EP4486614A1 - Procédé et dispositif de contrôle de sélection d'un véhicule cible d'un système de régulation adaptative de vitesse d'un véhicule - Google Patents
Procédé et dispositif de contrôle de sélection d'un véhicule cible d'un système de régulation adaptative de vitesse d'un véhiculeInfo
- Publication number
- EP4486614A1 EP4486614A1 EP23703094.5A EP23703094A EP4486614A1 EP 4486614 A1 EP4486614 A1 EP 4486614A1 EP 23703094 A EP23703094 A EP 23703094A EP 4486614 A1 EP4486614 A1 EP 4486614A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- distance
- threshold value
- traffic lane
- determined threshold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/14—Adaptive cruise control
- B60W30/16—Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18163—Lane change; Overtaking manoeuvres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/04—Traffic conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/12—Lateral speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/14—Yaw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/53—Road markings, e.g. lane marker or crosswalk
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2554/00—Input parameters relating to objects
- B60W2554/40—Dynamic objects, e.g. animals, windblown objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2554/00—Input parameters relating to objects
- B60W2554/80—Spatial relation or speed relative to objects
- B60W2554/801—Lateral distance
Definitions
- the present invention claims the priority of French application 2201756 filed on 02.28.2022, the content of which (text, drawings and claims) is incorporated herein by reference.
- the present invention relates to methods and devices for controlling the selection of a target vehicle of an adaptive cruise control system of a vehicle, in particular a motor vehicle.
- the present invention also relates to a method and a device for controlling an adaptive cruise control system of a vehicle.
- the present invention also relates to a method and a device for controlling a vehicle, in particular an autonomous vehicle, incorporating an adaptive speed regulation system for a vehicle.
- ADAS Advanced Driver-Assistance System
- ADAS Advanced Driving Assistance System
- the adaptive cruise control system known as ACC (Adaptive Cruise Control)
- ACC Adaptive Cruise Control
- Such an ACC system determines one or more acceleration setpoints as a function of a speed setpoint and information relating to the environment of the vehicle, the acceleration setpoint(s) being capable of regulating the speed of the vehicle in an adaptive manner , that is to say taking into account the environment of the vehicle.
- This environmental information corresponds for example to the distance between the vehicle equipped with the ACC system and a vehicle traveling in front, to the speed (for example relative) of the vehicle traveling in front, to the acceleration (or to the deceleration) of the vehicle traveling ahead and/or at a regulatory speed limit.
- Such a vehicle is called a target vehicle or target object of the ACC system.
- the acceleration setpoint(s) are for example determined from a control law based on estimates of the torque supplied by a powertrain (for example a heat or electric motor) to one or more wheels of the vehicle and of the current acceleration of the vehicle.
- a powertrain for example a heat or electric motor
- the environment information of a vehicle is for example obtained from sensors on board the vehicle, such as radars for example. This information is particularly important for a vehicle, for example to improve the safety of the vehicle by taking into account the environment which surrounds it, in particular other vehicles.
- the selection of the target vehicle can be problematic. For example, the selection between a first vehicle traveling upstream on the vehicle's current traffic lane and a second vehicle traveling upstream on the adjacent traffic lane may turn out to be erroneous, or even this selection may oscillate between the first vehicle and the second vehicle
- the present invention relates to a method for controlling the selection of a target vehicle of an adaptive speed regulation system, called the ACC system, of a vehicle, the vehicle traveling on a first traffic lane of a road comprising several lanes of traffic in the same direction of traffic, the road further comprising a second lane adjacent to the first traffic lane along one side of the first traffic lane, the first traffic lane and the second traffic lane being separated by a dividing line, the method comprising the following steps:
- the conditioning of the selection of a target vehicle from parameters representative of the behavior of the vehicle with respect to the line of separation between two adjacent traffic lanes makes it possible to determine with greater reliability which vehicle should be considered as the target vehicle of the ACC system.
- Improved target vehicle selection improves the operation of the ACC system and increases the safety of the vehicle and its passengers.
