EP3317156A1 - Driver assistance method that suggests a driving position according to a driving situation - Google Patents

Driver assistance method that suggests a driving position according to a driving situation

Info

Publication number
EP3317156A1
EP3317156A1 EP16742346.6A EP16742346A EP3317156A1 EP 3317156 A1 EP3317156 A1 EP 3317156A1 EP 16742346 A EP16742346 A EP 16742346A EP 3317156 A1 EP3317156 A1 EP 3317156A1
Authority
EP
European Patent Office
Prior art keywords
assistance
mode
driving
driver
vehicle
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Withdrawn
Application number
EP16742346.6A
Other languages
German (de)
French (fr)
Inventor
Celine TACCORI DUVERGEY
Vincent LAINE
Stephane Feron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
PSA Automobiles SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3317156A1 publication Critical patent/EP3317156A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • B60W50/0098—Details of control systems ensuring comfort, safety or stability not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0272—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for detecting the position of seat parts
    • 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
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/082—Selecting or switching between different modes of propelling
    • 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
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • 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
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/146—Display means

Definitions

  • the present invention relates to the field of driver assistance systems for motor vehicles.
  • Adaptive Cruise Control better known by the acronym ACC (for "Adaptive Cruise Control” or “Autonomous Cruise Control”), is known, for example.
  • ACC Adaptive Cruise Control
  • Autonomous Cruise Control Such an assistance mode automatically adjusts the speed to maintain a constant safety interval with the preceding vehicle from the information collected on this vehicle (including distance and approach speed) using a or several sensors of the radar, lidar or infrared type.
  • the driving assistance modes mentioned above are each independently activatable via a dedicated command button, located for example on the steering wheel, a control arm or under the steering wheel. dashboard of the vehicle. Recently, new driver assistance systems have appeared in high-end motor vehicles.
  • HAD Highway Automated Driving
  • AHDA Automatic Highway Driving Assist
  • the present invention therefore aims to facilitate the activation of the various modes of assistance to the driving of a motor vehicle.
  • the invention simplifies the activation of assistance modes for driving a vehicle. Instead of selecting an assistance mode, the driver selects a driving position in which he or she eventually escapes certain driving tasks.
  • the invention makes it possible to determine a driving position compatible with an available assistance mode.
  • the step of determining an assistance mode associated with the selected driving position comprises reading a table associating the positions and the assistance modes.
  • the driver assistance system comprises at least one of the following modes of assistance:
  • a first mode of assistance controlling neither the longitudinal displacement of the vehicle nor its lateral displacement, said first mode of assistance being associated with a first driving position in which the driver of the vehicle positions his hands on the wheel, his feet on the pedals and his gaze towards the road;
  • a second assistance mode controlling the longitudinal movement of the vehicle, but not its lateral displacement, said second mode of assistance being associated with a second driving position in which the driver of the vehicle positions his hands on the steering wheel and his eyes towards the road ;
  • a third mode of assistance controlling the longitudinal movement of the vehicle and its lateral movement, under the supervision of the driver, said third mode of assistance being associated with a third driving position in which the driver of the vehicle positions his eyes towards the road ;
  • a fourth assistance mode controlling the longitudinal displacement of the vehicle and its lateral displacement, without the supervision of the driver said fourth assistance mode being associated with a fourth driving position in which the driver is not forced in the position of these hands, these feet and his gaze.
  • the method according to the invention further comprises a preliminary step of starting assistance to the activation of assistance modes by a pressure on a key by the driver of the vehicle.
  • the assistance mode that supports the largest number of driving tasks is selected.
  • the step of determining a position comprises for each available assistance mode the determination of an associated position, each said positions being then indicated to the driver.
  • the invention also relates to a driving assistance system comprising an evaluation module, a control unit, characterized in that said control unit comprises:
  • the invention also relates to a vehicle characterized in that it comprises a driving assistance system according to the preceding claim.
  • FIG. 1 represents a functional diagram of an automated system driving assistance for a vehicle
  • FIG. 2 is a flowchart of the method according to the invention.
  • FIG. 3 shows an example of display of driving positions proposed to the driver.
  • FIG. 4 shows an example of display indicating unavailable pipe positions.
  • the automated driving assistance system 1 comprises a driver monitoring module 10, a driving context evaluation module 20, a driving unit 30, an operating mode module. driving assistance 40, as well as an information and warning module 50.
  • the driver monitoring module 10 comprises for example a sub-module 1 1 for detecting the presence of the driver's hands on the steering wheel 10, and a sub-module 12 for detecting that of its feet on the pedals of the driver. acceleration, braking and clutch.
  • the driver monitoring module 10 may also include a camera pointed towards the driver's face so as to determine his level of attention and / or the direction of his gaze.
  • the driving context evaluation module 20 comprises a camera, for example of CCD type (for "Load Coupling Sensors") oriented towards the front of the vehicle and delivering images making it possible to determine the type of road taken (highway, fast lane or secondary road) based on certain characteristic parameters such as track width, ground marking (color, width and line spacing) and the possible presence of a barrier or a median separation between the two directions of circulation.
  • CCD type for "Load Coupling Sensors”
  • the analysis of the images provided by this camera also makes it possible to establish the level of fluidity of the road traffic.
  • the module 20 also comprises a plurality of sensors measuring certain internal driving parameters such as speed the vehicle and the steering angle of the steering wheel.
  • the data collected by the two driver monitoring modules 10 and driving context assessment 20 are routed in real time to the control unit 30 to which these two modules are connected.
  • the control unit 30, preferably constituted by the intelligent service housing (BSI) of the vehicle, comprises a computer 31 and a storage module 32 comprising non-volatile memory type EEPROM or FLASH and RAM .
  • the non-volatile memory stores a process for assisting activation of the motor vehicle driving assistance modes whose flowchart is shown in FIG. 2 and which is implemented cyclically according to a predetermined period of time inclusive of preferably between 100 ms and 1000 ms.
