Method and device for controlling an adaptive speed regulation system installed in a vehicle via steering wheel paddles

Abstract

The present invention relates to a method and device for controlling an adaptive cruise control system installed in a vehicle, referred to as the ACC system, comprising receiving (41) first data representing an ACC system activation state and a current setting level for a target inter-vehicle distance of the ACC system, and receiving (42) second data representing a press of a contextual paddle. An adjusted setting level for the target inter-vehicle distance is then determined (43) based on the first and second data points, and the ACC system is controlled (44) according to the adjusted setting level. Figure for the abstract: Figure 4

Description

Title of the invention: Method and device for controlling an adaptive cruise control system in a vehicle using steering wheel paddles. Technical field

[0001] The present invention relates to methods and devices for controlling an adaptive speed control system installed in a vehicle, particularly a motor vehicle. The present invention also relates to a method and device for regulating the speed of a vehicle. Technological background

[0002] Some contemporary vehicles are equipped with functions or system(s) or driving assistance, called AD AS (from the English "Advanced Driver-Assistance System" or in French "Système d'aide à la conduite avancé").

[0003] Among these systems, the adaptive cruise control system, or ACC, has as its primary function the automatic and adaptive regulation of the speed of the vehicles equipped with it, according to their environment. Such an ACC system determines one or more acceleration and / or braking commands based on a speed command and information relating to the vehicle's environment, the acceleration and / or braking command(s) being specific to regulating the vehicle's speed adaptively, that is to say, by taking into account the vehicle's environment.

[0004] This environmental information corresponds, for example, to the distance between the vehicle equipped with the ACC system and a vehicle traveling in front of it, the speed (e.g., relative speed) of the vehicle in front, the acceleration (or deceleration) of the vehicle in front, and / or a regulatory speed limit. Such a vehicle is called the target vehicle or target object of the ACC system. The acceleration command(s) are, for example, determined from a control law based on estimates of the torque supplied by a powertrain (e.g., an internal combustion or electric motor) to one or more wheels of the vehicle and the vehicle's current acceleration.

[0005] Such an ACC system requires the use of various controls placed for example in the vehicle's passenger compartment and allowing parameters to be adjusted and / or instructions to be sent to the ACC system.

[0006] The increasing number of systems embedded in a vehicle generates a growing need for controls to activate, control and / or configure these various embedded systems, making the vehicle's interior more complex. Summary of the present invention

[0007] One object of the present invention is to solve at least one of the problems of the technological background described above.

[0008] Another object of the present invention is to improve the ergonomics of a vehicle interior.

[0009] Another object of the invention is to improve the control of an adaptive speed regulation system embedded in a vehicle.

[0010] According to a first aspect, the present invention relates to a method for controlling an adaptive speed regulation system installed in a vehicle, called an ACC system, the method comprising the following steps: - reception of initial data representative of an activation state of the ACC system and a current setting level of a target inter-vehicle distance, known as target DIV, of the ACC system; - receiving second data points representing a press on a pallet; - determining an adjusted setting level of the target DIV based on the first and second data points; - control of the ACC system according to the adjusted setting level.

[0011] The ACC system control is thus carried out using a paddle and according to its state.

[0012] According to one variant of the method, the second data includes data representative of an identification of a pallet among a first and a second pallet.

[0013] Several actions can therefore be performed depending on the palette used.

[0014] According to another variant of the method, the current adjustment level and the adjusted adjustment level belong to a set of at least two adjustment levels, each adjustment level in the set being representative of a single target IVD, the at least two adjustment levels in the set being ordered so as to rank the target IVDs in an ascending order from a first adjustment level representative of a minimum target IVD to a last adjustment level representative of a maximum target IVD.

[0015] The set of adjustment levels allows several target DIVs to be defined, including the current adjustment level and the adjusted adjustment level.