- the second vehicle is selected when a first set of conditions is fulfilled at a time instant for which the counter is lower than the fourth threshold value, the first set of conditions comprising the following conditions:
- the heading of the vehicle is greater than the second determined threshold value and the heading is negative when the side corresponds to the left side and the heading is positive when the side corresponds to the right side;
- the first vehicle is selected when the first set of conditions is not fulfilled as long as the counter is below the fourth determined threshold value.
- the first vehicle is selected when, in addition to a second set of conditions, it is fulfilled when the counter reaches the fourth determined threshold value, the second set of conditions comprising the following conditions:
- a lateral speed of the vehicle is determined from a longitudinal speed of the vehicle and the heading of the vehicle.
- the method further comprises a step of detecting the separation line from image data of the road, the virtual line being defined by applying the determined distance to the detected separation line.
- the present invention relates to a device for controlling the selection of a target vehicle of an adaptive cruise control system, known as the ACC system, of a vehicle, the device comprising a memory associated with a processor configured to the implementation of the steps of the method according to the first aspect of the present invention.
- the ACC system adaptive cruise control system
- 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.
- the present invention relates to a computer program which comprises instructions adapted for the execution of the steps of the method according to the first aspect of the present invention, this in particular when the computer program is executed by at least one processor.
- Such a computer program can use any programming language, and be in the form of 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.
- the present invention relates to a computer-readable recording medium on which is recorded a computer program comprising instructions for the execution of the steps of the method according to the first aspect of the present invention.
- the recording medium can be any entity or device capable of storing the program.
- the medium may comprise a storage means, such as a ROM memory, a CD-ROM or a ROM memory of the microelectronic circuit type, or even a magnetic recording means or a hard disk.
- this recording medium can also be a transmissible medium such as an electrical or optical signal, such a signal being able to be conveyed via an electrical or optical cable, by conventional or hertzian radio or by self-directed laser beam or by other ways.
- the computer program according to the present invention can in particular be downloaded from an Internet-type network.
- 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 method in question.
- FIG. 1 schematically illustrates a portion of road on which a vehicle carrying an ACC system travels, according to a particular and non-limiting embodiment of the present invention
- FIG. 3 schematically illustrates a second path of the vehicle of Figure 1 on the road portion of Figure 1, according to a particular and non-limiting embodiment of the present invention
- FIG. 4 illustrates a flowchart of the different steps of a process for selecting a target vehicle of the ACC system of the vehicle of FIG. 1, according to a particular and non-limiting example embodiment of the present invention.
- FIGS. 1 to 6 A method and a device for controlling the selection of a target vehicle of an ACC system of a vehicle will now be described in the following with reference together with FIGS. 1 to 6. Like elements are identified with like reference signs throughout the following description.
- the selection of a target vehicle of an ACC system by the vehicle carrying the ACC system comprises the detection of the crossing of a virtual line by the vehicle.
- a virtual line is defined on a first traffic lane on which the vehicle travels with respect to a dividing line between the first traffic lane and a second traffic lane adjacent to the first lane.
- a counter is triggered on detection of this virtual line, for example to measure or count the time elapsed since the crossing.
- the vehicle On detection of the crossing, the vehicle also determines first information representative of the lateral speed of the vehicle, second information representative of the heading of the vehicle and third information representative of a difference between the absolute value of a first distance and the value absolute of a second distance.
- Such a first distance corresponds to the distance between the dividing line and a front wheel of the vehicle on the dividing line side and the second distance corresponds to a distance between the dividing line and a rear wheel of the vehicle on the dividing line side. of seperation.
- This first information, second information, third information and the counter are respectively compared with first, second, third and fourth threshold values to determine whether the target vehicle to be selected by the ACC system corresponds to a first vehicle traveling on the first traffic lane in front of the vehicle or to a second vehicle traveling in the second traffic lane in front of the vehicle.
- the conditioning of the selection of a target vehicle on the basis of parameters representative of the behavior of the vehicle with respect to the line of separation between two adjacent traffic lanes makes it possible to determine with greater reliability which vehicle must be considered as the target vehicle of the system ACC.
- Improved target vehicle selection improves the operation of the ACC system and increases the safety of the vehicle and its passengers.