  • non-volatile memory can be updated by means of communication or reading means of a data medium.
  • the control unit 30 is connected to the actuation module 40 to which it is able to transmit the command to activate or deactivate one of the modes of assistance to driving.
  • This actuation module 40 comprises a plurality of actuators able to control certain vehicle components such as steering, acceleration, braking and gearbox to ensure the implementation of the various modes of assistance to driving. with which the vehicle is equipped, namely in this case:
  • a second mode of assistance for adaptive speed control ensuring only the control of the longitudinal movement of the vehicle and wherein the control of the lateral movement remains the responsibility of the driver via the steering wheel;
  • a third mode of assistance for example for driving on motorway, ensuring both lateral and longitudinal control of the vehicle in situations of fluid traffic (speed close to the statutory limit) on separated highways and in which the driver is required to keep his eyes fixed on the road as the guidance can only be maintained for a short period of 1 to 3 seconds in case of loss of information (disengagement with rapid transition).
  • a fourth mode of assistance for example for driving in a traffic jam, ensuring both control of the lateral and longitudinal displacement of the vehicle in situations of heavy traffic or traffic jams (speed below a predetermined threshold value, for example between 50 and 70 km / h) and on roads with separate carriageways and in which driver is not required to keep his eyes fixed on the road and can go about other occupations because the guidance can be maintained over a period of a few seconds (for example between 5 and 15 s) in case of loss of information (disengagement with normal transition).
  • a predetermined threshold value for example between 50 and 70 km / h
  • the information and warning module 50 comprises a first information screen 51 integrated in the central console of the dashboard of the vehicle (the latter being preferably constituted by the display screen of the information device. entertainment) and able to broadcast visual messages indicating the driving position or positions proposed to the driver according to the available modes of assistance. For better legibility, this information is preferably displayed in the form of luminous pictograms such as those shown in FIG.
  • the module 50 also preferably includes a second warning screen 52 integrated in the instrument cluster of the vehicle and intended to display visual messages.
  • This module 50 is also provided with a siren 53 adapted to emit an acoustic warning signal when the driver must take control of the steering wheel.
  • the control unit 30 receives a command that starts the process of assisting the activation of the driver assistance modes.
  • This command is for example consecutive to a pressure of a dedicated key by the driver of the vehicle.
  • the method also comprises a step 210 of determining the assistance modes available from a driving context.
  • the control unit 30 determines, using the data transmitted by the driving context evaluation module 20, the driving assistance mode or modes that can be activated in the current configuration. .
  • the control unit 30 will deduce that the second mode (adaptive speed control ) and the third mode (assistance with driving on the motorway) can be activated.
  • the driving unit will determine that the second mode and the fourth mode (driving assistance in traffic jam). can be activated.
  • the method also comprises a determination step 220 of a driving position associated with the determined assistance mode.
  • the determination step 220 of a driving position associated with the determined assistance mode comprises the consultation of a table associating each driving mode with a driving position.
  • the driver assistance system 1 comprises:
  • a first mode of assistance controlling neither the longitudinal displacement of the vehicle nor its lateral displacement, said first mode of assistance being associated with a first driving position in which the driver of the vehicle positions his hands on the wheel, his feet on the pedals and his gaze towards the road;
  • a second assistance mode controlling the longitudinal movement of the vehicle, but not its lateral displacement, said second mode of assistance being associated with a second driving position in which the driver of the vehicle positions his hands on the steering wheel and his eyes towards the road ;
  • a third mode of assistance controlling the longitudinal movement of the vehicle and its lateral movement, under the supervision of the driver, said third mode of assistance being associated with a third driving position in which the driver of the vehicle positions his eyes towards the road ;
  • a fourth assistance mode controlling the longitudinal displacement of the vehicle and its lateral displacement, without the supervision of the driver said fourth assistance mode being associated with a fourth driving position in which the driver is not forced into the position of those hands, those feet, and his look.
  • the table associating the position of the driver and the assistance mode is stored in a non-volatile memory of the control unit 30.
  • control unit 30 determines that the third driving position is associated with the third assistance mode.
  • the method also comprises a step 230 for transmitting a signal to the driver of the vehicle, the signal indicating the determined position.
  • this step comprises the display of a pictogram representing the driving position. An example of pictograms is shown in Figure 4.
  • the control unit 30 means to the module 50 to display an informative visual message on the screen 51 indicating the available driving position.
  • this screen 51 will display the pictogram 403 shown in FIG. 4 which indicates to the driver that he can remove the hands from the steering wheel and the pedals while keeping his eyes fixed. on the road so as to be able to quickly regain control of the orders if necessary (disengage with short transition).
  • the method also comprises a step 240 for receiving an activation request.
  • the driver can accept or not the position proposed by the assistance device.
  • the acceptance is made via a human-machine interface, by means of an activation key, a voice command or gesture recognized and interpreted by a gesture recognition system.
  • control unit 30 controls the activation 250 of the determined assistance mode.
  • Figure 3 shows examples of driving position displays.
  • Figure 3 illustrates:
  • a first pictogram 401 indicating that the driver of the vehicle must position his hands on the wheel, his feet on the pedals and his eyes towards the road;
  • a fourth pictogram shows a position in which the driver is not forced in the position of these hands, these feet and his gaze.
  • the assistance mode determining step 210 if several assistance modes are available, then the assistance mode that supports the largest number of service tasks is driving is selected.
  • the position determination step 220 comprises for each available assistance mode the determination of an associated position, each of said positions then being indicated 230 to the driver.
  • Figure 4 shows an example of a display indicating that the first 401 and the second 402 position are available while the third 403 and the fourth 404 position are unavailable.
  • the unavailability of a position is indicated by a particular display, for example, a cross blocking the position.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Traffic Control Systems (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