[0016] According to yet another variant of the method, a direction of travel of the set of at least two levels of travel corresponding to a direction from the first adjustment level to the last adjustment level: - the adjusted setting level is the setting level of the assembly following the current setting level when the first paddle is pressed and the current setting level is different from the last setting level, and - the adjusted setting level is the setting level of the assembly preceding the current setting level when the second paddle is pressed and the current setting level is different from the first setting level.

[0017] Thus, a user can select an adjusted setting level as an adjustment level adjacent to the current setting level. The choice of the adjacent setting level is made according to the palette used.

[0018] According to a further embodiment of the method, the adjusted setting level is the current setting level when: - the support is applied to the first pallet and the current adjustment level is the last adjustment level, or - the support is made on the second pallet and the current adjustment level is the first adjustment level.

[0019] The current setting level then corresponds to an extreme target DIV; it is therefore not possible to increase a maximum target DIV or decrease a minimum target DIV. If a user requests to increase the target DIV when it is already at its maximum, the adjusted setting level remains the current setting level. Similarly, if a user requests to decrease the target DIV when it is already at its minimum, the adjusted setting level remains the current setting level.

[0020] According to yet another variant of the method, the ACC system is controlled when the ACC system is in an active state.

[0021] In the event that the ACC system is inactive, pressing a paddle cannot change its state or modify a current setting level.

[0022] According to a second aspect, the present invention relates to a control device for an adaptive speed regulation system of a vehicle, 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.

[0023] According to a third aspect, the present invention relates to a vehicle, for example of the automobile type, comprising a device as described above according to the second aspect of the present invention.

[0024] According to a fourth aspect, the present invention relates to a computer program which includes instructions adapted for carrying out 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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. Brief description of the figures

[0030] 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 4, in which:

[0031] [Fig-1] schematically illustrates a vehicle environment, according to an example of particular and non-limiting implementation of the present invention;

[0032] [Fig.2] schematically illustrates a passenger compartment of the vehicle of [Fig.1], according to a particular and non-limiting embodiment of the present invention;

[0033] [Fig.3] schematically illustrates a device configured to control an adaptive speed regulation system on board the vehicle of [Fig.1], according to a particular and non-limiting embodiment of the present invention;

[0034] [Fig. 4] illustrates a flowchart of the different steps in a method for controlling an adaptive speed control system embedded in the vehicle of [Fig. 1], according to a particular and non-limiting embodiment of the present invention. Description of embodiment examples

[0035] A method and a control device for an adaptive speed regulation system embedded in a vehicle will now be described in what follows with joint reference to Figures 1 to 4. The same elements are identified with the same reference signs throughout the description that follows.

[0036] 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.

[0037] According to a particular and non-limiting embodiment of the present invention, a method for controlling an adaptive cruise control system installed in a vehicle, referred to as the ACC system, and comprising a screen, includes receiving initial data representing an ACC system activation state and a current setting level for a target inter-vehicle distance, referred to as the target DIV, of the ACC system, and receiving second data representing a paddle press. An adjusted setting level for the target DIV is then determined (43) based on the initial and second data points, and the ACC system is controlled (44) according to the adjusted setting level.

[0038] Fig. 1 illustrates a vehicle 10, for example a motor vehicle, travelling on a portion of road in environment 1. According to other examples, the vehicle 10 corresponds to a coach, a bus, a truck, a utility vehicle or a motorcycle, that is to say a motorized land vehicle.

[0039] 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.

[0040] Vehicle 10 corresponds to a vehicle operating under the full supervision of a driver or operating in a semi-autonomous mode. Vehicle 10 operates according to an autonomy level of 0 or according to an autonomy level ranging from 1 to 2, for example, according to the scale defined by the American federal agency which has established 5 levels of autonomy ranging from 1 to 5, level 0 corresponding to a vehicle with no autonomy, whose driving is under the full supervision of the driver, level 1 corresponding to a vehicle with a minimal level of autonomy, whose driving is under the supervision of the driver with minimal assistance from an ADAS system, and level 5 corresponding to a fully autonomous vehicle.

