Method and device for controlling a system for assisting the maneuvering of a loaded vehicle

Abstract

The present invention relates to a method and a device for controlling a system for assisting maneuvers of a loaded vehicle by at least one object positioned in such a way that at least one dimensional characteristic of the loaded vehicle is greater than at least one dimensional characteristic of the unloaded vehicle. The method receives (71) first data representative of dimensional characteristics of the loaded vehicle; controls (72) the display of a first graphic content representative of a top view of the loaded vehicle determined as a function of said dimensional characteristics of the loaded vehicle, the first graphic content being displayed in a first area of ​​the screen; and controls (73) the display of a second graphic content representative of a rear view of the loaded vehicle determined as a function of dimensional characteristics of the loaded vehicle, the second graphic content being displayed in a second area of ​​the screen.Figure for abstract: Figure 7.

Description

Title of the invention: Method and device for controlling a system for assisting the maneuvering of a loaded vehicle Technical field

[0001] The invention relates to methods and devices for controlling a vehicle maneuvering assistance system. In particular, the invention relates to a method and device for controlling a rear vision system of a vehicle or a proximity radar when the vehicle is loaded. 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] Today, AD AS systems are configured to operate only for unloaded vehicles. The load may be an object or a set of objects positioned, for example, on the roof of the vehicle or on a platform or bars attached to the vehicle. The load is positioned on the vehicle in such a way that at least one dimensional characteristic of the loaded vehicle is greater than at least one dimensional characteristic of the unloaded vehicle.

[0006] [Fig.l] illustrates an example of a vehicle loaded with a load formed of a bar and two cubic-shaped objects.

[0007] In particular, AD AS systems for assisting vehicle maneuvers such as proximity radars or even rear vision systems which display graphic content representing top and rear views of the vehicle during a reversing maneuver, are configured according to the dimensional characteristics of the vehicle, i.e. according to the length, width and height of the vehicle. In particular, the alarm thresholds of the proximity radars are set so that an alarm is triggered in the passenger compartment of the vehicle as soon as a proximity radar detects an obstacle at a predetermined distance, for example 50 cm.

[0008] Vehicle loading is a time-consuming operation for most vehicle users. These users can thus easily forget that the overall dimensions of their loaded vehicle have changed from the dimensions of the unloaded vehicle due to the load carried by these vehicles.

[0009] When the load of a vehicle is positioned so that at least one dimensional characteristic of the loaded vehicle is greater than at least one dimensional characteristic of the unloaded vehicle, incidents may occur when maneuvering the loaded vehicle, for example during a reverse maneuver where the user relies on the information provided by proximity radars and rear vision systems. Indeed, the loaded vehicle may have a length greater than that of the unloaded vehicle and a reverse maneuver based on the proximity radar proximity alarm may cause a collision between the load of the vehicle and an obstacle located at the rear of this vehicle such as a wall or another vehicle.Similarly, rear vision systems display graphical content on a vehicle screen that depicts rear-view images of the vehicle overlaid with markings, often lines of different colors that indicate the paths of the vehicle's wheels. Thus, the driver relies on these markings to maneuver in reverse. However, the load may protrude to one side and / or the rear of the vehicle, and maneuvering the vehicle in reverse by relying on these markings may cause the vehicle's load to strike an obstacle to the rear or side of the vehicle, such as a wall or another vehicle.

[0010] In the state of the art, there are no AD AS systems for assisting loaded vehicle maneuvers which take into account the loads carried by these vehicles, whereas such AD AS systems would improve the safety of the vehicles and loads transported.

[0011] Moreover, maneuvers with bulky loads are very often more complex than maneuvers with unloaded vehicles, and AD AS systems generally do not work or are deactivated, providing even less assistance to the user than usual. Summary of the present invention

[0012] An 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 improve the user experience with respect to a display system for assisting with vehicle maneuvers.

[0014] Another object of the present invention is to increase the reliability of vehicle maneuvering assistance systems.