The invention relates to a method for assisting the activation of modes of assistance for helping a driver with the driving of a vehicle, said method being implemented by a unit for controlling a driver assistance system, and comprising a step of: determining (210) at least one mode of assistance available on the basis of a certain driving situation, said method being characterised in that it also comprises steps of: determining (220) a driving position associated with the determined available mode of assistance; transmitting (230) a signal to the driver of the vehicle, indicating the determined driving position; receiving (240) an activation request; and in response to said request, activating (250) the mode of assistance associated with the selected position.

Description

PROCEDE D'ASSISTANCE A UN CONDUCTEUR PROPOSANT UNE POSITION DE CONDUITE EN FONCTION D'UN CONTEXTE DE CONDUITE.  METHOD FOR ASSISTING A DRIVER PROVIDING A DRIVING POSITION ACCORDING TO A CONTEXT OF DRIVING.
La présente invention concerne le domaine des systèmes d'assistance à la conduite pour véhicules automobiles. The present invention relates to the field of driver assistance systems for motor vehicles.
Les systèmes d'assistance à la conduite sont désormais largement répandus dans les véhicules automobiles récents et connaissent un développement rapide. Driver assistance systems are now widely used in recent motor vehicles and are growing rapidly.
On connaît par exemple les régulateurs de vitesse adaptatifs, mieux connus sous l'acronyme anglais ACC (pour « Adaptive Cruise Control » ou « Autonomous Cruise Control »). Un tel mode d'assistance ajuste de manière automatique la vitesse afin de maintenir un intervalle de sécurité constant avec le véhicule précédant à partir des informations recueillis sur ce véhicule (notamment la distance et la vitesse d'approche) à l'aide d'un ou plusieurs capteurs de type radar, lidar ou infrarouge. Adaptive Cruise Control, better known by the acronym ACC (for "Adaptive Cruise Control" or "Autonomous Cruise Control"), is known, for example. Such an assistance mode automatically adjusts the speed to maintain a constant safety interval with the preceding vehicle from the information collected on this vehicle (including distance and approach speed) using a or several sensors of the radar, lidar or infrared type.
On connaît également, notamment de la demande de brevet américaine US 2013/0096767, des systèmes dynamiques anti-franchissement involontaire de ligne. Ces derniers, désignés généralement sous les acronymes ALKA (pour « Active Lane Keep Assist »), LKAS (pour « Lane Keep Assistance System), ALA (pour « Active Lane Assist) ou encore ALC (pour « Active Lane Control ») détectent les lignes de marquages au sol à l'aide de capteurs et/ou de caméras optiques, et interviennent dynamiquement sur le véhicule lorsque ce dernier s'écarte de sa voie de circulation. Dans un tel cas de figure, le système d'assistance à la conduite va alors corriger automatiquement la direction du véhicule et/ou activer le freinage. Also known, in particular from US patent application US 2013/0096767, dynamic systems anti-crossing involuntary line. These are commonly referred to as ALKA (for Active Lane Keep Assist), LKAS (for Lane Keep Assistance System), ALA (for Active Lane Assist) or ALC (for Active Lane Control). lines of markings on the ground using sensors and / or optical cameras, and intervene dynamically on the vehicle when the latter deviates from its lane. In such a case, the driver assistance system will then automatically correct the direction of the vehicle and / or activate the braking.
Les modes d'assistance à la conduite évoqués ci-avant sont activables chacun de manière indépendante par l'intermédiaire d'un bouton de commande dédié, situé par exemple sur le volant, sur un bras de commande sous-volant ou bien encore sur la planche de bord du véhicule. Récemment, de nouveaux systèmes d'assistance à la conduite ont fait leur apparition dans les véhicules automobiles haut de gamme. The driving assistance modes mentioned above are each independently activatable via a dedicated command button, located for example on the steering wheel, a control arm or under the steering wheel. dashboard of the vehicle. Recently, new driver assistance systems have appeared in high-end motor vehicles.
Tel est notamment le cas des assistants de conduite en embouteillage (plus connus sous l'acronyme anglais TJC pour « Traffic Jam Chauffeur ») destinés à soulager le conducteur dans des situations de trafic dense ou de bouchon (vitesse inférieure à 50/70 km/h) sur des routes à chaussées séparées (autoroutes et voies rapides). Ces derniers sont capables de réguler automatiquement la vitesse jusqu'à l'arrêt afin de maintenir une distance voulue avec le véhicule précédant tout en assurant le contrôle de la direction, de sorte que le conducteur peut lâcher le volant et les pédales pour vaquer à d'autres activités. This is particularly the case of traffic jam assistants (better known by the acronym TJC for "Traffic Jam Chauffeur") intended to relieve the driver in situations of heavy traffic or traffic jams (speed below 50/70 km / (h) on divided highways (motorways and expressways). These are able to automatically regulate the speed to a stop to maintain a desired distance with the previous vehicle while ensuring the control of the direction, so that the driver can release the steering wheel and the pedals to go to d 'other activites.
On peut également citer les systèmes d'assistance à la conduite sur autoroute communément désignés sous les acronymes HAD (pour « Highway Automated Driving ») ou AHDA (pour « Automatic Highway Driving Assist ») et aptes à délester entièrement le conducteur dans des situations de trafic fluide (vitesse proche de la limite réglementaire) sur des routes à chaussées séparées. Also mentioned are the assistance systems for driving on motorways commonly known by the acronyms HAD (for "Highway Automated Driving") or AHDA (for "Automatic Highway Driving Assist") and able to completely unload the driver in situations of fluid traffic (speed close to the regulatory limit) on separated highways.
A l'usage, la multiplication de ces modes d'assistance à la conduite activables séparément a tendance à « perdre » les utilisateurs qui renoncent souvent à les utiliser faute de savoir sélectionner le mode adéquat en fonction des circonstances.  In use, the multiplication of these driver assistance modes separately activatable tends to "lose" users who often give up using them for lack of knowing how to select the appropriate mode depending on the circumstances.
La présente invention vise donc à faciliter l'activation des différents modes d'assistance à la conduite d'un véhicule automobile.  The present invention therefore aims to facilitate the activation of the various modes of assistance to the driving of a motor vehicle.
Elle propose plus précisément à cet effet un procédé d'aide à l'activation de modes d'assistance d'un conducteur à la conduite d'un véhicule, ledit procédé étant mis en œuvre par une unité de pilotage d'un système d'assistance à la conduite, et comportant une étape de : It proposes more specifically for this purpose a method of assisting the activation of modes of assistance of a driver to the driving of a vehicle, said method being implemented by a control unit of a control system. driving assistance, and comprising a step of:
- détermination d'au moins un mode d'assistance disponible à partir d'un contexte de conduite,  determining at least one assistance mode available from a driving context,
ledit procédé étant caractérisé en ce qu'il comporte en outre des étapes de :said method being characterized in that it further comprises steps of:
- détermination d'une position de conduite associée au mode d'assistance disponible déterminé, - émission d'un signal, à destination du conducteur du véhicule, indiquant la position de conduite déterminée, determination of a driving position associated with the determined available assistance mode, - transmission of a signal to the driver of the vehicle, indicating the determined driving position,
- réception d'une demande d'activation,  - receiving an activation request,
- en réponse à ladite demande, activation du mode d'assistance déterminé.  in response to said request, activating the determined assistance mode.
L'invention permet de simplifier l'activation des modes d'assistance à la conduite d'un véhicule. Au lieu de sélectionner un mode d'assistance, le conducteur sélectionne une position de conduite dans laquelle il se soustrait éventuellement à certaines tâches de conduite. L'invention permet de déterminer une position de conduite compatible avec un mode d'assistance disponible.  The invention simplifies the activation of assistance modes for driving a vehicle. Instead of selecting an assistance mode, the driver selects a driving position in which he or she eventually escapes certain driving tasks. The invention makes it possible to determine a driving position compatible with an available assistance mode.
Avantageusement, l'étape de détermination d'un mode d'assistance associé à la position de conduite sélectionnée comporte la lecture d'une table associant les positions et les modes d'assistance.  Advantageously, the step of determining an assistance mode associated with the selected driving position comprises reading a table associating the positions and the assistance modes.
Avantageusement, le système d'assistance à la conduite comporte au moins un des modes d'assistance suivants :  Advantageously, the driver assistance system comprises at least one of the following modes of assistance:
- Un premier mode d'assistance ne contrôlant ni le déplacement longitudinal du véhicule, ni son déplacement latéral, ledit premier mode d'assistance étant associé à une première position de conduite dans laquelle le conducteur du véhicule positionne ses mains sur le volant, ses pieds sur les pédales et son regard vers la route ;  - A first mode of assistance controlling neither the longitudinal displacement of the vehicle nor its lateral displacement, said first mode of assistance being associated with a first driving position in which the driver of the vehicle positions his hands on the wheel, his feet on the pedals and his gaze towards the road;
- Un deuxième mode d'assistance contrôlant le déplacement longitudinal du véhicule, mais pas son déplacement latéral, ledit deuxième mode d'assistance étant associé à une deuxième position de conduite dans laquelle le conducteur du véhicule positionne ses mains sur le volant et son regard vers la route ;  - A second assistance mode controlling the longitudinal movement of the vehicle, but not its lateral displacement, said second mode of assistance being associated with a second driving position in which the driver of the vehicle positions his hands on the steering wheel and his eyes towards the road ;
- Un troisième mode d'assistance contrôlant le déplacement longitudinal du véhicule et son déplacement latéral, sous la supervision du conducteur, ledit troisième mode d'assistance étant associé à une troisième position de conduite dans laquelle le conducteur du véhicule positionne son regard vers la route ;  - A third mode of assistance controlling the longitudinal movement of the vehicle and its lateral movement, under the supervision of the driver, said third mode of assistance being associated with a third driving position in which the driver of the vehicle positions his eyes towards the road ;
- Un quatrième mode d'assistance contrôlant le déplacement longitudinal du véhicule et son déplacement latéral, sans la supervision du conducteur ledit quatrième mode d'assistance étant associé à une quatrième position de conduite dans laquelle le conducteur n'est pas contraint dans la position de ces mains, ces pieds et son regard. - A fourth assistance mode controlling the longitudinal displacement of the vehicle and its lateral displacement, without the supervision of the driver said fourth assistance mode being associated with a fourth driving position in which the driver is not forced in the position of these hands, these feet and his gaze.
Avantageusement, le procédé selon l'invention comporte en outre une étape préalable mise en route de l'aide à l'activation de modes d'assistance par une pression sur une touche par le conducteur du véhicule.  Advantageously, the method according to the invention further comprises a preliminary step of starting assistance to the activation of assistance modes by a pressure on a key by the driver of the vehicle.
Avantageusement, lors de l'étape de détermination du mode d'assistance, si plusieurs modes d'assistance sont disponibles alors le mode d'assistance prenant en charge le plus grand nombre de tâches de conduite est sélectionné.  Advantageously, during the step of determining the assistance mode, if several assistance modes are available then the assistance mode that supports the largest number of driving tasks is selected.
Avantageusement, lors de l'étape de détermination du mode d'assistance, si plusieurs modes d'assistance sont disponibles alors l'étape de détermination d'une position comporte pour chaque mode d'assistance disponible la détermination d'une position associée, chacune desdites positions étant ensuite indiquées au conducteur.  Advantageously, during the step of determining the assistance mode, if several assistance modes are available then the step of determining a position comprises for each available assistance mode the determination of an associated position, each said positions being then indicated to the driver.
L'invention concerne aussi un système d'assistance à la conduite comportant un module d'évaluation, une unité de pilotage, caractérisé en ce que ladite unité de pilotage comporte :  The invention also relates to a driving assistance system comprising an evaluation module, a control unit, characterized in that said control unit comprises:
des moyens de détermination des modes d'assistance disponibles à partir d'un contexte de conduite,  means for determining the assistance modes available from a driving context,
des moyens de détermination d'une position de conduite associée au mode d'assistance déterminée,  means for determining a driving position associated with the determined assistance mode,
des moyens de réception d'une commande de sélection d'une position de conduite du conducteur du véhicule,  means for receiving a command for selecting a driving position of the driver of the vehicle,
des moyens d'activation du mode d'assistance associé à la position sélectionnée.  means for activating the assistance mode associated with the selected position.
L'invention concerne aussi véhicule caractérisé en ce qu'il comporte un système d'assistance à la conduite selon la revendication précédente.  The invention also relates to a vehicle characterized in that it comprises a driving assistance system according to the preceding claim.
D'autres caractéristiques et avantages de l'invention apparaîtront à l'examen de la description détaillée ci-après, et des dessins annexés, sur lesquels :  Other features and advantages of the invention will appear on examining the detailed description below, and the attached drawings, in which:
- la figure 1 représente un diagramme fonctionnel d'un système automatisé d'assistance à la conduite pour véhicule ; FIG. 1 represents a functional diagram of an automated system driving assistance for a vehicle;
- la figure 2 est un organigramme du procédé selon l'invention ;  FIG. 2 is a flowchart of the method according to the invention;
- la figure 3 représente un exemple d'affichage de positions de conduite proposées au conducteur.  - Figure 3 shows an example of display of driving positions proposed to the driver.
