EP4402031A1 - Procédé et dispositif de détermination d'une nouvelle accélération maximale d'un régulateur de vitesse d'un véhicule autonome - Google Patents
Procédé et dispositif de détermination d'une nouvelle accélération maximale d'un régulateur de vitesse d'un véhicule autonomeInfo
- Publication number
- EP4402031A1 EP4402031A1 EP22754122.4A EP22754122A EP4402031A1 EP 4402031 A1 EP4402031 A1 EP 4402031A1 EP 22754122 A EP22754122 A EP 22754122A EP 4402031 A1 EP4402031 A1 EP 4402031A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- sensor
- ego
- target vehicle
- acceleration
- 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- Withdrawn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
-
- 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
-
- 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
- B60W30/17—Control of distance between vehicles, e.g. keeping a distance to preceding vehicle with provision for special action when the preceding vehicle comes to a halt, e.g. stop and go
-
- 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
- B60W30/18018—Start-stop drive, e.g. in a traffic jam
-
- 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
- B60W60/00—Drive control systems specially adapted for autonomous road vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2310/00—Arrangements, adaptations or methods for cruise controls
- B60K2310/24—Speed setting methods
- B60K2310/242—Speed setting methods setting initial target speed, e.g. initial algorithms
-
- 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
- B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60W2420/40—Photo, light or radio wave sensitive means, e.g. infrared sensors
- B60W2420/403—Image sensing, e.g. optical camera
-
- 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
- B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60W2420/40—Photo, light or radio wave sensitive means, e.g. infrared sensors
- B60W2420/408—Radar; Laser, e.g. lidar
-
- 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
- B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60W2420/54—Audio sensitive means, e.g. ultrasound
-
- 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
- B60W2520/10—Longitudinal 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
- B60W2554/00—Input parameters relating to objects
- B60W2554/80—Spatial relation or speed relative to objects
- B60W2554/802—Longitudinal distance
-
- 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
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/10—Longitudinal speed
- B60W2720/106—Longitudinal acceleration
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/023—Avoiding failures by using redundant parts
Definitions
- the invention is in the field of autonomous vehicle driving assistance systems.
- the invention relates to the speed regulation of an autonomous vehicle when the vehicle restarts after having stopped.
- Vehicle means any type of vehicle such as a motor vehicle, moped, motorcycle, warehouse storage robot, etc.
- Autonomous driving of an “autonomous vehicle” means any process capable of assisting the driving of the vehicle. The method can thus consist in partially or totally directing the vehicle or providing any type of assistance to a natural person driving the vehicle. The process thus covers all autonomous driving, from level 0 to level 5 in the OICA scale, for Organization International des Constructeurs Automobiles.
- in front of a vehicle means any area located upstream of the vehicle in the direction of movement of the vehicle.
- it may be a predetermined area located in front of the front bumper of the vehicle, an area where a vehicle sensor is able to detect an object, etc.
- the processes capable of assisting the driving of the vehicle are also called ADAS (from the English acronym “Advanced Driver Assistance Systems”), ADAS systems or driver assistance systems.
- ADAS Advanced Driver Assistance Systems
- ADAS systems ADAS systems or driver assistance systems.
- an ACC Stop and Go function ACC from the English acronym “Adaptive Cruise Control”
- the ACC Stop and Go function is a level 1 driving assistance function which aims to maintain the vehicle, known as the ego vehicle, at a speed in accordance with a set speed defined by the driver and to manage tracking of a slower vehicle, the vehicle being tracked is said to be the target vehicle.
- This function makes it possible to brake the vehicle to a stop behind the target vehicle, to keep the vehicle stationary and to manage the relaunch phase, called the Go phase, when the vehicle is moving forward again.
- This function uses determinations of a position, a speed and/or an acceleration of the vehicle as well as a position, a speed and/or an acceleration of the target vehicle.
- the determination is obtained either directly by measurements from sensors conventionally present on a vehicle with an ACC function (tachometer, accelerometer, GPS, RADAR, etc.), or indirectly by processing the previous measurements.
- the relative distance between the target vehicle and the ego vehicle is determined.