[0041] The 5 levels of autonomy in the classification of the federal agency responsible for road safety are: - level 0: no automation, the vehicle driver fully controls the main functions of the vehicle (engine, accelerator, steering, brakes); - Level 1: Driver assistance; automation is active for certain vehicle functions, while the driver retains overall control over vehicle operation; cruise control is included in this level, along with other driver assistance features. such as ABS (anti-lock braking system) or ESP (electronic stability program); - level 2: automation of combined functions, the control of at least two main functions is combined in the automation to replace the driver in certain situations; for example, adaptive cruise control combined with lane centering allows a vehicle to be classified as level 2, as does automatic parking assist; - level 3: limited autonomous driving, the driver can cede complete control of the vehicle to the automated system which will then be in charge of critical safety functions; however, autonomous driving can only take place under certain specific environmental and traffic conditions (only on highways for example); - level 4: fully autonomous driving under certain conditions, the vehicle is designed to independently perform all critical safety functions over a complete journey; the driver provides a destination or navigation instructions but is not required to be available to take back control of the vehicle; - Level 5: Completely autonomous driving without driver assistance in all circumstances.

[0042] According to the example in [Fig.1], the vehicle 10 is travelling on a section of road with two traffic lanes 1001, 1002. The vehicle 10 is travelling for example on the right traffic lane 1001.

[0043] The concepts of right and left are defined according to the direction of travel of the vehicle 10. The example in [Fig. 1] corresponds to an example in which vehicles travel on the right, as in France. However, the invention is not limited to such an example and extends to all road configurations, including those where vehicles travel on the left.

[0044] The vehicle 10 includes, in particular, one or more driver assistance systems, known as ADAS (Advanced Driver-Assistance System), including an automatic speed control system, known as ACC. Such an ADAS system is configured to assist, or even replace, the driver of the vehicle 10 in controlling the vehicle 10 during its journey.

[0045] The first vehicle 10 carries, for example, one or more of the following sensors: - one or more millimeter-wave radars arranged on the vehicle 10, for example at the front, at the rear, on each front / rear corner of the vehicle; each radar is adapted to emit electromagnetic waves and to receive the echoes of these waves reflected by one or more objects (for example, the second vehicle 11 located in front of the vehicle 10 as shown in [Fig. 1]), in order to detect obstacles and their distances from the vehicle 10; and / or - one or more LIDAR(s) (from the English "Light Detection And Ranging", or "Detection and estimation of distance by light" in French), a LIDAR sensor corresponding to an optoelectronic system composed of a laser emitter device, a receiver device including a light collector (to collect the part of the light radiation emitted by the emitter and reflected by any object located in the path of the light rays emitted by the emitter) and a photodetector which transforms the collected light into an electrical signal; a LIDAR sensor thus makes it possible to detect the presence of objects (for example the second vehicle 11) located in the emitted light beam and to measure the distance between the sensor and each detected object; and / or - one or more cameras (associated or not with a depth sensor) for the acquisition of one or more images of the environment around the vehicle 10 located in the field of vision of the camera(s).

[0046] The data obtained from this sensor or these sensors vary depending on the type of sensor. In the case of a radar or a LiDAR, the data corresponds, for example, to distance data between points on the detected object and the sensor. Each detected object is thus represented by a point cloud (each point corresponding to a point on the object receiving the radiation emitted by the sensor and reflecting at least part of this radiation), the point cloud representing the envelope (or part of the envelope) of the detected object as seen by the sensor and ultimately by the vehicle 10 carrying the sensor. In the case of a video camera, the data corresponds to data associated with each pixel of the acquired image(s), for example, grayscale values ​​coded on, for example, 8, 10, 12 or more bits for each color channel, for example RGB (Red, Green, Blue).This data allows, for example, the determination of the successive positions taken by an object moving in environment 1, for example the second vehicle 11, and the deduction of one or more dynamic parameters of the moving object such as position, speed and / or acceleration. This data also allows the determination of the lines on the ground to, for example, contribute to determining whether the second vehicle 11 and vehicle 10 belong to the same traffic lane.