- FIG. 1 illustrates a vehicle 10, for example a motor vehicle, traveling on a portion of road 100.
- the vehicle 10 corresponds to a car, a bus, a truck, a commercial vehicle or a motorcycle, c ie to a vehicle of the motorized land vehicle type.
- the vehicle 10 corresponds to a vehicle circulating under the total supervision of a driver or circulating in an autonomous or semi-autonomous mode.
- the vehicle 10 circulates according to a level of autonomy equal to 0 or according to a level of autonomy ranging from 1 to 5 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 minimum 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.
- - level 0 no automation, the driver of the vehicle fully controls the main functions of the vehicle (engine, accelerator, steering, brakes);
- driver assistance automation is active for certain vehicle functions, the driver retaining overall control over driving the vehicle vehicle ; cruise control is part of this level, like other aids such as TABS (anti-lock braking system) or ESP (programmed electro-stabilizer);
- TABS anti-lock braking system
- ESP programmed electro-stabilizer
- 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 assistance;
- level 3 limited autonomous driving, the driver can hand over 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 determined environmental and traffic conditions (only on the motorway, for example);
- the vehicle 10 circulates in a semi-autonomous or autonomous mode, that is to say with a level of autonomy greater than or equal to 2 according to the above classification.
- the second traffic lane is arranged to the left of the first traffic lane 101 .
- the invention is not limited to such an example but extends to a scenario where the second traffic lane 102 is to the right of the first lane 101, or in a scenario where the first lane 101 is surrounded on each side by an adjacent lane.
- a first vehicle 11 also travels on the first traffic lane 101, upstream of the vehicle 10, that is to say in front of the vehicle 10 according to the direction of travel of the vehicle 10.
- a second vehicle 12 also travels on the second traffic lane 102, upstream of the vehicle 10, that is to say in front of the vehicle 10 according to the direction of travel of the vehicle 10.
- the vehicle 10 embeds for example one or more of the following sensors:
- a LIDAR sensor corresponding to an optoelectronic system composed of a laser transmitter device, a receiver device comprising a light collector (to collect the part of the light radiation emitted by the emitter and reflected by any object located on 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 first vehicle 11 and the second vehicle 12) located in the emitted light beam and to measure the distance between the sensor and each object detected; and or
- the data obtained from this or these sensors varies according to the type of sensor.
- the data correspond for example to distance data between points of the detected object and the sensor.
- Each detected object is thus represented by a cloud of points (each point corresponding to a point of the object receiving the radiation emitted by the sensor and reflecting at least part of this radiation), the cloud of points representing the envelope (or a part of the envelope) of the detected object as seen by the sensor and ultimately by the vehicle 10 carrying the sensor.
- the data correspond to data associated with each pixel of the acquired image or images, for example gray level values coded on for example 8, 10, 12 or more bits for each color channel, for example RGB (from English “Red, Green, Blue” or in French “Rouge, vert, blue”).
- RGB from English “Red, Green, Blue” or in French “Rouge, vert, blue”.
- the vehicle 10 also embeds a ground marking detection system.
- a ground marking detection system is for example coupled to a semi-automatic lane change system, known as the SALC (Semi-Automatic Lane Change) system, or integrated into the SALC system.
- SALC Semi-Automatic Lane Change
- Such a ground marking detection system receives data from one or more cameras on board the vehicle 10 and configured for the acquisition of images of the traffic lane taken by the vehicle 10, for example the portion of road located at the front and/or on the sides of the vehicle 10.
- the ground marking detection system is thus configured to detect the ground markings 1000 in the environment of the vehicle 10.
- Image processing is applied to the images obtained of the camera(s) of the ground marking detection system to determine the presence of lines on the ground and to classify these lines into different categories, for example to determine whether the lines on the ground correspond to shore lines or center lines by example.
- An example of image processing to detect the lines on the ground is for example described in the document WO2017194890A1.
- the floor marking detection system identifies, for example, the lines in continuous lines or in dotted lines.
- FIG. 4 illustrates a flowchart of the different steps of the process for selecting a target vehicle of the ACC system, according to a particular and non-limiting example embodiment of the present invention.
