EP1689615A1 - Procede et dispositif pour alerter le conducteur d'un vehicule automobile - Google Patents

Procede et dispositif pour alerter le conducteur d'un vehicule automobile

Info

Publication number
EP1689615A1
EP1689615A1 EP04762454A EP04762454A EP1689615A1 EP 1689615 A1 EP1689615 A1 EP 1689615A1 EP 04762454 A EP04762454 A EP 04762454A EP 04762454 A EP04762454 A EP 04762454A EP 1689615 A1 EP1689615 A1 EP 1689615A1
Authority
EP
European Patent Office
Prior art keywords
values
vehicle
acceleration
deceleration
driver
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.)
Ceased
Application number
EP04762454A
Other languages
German (de)
English (en)
Inventor
Dirk Meister
Ulrike Ahlrichs
Ulf Wilhelm
Paco Haffmans
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1689615A1 publication Critical patent/EP1689615A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
    • 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
    • B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
    • B60K31/0008—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including means for detecting potential obstacles in vehicle path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/22—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle, or by means of contactless obstacle detectors mounted on the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/165—Anti-collision systems for passive traffic, e.g. including static obstacles, trees
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes

Definitions

  • the present invention relates to a method and a device that warns the driver of a motor vehicle that there is a traffic situation with an increased risk of collision.
  • signals of at least one object detector which represent motion variables of detected objects, and signals of at least one of their own motion sensors can be fed to an evaluation device.
  • the calculation device calculates in advance all possible movement trajectories for all detected objects and for one's own vehicle, taking into account maximum acceleration values or deceleration values and maximum temporal acceleration change values or deceleration change values, and, when it detects that a collision is imminent, issues a warning to the driver that higher Acceleration values or deceleration values and / or
  • Acceleration change values or deceleration change values are necessary in order to avoid a collision.
  • Hierbai this can be calculated in advance for a predetermined period of time, but a fixed time frame is not absolutely necessary for the calculation in advance.
  • a method and a device for triggering and executing a deceleration of a vehicle to avoid a collision in which objects in the sensor detection area are recognized by means of a device for distance and speed control of the vehicle and measurement variables are determined for each recognized object , the recognized objects based on the determined, associated measured variables of different object classes are assigned and the movement trajectories of the objects are predicted on the basis of the assignment of the recognized objects to the respective class.
  • WO 03/006290 discloses a method and a device for controlling deceleration devices of a vehicle during a braking operation, in particular a vehicle, which is equipped with a sensor for adaptive cruise control. During the braking operation, hazard measurements are determined on the basis of dynamic vehicle models that are individualized by signals from the environment sensors.
  • the essence of the present invention is to warn the driver of a motor vehicle equipped with an object detection device of driving situations with an increased risk of collision, in which the driver is informed in good time that acceleration or deceleration values and / or acceleration or deceleration change values are used Avoidance of a collision are necessary, which represent a movement dynamics of the vehicle, which lie above the vehicle dynamics felt to be comfortable.
  • the maximum acceleration values or deceleration values and the maximum temporal acceleration change values or deceleration change values are advantageously dimensioned such that the driver just perceives them as comfortable.
  • maximum acceleration values or deceleration values and the maximum temporal acceleration values or deceleration change values can advantageously be varied as a function of the instantaneous vehicle speed. For example, it can be provided that at higher longitudinal vehicle speeds, higher acceleration or deceleration values and / or higher temporal acceleration or Delay change values are provided.
  • the maximum acceleration values or deceleration values and the maximum temporal acceleration change values or deceleration change values can be varied depending on the driving situation recognized by the object detector.
  • the at least one object detector is advantageously a radar sensor, a laser sensor, an ultrasonic sensor or a video sensor or a combination thereof.
  • the motion sensor system is at least one speed sensor, an acceleration sensor and / or a yaw rate sensor.
  • control element which is provided for a control device.
  • a program is stored on the control device, which is executable on a computing device, in particular on a microprocessor or signal processor, and is suitable for executing the method according to the invention.
  • the invention is thus implemented by a program stored on the control element, so that this control element provided with the program represents the invention in the same way as the method for the execution of which the program is suitable.
  • an electrical storage medium for example a read-only memory, can be used as the control element.
  • FIG. 1 shows an exemplary traffic situation in which the device according to the invention and the method according to the invention can be used
  • FIG. 2 shows a model of the situation shown in FIG. 1 with the areas of stay derived from the possible movement trajectories
  • FIG. 3 shows a schematic block diagram of an embodiment of the device according to the invention
  • FIG. 4 a flow diagram of an embodiment of the method according to the invention.
