EP1523688A1 - Dispositif pour la surveillance du champ peripherique a partir d'un vehicule - Google Patents

Dispositif pour la surveillance du champ peripherique a partir d'un vehicule

Info

Publication number
EP1523688A1
EP1523688A1 EP03763577A EP03763577A EP1523688A1 EP 1523688 A1 EP1523688 A1 EP 1523688A1 EP 03763577 A EP03763577 A EP 03763577A EP 03763577 A EP03763577 A EP 03763577A EP 1523688 A1 EP1523688 A1 EP 1523688A1
Authority
EP
European Patent Office
Prior art keywords
vehicle
objects
evaluation module
sensor system
reversible
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
EP03763577A
Other languages
German (de)
English (en)
Inventor
Alfred Kuttenberger
Dirk Weber
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 EP1523688A1 publication Critical patent/EP1523688A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204—Actuation parameters of safety arrangents
    • B60R2021/01252—Devices other than bags
    • B60R2021/01265—Seat belts
    • B60R2021/01272—Belt tensioners
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/588—Velocity or trajectory determination systems; Sense-of-movement determination systems deriving the velocity value from the range measurement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
    • G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9322—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using additional data, e.g. driver condition, road state or weather data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9323—Alternative operation using light waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9324—Alternative operation using ultrasonic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93271—Sensor installation details in the front of the vehicles