[0047] The data acquired by the on-board sensor(s) feeds, for example, one or more on-board systems in the vehicle 10, including the ACC system.

[0048] According to the example in [Fig.1], vehicle 10 follows a second vehicle 11, at a distance d, the second vehicle 11 traveling on the same traffic lane 1001 as vehicle 10 and in the same direction as vehicle 10.

[0049] The second vehicle 11 corresponds to a target object, also called the target vehicle, selected by the ACC system of the first vehicle 10.

[0050] A distance between vehicle 10 and the second vehicle 11 constitutes a setpoint provided to the ACC system, this distance being commonly referred to as the target inter-vehicle distance (IVD). According to one variant, the setpoint is an inter-vehicle time (IVT); however, this setpoint is equivalent to the target IDD setpoint, the speed of vehicle 10 being the proportionality coefficient between these two setpoints.

[0051] [Fig.2] schematically illustrates a vehicle interior, for example vehicle 10 of [Fig.1], according to a particular and non-limiting embodiment of the present invention.

[0052] The vehicle 10 carries one or more pallets 20, placed for example behind a steering wheel 21 so as to be accessible to the driver of the vehicle 10 without having to take his hands off the steering wheel 21.

[0053] According to one particular embodiment, the number of paddles is two.

[0054] Such paddles are, for example, present on internal combustion engine vehicles, these paddles being used to change the gear ratios of a gearbox, or on electric vehicles to adjust the braking level of one or more electric motor(s) during vehicle deceleration when the vehicle's ACC system is not active.

[0055] The paddles function in the same way as a button; pressing one of the faces of a paddle or moving a paddle then generates a transmission of data, for example to a computer, via one or more communication buses of the vehicle's on-board system 10, for example a CAN data bus (from the English "Controller Area Network" or in French "Réseau de contrôlers"), CAN FD (from the English "Controller Area Network Flexible Data-Rate" or in French "Réseau de contrôlers à débit de données flexible"), FlexRay (according to the ISO 17458 standard), Ethernet (according to the ISO / IEC 802-3 standard) or LIN (from the English "Local Interconnect Network" or in French "Réseau interconnecté local").

[0056] According to one particular embodiment, the vehicle 10 is equipped with a screen 23, corresponding, for example, to an LCD (Liquid Crystal Display), TFT (Thin-Film Transistor), or OLED (Organic Light-Emitting Diode) type screen. The screen 23 is, for example, arranged in the center of the dashboard 22, for example above a central panel. Of course, the position of the screen 23 is not limited to this example; the screen 23 can be arranged in any position, for example on the central panel or behind the steering wheel 21.

[0057] The screen 23 allows content to be displayed for the driver and passengers of the vehicle. According to one embodiment, the screen 23 is also configured to allow the driver and / or passengers of the vehicle 10 to interact with one or more systems embedded in the vehicle via a human-machine interface (HMI) displayed on screen 23. For example, screen 23 allows control of the vehicle's infotainment system, also called IVI (In-Vehicle Infotainment) system.

[0058] According to another example, not illustrated here, the screen 23 is not integrated into the passenger compartment 10 but corresponds to a screen of a mobile communication device, such as a smartphone or a tablet, connected in communication, for example wirelessly, with the vehicle's on-board system.

[0059] A control process for an adaptive speed regulation system on board the vehicle 10, called the ACC system, is advantageously implemented by the vehicle 10, i.e. by a computer or a combination of computers of the vehicle 10's on-board system, for example by the computer or computers in charge of controlling the vehicle 10's ACC system.

[0060] In a first operation, initial data representative of an activation state of the ACC system and a current setting level of a target inter-vehicle distance, called target DIV, of the ACC system are received.