  • FIG. 1 shows a single-lane road on which a false lane is provided for each direction of travel.
  • the method according to the invention and the device according to the invention can also be used for oncoming traffic in driving situations on multi-lane roads with or without lanes.
  • This object detector 2 can be, for example, a radar sensor, a laser sensor, a video sensor, an ultrasound sensor or a combination thereof and can be attached, for example, in the vehicle front area or in the area of the windshield.
  • the object detector 2 is advantageously aligned such that the sensor detection area 3 detects the area in front of the vehicle 1 and detects objects 5, 6 located therein.
  • the object detector 2 now recognizes the vehicles 5, 6 and can determine the distance d between these vehicles and their own vehicle, their relative speed vrel with respect to their own vehicle 1 and the azimuth angle alpha, which in combination with the distance d relates to the position of the vehicles 5, 6 the vehicle longitudinal axis of the own vehicle 1 is determined.
  • a coordinate system 4 is shown, which is advantageously a world coordinate system, that is to say represents a stationary coordinate system.
  • a first X axis is provided in the vehicle longitudinal direction and a further Y axis which is aligned in the vehicle transverse direction.
  • FIG. 2 shows the coordinate system 4, which corresponds to the world coordinate system from FIG. 1.
  • the X-axis which is aligned in the vehicle longitudinal axis and the Y-axis, which is aligned in the vehicle transverse direction, can again be seen in FIG.
  • a movement trajectory is calculated for a predetermined, future period of time t for the maximum accelerations or maximum decelerations as well as the maximum temporal acceleration changes or deceleration changes which are just perceived as comfortable by an average driver.
  • An average driver is essential when it comes to lateral vehicle acceleration more sensitive, so that the distances between the maximum trajectory areas 7, 8, 9 in the vertical direction to the vehicle movement direction are smaller than in the vehicle longitudinal direction, the maximum trajectory area opposite the vehicle movement direction being larger than the maximum trajectory area in the vehicle movement direction, since the driver perceives larger longitudinal deceleration values as comfortable , the longitudinal acceleration values and the acceleration and deceleration values, which are considered to be absolute, are comfortable as lateral transverse accelerations, such as occur, for example, as a result of steering maneuvers. This results in maximum movement trajectory regions 7, 8, 9, as are recorded in FIG. 2.
  • These maximum trajectory areas take the form of deformed ellipses, the main ellipse axes being aligned in the vehicle longitudinal direction and the ellipse minor axes being aligned in the vehicle transverse direction.
  • the main ellipse axes have much larger areas in the deceleration direction, which can be referred to as an elliptical tail, because the driver considers decelerations larger in magnitude to be comfortable than, for example, accelerations that represent the shorter main ellipse axes in the direction of travel and the amount of the minor ellipse axes is smaller than the main ellipse axes because an average driver reacts very sensitively to vehicle lateral accelerations and finds them uncomfortable even with small amounts.
  • An evaluation device 10 is shown in FIG. 3, which has, among other things, an input circuit 11. Input signals are fed to the evaluation device 10 by means of the input circuit 11.
  • signals from an object detector 2 are provided as input signals, which can be designed, for example, as a radar sensor, laser sensor, ultrasound sensor, video sensor or as a combination of these sensor types.
  • This object detector 2 detects objects 5, 6 which move within the detection area 3 and determines their distance d from the own vehicle 1, the relative speed V re ⁇ of the objects 5, 6 with respect to the own vehicle 1 and the azimuth angle alpha at which the objects 5, 6 currently stop with respect to the axis of symmetry of the detection area 3.
  • the object detector 2 determines further variables using the object detector 2, for example what type of object it is, for example whether this is a moving vehicle or a stationary object on the roadside or whether it is a passenger vehicle, a truck or a vehicle Two-wheeler deals. These determined quantities are from the object detector 2 of the input circuit 1 1 of the evaluation device 10 fed. Furthermore, a speed sensor 12 is provided, which determines the speed V of one's own vehicle 1 and feeds it to the evaluation device 10. Knowing one's own speed V makes it possible to convert the relative variables Vrel determined by means of the object detector 2 into absolute variables VI, V2.
  • a speed sensor 12 provided specifically for this purpose can be provided as the speed sensor 12, or a speed sensor 12 can be used which is provided for further vehicle functions, for example for an anti-lock device of the vehicle 1 or a driving dynamics control. Furthermore, a signal of an acceleration sensor 13 is fed to the evaluation device 10 via the input circuit 11, which advantageously detects longitudinal accelerations and lateral accelerations of the own vehicle 1 separately and feeds them to the evaluation device 10. The acceleration sensor 13 can alternatively also be dispensed with and the acceleration signal a can be calculated from a temporal differentiation of the speed signal V of the speed sensor 12.
  • a data exchange system 15 to a computing device 16, which can be designed, for example, as a microprocessor or signal processor.
  • the calculation device 16 determines manipulated variables for output to downstream actuators 18, 19, 20, in which the input variables are processed according to the method according to the invention and output variables are determined therefrom.