[0015] According to a first aspect, the present invention relates to a method for controlling a system for assisting the maneuvers of a loaded vehicle by at least one object positioned in such a way that at least one dimensional characteristic of the loaded vehicle is greater than at least one dimensional characteristic of the unloaded vehicle, said system for assisting the maneuvers of the vehicle comprising a screen, said method being implemented by a processor and comprising the following steps: - receipt of initial data representative of the dimensional characteristics of the loaded vehicle; - display control of a first graphic content representative of a top view of the loaded vehicle determined as a function of said dimensional characteristics of the loaded vehicle, the first graphic content being displayed in a first area of ​​the screen; and - display control of a second graphic content representative of a rear view of the loaded vehicle determined according to dimensional characteristics of the loaded vehicle, the second graphic content being displayed in a second area of ​​the screen.

[0016] The control method according to the present invention offers a user of a vehicle, in particular the driver, a new, safer and more practical experience when he has to travel with bulky luggage or goods on the roof or in the trunk of his vehicle.

[0017] The control method according to the present invention makes it possible to remind the driver of the vehicle when reversing that an object is present on the roof or in the trunk of his vehicle. The control method therefore makes it possible to prevent these transported objects from being damaged by collision with an obstacle located at the rear of the vehicle.

[0018] The control method adapts the maneuvering assistance systems without having to directly and manually modify the parameters of these systems to take into account the objects transported by this vehicle.

[0019] The control method facilitates the maneuvering of a loaded vehicle because the driver can view the load of his vehicle on the screen and thus have confidence in the information provided by the maneuvering assistance systems.

[0020] According to a variant, the first graphic content comprises an image representing the loaded vehicle seen from above on which is superimposed a first graphic representation of a top view of said at least one object, said first representation graph being determined based on the dimensional characteristics of the loaded vehicle.

[0021] According to another variant, the first graphic representation comprises a set of lines which delimit a footprint of said at least one object.

[0022] According to another variant, the second graphic content comprises an image representing a rear view of the loaded vehicle on which is superimposed a second graphic representation of the trajectory of the wheels of the vehicle, a third graphic representation of a width of the unloaded vehicle, a fourth graphic representation of a rear vertical alignment of the unloaded vehicle and a fifth graphic representation of a footprint of at least one part of said at least one object.

[0023] According to a variant, the second graphic representation comprises curves projected on the ground whose radii of curvature depend on an orientation of the front wheels of the vehicle, for which the third graphic representation comprises a set of lines projected on the ground which delimit the width of the unloaded vehicle, for which the fourth graphic representation comprises a line projected on the ground which delimits the rear verticality of the unloaded vehicle and for which the fifth graphic representation comprises a set of lines projected on the ground which delimit a footprint on the ground of a part of said at least one object.

[0024] According to a variant, the method further comprises a step of adjusting the proximity sensor setting according to the dimensional characteristics of the loaded vehicle.

[0025] According to a variant, a proximity sensor alert threshold is adjusted according to the dimensional characteristics of the loaded vehicle.

[0026] According to a second aspect, the present invention relates to a device for controlling a system for assisting with maneuvers of a loaded 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.

[0027] According to a third aspect, the present invention relates to a vehicle, for example of the automobile type, comprising a device according to the second aspect of the present invention.

[0028] 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.

[0029] 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.

[0030] 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 method according to the first aspect of the present invention.

[0031] 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.

[0032] 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.

[0033] 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

[0034] 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 7, in which:

[0035] [Fig-1] schematically illustrates an example of a vehicle loaded by a load formed from a bar and two cubic-shaped objects;

[0036] [Fig.2] schematically illustrates a communication environment of a vehicle, according to a particular exemplary embodiment of the present invention;

[0037] [Fig.3] schematically illustrates a part of the passenger compartment of the vehicle of [Fig.l], according to a particular exemplary embodiment of the present invention;

[0038] [Fig.4] schematically illustrates an example of graphic contents displayed on the screen of the loaded vehicle during a maneuver of this vehicle in reverse according to a particular example of the present invention.

[0039] [Fig.5] schematically illustrates an example of graphic contents displayed on the screen of the loaded vehicle during a maneuver of this vehicle in reverse according to a particular example of the present invention.

[0040] [Fig.6] illustrates a device configured to control a maneuvering assistance system of the vehicle of [Fig.2], according to a particular and non-limiting exemplary embodiment of the present invention.