- La figure 4 montre un exemple d'affichage indiquant des positions de conduites indisponibles.  - Figure 4 shows an example of display indicating unavailable pipe positions.
Les dessins annexés pourront non seulement servir à compléter l'invention, mais aussi contribuer à sa définition, le cas échéant.  The attached drawings may not only serve to complete the invention, but also contribute to its definition, if any.
En référence à la figure 1 , le système d'assistance automatisée à la conduite 1 comporte un module de surveillance du conducteur 10, un module d'évaluation du contexte de conduite 20, une unité de pilotage 30, un module d'actionnement des modes d'assistance à la conduite 40, ainsi qu'un module d'information et d'avertissement 50.  With reference to FIG. 1, the automated driving assistance system 1 comprises a driver monitoring module 10, a driving context evaluation module 20, a driving unit 30, an operating mode module. driving assistance 40, as well as an information and warning module 50.
Le module de surveillance du conducteur 10 comprend par exemple un sous-module 1 1 de détection de la présence des mains du conducteur sur le volant 10, ainsi qu'un sous-module 12 de détection de celle de ses pieds sur les pédales d'accélération, de freinage et d'embrayage. Le module de surveillance du conducteur 10 peut également comporter une caméra pointée vers le visage du conducteur de façon à déterminer son niveau d'attention et/ou la direction de son regard.  The driver monitoring module 10 comprises for example a sub-module 1 1 for detecting the presence of the driver's hands on the steering wheel 10, and a sub-module 12 for detecting that of its feet on the pedals of the driver. acceleration, braking and clutch. The driver monitoring module 10 may also include a camera pointed towards the driver's face so as to determine his level of attention and / or the direction of his gaze.
Le module d'évaluation du contexte de conduite 20 comprend une caméra par exemple de type CCD (pour « Capteurs à Couplage de Charges ») orientée vers l'avant du véhicule et délivrant des images permettant de déterminer le type de route empruntée (autoroute, voie rapide ou bien route secondaire) à partir de certains paramètres caractéristiques tels que la largeur de la voie, le marquage au sol (couleur, largeur et espacement des lignes) et la présence éventuelle d'une barrière ou d'un terre-plein central de séparation entre les deux sens de circulation. L'analyse des images fournies par cette caméra permet en outre d'établir le niveau de fluidité du trafic routier.  The driving context evaluation module 20 comprises a camera, for example of CCD type (for "Load Coupling Sensors") oriented towards the front of the vehicle and delivering images making it possible to determine the type of road taken (highway, fast lane or secondary road) based on certain characteristic parameters such as track width, ground marking (color, width and line spacing) and the possible presence of a barrier or a median separation between the two directions of circulation. The analysis of the images provided by this camera also makes it possible to establish the level of fluidity of the road traffic.
Le module 20 comporte également une pluralité de capteurs mesurant certains paramètres internes de conduite tels que la vitesse instantanée du véhicule et l'angle de braquage du volant. The module 20 also comprises a plurality of sensors measuring certain internal driving parameters such as speed the vehicle and the steering angle of the steering wheel.
Les données recueillies par les deux modules de surveillance du conducteur 10 et d'évaluation du contexte de conduite 20 sont acheminés en temps réel vers l'unité de pilotage 30 à laquelle ces deux modules sont reliés. The data collected by the two driver monitoring modules 10 and driving context assessment 20 are routed in real time to the control unit 30 to which these two modules are connected.
L'unité de pilotage 30, constituée de préférence par le boîtier de servitude intelligent (BSI) du véhicule, comporte un calculateur 31 ainsi qu'un module de stockage 32 comprenant de la mémoire non volatile de type EEPROM ou FLASH et de la mémoire vive. The control unit 30, preferably constituted by the intelligent service housing (BSI) of the vehicle, comprises a computer 31 and a storage module 32 comprising non-volatile memory type EEPROM or FLASH and RAM .
La mémoire non volatile stocke un processus d'aide à l'activation des modes d'assistance à la conduite du véhicule automobile dont l'organigramme est représenté sur la figure 2 et qui est mis en œuvre de manière cyclique selon une période prédéterminée comprise de préférence entre 100 ms et 1000 ms. The non-volatile memory stores a process for assisting activation of the motor vehicle driving assistance modes whose flowchart is shown in FIG. 2 and which is implemented cyclically according to a predetermined period of time inclusive of preferably between 100 ms and 1000 ms.
L'ensemble des informations contenues dans cette mémoire non volatile peut être mis à jour par des moyens de communication ou des moyens de lecture d'un support de données. All the information contained in this non-volatile memory can be updated by means of communication or reading means of a data medium.
L'unité de pilotage 30 est reliée au module d'actionnement 40 auquel elle est apte à transmettre l'ordre d'activer ou de désactiver l'un des modes d'assistance à la conduite. The control unit 30 is connected to the actuation module 40 to which it is able to transmit the command to activate or deactivate one of the modes of assistance to driving.
Ce module d'actionnement 40 comporte une pluralité d'actionneurs aptes à contrôler certains organes du véhicule tels que la direction, l'accélération, le freinage et la boîte de vitesse pour assurer la mise en œuvre des différents modes d'assistance à la conduite dont est doté le véhicule, à savoir en l'espèce : This actuation module 40 comprises a plurality of actuators able to control certain vehicle components such as steering, acceleration, braking and gearbox to ensure the implementation of the various modes of assistance to driving. with which the vehicle is equipped, namely in this case:
- un premier mode d'assistance dans lequel le véhicule ne contrôle ni le déplacement longitudinal, ni le déplacement latéral du véhicule,  a first mode of assistance in which the vehicle does not control the longitudinal displacement or the lateral displacement of the vehicle,
- un deuxième mode d'assistance permettant une régulation de vitesse adaptative, assurant uniquement le contrôle du déplacement longitudinal du véhicule et dans lequel le contrôle du déplacement latéral reste à la charge du conducteur via le volant ;  - A second mode of assistance for adaptive speed control, ensuring only the control of the longitudinal movement of the vehicle and wherein the control of the lateral movement remains the responsibility of the driver via the steering wheel;
- un troisième mode d'assistance, par exemple pour la conduite sur autoroute, assurant à la fois le contrôle latéral et longitudinal du véhicule dans des situations de trafic fluide (vitesse proche de la limite réglementaire) sur des routes à chaussées séparées et dans lequel le conducteur est tenu de garder les yeux fixés sur la route car le guidage ne peut être maintenu que sur une courte période de 1 à 3 secondes en cas de perte d'information (désengagement avec transition rapide). - a third mode of assistance, for example for driving on motorway, ensuring both lateral and longitudinal control of the vehicle in situations of fluid traffic (speed close to the statutory limit) on separated highways and in which the driver is required to keep his eyes fixed on the road as the guidance can only be maintained for a short period of 1 to 3 seconds in case of loss of information (disengagement with rapid transition).