- a first operation 401 the ACC system of the vehicle 10 is activated, for example by the driver of the vehicle 10 via a communication interface.
- control such as a control lever, a physical button, a virtual button of a graphical human-machine interface (HMI) displayed on a screen in the vehicle 10 or a voice HMI by pronouncing a voice command.
- HMI graphical human-machine interface
- a virtual line is defined in the first traffic lane 101 at a determined distance from the separation line 1000.
- Such a virtual line 2000 is illustrated in FIGS. 2 and 3 by a dotted line.
- This virtual line corresponds to a line not drawn on the ground but determined or defined by the vehicle 10.
- This virtual line follows the layout of the separation line 1000, at a determined distance from the latter (for example at 0.5, 0.7, 0.8 or 1 m) in the first traffic lane 101 .
- the determination of the virtual line 1000 includes for example the detection of the separation line 1000, for example from image data of the road 100 received from one or more cameras on board the vehicle 10.
- the coefficients Co, Ci, C2 and C3 come from the on-board camera or cameras of the vehicle 10 or from the ground marking detection system using images from this or these cameras.
- the coefficient Co represents for example a distance between the center of the vehicle 10 and each delimitation considered.
- the coefficient Ci represents an angle between the trajectory of the vehicle 10 and a tangent to the taxiway (the heading).
- the coefficient C2 represents a radius of curvature and the coefficient C3 represents a derivative of this radius of curvature.
- the vehicle 10 is able to define this virtual line 2000.
- the vehicle 10 verifies whether or not the virtual line 2000 has been crossed by the vehicle 10.
- Such a verification is for example implemented at regular intervals, for example every 20, 50, 100, 200, 500 or 1000 ms.
- the verification includes, for example, a measurement or a determination of the distance between the front wheel of the vehicle 10 located on the side of the separation line 1000, that is to say the left front wheel according to the example of FIG. 1, and the separation line 1000.
- the verification comprises for example a measurement of the distance between the front wheel of the vehicle 10 located on the side of the separation line 1000, that is to say the left front wheel according to the example of figure 1, and the virtual line 2000.
- the distance is determined according to the transverse axis Y of the road 100, which transverse axis Y is orthogonal to a longitudinal axis X of the road 100.
- the determination of this distance makes it possible to detect the crossing of the virtual line 2000.
- the process continues with the fourth operation.
- a counter is detected on detection of the crossing of the virtual line 2000 by the vehicle 10.
- a counter corresponds for example to a time counter making it possible to calculate the time elapsed since the crossing of the virtual line 2000 by vehicle 10.
- first information representative of the lateral speed of the vehicle 10 is determined.
- second information representative of the heading of the vehicle 10 is determined.
- third information representing a difference between the absolute value of a first distance and the absolute value of a second distance is determined.
- the first distance corresponding to a distance between the separation line 1000 and a front wheel of the vehicle 10 on the side of the separation line 1000 that is to say the left front wheel according to the example of FIGS. 2 and 3
- the second distance corresponding to a distance between the dividing line and a rear wheel of the vehicle on the side of the dividing line that is to say the left rear wheel according to the example of FIGS. 2 and 3).
- the wheels of the vehicle 10 to be taken into consideration for the calculation of the first distance and the second distance would correspond to the right front wheel and the right rear wheel.
- the first information, second information and third information are for example determined at regular intervals, for example every 20, 50, 100, 200 or 500 ms.
- the lateral speed of the vehicle 10 (along the Y axis) is for example determined from the longitudinal speed of the vehicle 10 (along the X axis) and the heading of the vehicle 10.
- Vlat Viongi * sin(C1) with Viongi the longitudinal speed at the given instant and C1 the heading of vehicle 10 at the given instant.
- the first information is compared 406 with a first determined threshold value
- the second information is compared 407 with a second threshold value determined
- the third information is compared 408 with a third determined threshold value
- the counter is compared 409 with a fourth determined threshold value.
- the lateral speed of the vehicle 10 is lower than the first determined threshold value, which is representative of a determined lateral speed value.
- the heading of the vehicle 10 is lower than the second determined threshold value, which is representative of a determined heading value.