[0041] [Fig.7] illustrates a flowchart of the different stages of a control process of a vehicle maneuvering assistance system of [Fig.2], according to a particular embodiment of the present invention. Description of examples of implementation

[0042] A method and a device for controlling a vehicle maneuvering assistance system will now be described in the following with joint reference to Figures 1 to 7. The same elements are identified with the same reference signs throughout the description which follows.

[0043] 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.

[0044] According to a particular and non-limiting example of embodiment of the present invention, the control of the maneuvering assistance system on board a vehicle is for example implemented by one or more computers of the vehicle, for example via one or more processors.

[0045] First data representative of dimensional characteristics of the loaded vehicle are received, for example from mobile equipment in mobile communication connected in communication to the vehicle.

[0046] The dimensional characteristics of the loaded vehicle are for example the length and / or the width and / or the height of the loaded vehicle, i.e. the length (width, height) of the unloaded vehicle to which is possibly added a value which corresponds to the excess in length (width, height) of the load of the vehicle.

[0047] The display of a first graphic content representative of a top view of the loaded vehicle is controlled as a function of said dimensional characteristics of the loaded vehicle so that this first graphic content is displayed in a first zone of a screen of the vehicle maneuvering assistance system. The first graphic content corresponds, for example, to an image representing the loaded vehicle seen from above.

[0048] The display of a second graphic content representative of a rear view of the loaded vehicle is controlled as a function of said dimensional characteristics of the loaded vehicle so that this second graphic content is displayed in a second zone of the screen of the vehicle maneuvering assistance system. The second graphic content corresponds, for example, to an image representing a rear view of the vehicle on which third data representative of the trajectory of the wheels of the vehicle are superimposed. Fourth data representative of at least a part of said at least one object may also be superimposed on the image

[0049] Such a method makes it possible to control, during a reversing maneuver of the vehicle, the display of a first and second graphic content comprising images of a top view of the vehicle and a rear view of the vehicle as well as information superimposed on these images for maneuvering the vehicle in reverse in complete safety.

[0050] [Fig.2] schematically illustrates a communication environment 1 for a vehicle 10, according to a particular exemplary embodiment of the present invention.

[0051] 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 a car, a truck, a bus.

[0052] The vehicle 10 advantageously carries a communication system configured to communicate with one or more remote devices such as, for example, mobile communication equipment 20 using one or more communication media.

[0053] A communication medium may be defined by a communication network infrastructure, by a communication protocol and / or by a communication channel (defined by channel parameters).

[0054] The communication system of the vehicle 20 comprises, for example, one or more communication antennas connected to a telematic control unit, called TCU (from the English “Telematic Control Unit”), itself connected to one or more computers of the on-board system of the vehicle 10. The antenna(s), the TCU unit and the computer(s) 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.The computer(s) and the TCU communicate and exchange data with each other via one or more computer buses, for example a communication bus of the CAN (Controller Area Network), CAN FD (Controller Area Network Flexible Data-Rate), FlexRay (according to the ISO 17458 standard) or Ethernet (according to the ISO / IEC 802-3 standard) data bus type.

[0055] According to an exemplary implementation, the vehicle communication system 10 comprises a communication interface or module configured to connect to the mobile communication equipment 20 (for example a smartphone) via a wireless connection (Wifi® or Bluetooth® for example) or a wired connection (for example of the USB type (from the English “Universal Serial Bus” or “Universal Serial Bus” in French)). The mobile communication equipment 20 is configured to establish a wireless or wired connection with the vehicle communication system 10.

[0056] The communication equipment 20 comprises means for obtaining dimensional characteristics of a loaded vehicle.

[0057] For example, the communication equipment 20 is a smartphone or a computer.

[0058] According to a particular and non-limiting exemplary embodiment of the present invention, the means for obtaining dimensional characteristics of a loaded vehicle comprise a human-machine interface, called HMI, which is configured so that a user can manually enter dimensions of the loaded vehicle.