- Un quatrième mode d'assistance, par exemple pour la conduite en embouteillage, assurant à la fois le contrôle du déplacement latéral et longitudinal du véhicule dans des situations de trafic dense ou de bouchon (vitesse inférieure à une valeur seuil prédéterminée comprise par exemple entre 50 et 70 km/h) et sur des routes à chaussées séparées et dans lequel conducteur n'est pas tenu de garder les yeux fixés sur la route et peut vaquer à d'autres occupations car le guidage peut être maintenu sur une période de quelques secondes (comprise par exemple entre 5 et 15 s) en cas de perte d'information (désengagement avec transition normale). A fourth mode of assistance, for example for driving in a traffic jam, ensuring both control of the lateral and longitudinal displacement of the vehicle in situations of heavy traffic or traffic jams (speed below a predetermined threshold value, for example between 50 and 70 km / h) and on roads with separate carriageways and in which driver is not required to keep his eyes fixed on the road and can go about other occupations because the guidance can be maintained over a period of a few seconds (for example between 5 and 15 s) in case of loss of information (disengagement with normal transition).
Le module d'information et d'avertissement 50 comporte un premier écran d'information 51 intégré à la console centrale de la planche de bord du véhicule (ce dernier étant constitué de préférence par l'écran d'affichage du dispositif d'info-divertissement) et apte à diffuser des messages visuels indiquant la ou les positions de conduite proposées au conducteur en fonction des modes d'assistance disponibles. Pour une meilleure lisibilité, ces informations sont de préférence affichées sous la forme de pictogrammes lumineux tels que ceux représentés sur la figure 3. The information and warning module 50 comprises a first information screen 51 integrated in the central console of the dashboard of the vehicle (the latter being preferably constituted by the display screen of the information device. entertainment) and able to broadcast visual messages indicating the driving position or positions proposed to the driver according to the available modes of assistance. For better legibility, this information is preferably displayed in the form of luminous pictograms such as those shown in FIG.
Le module 50 comprend également de préférence un second écran d'avertissement 52 intégré au combiné d'instruments du véhicule et destiné à afficher des messages visuels. The module 50 also preferably includes a second warning screen 52 integrated in the instrument cluster of the vehicle and intended to display visual messages.
Ce module 50 est également doté d'une sirène 53 apte à émettre un signal acoustique d'alerte lorsque le conducteur doit reprendre en main le volant. This module 50 is also provided with a siren 53 adapted to emit an acoustic warning signal when the driver must take control of the steering wheel.
On va maintenant décrire en détails et à l'appui de l'organigramme de la figure 2, les différentes étapes de la première variante du procédé selon l'invention. Au cours d'une première étape 200 facultative, l'unité de pilotage 30 reçoit une commande mise en route du processus d'aide à l'activation des modes d'assistance à la conduite. Cette commande est par exemple consécutive à une pression d'une touche dédiée par le conducteur du véhicule. The various steps of the first variant of the method according to the invention will now be described in detail and in support of the flowchart of FIG. During an optional first step 200, the control unit 30 receives a command that starts the process of assisting the activation of the driver assistance modes. This command is for example consecutive to a pressure of a dedicated key by the driver of the vehicle.
En l'absence d'une telle étape, on suppose que le processus d'aide à l'activation des modes d'assistance à la conduite est actif dès mise en route du véhicule.  In the absence of such a step, it is assumed that the process of assisting the activation of the modes of assistance to driving is active as soon as the vehicle is started.
Le procédé comporte aussi une étape de détermination 210 des modes d'assistance disponibles à partir d'un contexte de conduite. Au cours de cette étape, l'unité de pilotage 30 détermine, à l'aide des données transmises par le module d'évaluation du contexte de conduite 20, le ou les modes d'assistance à la conduite pouvant être activés dans la configuration actuelle. The method also comprises a step 210 of determining the assistance modes available from a driving context. During this step, the control unit 30 determines, using the data transmitted by the driving context evaluation module 20, the driving assistance mode or modes that can be activated in the current configuration. .
Par exemple, si le module 20 détecte que le véhicule circule à une vitesse de 1 10 km/h sur une voie rapide sur laquelle le trafic est fluide, l'unité de pilotage 30 va en déduire que le deuxième mode (régulation de vitesse adaptative) et le troisième mode (assistance à la conduite sur autoroute) peuvent être activé. For example, if the module 20 detects that the vehicle is traveling at a speed of 1 10 km / h on a fast track on which the traffic is fluid, the control unit 30 will deduce that the second mode (adaptive speed control ) and the third mode (assistance with driving on the motorway) can be activated.
Dans un autre cas de figure où le véhicule roule à vitesse réduite (40 km/h) sur une portion d'autoroute embouteillée, l'unité de pilotage va déterminer que le deuxième mode et le quatrième mode (assistance à la conduite en embouteillage) sont activables.  In another case where the vehicle is traveling at a reduced speed (40 km / h) on a portion of the motorway that is bottled, the driving unit will determine that the second mode and the fourth mode (driving assistance in traffic jam). can be activated.
Le procédé comporte aussi une étape de détermination 220 d'une position de conduite associée au mode d'assistance déterminée. L'étape de détermination 220 d'une position de conduite associée au mode d'assistance déterminée comporte la consultation d'une table associant à chaque mode d'assistance une position de conduite. The method also comprises a determination step 220 of a driving position associated with the determined assistance mode. The determination step 220 of a driving position associated with the determined assistance mode comprises the consultation of a table associating each driving mode with a driving position.
Pour un mode d'assistance donné, la position de conduite associée permet au conducteur d'assurer les tâches de conduite qui ne sont pas assurées par le mode d'assistance. Dans l'exemple, le système 1 d'assistance à la conduite comporte :For a given assistance mode, the associated driving position allows the driver to perform driving tasks that are not provided by the assistance mode. In the example, the driver assistance system 1 comprises:
- Un premier mode d'assistance ne contrôlant ni le déplacement longitudinal du véhicule, ni son déplacement latéral, ledit premier mode d'assistance étant associé à une première position de conduite dans laquelle le conducteur du véhicule positionne ses mains sur le volant, ses pieds sur les pédales et son regard vers la route ; - A first mode of assistance controlling neither the longitudinal displacement of the vehicle nor its lateral displacement, said first mode of assistance being associated with a first driving position in which the driver of the vehicle positions his hands on the wheel, his feet on the pedals and his gaze towards the road;