  • the output variables determined by the calculation device 16 are fed to an output circuit 17 by means of a data exchange system 15, by means of which the evaluation device 10 outputs manipulated variables to downstream actuators 18, 19, 20.
  • an actuator for example, an acoustic and / or visual warning device is provided, which is given to the driver in the form of a warning light or a plain text display, which can be attached, for example, in the area of the dashboard of the vehicle and by means of which a warning can be issued.
  • the acoustic and / or optical warning device can emit an acoustic warning signal, which can be, for example, a signal tone or a text output that explicitly states the reason for the warning to the driver.
  • reversible belt tensioners 19 as a warning device, which signal by one or more pretensioning of the seat belt of the driver or all vehicle occupants that the comfort limits with regard to vehicle acceleration or deceleration and / or the comfort limits with regard to the rate of change in acceleration or deceleration change over time have been exceeded , and higher accelerations or decelerations and / or higher temporal acceleration or deceleration change values are necessary to prevent a collision situation.
  • the delay devices 20 to which an output signal from the evaluation device 10 can be fed, to notify the driver of a corresponding warning signal by briefly decelerating the vehicle.
  • the provision of a short deceleration by means of the deceleration devices also has the advantage that this brief braking of the vehicle allows the coefficient of friction of the road to be determined and that the coefficient of friction of the road is known with regard to a later, sharp deceleration of the vehicle to prevent a collision, and accordingly Delay can be controlled.
  • the driver is informed intuitively by briefly braking the vehicle that there is a dangerous situation.
  • FIG. 4 shows an embodiment of the method according to the invention, which can run, for example, in the form of a control program in the computing device 16.
  • the object data which, for example, the object detector 2 has determined and is made available to the evaluation device 10 are read in in method step 21.
  • the movement data of the own vehicle 1, for example the own vehicle speed, are read V as well as your own vehicle acceleration A.
  • a specific driving situation of the vehicle 1 based on detected, stationary or moving objects within the detection area 3, for example whether it is a single-lane or multi-lane road, whether the road in the further driving course has curves or is recognized more as a straight, highway-like road, and possibly how large the traffic density in the section of the road ahead is due to the data supplied to the evaluation device 10 in the further method step 23 motion trajectory jectories for the recognized vehicles 5, 6 and the own vehicle 1 are calculated.
  • the determined driving situation is taken into account on the one hand and the maximum is assumed on the other Vehicle longitudinal and lateral accelerations or maximum temporal longitudinal or lateral acceleration change values, wherein the accelerations can also be decelerations, which calculate the maximum reachability of the objects within the time period t, while adhering to assumed comfort limits.
  • step 24 branches to “yes” and continues at step “end”. If it was determined in method step 24 that a collision while maintaining the comfort limits is unavoidable, for example because there is no remaining area without overlap taking the comfort limits into account, then step 24 branches to "No” and in the subsequent method step 25 a driver warning is issued by means of one or more of the Warning devices 18, 19, 20. After the driver warning has been issued in step 25, the flowchart is continued in step “End” and branches again to "Start", from where it is run through again.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Traffic Control Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif qui avertissent le conducteur d'un véhicule automobile qu'il se trouve dans une situation de circulation présentant un risque de collision élevé. Selon l'invention, des signaux d'au moins un détecteur d'objets, représentant des grandeurs de mouvement d'objets détectés, ainsi que les signaux d'au moins un système de détection de mouvement propre au véhicule du conducteur peuvent être acheminés à une unité d'évaluation. Une unité de calcul calcule, pendant une durée prédéterminée, des trajectoires de mouvement pour tous les objets détectés et pour le véhicule du conducteur, en prenant en considération des valeurs d'accélération ou de décélération maximales et des valeurs de variations temporelles d'accélération ou de décélération maximales. Lorsque l'imminence d'une collision est détectée, cette unité de calcul alerte le conducteur que des valeurs d'accélération ou de décélération supérieures et/ou des valeurs de variations d'accélération ou de décélération supérieures sont nécessaires pour éviter une collision.
EP04762454A 2003-11-28 2004-07-22 Procede et dispositif pour alerter le conducteur d'un vehicule automobile Ceased EP1689615A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10356309A DE10356309A1 (de) 2003-11-28 2003-11-28 Verfahren und Vorrichtung zur Warnung des Fahrers eines Kraftfahrzeugs
PCT/DE2004/001604 WO2005054008A1 (fr) 2003-11-28 2004-07-22 Procede et dispositif pour alerter le conducteur d'un vehicule automobile

Publications (1)

Publication Number Publication Date
EP1689615A1 true EP1689615A1 (fr) 2006-08-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04762454A Ceased EP1689615A1 (fr) 2003-11-28 2004-07-22 Procede et dispositif pour alerter le conducteur d'un vehicule automobile

Country Status (5)

Country Link
US (1) US7363155B2 (fr)
EP (1) EP1689615A1 (fr)
JP (1) JP4974220B2 (fr)
DE (1) DE10356309A1 (fr)
WO (1) WO2005054008A1 (fr)

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WO2005054008A1 (fr) 2005-06-16
JP2007512598A (ja) 2007-05-17
JP4974220B2 (ja) 2012-07-11
US7363155B2 (en) 2008-04-22
US20070282530A1 (en) 2007-12-06
DE10356309A1 (de) 2005-06-23

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