- This determination also makes it possible to determine an inter-vehicle time, the time separating the two vehicles, using the speed of the ego vehicle, the ego vehicle following the target vehicle.
- an ACC Stop and Go function includes two means of perception of the environment allowing the detection of relevant targets: a RADAR and a camera (called CVM).
- the camera makes it possible to detect the presence of a pedestrian in front of the ACC vehicle more robustly than a RADAR.
- a RADAR may not be operational in unsuitable operating conditions (high load of calculations, overheating or hypothermia of electronic components, bugs, ...) or in unsatisfactory environmental conditions (very heavy rain, snow or mud obstructing/covering the RADAR ).
- the ACC function is deactivated and cannot be activated by a driver of the ego vehicle. Otherwise, if the camera is not operational, the ACC function remains activatable by a driver or remains activated. Thus, the ACC function can work even if the camera is not operational. As a result, it is not always possible to detect pedestrians during a Go phase.
- the ACC functions always have the same dynamics in the Go phase whether the camera is operational or not.
- the dynamic is determined by a standard maximum acceleration (for example 1.5 m/s 2 ) not to be exceeded by the speed regulator.
- the threshold of this standard maximum acceleration is predetermined in order to allow the driver to quickly regain control of the ego vehicle, by pressing the brake pedal for example, if a pedestrian was not correctly detected.
- the ACC regulator will not require more than the standard maximum acceleration, but the vehicle may exceed it depending on several factors (slopes, hot engine).
- An object of the present invention is to remedy the aforementioned problem, in particular to have a dynamic and safe behavior during a Go phase of a vehicle speed regulator.
- a first aspect of the invention relates to a method for determining a new maximum acceleration of a speed regulator of an autonomous vehicle, said ego vehicle, said ego vehicle following a target vehicle, said speed regulator modifying a speed of said ego vehicle as a function of a measured speed of said ego vehicle, a predetermined target speed, a standard maximum acceleration, and a relative distance between said ego vehicle and said target vehicle, said cruise control comprising at least two sensors capable of perceiving an environment in front of said ego vehicle and capable of providing position, speed and/or acceleration data of said target vehicle, said method comprising the steps of:
- the new maximum acceleration is equal to a predetermined high acceleration greater than said standard maximum acceleration
- the ego vehicle restarts according to an acceleration adapted, called relaunch acceleration, to the environment in front of the ego vehicle, just as a driver does.
- relaunch acceleration an acceleration adapted, called relaunch acceleration
- the acceleration is greater than when only one of the at least two sensors determines said new advancement of said target vehicle. Thanks to the redundancy, therefore with greater certainty, the ego vehicle moves faster, more dynamically, and more safely than with a cruise control without the invention.
- the acceleration approximates an acceleration made by a driver without said cruise control. Indeed, in the event of uncertainty, a driver accelerates more slowly. This is the case, for example, in town, unlike on a road with restricted access (motorway, etc.).
- the method further comprises a step of determining, for each of the at least two perception sensors, a confidence index of said sensor, and/or an operating state of said sensor, a confidence index representing, for example, a degree of confidence, percentage between 0 and 100%, of said detection of progress of said target vehicle, an operating state representing, for example, the failure or otherwise of said sensor.
- the determination of the ability of the second sensor to detect the progress of said target vehicle again is based on said confidence level and/or on said operating state of said second sensor.
- the detection of the first sensor is not redundant. There is uncertainty in the detection of said first sensor, as a precaution, said relaunch acceleration is equal to a predetermined low acceleration.
- the determination of the ability of said second sensor to detect a possible restart is based on a comparison between data supplied by said first sensor and the data supplied by said second sensor.
- said speed regulator will not be based on the new maximum acceleration.
- said new maximum acceleration is an algebraic function of said predetermined high acceleration and of said confidence index of said first sensor and/or of said second sensor.
- the dynamics of said target vehicle is smoothed according to a risk indirectly determined by the ability of the at least two sensors.