Definitions

  • the invention relates to a device for environmental monitoring in a vehicle according to the preamble of the independent claim.
  • a device for environmental monitoring in a vehicle which has an environmental sensor system with a predetermined detection range, an evaluation module for evaluating a signal of the environmental sensor system being present.
  • the device according to the invention for monitoring the environment in a vehicle with the features of the independent patent claim has the advantage that the selection of objects through an environment and situation interpretation limits the environment sensors to precrass-relevant objects. This selection is advantageous in order to only report objects that could actually lead to an accident. There is thus a better differentiation between crash-relevant and non-crash-relevant objects, so that misuse cases in particular are avoided.
  • the parameters according to which the device according to the invention selects the relevant objects are the relative speed between the vehicle and the respective object, the direction of the relative speed and the curve radius, and the type of traffic.
  • the type of traffic means, for example, whether there is right-hand or left-hand traffic.
  • the starting point is a sensor system with one or more sensors that continuously detect objects.
  • the detection area has a fixed aperture angle and a fixed range. Sometimes a large number of objects can be detected that are in the detection range of the sensor system.
  • the attention window is also based on the probability of occurrence of objects in this area.
  • the distance in front of the vehicle depends on the relative speed, in special cases only the vehicle speed when the time is fixed.
  • a reversible belt tensioner always has the same activation time. Accordingly, the attention window at larger speeds must also be larger in the x direction in order to provide the restraining means with the corresponding time in a larger area by object tracking.
  • the attention window in the y direction i.e. in the transverse direction, depends on the relative speed between the vehicle and the object. At high speeds, the likelihood of objects approaching the vehicle at a larger angle of entry is quite low. Accordingly, the attention window in the y direction can be chosen to be smaller.
  • the attention window in the y direction is a function of the curve radius.
  • a small curve radius requires a large attention window in the y direction.
  • the evaluation unit of the device according to the invention can be connected to at least one restraint, the evaluation unit controlling the at least one restraint as a function of the tracking of the at least one object.
  • the evaluation unit generates a control signal to trigger the corresponding restraint devices.
  • the restraining means are designed to be reversible or at least partially reversible. These include, in particular, reversible belt tensioners or an extendable bumper.
  • FIG. 1 shows a block diagram of the device according to the invention
  • FIG. 2 shows two situations for the functioning of the invention
  • FIG. 1 shows the device according to the invention in a block diagram.
  • a sensor system. 1 is connected to an evaluation unit 2 via a data output.
  • the evaluation unit 2 is connected to a control device for restraint means 3 via a data input / output.
  • This control unit 3 is in turn connected to a reversible belt tensioner 4 via a first data output, to an extendable bumper 5 via a second data output and to airbags 6 in the vehicle via a third data output.
  • the sensors 1 are distance sensors, which means that they include environment sensors such as video, radar, ultrasound or infrared sensors that are suitable for monitoring the environment.
  • the control unit 3 is connected to impact sensors, not shown here, which detect an actual crash. It will then mostly be acceleration sensors, but deformation sensors can also be used here.
  • the sensor system 1 already supplies a digital data stream to the evaluation module 2.
  • the sensor system 1 has a signal processing unit and an analog-digital converter.
  • the evaluation module 2 can be a processor or dedicated hardware, that is to say an integrated circuit manufactured for this purpose.
  • the sensor system 1 and the evaluation module 2 can both be arranged in one housing.
  • the sensor system 1 is arranged remote from the evaluation module 2, for example by different ones To connect video sensors that are attached to the vehicle with only one evaluation module 2.
  • a remote connection it is possible that either each individual sensor of the sensor system 1 is connected to the evaluation module 2 via a two-wire line, or that an entire sensor bus is used to connect the individual sensors of the sensor system 1 to the evaluation module 2, for example as a bus -Master to connect.
  • the connection can be realized electrically, optically or via radio waves. If the evaluation module 2 is set apart from the sensor system 1, then this evaluation module 2 acts like a control unit and can optionally also be arranged with the control unit 3 in a housing.
  • the evaluation module 2 and the control unit 3 are arranged in different housings, then the connection between them is realized either by a two-wire line or again by a bus that connects several control units to one another.
  • the control unit 3 itself calculates the triggering algorithm for the restraint means 4, 5 and 6.
  • the signal from the sensor system 1 is also used in order to trigger reversible restraint means such as the belt tensioner 4 and the extendable bumper 5 even before the impact.
  • An adaptive airbag that is inflated relatively softly, i.e. with a short inflation time, can also be triggered early before the actual crash occurs.
  • Other parameters that are included in the triggering algorithm are the signals from the impact sensors, that is to say, for example, as shown above, the acceleration sensors.
  • the evaluation unit 2 now selects the objects from the objects detected by the sensor system 1 which, taking into account parameters such as the relative speed between these objects and the vehicle, their direction and the driving situation as well as the road surface could be relevant for an accident.
  • the available resources are used for the potentially dangerous objects and not on the safe objects, so that there is no loss of performance due to a large number of objects.
  • the selection of objects prevents the occurrence of so-called misuse cases, i.e. non-triggering cases, which trigger, however.
  • the selected objects are then tracked with the sensor system 1. If the evaluation module 2 detects that a tracked object is less than a predetermined distance from the vehicle, then a signal is transmitted to the control unit 3 that the restraining means that are to be triggered first are to be triggered. This includes especially reversible belt tensioners. This predetermined distance around the vehicle is therefore a time limit for the use of such restraint devices. However, even after this distance has been fallen short of, the object continues to be tracked in order to be able to make precise statements about a possible future crash course in order to achieve an adaptive use of restraint devices. Several such distance values can be specified in order to determine an optimal point in time for the release of these retention means for the respective retention means depending on their release times.
  • FIG. 2 now shows two typical situations for the use of the device according to the invention in partial images A and B.
  • a vehicle 7 has a detection area 8 via its sensor system 1, which is continuously monitored by the sensor system, for example radar. If the vehicle 10 now enters the detection area 8, this is recognized by the sensor system 1, and parameters such as the relative speed and their direction to the vehicle 7 are determined. Depending on these parameters, an attention area 9 is defined with a predetermined distance 13, below which the restraint means, such as the reversible belt tensioner 4, are triggered by the vehicle 10. The vehicle speed is much higher in FIG. 2a than in FIG. 2b, so that the attention area 9 extends to the outer limit of the detection area 8.
  • a vehicle 15 now has a sensor system 1, again with the detection area 8 and the attention area 12.
  • the distance limit 14 is defined, below which the reversible belt tensioner 4 is triggered.
  • the vehicle 11 traverses the direction of travel of its own vehicle.
  • the relative speed between vehicles 15 and 11 is significantly lower here than in FIG. 2a between vehicles 7 and 10. Therefore, attention area 12 can be significantly smaller than attention area 9.
  • FIG. 3 shows a flowchart of the method that runs on the device according to the invention, in particular on the evaluation module 2.
  • object in the detection area 9 are detected with the aid of the sensor system 1 and the evaluation module 2.
  • the parameter determination is then carried out in method step 21, the relative speed between one's own vehicle and the objects being determined here. Also the direction of the Relative speed is determined here in order to be able to estimate whether a collision is imminent.
  • Other parameters that are included here are the curve radius and the type of traffic, for example right-hand or left-hand traffic.
  • Other data such as the driving behavior of the other objects can also be included here as parameters.
  • the individual parameters are weighted in order to make a statement, namely in method step 22 which objects are relevant and in method step 23 must be subjected to target tracking in order to trigger the restraint means as early as possible in the event of a possible crash.
  • method step 24 it is then monitored whether the objects being tracked are highly likely to cause a collision with one's own vehicle. This is monitored on the basis of the predetermined distances 13 and 14, specifically by falling below them. If the vehicle falls short of such a safety distance, then a jump is made to step 25 after step 24 in order to trigger the corresponding restraint means, which is linked to the falling below this distance value. If, however, there is no possible collision due to a test in method step 24, the object is further followed in method step 23.
  • Several objects can be tracked at the same time, but this number should be as small as possible in order to achieve effective resource utilization of the existing hardware and software. An excessive number of objects to be tracked would significantly reduce the response time of the device according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un dispositif pour la surveillance du champ périphérique à partir d'un véhicule, lequel se caractérise en ce que des objets sont sélectionnés dans une zone de détection du système de capteurs, cela en fonction de paramètres, de sorte que seuls les objets sélectionnés sont suivis par le système de capteurs. Cela permet l'utilisation adaptative de moyens de retenue en particulier réversibles.
EP03763577A 2002-07-11 2003-02-26 Dispositif pour la surveillance du champ peripherique a partir d'un vehicule Ceased EP1523688A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10231362 2002-07-11
DE10231362A DE10231362A1 (de) 2002-07-11 2002-07-11 Vorrichtung zur Umfeldüberwachung in einem Fahrzeug
PCT/DE2003/000613 WO2004008174A1 (fr) 2002-07-11 2003-02-26 Dispositif pour la surveillance du champ peripherique a partir d'un vehicule

Publications (1)

Publication Number Publication Date
EP1523688A1 true EP1523688A1 (fr) 2005-04-20

Family

ID=29761888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03763577A Ceased EP1523688A1 (fr) 2002-07-11 2003-02-26 Dispositif pour la surveillance du champ peripherique a partir d'un vehicule

Country Status (4)

Country Link
US (1) US7616101B2 (fr)
EP (1) EP1523688A1 (fr)
DE (1) DE10231362A1 (fr)
WO (1) WO2004008174A1 (fr)

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US7616101B2 (en) 2009-11-10
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US20060164218A1 (en) 2006-07-27

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