[0059] According to a particular and non-limiting exemplary embodiment of the present invention, the means for obtaining dimensional characteristics of a loaded vehicle comprise a camera configured to capture at least one image (typically 4 images) and / or a video of the loaded vehicle from different points of view. The means for obtaining dimensional characteristics of a loaded vehicle also comprise calculation means configured to determine the model of the vehicle and the dimensions of the objects visible and transported by the vehicle from said at least one photo and / or said at least one video and to determine the dimensional characteristics of the loaded vehicle from the dimensions of the model of the vehicle and the dimensions of the objects visible and transported determined.

[0060] The mobile communication equipment 20 may also comprise means for interfacing with a user to indicate to him whether further photos and / or video must be taken to refine the dimensional characteristics of the loaded vehicle and to indicate to this user that the dimensional characteristics of the loaded vehicle have been successfully determined. The dimensional characteristics of the loaded vehicle are then transmitted to the vehicle communication system 10.

[0061] According to a particular and non-limiting exemplary embodiment of the present invention, the calculation means are in the form of an application downloaded onto the mobile communication equipment 20. This application cooperates with the camera, a memory and a screen of the mobile communication equipment 20 to implement capturing said at least one image and / or said at least one video, the calculation means and the interfacing means.

[0062] This embodiment is advantageous because it avoids having to take precise measurements of the loaded vehicle and enter them manually so that the maneuvering assistance system can take them into account. It also avoids possible errors in entering these measurements. It speeds up the taking into account of the dimensional characteristics of the loaded vehicle compared to manually entering these characteristics di- monthly when entered manually.

[0063] [Fig. 3] schematically illustrates a part of the passenger compartment of the vehicle 10, according to a particular exemplary embodiment of the present invention.

[0064] The vehicle 10 advantageously incorporates a vehicle maneuvering assistance system comprising a screen 22 located, for example, in the dashboard 21 of the vehicle 10 and a computer configured to control the display of graphic content(s) on the screen 22. The computer corresponds for example to the computer of the infotainment system, called the IVI (In-Vehicle Infotainment) computer of the vehicle 10.

[0065] The screen 22 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”).

[0066] The screen 22 is configured to display graphic content intended for the driver and passengers of the vehicle 10. The screen 22 may be touch-sensitive and then be 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 screen 22 which is then touch-sensitive. For example, the screen 22 is configured to interact with the IVI system and / or the maneuvering assistance system of the vehicle 10.

[0067] A process for controlling the maneuvering assistance system on board the vehicle 10 is advantageously implemented by one or more processors of the vehicle 10, for example by one or more of a computer of the vehicle 10 such as the IVI computer.

[0068] In a first operation of the process, first data representative of dimensional characteristics of the loaded vehicle are received.

[0069] According to a variant, the dimensional characteristics of the loaded vehicle 10 are obtained from the mobile communication equipment 20 as described previously.

[0070] In a second operation of the process, a display of a first graphic content 31 is controlled. The first graphic content 31 is representative of a top view of the loaded vehicle 10 determined as a function of said dimensional characteristics of the loaded vehicle 10. The first graphic content 31 is displayed in a first zone 221 of the screen 22.

[0071] The first graphic content 31 displayed allows the driver of the vehicle 10 to visualize the load of his vehicle 10 and to become aware that the vehicle 10 has a volume greater than the usual volume. The driver then pays full attention particular to its maneuver.

[0072] In a third operation of the process, a display of a first graphical content 32 is controlled. The first graphical content 32 is representative of a top view of the loaded vehicle 10 determined as a function of said dimensional characteristics of the loaded vehicle 10. The first graphical content 32 is displayed in a second area 222 of the screen 22.

[0073] According to a particular and non-limiting exemplary embodiment of the present invention, the screen 22 is divided into two zones 221 and 222. The first zone 221 corresponds for example to a left part of the screen 22 and the second zone 222 corresponds for example to the right part of the screen 22.

[0074] According to a variant, the first graphic content 31 comprises an image 310 representing a top view of the vehicle 10 on which is superimposed a first graphic representation of a top view of said at least one object, said first graphic representation being determined as a function of the dimensional characteristics of the loaded vehicle.

[0075] According to a variant, the image 310 is representative of the model of the vehicle 10 seen from above.

