graphic object (80) is a flashing signal, and is displayed superimposed on said second graphic object (32) and / or said fourth graphic object (74).

6. Device (90) for controlling a display system of a vehicle (10), said device (90) comprising a memory (910) associated with at least one processor (900) configured for carrying out the steps of the method according to any one of claims 1 to 5.

7. Vehicle (10) comprising the device (90) according to claim 6.

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