- a sensor capable of perceiving the environment in front of said ego vehicle is one detection means among:
- a RADAR based on the processing of emissions and receptions of electromagnetic waves
- a LIDAR based on the processing of emissions and receptions of light waves
- the step of accelerating said ego vehicle by the cruise control is conditioned by confirmation by a passenger of said ego vehicle, the confirmation being determined following user input on a man-machine interface present in said ego vehicle.
- the ego vehicle advances again only on the order of the passenger who confirms an absence of insecurity.
- a second aspect of the invention relates to a device comprising a memory associated with at least one processor configured to implement the method according to the first aspect of the invention.
- the invention also relates to a vehicle comprising the device.
- the invention also relates to a computer program comprising instructions adapted for the execution of the steps of the method, according to the first aspect of the invention, when said program is executed by at least one processor.
- FIG. 1 schematically illustrates a device, according to a particular embodiment of the present invention.
- FIG. 2 schematically illustrates a method for determining a new maximum acceleration of a cruise control of an autonomous vehicle, according to a particular embodiment of the present invention.
- the invention is described below in its non-limiting application to the case of an autonomous motor vehicle traveling on a road or on a traffic lane.
- Other applications such as a robot in a storage warehouse or a motorcycle on a country road are also possible.
- FIG. 1 represents an example of a device 101 included in the vehicle, in a network (“cloud”) or in a server.
- This device 101 can be used as a centralized device in charge of at least certain steps of the method described below with reference to FIG. 2. In one embodiment, it corresponds to an autonomous driving computer.
- the device 101 is included in the vehicle.
- This device 101 can take the form of a box comprising printed circuits, of any type of computer or even of a mobile telephone (“smartphone”).
- the device 101 comprises a random access memory 102 for storing instructions for the implementation by a processor 103 of at least one step of the method as described above.
- the device also comprises a mass memory 104 for storing data intended to be kept after the implementation of the method.
- the device 101 may also include a digital signal processor (DSP) 105.
- This DSP 105 receives data to shape, demodulate and amplify, in a manner known per se, this data.
- the device 101 also comprises an input interface 106 for receiving the data implemented by the method according to the invention and a output 107 for the transmission of data implemented by the method according to the invention.
- the input interface 106 can receive the following data: position or geographic location of the vehicle, speed and/or acceleration of the vehicle, setpoint or predetermined positions/speeds/accelerations, engine speed, position and/or travel of the clutch, brake and/or accelerator pedal, detection of other vehicles or objects, position or geographic location of other vehicles or objects detected, speed and/or acceleration of other vehicles or objects detected, operating states of sensors , confidence index of data issued or processed by sensors and/or devices similar to device 101 .
- the sensors capable of supplying data are: GPS associated or not with a map, tachometers, accelerometers, RADAR, LIDAR, lasers, ultrasounds, camera, etc. and any sensor capable of perceiving an environment in front of said ego vehicle.
- FIG. 2 schematically illustrates a method for determining a new maximum acceleration of a cruise control of an autonomous vehicle, called an ego vehicle, according to a particular embodiment of the present invention.
- said ego vehicle follows a target vehicle.
- Said cruise control modifies a speed of said ego vehicle according to a measured speed of said ego vehicle, a predetermined set speed, a standard maximum acceleration, and a relative distance between said ego vehicle and said target vehicle.
- Said speed regulator comprising at least two sensors capable of perceiving an environment in front of said ego vehicle and capable of providing position, speed and/or acceleration data of said target vehicle.
- Step 201, Stp is a step of stopping said ego vehicle by said speed regulator following detection of a stoppage of said target vehicle.
- the cruise control has been activated, a set speed has been predetermined (by the driver or, for example, by an ADAS system recognizing a speed limit of a road on which the ego vehicle is traveling), a target vehicle has been detected, and the ego vehicle follows the target vehicle.
- Different life situations are possible to arrive at the stop of the vehicle ego and with the presence of a dangerous situation for a restart, such as for example:
- the relative stopping distance between the ego vehicle and the target vehicle is a function of a predetermined setting. This relative distance is approximately 1.5 meters.
- Step 202, Det1 is a step of detecting the advancement of said target vehicle again, the detection being based on data supplied by a first of the at least two sensors, called the first sensor.