- the first threshold value, the second threshold value, the third threshold value and the fourth threshold value correspond for example to parameters of the ACC system and are for example stored in memory. According to a variant, one or more of these threshold values can be modified, for example via an MMI, by the driver or a person in charge of the maintenance of the ACC system and/or of the vehicle 10.
- the comparisons are for example implemented at regular intervals, for example every 20, 50, 100, 200 or 500 ms. According to a variant, the comparisons are implemented each time a first piece of information, second piece of information and/or third piece of information is determined.
- the first vehicle 11 or the second vehicle 12 is selected as the target vehicle of the ACC system according to the result of the comparisons of operations 406 to 409.
- the first vehicle 11 traveling in front of the vehicle 10 on the first traffic lane 101 is selected for the operation 410.
- the second vehicle 12 traveling in front of the vehicle 10 on the second traffic lane 102 is selected at operation 411.
- FIG. 2 schematically illustrates a first trajectory of the vehicle 10 leading to a selection of the second vehicle 12 as the target vehicle of the ACC system, according to a particular and non-limiting exemplary embodiment of the present invention.
- Time t2 illustrates the fourth determined threshold value corresponding to the duration value to which the counter is compared, which counter is triggered at time t1.
- the instant t2 corresponds to the deadline (the end) of a time interval starting at the instant t1 and lasting a determined duration, for example 2, 3, 5 or 10 s.
- FIG. 2 thus illustrates vehicle 10 at time t1 and vehicle 10 at time t3, vehicle 10 having followed first trajectory 200 between time t1 and time t3.
- time t3 is later than time t1 and before time t2.
- the heading of the vehicle 10 at time t3 is represented by an arrow 21 in FIG. 2 (and/or by an angle between this heading 21 and the longitudinal axis of the road 100 represented by the arrow 22 in FIG. 2) .
- heading 21 of vehicle 10 is said to be negative (angle between axis 21 and axis 22 clockwise) in that it corresponds to a lateral movement of vehicle 10 towards the LEFT.
- a heading is said to be positive (angle between the axis 21 and the axis 22 in the anti-clockwise direction) in that it corresponds to a lateral movement of the vehicle 10 to the right.
- the heading 21 of the vehicle 10 is greater than the second determined threshold value and the heading 21 is negative; And - the difference between the absolute value of the first distance (between the left front wheel of the vehicle 10 and the dividing line 1000) and the absolute value of the second distance (between the left rear wheel of the vehicle 10 and the dividing line 1000 ) is greater than the third determined threshold value; And
- - 13 is earlier than t2, i.e. the value of the counter at time t3 is lower than the fourth determined threshold value.
- the result of the comparisons described in operations 406 to 409 indicates that the vehicle 10 has actually made a lane change from the first lane of traffic 101 to the second lane of traffic 102 and that the conditions of the first set of conditions listed above are met to select the second vehicle 12 as the target vehicle of the ACC system of the vehicle 10.
- FIG. 3 schematically illustrates a second trajectory of the vehicle 10 leading to a selection of the first vehicle 11 as the target vehicle of the ACC system, according to a particular and non-limiting exemplary embodiment of the present invention.
- Time t2 illustrates the fourth determined threshold value corresponding to the duration value to which the counter is compared, which counter is triggered at time t1.
- the instant t2 corresponds to the deadline (the end) of a time interval starting at the instant t1 and lasting a determined duration, for example 2, 3, 5 or 10 s.
- FIG. 3 thus illustrates vehicle 10 at time t1 and vehicle 10 at time t3 subsequent to or equal to time t2, vehicle 10 having followed second trajectory 300 between time t1 and time t3.
- time t3 is later than time t1 and later than or equal to time t2.
- heading 21 of vehicle 10 is said to be negative (angle between axis 31 and axis 22 clockwise) in that it corresponds to a lateral movement of vehicle 10 towards the LEFT.
- the heading 21 of the vehicle 10 is lower than the second determined threshold value and the heading 21 is negative;
- - 13 is later than or equal to t2, i.e. the value of the counter at time t3 is greater than the fourth determined threshold value.