[0076] According to a variant, the first graphic representation comprises a set of lines which delimit a ground area of ​​said at least one object transported by the loaded vehicle 10.

[0077] For example, this set of lines is determined as a function of the dimensional characteristics of said at least one object which can themselves be determined as a function of the dimensional characteristics of the unloaded vehicle 10 and the dimensional characteristics of the loaded vehicle 10 as described previously.

[0078] According to a variant, the second graphic content 32 comprises an image 320 representing a rear view of the loaded vehicle 10 on which is superimposed a second graphic representation of the trajectory of the wheels of the vehicle, a third graphic representation of a width of the unloaded vehicle 10, a fourth graphic representation of a rear vertical alignment of the unloaded vehicle 10 and a fifth graphic representation of a footprint on the ground of at least one part of said at least one object.

[0079] Image 320 represents a view of the environment located at the rear of the vehicle 10. For example, this image (from a video) is captured by a reversing camera located at the rear of the vehicle 10.

[0080] According to a variant, the second graphic representation comprises curves projected on the ground whose radii of curvature depend on the orientation of the front wheels of the vehicle 10. If the vehicle 10 is moving backward along its longitudinal axis then the curves are straight lines which are represented in the graphic content. The driver of the vehicle 10 can then precisely visualize the volume of objects protruding from the rear of the vehicle when maneuvering vehicle 10.

[0081] According to a variant, the third graphic representation comprises a set of lines projected on the ground which delimit the width of the unloaded vehicle 10. The width of the unloaded vehicle 10 is determined according to the dimensional characteristics of the unloaded vehicle 10.

[0082] According to a variant, the fourth graphic representation is a line projected on the ground which delimits the rear plumb line of the unloaded vehicle 10.

[0083] The rear plumb of the unloaded vehicle 10 can be determined for example as a function of the size of the vehicle 10. The rear plumb of the vehicle 10 can be defined as being a vertical plane passing through the rearmost point of the unloaded vehicle 10.

[0084] According to a variant, the fifth graphic representation comprises a set of lines projected on the ground which delimit a footprint on the ground of a part of said at least one object.

[0085] The present invention is not limited to the examples of the first, second, third, fourth and / or fifth graphical representations given here by way of example but extends to any graphical representation.

[0086] [Fig.4] schematically illustrates an example of graphic contents displayed on the screen 22 of the vehicle 10 loaded during a maneuver of this vehicle in reverse according to a particular example of the present invention.

[0087] In this example, the vehicle 10 is loaded with the objects 11, 12 and 13. The first zone 221 of the screen 22, here to the left of the screen 22, displays the first graphic content 31 comprising an image 310 from above of the unloaded vehicle 10 on which is superimposed a first graphic representation of the objects 11, 12 and 13, here represented by a set of lines delimiting a footprint of the objects 11, 12 and 13.The second area 222 of the screen 22, here to the right of the screen 22, displays the second graphical content 32 which comprises an image 320 representing a rear view of the loaded vehicle 10 on which is superimposed a second graphical representation of the trajectory of the wheels of the vehicle, here represented by curves 321, a third graphical representation of a width of the unloaded vehicle 10, here represented by dotted curves 322, a fourth graphical representation of a rear vertical alignment of the unloaded vehicle 10, here represented by a line 323, and a fifth graphical representation of a footprint of at least a portion of the object 11, here represented by a set of lines 324.

[0088] [Fig. 5] schematically illustrates an example of graphic contents displayed on the screen 22 of the loaded vehicle 10 during a maneuver of this vehicle in reverse according to a particular example of the present invention.

[0089] In this example, the second content 32 is represented which comprises an image 320 representing a rear view of the loaded vehicle 10 on which is superimposed a second graphical representation of the trajectory of the wheels of the vehicle, here represented by curves 321, a third graphical representation of a width of the unloaded vehicle 10, here represented by dotted curves 322, a fourth graphical representation of a rear vertical alignment of the unloaded vehicle 10, here represented by a line 323, and a fifth graphical representation of a footprint of at least a portion of the object 11, here represented by a set of lines 324.