[0061] The ACC system has two activation states, a first state called "active", i.e. that a target vehicle is present in front of vehicle 10 and selected, the second vehicle 11, the ACC system automatically adapting the speed of vehicle 10 to that of the second vehicle 11 which precedes it to maintain a constant distance equal to the target DIV, and a second state "inactive" where the ACC system is not in operation, i.e. that no target vehicle is selected for example.

[0062] The target DIV is the distance at which vehicle 10 must follow the second vehicle 11. It is determined according to the current setting level. This is, for example, selected by the driver of vehicle 10 from a set of at least two setting levels, each setting level in the set representing a unique target DIV.

[0063] The activation status of the ACC system is for example displayed on the screen 23 mounted in the vehicle 10 and represented in the form of an icon associated with the ACC system, similarly the setting level is for example represented in the form of a graphic object on the screen 23, also showing a number of lines or rectangles determined according to the setting level.

[0064] According to a particular embodiment, the at least two adjustment levels of the assembly are ordered so as to classify the target DIVs in an increasing order from a first adjustment level representing a minimum target DIV to a last adjustment level representing a maximum target DIV.

[0065] The set of adjustment levels thus forms an ordered list, the adjustment levels being classified from a first level to a last level, whose target IVDs are classified in ascending order from a minimum target IVD to a maximum target IVD.

[0066] Thus, by traversing the list from the first level to the last level, the target IVDs are traversed in an increasing manner.

[0067] Other levels are defined, for example, between the first and last levels, for example an intermediate level. The target DIV of an intermediate level is then distinct from the minimum and maximum target DIVs and is between these two distance values.

[0068] For example, if the set of levels comprises 3 levels, then the levels are ordered in this order: - a first level corresponding to the minimum target DIV, - an intermediate level corresponding to a target DIV between the minimum target DIV and the maximum target DIV, - a final level corresponding to the maximum target DIV.

[0069] A different graphic object is displayed, for example, on screen 23, for example showing a number of lines defined according to the adjustment level: - 1 line for the first level, - 2 traits for the intermediate level, and - 3 traits for the last level.

[0070] According to another example, if the set comprises 5 levels, then the levels are ordered in this order: - a first level corresponding to the minimum target DIV, - a second level corresponding to a second target DIV, - a third level corresponding to a third target DIV, - a fourth level corresponding to a fourth target DIV, - a final level corresponding to the maximum target DIV, with: Minimum target DIV < second target DIV < third target DIV < fourth target DIV < maximum target DIV.

[0071] The minimum target DIV is thus the smallest distance of the set of target DIVs. It is, moreover, defined in such a way as to guarantee a sufficient level of safety for the vehicles 10, 11 and their occupants.

[0072] The maximum target DIV is the greatest distance of all target DIVs. It is, for example, defined according to the range of a sensor 101 of the vehicle 10.

[0073] In a second operation, second data representing a support on a pallet 20 are received.

[0074] According to a particular embodiment, the second data includes data representative of the identification of a pallet among a first and a second pallet.

[0075] In a third operation, an adjusted level of the target IVD is determined based on the first and second data.

[0076] The list or set of adjustment levels is traversed in a "normal" traversal direction from the first adjustment level to the last adjustment level, with the corresponding target DIVs then being traversed in ascending order.

[0077] According to a first particular embodiment corresponding to the use of two pallets, called first and second pallets: - the adjusted setting level is the setting level of the assembly following the current setting level when the first paddle is pressed and the current setting level is different from the last setting level, and - the adjusted setting level is the setting level of the assembly preceding the current setting level when the second paddle is pressed and the current setting level is different from the first setting level.

[0078] Here, "next" refers to the adjustment level located after the current adjustment level in the list or in the set of ordered adjustment levels traversed in the "normal" direction. The target DIV corresponding to the adjusted adjustment level is then greater than the target DIV corresponding to the current adjustment level.

[0079] Here, "preceding" means the adjustment level located before the current adjustment level in the list or in the set of ordered adjustment levels traversed in the "normal" direction. The target DIV corresponding to the adjusted adjustment level is then lower than the target DIV corresponding to the current adjustment level.