- the result of the comparisons described in operations 406 to 409 indicates that the vehicle 10 follows a trajectory close to the separation line 1000 but without making a perfectly identified lane change, i.e. say that it is considered that the vehicle 10 remains in its first traffic lane.
- the second set of conditions listed above are met to select the first vehicle 11 as the target vehicle of the ACC system of the vehicle 10.
- FIG. 5 schematically illustrates a device 5 configured to control the selection of a target vehicle of the ACC system on board a vehicle, for example the vehicle 10, according to a particular and non-limiting example embodiment of the present invention.
- the device 5 corresponds for example to a device on board the vehicle 10, for example a computer.
- the device 5 is for example configured for the implementation of the operations described with regard to FIGS. 1 to 4 and/or of the steps of the method described with regard to FIG. 6.
- Examples of such a device 5 comprise, without being limited, equipment on-board electronics such as a vehicle's on-board computer, an electronic calculator such as an ECU ("Electronic Control Unit"), a smart telephone (from the English "smartphone"), a tablet, a portable computer .
- the elements of device 5, individually or in combination, can be integrated in a single integrated circuit, in several integrated circuits, and/or in discrete components.
- the device 5 can be made in the form of electronic circuits or software (or computer) modules or else a combination of electronic circuits and software modules.
- the device 5 comprises one (or more) processor(s) 50 configured to execute instructions for carrying out the steps of the method and/or for executing the instructions of the software or software embedded in the device 5.
- the processor 50 can include integrated memory, an input/output interface, and various circuits known to those skilled in the art.
- the device 5 further comprises at least one memory 51 corresponding for example to a volatile and/or non-volatile memory and/or comprises a memory storage device which can comprise volatile and/or non-volatile memory, such as EEPROM, ROM , PROM, RAM, DRAM, SRAM, flash, magnetic or optical disk.
- the computer code of the on-board software or software comprising the instructions to be loaded and executed by the processor is for example stored on the memory 51 .
- the device 5 is coupled in communication with other similar devices or systems and/or with communication devices, for example a TCU (from the English “Telematic Control Unit” or in French “Telematic Control Unit”), for example via a communication bus or through dedicated input/output ports.
- a TCU from the English “Telematic Control Unit” or in French “Telematic Control Unit”
- a communication bus or through dedicated input/output ports.
- the device 5 comprises a block 52 of interface elements for communicating with external devices, for example a remote server or the “cloud” (or “cloud” in French).
- Block 52 interface elements include one or more of the following interfaces: - RF radiofrequency interface, for example of the Wi-Fi® type (according to IEEE 802.11), for example in the 2.4 or 5 GHz frequency bands, or of the Bluetooth® type (according to IEEE 802.15.1), in the band frequency at 2.4 GHz, or of the Sigfox type using UBN radio technology (Ultra Narrow Band, in French ultra narrow band), or LoRa in the 868 MHz frequency band, LTE (from English " Long-Term Evolution” or in French “Evolution à long terme”), LTE-Advanced (or in French LTE-advanced);
- USB interface from the English “Universal Serial Bus” or “Universal Serial Bus” in French);
- the device 5 comprises a communication interface 53 which makes it possible to establish communication with other devices (such as other computers of the on-board system or on-board sensors) via a channel communication interface 530.
- the communication interface 53 corresponds for example to a transmitter configured to transmit and receive information and/or data via the communication channel 530.
- the communication interface 53 corresponds for example to a wired network of the CAN (from the English “Controller Area Network” or in French “Réseau de Contrôliv”), CAN FD (from the English “Controller Area Network Flexible Data-Rate” or in French “Réseau de Contrôliv à Flow de Data Flexible” ), FlexRay (standardized by the ISO 17458 standard), Ethernet (standardized by the ISO/IEC 802-3 standard) or LIN (from the English “Local Interconnect Network”, or in French “Réseau interconnecté local”).
- the device 5 can supply output signals to one or more external devices, such as a display screen, touch-sensitive or not, one or more loudspeakers and/or other devices (projection system) through respective output interfaces.
- one or the other of the external devices is integrated into the device 5.