[0090] The second graphic content 32 represented on the left part of [Fig.5] indicates to the driver that a part of the object 11 protrudes from the rear vertical of the vehicle 10 but that the rear maneuver will not be disturbed by this object 11. This is not the case on the second graphic content 32 represented on the right part of [Fig.5] because the fifth graphic representation 324 indicates that the object 11 will go beyond the width of the vehicle 10 if the maneuver continues, thus attracting the increased vigilance of the driver to maneuver.

[0091] According to a variant, the rear plumb of the vehicle 10 is adjusted according to the dimensional characteristics of the loaded vehicle 10. The adjusted plumb then corresponds to the rearmost point of the loaded vehicle 10.

[0092] According to a variant, in a fourth operation of the process, at least one setting of at least one proximity sensor (radar) is adjusted according to the dimensional characteristics of the loaded vehicle 10.

[0093] For example, an alert threshold of a proximity sensor is adjusted according to the dimensional characteristics of the loaded vehicle 10.

[0094] For example, the alert threshold of a proximity sensor that is used when the vehicle 10 is not loaded is extended by a value equal to the difference between the length of the unloaded vehicle 10 and the length of the loaded vehicle 10.

[0095] According to one variant, a route is determined by an on-board navigation system of the vehicle 10 as a function of the dimensional characteristics of the loaded vehicle 10.

[0096] This variant is advantageous because it adapts the choice of route to avoid areas with little height or narrow road crossings for example.

[0097] A display control of the first and second graphic contents or of any graphic object (text, pictogram, icon, etc.) comprises a rendering of these graphic contents, such a rendering corresponding to a set of operations carried out by one or more processors on the pixels of one or more images to be displayed on the screen 22. For example, the rendering consists of associating pixel data (for example color data expressed in an RGB type space (from the English “Red, Green, Blue” or in French “rouge, vert, bleu”)) with a set of pixels of an image. associated with each graphic content.

[0098] The display control of the first (second) graphic content thus comprises the transmission of control signals to the screen 22 to modify the values ​​associated with the pixels of the screen 22 at the location intended to display the first (second) graphic content, that is to say at a determined position in the first zone 221 (second zone 222).

[0099] The display control of the first (second) graphic content is for example triggered by the reception of the first data by the computer implementing the process described above.

[0100] [Fig. 6] schematically illustrates a device 6 configured for controlling a vehicle maneuvering assistance system, for example the vehicle 10 according to particular embodiments of the present invention. The device 6 corresponds for example to a device on board the vehicle 10, for example a computer.

[0101] The device 6 is for example configured for the implementation of the operations described with regard to figures 1 to 5 and / or the steps of the method described with regard to [Fig.7]. Examples of such a device 6 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 6, individually or in combination, can be integrated in a single integrated circuit, in several integrated circuits, and / or in discrete components. The device 6 can be produced in the form of electronic circuits or software (or computer) modules or even a combination of electronic circuits and software modules.

[0102] The device 6 comprises one (or more) processor(s) 60 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 6. The processor 60 may include integrated memory, an input / output interface, and various circuits known to those skilled in the art. The device 6 further comprises at least one memory 61 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.

[0103] 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 61.

[0104] According to various particular and non-limiting embodiments, the device 6 is coupled in communication with other similar devices or systems and / or with mobile communication equipment 20, for example a TCU (of English: "Telematic Control Unit" or in French "Unité de Contrôle Télématique"), for example via a communication bus or through dedicated input / output ports.

[0105] According to a particular and non-limiting exemplary embodiment, the device 6 comprises a block 62 of interface elements for communicating with external devices. The interface elements of the block 62 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 802.25.1), 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”).

[0106] According to another particular and non-limiting exemplary embodiment, the device 6 comprises a communication interface 63 which makes it possible to establish communication with other devices (such as other computers of the on-board system) via a communication channel 630. The communication interface 63 corresponds for example to a transmitter configured to transmit and receive information and / or data via the communication channel 630. The communication interface 63 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).

[0107] According to a particular and non-limiting exemplary embodiment, the device 6 can provide output signals to one or more external devices, such as a display screen 640, touch-sensitive or not, one or more speakers 650 and / or other peripherals 660 (projection system) via output interfaces 64, 65 and 66 respectively. According to a variant, one or other of the external devices is integrated into the device 6.