- Un deuxième mode d'assistance contrôlant le déplacement longitudinal du véhicule, mais pas son déplacement latéral, ledit deuxième mode d'assistance étant associé à une deuxième position de conduite dans laquelle le conducteur du véhicule positionne ses mains sur le volant et son regard vers la route ;  - A second assistance mode controlling the longitudinal movement of the vehicle, but not its lateral displacement, said second mode of assistance being associated with a second driving position in which the driver of the vehicle positions his hands on the steering wheel and his eyes towards the road ;
- Un troisième mode d'assistance contrôlant le déplacement longitudinal du véhicule et son déplacement latéral, sous la supervision du conducteur, ledit troisième mode d'assistance étant associé à une troisième position de conduite dans laquelle le conducteur du véhicule positionne son regard vers la route ;  - A third mode of assistance controlling the longitudinal movement of the vehicle and its lateral movement, under the supervision of the driver, said third mode of assistance being associated with a third driving position in which the driver of the vehicle positions his eyes towards the road ;
- Un quatrième mode d'assistance contrôlant le déplacement longitudinal du véhicule et son déplacement latéral, sans la supervision du conducteur ledit quatrième mode d'assistance étant associé à une quatrième position de conduite dans laquelle le conducteur n'est pas contraint dans la position de ces mains, ces pieds et son regard.  A fourth assistance mode controlling the longitudinal displacement of the vehicle and its lateral displacement, without the supervision of the driver said fourth assistance mode being associated with a fourth driving position in which the driver is not forced into the position of those hands, those feet, and his look.
La table associant la position du conducteur et le mode d'assistance est stockée dans une mémoire non volatile de l'unité de pilotage 30. The table associating the position of the driver and the assistance mode is stored in a non-volatile memory of the control unit 30.
On suppose par exemple que le troisième mode d'assistance est disponible. L'unité de pilotage 30 détermine que la troisième position de conduite est associée au troisième mode d'assistance. For example, it is assumed that the third mode of assistance is available. The control unit 30 determines that the third driving position is associated with the third assistance mode.
Le procédé comporte aussi une étape d'émission 230 d'un signal, à destination du conducteur du véhicule, le signal indiquant la position déterminée. Selon un mode de réalisation avantageux, cette étape comprend l'affichage d'un pictogramme représentant la position de conduite. Un exemple de pictogrammes est représenté figure 4. L'unité de pilotage 30 signifie au module 50 d'afficher un message visuel informatif sur l'écran 51 indiquant la position de conduite disponible. The method also comprises a step 230 for transmitting a signal to the driver of the vehicle, the signal indicating the determined position. According to an advantageous embodiment, this step comprises the display of a pictogram representing the driving position. An example of pictograms is shown in Figure 4. The control unit 30 means to the module 50 to display an informative visual message on the screen 51 indicating the available driving position.
Par exemple et dans le cas d'une activation du troisième mode, cet écran 51 affichera le pictogramme 403 représenté sur la figure 4 qui indique au conducteur qu'il peut retirer les mains du volant et les pieds des pédales tout en gardant les yeux fixés sur la route de sorte à être capable de reprendre rapidement le contrôle des commandes si nécessaire (désengagement avec transition courte). For example, and in the case of activation of the third mode, this screen 51 will display the pictogram 403 shown in FIG. 4 which indicates to the driver that he can remove the hands from the steering wheel and the pedals while keeping his eyes fixed. on the road so as to be able to quickly regain control of the orders if necessary (disengage with short transition).
Le procédé comporte aussi une étape de réception 240 d'une demande d'activation. Le conducteur peut accepter ou non la position proposée par le dispositif d'assistance. L'acception se fait par l'intermédiaire d'une interface homme-machine, par le biais d'une touche d'activation, d'une commande vocale ou d'un geste reconnu et interprété par un système de reconnaissance de gestes. The method also comprises a step 240 for receiving an activation request. The driver can accept or not the position proposed by the assistance device. The acceptance is made via a human-machine interface, by means of an activation key, a voice command or gesture recognized and interpreted by a gesture recognition system.
En réponse à l'acceptation du conducteur, l'unité de pilotage 30 commande l'activation 250 du mode d'assistance déterminé. In response to the acceptance of the driver, the control unit 30 controls the activation 250 of the determined assistance mode.
La figure 3 montre des exemples d'affichages de positions de conduite. En particulier, la figure 3 illustre :  Figure 3 shows examples of driving position displays. In particular, Figure 3 illustrates:
- Un premier pictogramme 401 indiquant que le conducteur du véhicule doit positionner ses mains sur le volant, ses pieds sur les pédales et son regard vers la route ;  - A first pictogram 401 indicating that the driver of the vehicle must position his hands on the wheel, his feet on the pedals and his eyes towards the road;
- Un deuxième pictogramme 402 indiquant que le conducteur du véhicule doit positionner ses mains sur le volant et son regard vers la route ;  A second pictogram 402 indicating that the driver of the vehicle must position his hands on the steering wheel and his gaze towards the road;
- Un troisième pictogramme 403 indiquant que le conducteur du véhicule doit positionner son regard vers la route ;  - A third pictogram 403 indicating that the driver of the vehicle must position his eyes towards the road;
- Un quatrième pictogramme montre une position dans laquelle le conducteur n'est pas contraint dans la position de ces mains, ces pieds et son regard.  - A fourth pictogram shows a position in which the driver is not forced in the position of these hands, these feet and his gaze.
Selon un mode de réalisation, lors de l'étape de détermination 210 du mode d'assistance, si plusieurs modes d'assistance sont disponibles alors le mode d'assistance prenant en charge le plus grand nombre de tâches de conduite est sélectionné. According to one embodiment, during the assistance mode determining step 210, if several assistance modes are available, then the assistance mode that supports the largest number of service tasks is driving is selected.
Selon un autre mode de réalisation, lors de l'étape de détermination 210 du mode d'assistance, si plusieurs modes d'assistance sont disponibles alors l'étape de détermination 220 d'une position comporte pour chaque mode 5 d'assistance disponible la détermination d'une position associée, chacune desdites positions étant ensuite indiquées 230 au conducteur. According to another embodiment, during the assistance mode determination step 210, if several assistance modes are available then the position determination step 220 comprises for each available assistance mode the determination of an associated position, each of said positions then being indicated 230 to the driver.
La figure 4 montre un exemple d'affichage indiquant que la première 401 et la deuxième 402 position sont disponibles alors que la troisième 403 et la quatrième 404 position sont indisponibles. L'indisponibilité d'une position î o est signalée par un affichage particulier, par exemple, une croix barrant la position. Figure 4 shows an example of a display indicating that the first 401 and the second 402 position are available while the third 403 and the fourth 404 position are unavailable. The unavailability of a position is indicated by a particular display, for example, a cross blocking the position.