- the further advancement of said target vehicle means that the vehicle, after stopping, said vehicle rolls and moves forward.
- the shutdown time can be brief, less than 1 second, or it can be longer.
- the detection of the advancement again of said target vehicle is obtained by detection of a non-zero speed, by detection of a non-zero acceleration of the target vehicle, by monitoring the variation in distance between the vehicle ego and the target vehicle, by any detection of the detections mentioned above, or by any other means such as information transmitted by radio from the target vehicle, another vehicle, a roadside element, ... .
- said first sensor is capable of providing information on a confidence index of said first sensor, and/or information on an operating state of said first sensor.
- the confidence index and/or the operating state of said sensor are determined by a processor processing data originating from said first sensor as well as similar data originating from other sensors.
- a confidence index represents, for example, a confidence rate, percentage between 0 and 100%, of said detection of progress of said target vehicle. For example, a confidence rate greater than 75%, or any other value, indicates that the data supplied by said first sensor is reliable. For example, a confidence level of less than 25%, or any other value, indicates that the data supplied by said first sensor is reliable.
- the confidence index is calculated according to a temporal or spatial coherence of the data provided by said first sensor.
- Said consistency verifies, for example, the absence of erratic data or inconsistent data.
- Said first sensor can provide inconsistent data under unsuitable operating conditions.
- An operating state represents, for example, the failure or otherwise of said first sensor.
- the operational state indicates that said first sensor is in an operational state or in a non-operational state.
- Step 203, Det2 is a step of determining the ability of a second of the at least two sensors, called second sensor, to detect the progress of said target vehicle again, the determination being based on data provided by said second sensor.
- the detection of the advancement again of said target vehicle is obtained by detection of a non-zero speed, by detection of a non-zero acceleration of the target vehicle, by monitoring the variation in distance between the vehicle ego and the target vehicle, by any detection of the detections mentioned above, or by any other means such as information transmitted by radio from the target vehicle, another vehicle, a roadside element, ... .
- said second sensor is able to provide information on a confidence index of said sensor, and/or information on an operating state of said sensor.
- the confidence index and/or the operating state of said sensor are determined by a processor processing data originating from said second sensor as well as similar data originating from other sensors.
- a confidence index represents, for example, a confidence rate, percentage between 0 and 100%, of said detection of progress of said target vehicle. For example, a confidence rate greater than 75%, or any other value, indicates that the data supplied by said first sensor is reliable. For example, a confidence level of less than 25%, or any other value, indicates that the data supplied by said first sensor is reliable.
- the confidence index is calculated according to a temporal or spatial coherence of the data provided by said second sensor.
- Said consistency verifies, for example, the absence of erratic data or inconsistent data.
- Said second sensor can provide inconsistent data under unsuitable operating conditions.
- image processing is capable of detecting and determining objects in front of said ego vehicle.
- image processing can indicate whether the object is, for example, a pedestrian or a bicycle, and in which direction the object is moving.
- This image processing is also capable of determining the confidence index: for example, the confidence index decreases in the presence of a number of detected objects, if at least one of the detected objects is too close to said ego vehicle (less than 1 meter per example), if at least one of the detected objects is between the ego vehicle and the target vehicle, if at least one of the detected objects is moving between the ego vehicle and the target vehicle, ...
- the determination of the ability of said second sensor to detect a possible restart is based on a comparison between the data provided by said first sensor and the data provided by said second sensor.
- consistency of the data provided by said second sensor can be calculated. This consistency can be a measure of the difference between data provided by said first sensor and data provided by said second sensor.
- data from a third sensor able to perceive an environment in front of said ego vehicle which is used for the calculation of the coherence or the calculation of the confidence index.
- Said third sensor can be of a type other than the type of the first two sensors (for example, the first sensor is of the RADAR type, the second sensor is of the Camera type, and the third sensor is of the ultrasound type)
- An operating state represents, for example, the failure or not of said second sensor.
- the operational state indicates that said second sensor is in an operational state or in a non-operational state.
- the ability of said second sensor is determined according to the confidence index and/or according to the operating state. This determination of suitability may also be based on data received by the input interface 106.