[0108] [Fig.7] illustrates a flowchart of the different stages of a control process of a maneuvering assistance system on board a vehicle, for example the vehicle 10, according to a particular embodiment of the present invention. The method is for example implemented by a device on board the vehicle 10 or by the device 6 of [Fig.6].

[0109] In a first step 71, first data representative of dimensional characteristics of the loaded vehicle are received.

[0110] In a second step 72, a display of a first graphic content 31 is controlled. The first graphic content 31 is representative of a top view of the loaded vehicle 10 determined as a function of said dimensional characteristics of the loaded vehicle 10.

[0111] In a third step 73, a display of a first graphic content 32 is controlled. The first graphic content 32 is representative of a top view of the loaded vehicle 10 determined as a function of said dimensional characteristics of the loaded vehicle 10.

[0112] In a fourth step 74, at least one setting of at least one proximity sensor (radar) is adjusted according to the dimensional characteristics of the loaded vehicle 10.

[0113] According to a variant, the variants and examples of the operations described in relation to one of figures 1 to 5 apply to the steps of the method of [Fig.7].

[0114] Of course, the present invention is not limited to the exemplary embodiments described above but extends to a method for controlling a maneuvering assistance system on board a vehicle 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.

[0115] The present invention also relates to a vehicle, for example a motor vehicle or more generally an autonomous land-based motor vehicle, comprising the device 6 of [Fig. 6] or a control system of a vehicle maneuvering assistance system comprising the device 6 of [Fig. 6] connected in communication to a screen 22.

Claims

Claims

1. Method for controlling a system for assisting maneuvers of a loaded vehicle by at least one object positioned so that at least one dimensional characteristic of the loaded vehicle is greater than at least one dimensional characteristic of the unloaded vehicle, said system for assisting maneuvers of the vehicle comprising a screen, said method being implemented by a processor and comprising the following steps: - receiving (71) first data representative of dimensional characteristics of the loaded vehicle; - controlling (72) the display of a first graphic content representative of a top view of the loaded vehicle determined as a function of said dimensional characteristics of the loaded vehicle, the first graphic content being displayed in a first area of ​​the screen;and - control (73) of display of a second graphic content representative of a rear view of the loaded vehicle determined as a function of dimensional characteristics of the loaded vehicle, the second graphic content being displayed in a second area of ​​the screen.;

2. Method according to claim 1, for which the first graphical content comprises an image representing the loaded vehicle seen from above on which is superimposed a first graphical representation of a top view of said at least one object, said first graphical representation being determined as a function of the dimensional characteristics of the loaded vehicle.

3. The method of claim 2, wherein the first graphical representation comprises a set of lines which delimit a footprint of said at least one object.

4. The method of claim 1 or 2, wherein the second graphical content comprises an image representing a rear view of the loaded vehicle on which is superimposed a second graphical representation of the vehicle's wheel path, a third graphical representation of a width of the unloaded vehicle, a fourth graphical representation of a rear plumb of the unloaded vehicle and a fifth graphical representation of a footprint of at least a portion of said at least one object.

5. A method according to claim 4, wherein the second graphical representation comprises curves projected on the ground whose radii curvature depend on an orientation of the front wheels of the vehicle, for which the third graphic representation comprises a set of lines projected on the ground which delimit the width of the unloaded vehicle, for which the fourth graphic representation comprises a line projected on the ground which delimits the rear plumb of the unloaded vehicle and for which the fifth graphic representation comprises a set of lines projected on the ground which delimit a footprint on the ground of a part of said at least one object.

6. A method according to one of the preceding claims, which further comprises a step of adjusting the proximity sensor setting according to the dimensional characteristics of the loaded vehicle.

7. The method of claim 6, wherein a proximity sensor alert threshold is adjusted according to the dimensional characteristics of the loaded vehicle.

8. Device for controlling a vehicle maneuvering assistance system, said device comprising a memory associated with at least one processor configured for implementing the steps of the method according to any one of claims 1 to 7.

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

10. Vehicle (10) comprising the device (6) according to claim 9.

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