- FIG. 6 illustrates a flowchart of the different steps of a method for controlling the selection of a target vehicle of an adaptive speed regulation system, called the ACC system, of a vehicle traveling on a first traffic lane of a road comprising several lanes of traffic in the same direction of traffic, the road further comprising a second lane adjacent to the first traffic lane along one side of the first traffic lane, the first traffic lane and the second lane of circulation being separated by a dividing line.
- the method is for example implemented by a device on board the vehicle 10 or by the device 5 of FIG. 5.
- a first step 61 the crossing, by the vehicle, of a virtual line defined in the first traffic lane at a determined distance from the separation line is detected or determined.
- a counter is triggered on detection of the crossing of the virtual line.
- first information representative of the lateral speed of the vehicle, second information representative of the heading of the vehicle and third information representative of a difference between the absolute value of a first distance and the absolute value of a second distance are determined on detection of the crossing of the virtual line, the first distance corresponding to a distance between the line of separation and a front wheel of the vehicle on the side of the line of separation and the second distance corresponding to a distance between the line of separation and a rear wheel of the vehicle on the side of the separation line.
- a fourth step 64 the first information is compared with a first determined threshold value, the second information is compared with a second determined threshold value, the third information is compared with a third determined threshold value and the counter is compared with a fourth value determined threshold.
- a first vehicle or a second vehicle is selected as target vehicle of the ACC system according to at least one result of the comparison, the first vehicle traveling upstream of the vehicle in the first traffic lane and the second vehicle traveling upstream of the vehicle in the second traffic lane.
- the present invention is not limited to the exemplary embodiments described above but extends to a method for determining the current traffic lane of 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 the implementation of such a method.
- the present invention also relates to an ACC system comprising the device 5 of Figure 5.
- the present invention also relates to a vehicle, for example an automobile or more generally an autonomous land motor vehicle, comprising the device 5 of FIG. 5 or the ACC system above.
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Traffic Control Systems (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2201756A FR3133043B1 (fr) | 2022-02-28 | 2022-02-28 | Procédé et dispositif de contrôle de sélection d’un véhicule cible d’un système de régulation adaptative de vitesse d’un véhicule |
| PCT/FR2023/050054 WO2023161571A1 (fr) | 2022-02-28 | 2023-01-16 | Procédé et dispositif de contrôle de sélection d'un véhicule cible d'un système de régulation adaptative de vitesse d'un véhicule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4486614A1 true EP4486614A1 (fr) | 2025-01-08 |
Family
ID=81449108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23703094.5A Withdrawn EP4486614A1 (fr) | 2022-02-28 | 2023-01-16 | Procédé et dispositif de contrôle de sélection d'un véhicule cible d'un système de régulation adaptative de vitesse d'un véhicule |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4486614A1 (fr) |
| FR (1) | FR3133043B1 (fr) |
| WO (1) | WO2023161571A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2201756A5 (fr) | 1972-09-29 | 1974-04-26 | Balea Georges | |
| DE102011102437A1 (de) * | 2011-05-25 | 2012-11-29 | Audi Ag | Verfahren zum Betrieb eines längsführenden Fahrerassistenzsystems eines Kraftfahrzeugs und Kraftfahrzeug |
| DE102012210608A1 (de) * | 2012-06-22 | 2013-12-24 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Erzeugen eines Steuerparameters für ein Abstandsassistenzsystem eines Fahrzeugs |
| US20170123430A1 (en) * | 2015-10-30 | 2017-05-04 | Ford Global Technologies, Llc | In-path target selection during lane change |
| FR3051275A1 (fr) | 2016-05-13 | 2017-11-17 | Inst Vedecom | Procede de traitement d’image pour la reconnaissance de marquage au sol et systeme pour la detection du marquage au sol |
-
2022
- 2022-02-28 FR FR2201756A patent/FR3133043B1/fr active Active
-
2023
- 2023-01-16 WO PCT/FR2023/050054 patent/WO2023161571A1/fr not_active Ceased
- 2023-01-16 EP EP23703094.5A patent/EP4486614A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR3133043A1 (fr) | 2023-09-01 |
| WO2023161571A1 (fr) | 2023-08-31 |
| FR3133043B1 (fr) | 2024-01-12 |
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