- Step 204, AccH is the step of testing whether said second sensor is capable of detecting the progress of said target vehicle again, and, if so, the step where the new maximum acceleration is equal to an acceleration predetermined high greater than said standard maximum acceleration.
- the standard maximum acceleration will be predetermined at a value less than or equal to the conventional standard maximum acceleration, such as for example 0.8 m/s 2 instead of 1.5 m/s 2 . This allows a restarting acceleration of said ego vehicle closer to that of a driver. He no longer has to compromise between vehicle dynamics and safety.
- Step 205 is the step of accelerating said ego vehicle by the speed regulator, said speed regulator being based on said new maximum acceleration.
- said new maximum acceleration is an algebraic function of said predetermined high acceleration and of said confidence index of said first sensor and/or of said second sensor.
- said acceleration of said ego vehicle in the Go phase will be smoothed with respect to a value of a risk, the value of the risk being determined from the confidence indices.
- the step of accelerating said ego vehicle by the cruise control is conditioned by confirmation by a passenger of said ego vehicle, the confirmation being determined following user input on a man-machine interface present in said ego vehicle.
- the confirmation request is a function of a confidence index of one of the at least two sensors and/or of an outage duration.
- a Go phase is, for example determined, by a duration (for example 30 seconds) and /or a maximum speed of said ego vehicle (for example 30 km/h).
- At least one test based on crossing a threshold has been described above.
- the threshold values are given by way of example, other values are possible.
- Each test can be replaced by different types of tests such as a test based on hysteresis, a parametric test such as the Wald test, a statistical test, etc.
- a relative distance between the vehicle and the target vehicle has been described above. It is well known to convert relative distance into relative time or relative speed. The invention is adaptable by taking into account the relative duration and/or the relative speed.
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2109607A FR3126954B1 (fr) | 2021-09-14 | 2021-09-14 | Procédé et dispositif de détermination d’une nouvelle accélération maximale d’un régulateur de vitesse d’un véhicule autonome. |
| PCT/FR2022/051437 WO2023041854A1 (fr) | 2021-09-14 | 2022-07-20 | Procédé et dispositif de détermination d'une nouvelle accélération maximale d'un régulateur de vitesse d'un véhicule autonome |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4402031A1 true EP4402031A1 (fr) | 2024-07-24 |
Family
ID=78212296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22754122.4A Withdrawn EP4402031A1 (fr) | 2021-09-14 | 2022-07-20 | Procédé et dispositif de détermination d'une nouvelle accélération maximale d'un régulateur de vitesse d'un véhicule autonome |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4402031A1 (fr) |
| FR (1) | FR3126954B1 (fr) |
| WO (1) | WO2023041854A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2109607A6 (en) | 1970-06-04 | 1972-05-26 | Bayer Ag | Perylene dyes - prepd in a grinder-mixer |
| FR3073803A1 (fr) * | 2017-11-23 | 2019-05-24 | Psa Automobiles Sa | Procede d’assistance a la conduite d’un vehicule lors d’une defaillance d’un equipement et systeme associe. |
| DE102018207572B4 (de) * | 2018-05-16 | 2025-12-04 | Ford Global Technologies, Llc | Adaptiver Geschwindigkeitsregler für Kraftfahrzeuge und Verfahren zur adaptiven Geschwindigkeitsregelung |
| JP7194096B2 (ja) * | 2019-09-30 | 2022-12-21 | 本田技研工業株式会社 | 走行制御装置 |
| DE102020110671A1 (de) * | 2020-04-20 | 2021-04-15 | Daimler Ag | Verfahren zur automatisierten Längsregelung |
-
2021
- 2021-09-14 FR FR2109607A patent/FR3126954B1/fr active Active
-
2022
- 2022-07-20 WO PCT/FR2022/051437 patent/WO2023041854A1/fr not_active Ceased
- 2022-07-20 EP EP22754122.4A patent/EP4402031A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR3126954B1 (fr) | 2023-08-04 |
| WO2023041854A1 (fr) | 2023-03-23 |
| FR3126954A1 (fr) | 2023-03-17 |
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