[0080] In this first embodiment and according to an example embodiment, an adjusted setting level is the current setting level, that is to say, the target DIV corresponding to the adjusted setting level remains identical to the target DIV corresponding to the current setting level, when: - the support is applied to the first pallet and the current adjustment level is the last adjustment level, or - the support is made on the second pallet and the current adjustment level is the first adjustment level.

[0081] In this first embodiment and according to another example of an embodiment: - the adjusted setting level is the first setting level, when the pressure is applied to the first pallet, and the current setting level is the last setting level, and - the adjusted setting level is the last setting level, when the second paddle is pressed and the current setting level is the first setting level.

[0082] According to another embodiment corresponding to the use of a single pallet: - the adjusted setting level is the setting level of the assembly following the current setting level when pressure is applied to the pallet and the current setting level is different from the last setting level, and - the adjusted setting level is the first setting level, when the pressure is applied to the first pallet and the current setting level is the last setting level.

[0083] In a fourth operation, the ACC system is controlled according to the adjusted setting level.

[0084] When the ACC system is in an active state, it receives the adjusted target DIV as its setpoint. The ACC system then sends a command to the vehicle's powertrain 10 to: - accelerates to approach the second vehicle 11 if the adjusted target DIV is less than the current target DIV and then maintains a distance from the second vehicle 11 equal to the adjusted target DIV, - decelerates to move away from the second vehicle 11 if the adjusted target DIV is greater than the current target DIV and then maintains a distance from the second vehicle 11 equal to the adjusted target DIV, or - maintains a distance from the second vehicle 11 equal to the adjusted target DIV equal to the current target DIV.

[0085] A graphic object displayed on screen 23 is for example updated to show a number of lines adapted to the adjusted setting level.

[0086] A driver of the vehicle 10 thus has a means of adjusting the DIV of an adaptive speed control system integrated into the vehicle 10 in an intuitive and ergonomic way. They are thus able to modify the target DIV using paddles 20 on the steering wheel without having to take their eyes off the road and without letting go of the steering wheel 21. Setting a target DIV of the ACC system is therefore simple and safe.

[0087] Figure 3 schematically illustrates a device 3 configured to control an adaptive cruise control system installed in a vehicle, for example, the vehicle 10 of Figure 1, according to a particular and non-limiting embodiment of the present invention. The device 3 corresponds, for example, to a device installed in the first vehicle 10, for example, the ACC system control unit.

[0088] Device 3 is, for example, configured to carry out the operations described opposite Figures 1 to 2 and / or the steps of the process 4 described opposite [Fig. 4]. Examples of such a device 3 include, but are not limited to, a 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. The elements of device 3, individually or in combination, can be integrated into a single integrated circuit, into several integrated circuits, and / or into discrete components. Device 3 can be implemented as electronic circuits, software (or computer) modules, or a combination of electronic circuits and software modules.

[0089] The device 3 comprises one (or more) processor(s) 30 configured to execute instructions for carrying out the steps of the process and / or for executing instructions from the software embedded in the device 3. The processor 30 may include integrated memory, an input / output interface, and various circuits known to those skilled in the art. The device 3 further comprises at least one memory 31, 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.

[0090] 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 31.

[0091] According to various particular and non-limiting embodiments, the device 3 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.

[0092] According to a particular and non-limiting embodiment, the device 3 includes a block 32 of interface elements for communicating with external devices, for example a remote server or the "cloud", or the vehicle 10 when the device 3 corresponds to a smartphone or a tablet for example. The interface elements of block 32 include one or more of the following interfaces: - radio frequency (RF) interface, for example of the Wi-Fi® type (according to IEEE 802.11), for example in the 2.4 or 5 GHz frequency bands, or of the Bluetooth® type (according to IEEE 802.15.1), in the 2.4 GHz frequency band, or of the 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).