Claims

REVENDICATIONS
1 . Procédé d'aide à l'activation de modes d'assistance d'un conducteur à la conduite d'un véhicule, ledit procédé étant mis en œuvre par une unité de pilotage (30) d'un système (1 ) d'assistance à la conduite, et comportant une étape de : 1. A method of assisting the activation of driver assistance modes for driving a vehicle, said method being implemented by a control unit (30) of a system (1) for assisting a driver driving, and comprising a step of:
- détermination (210) d'au moins un mode d'assistance disponible à partir d'un contexte de conduite,  determination (210) of at least one assistance mode available from a driving context,
ledit procédé étant caractérisé en ce qu'il comporte en outre des étapes de :said method being characterized in that it further comprises steps of:
- détermination (220) d'une position de conduite associée au mode d'assistance disponible déterminé, determination (220) of a driving position associated with the determined available assistance mode,
- émission (230) d'un signal, à destination du conducteur du véhicule, indiquant la position de conduite déterminée,  - emission (230) of a signal, to the driver of the vehicle, indicating the determined driving position,
- réception (240) d'une demande d'activation,  receiving (240) an activation request,
- en réponse à ladite demande, activation (250) du mode d'assistance associé à la position sélectionnée.  in response to said request, activating (250) the assistance mode associated with the selected position.
2. Procédé d'aide à l'activation selon la revendication 1 , caractérisé en ce que l'étape de détermination (220) d'un mode d'assistance associé à la position de conduite sélectionnée comporte la lecture d'une table associant les positions et les modes d'assistance. 2. A method of assisting activation according to claim 1, characterized in that the step of determining (220) an assistance mode associated with the selected driving position comprises reading a table associating the positions and modes of assistance.
3. Procédé d'aide à l'activation selon l'une des revendications précédentes, caractérisé en ce que le système (1 ) d'assistance à la conduite comporte au moins un des modes d'assistance suivants : 3. A method of assisting activation according to one of the preceding claims, characterized in that the system (1) for driving assistance comprises at least one of the following modes of assistance:
- Un premier mode d'assistance ne contrôlant ni le déplacement longitudinal du véhicule, ni son déplacement latéral, ledit premier mode d'assistance étant associé à une première position de conduite dans laquelle le conducteur du véhicule positionne ses mains sur le volant, ses pieds sur les pédales et son regard vers la route ; - Un deuxième mode d'assistance contrôlant le déplacement longitudinal du véhicule, mais pas son déplacement latéral, ledit deuxième mode d'assistance étant associé à une deuxième position de conduite dans laquelle le conducteur du véhicule positionne ses mains sur le volant et son regard vers la route ; - A first mode of assistance controlling neither the longitudinal displacement of the vehicle nor its lateral displacement, said first mode of assistance being associated with a first driving position in which the driver of the vehicle positions his hands on the wheel, his feet on the pedals and his gaze towards the road; - A second assistance mode controlling the longitudinal movement of the vehicle, but not its lateral displacement, said second mode of assistance being associated with a second driving position in which the driver of the vehicle positions his hands on the steering wheel and his eyes towards the road ;
- Un troisième mode d'assistance contrôlant le déplacement longitudinal du véhicule et son déplacement latéral, sous la supervision du conducteur, ledit troisième mode d'assistance étant associé à une troisième position de conduite dans laquelle le conducteur du véhicule positionne son regard vers la route ;  - A third mode of assistance controlling the longitudinal movement of the vehicle and its lateral movement, under the supervision of the driver, said third mode of assistance being associated with a third driving position in which the driver of the vehicle positions his eyes towards the road ;
- Un quatrième mode d'assistance contrôlant le déplacement longitudinal du véhicule et son déplacement latéral, sans la supervision du conducteur ledit quatrième mode d'assistance étant associé à une quatrième position de conduite dans laquelle le conducteur n'est pas contraint dans la position de ces mains, ces pieds et son regard.  A fourth assistance mode controlling the longitudinal displacement of the vehicle and its lateral displacement, without the supervision of the driver said fourth assistance mode being associated with a fourth driving position in which the driver is not forced into the position of those hands, those feet, and his look.
4. Procédé d'aide à l'activation selon l'une des revendications précédentes, caractérisé en ce qu'il comporte en outre une étape préalable mise en route de l'aide à l'activation de modes d'assistance par une pression sur une touche par le conducteur du véhicule. 4. A method of assisting activation according to one of the preceding claims, characterized in that it further comprises a preliminary step of starting the assistance to the activation of modes of assistance by a pressure on a touch by the driver of the vehicle.
5. Procédé d'aide à l'activation selon l'une des revendications précédentes, caractérisé en ce que, lors de l'étape de détermination (210) du mode d'assistance, si plusieurs modes d'assistance sont disponibles alors le mode d'assistance prenant en charge le plus grand nombre de tâches de conduite est sélectionné. 5. A method of assisting activation according to one of the preceding claims, characterized in that, during the step of determining (210) the mode of assistance, if several modes of assistance are available then the mode help desk that supports the largest number of driving tasks is selected.
6. Procédé d'aide à l'activation selon l'une des revendications 1 à 4, caractérisé en ce que, lors de l'étape de détermination (210) du mode d'assistance, si plusieurs modes d'assistance sont disponibles alors l'étape de détermination (220) d'une position comporte pour chaque mode d'assistance disponible la détermination d'une position associée, chacune desdites positions étant ensuite indiquées (230) au conducteur. 6. A method of assisting activation according to one of claims 1 to 4, characterized in that, during the step of determining (210) the mode of assistance, if several modes of assistance are available then the step of determining (220) a position comprises for each available assistance mode the determination of an associated position, each of said positions are then indicated (230) to the driver.
7. Système (1 ) d'assistance à la conduite comportant un module d'évaluation, une unité de pilotage (30), caractérisé en ce que ladite unité de pilotage (30) comporte : 7. A driving assistance system (1) comprising an evaluation module, a control unit (30), characterized in that said control unit (30) comprises:
des moyens de détermination des modes d'assistance disponibles à partir d'un contexte de conduite,  means for determining the assistance modes available from a driving context,
des moyens de détermination d'une position de conduite associée au mode d'assistance déterminée,  means for determining a driving position associated with the determined assistance mode,
des moyens de réception d'une commande de sélection d'une position de conduite du conducteur du véhicule,  means for receiving a command for selecting a driving position of the driver of the vehicle,
des moyens d'activation du mode d'assistance associé à la position sélectionnée.  means for activating the assistance mode associated with the selected position.
8. Véhicule caractérisé en ce qu'il comporte un système (1 ) d'assistance à la conduite selon la revendication précédente. 8. Vehicle characterized in that it comprises a system (1) for driving assistance according to the preceding claim.
EP16742346.6A 2015-07-03 2016-06-29 Driver assistance method that suggests a driving position according to a driving situation Withdrawn EP3317156A1 (en)

Applications Claiming Priority (2)

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FR1556290A FR3038281B1 (en) 2015-07-03 2015-07-03 METHOD FOR ASSISTING A DRIVER PROVIDING A DRIVING POSITION ACCORDING TO A CONTEXT OF DRIVING
PCT/FR2016/051617 WO2017006015A1 (en) 2015-07-03 2016-06-29 Driver assistance method that suggests a driving position according to a driving situation

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EP3317156A1 true EP3317156A1 (en) 2018-05-09

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JP4774851B2 (en) * 2005-07-29 2011-09-14 日産自動車株式会社 Driving attitude adjustment device for vehicle and driving attitude adjustment method for vehicle
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FR3038281B1 (en) 2017-07-21
WO2017006015A1 (en) 2017-01-12
FR3038281A1 (en) 2017-01-06
CN107735301B (en) 2020-10-09

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