[0093] According to another particular and non-limiting embodiment, the device 3 includes a communication interface 33 which enables communication with other devices (such as other computers in the embedded system or embedded sensors) via a communication channel 330. The communication interface 33 corresponds, for example, to a transmitter configured to transmit and receive information and / or data via the communication channel 330.Communication interface 33 corresponds for example to a wired network of type CAN (Controller Area Network), CAN FD (Controller Area Network Flexible Data-Rate), FlexRay (standardized by ISO 17458), Ethernet (standardized by ISO / IEC 802-3) or LIN (Local Interconnect Network).

[0094] According to a particular and non-limiting embodiment, the device 3 can provide output signals to one or more external devices, such as a display screen 23, touch-sensitive or not, and / or other peripherals via respective output interfaces. In one variant, one or more of the external devices is integrated into the device 3.

[0095] Figure 4 illustrates a flowchart of the different steps of a method 4 for controlling a display system of a vehicle, for example of vehicle 10, according to a particular and non-limiting embodiment of the present invention. The method 4 is implemented, for example, by a device embedded in the vehicle 10 or by the device 3 of Figure 3.

[0096] In a first step 41, initial data representative of an activation state of the ACC system and a current setting level of a target inter-vehicle distance, referred to as target DIV, of the ACC system are received.

[0097] In a second step 42, second data representing a support on a pallet 20 are received.

[0098] In a third step 43, an adjusted level of the target IVD is determined based on the first and second data.

[0099] In a fourth step 44, the ACC system is controlled according to the adjusted setting level.

[0100] According to one variant, the variants and examples of the operations described in relation to Figures 1 to 2 apply to the steps of process 4 of [Fig.4].

[0101] The present invention also relates to an adaptive speed control system for vehicles comprising device 3 of [Fig.3].

[0102] The present invention also relates to a vehicle, for example a motor vehicle or more generally a land motor vehicle, comprising the device 3 of [Fig.3] or the adaptive speed control system for vehicles above.

Claims

Demands

1. A method for controlling an adaptive speed control system installed in a vehicle (10), referred to as the ACC system, said method comprising the following steps: - receiving (41) first data representing an activation state of said ACC system and a current setting level of a target inter-vehicle distance, referred to as the target DIV, of the ACC system; - receiving (42) second data representing the pressing of a paddle (20); - determining (43) an adjusted setting level of said target DIV based on said first and second data; - controlling (44) the ACC system based on said adjusted setting level, said second data comprising data representing the identification of a paddle from among a first and a second paddle, said current setting level and said adjusted setting level belonging to a set of at least two setting levels,each adjustment level of the assembly being representative of a unique target DIV, the at least two adjustment levels of the assembly being ordered so as to classify the target DIVs in ascending order from a first adjustment level representing a minimum target DIV to a last adjustment level representing a maximum target DIV, a direction of travel of said assembly corresponding to a direction from the first adjustment level to the last adjustment level: - said adjusted adjustment level being the adjustment level of said assembly following said current adjustment level when said pressure is applied to said first pallet and said current adjustment level is different from said last adjustment level,and - said adjusted setting level being the setting level of said assembly preceding said current setting level when said pressure is applied to said second paddle and said current setting level is different from said first setting level.

2. A method according to claim 1, wherein said adjusted setting level is said current setting level when: - said support is made on said first pallet and the current adjustment level is the last adjustment level, or - said support is made on said second pallet and the current adjustment level is the first adjustment level.

3. A method according to any one of claims 1 or 2, wherein said ACC system is controlled when said ACC system is in an active state.

4. Computer-readable recording medium on which is recorded a computer program comprising instructions for carrying out the steps of the process according to claim 1 or 2.

5. Device (3) for controlling a vehicle aerodynamic performance indication system, said device (3) comprising a memory (31) associated with at least one processor (30) configured for carrying out the steps of the method according to any one of claims 1 or 2.

6.

7. Vehicle comprising device (3) according to claim 5. Vehicle according to claim 6, said vehicle corresponding to an electric vehicle.

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