EP2033013A1 - Assistant de changement de voie pour véhicules automobiles - Google Patents

Assistant de changement de voie pour véhicules automobiles

Info

Publication number
EP2033013A1
EP2033013A1 EP07728938A EP07728938A EP2033013A1 EP 2033013 A1 EP2033013 A1 EP 2033013A1 EP 07728938 A EP07728938 A EP 07728938A EP 07728938 A EP07728938 A EP 07728938A EP 2033013 A1 EP2033013 A1 EP 2033013A1
Authority
EP
European Patent Office
Prior art keywords
lane
vehicle
decision
driver
module
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Withdrawn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
EP07728938A
Other languages
German (de)
English (en)
Inventor
Dieter Hoetzer
Jochen Kaller
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 EP2033013A1 publication Critical patent/EP2033013A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids
    • B62D15/029—Steering assistants using warnings or proposing actions to the driver without influencing the steering system
    • 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
    • G01S2013/9315—Monitoring blind spots
    • 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
    • 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
    • G01S2013/93272—Sensor installation details in the back of the vehicles

Definitions

  • the invention relates to a lane change assistant for motor vehicles, having a sensor system for locating vehicles on secondary lanes in the rear space of the own vehicle, a decision module for deciding whether a vehicle located in the rear space is located on an immediate secondary lane, and a driver interface for outputting the decision result.
  • Such lane change assistants are intended to prevent the driver from switching to an adjacent lane when approaching from behind an overtaking vehicle on this side lane, so that there would be a risk of collision or at least a hindrance of the overtaking vehicle.
  • the sensor system used in such lane change assistants is usually a rear-space radar, that is to say a radar sensor which is directed backwards or obliquely backwards and is able to measure the distances, relative speeds and azimuth angles of the located vehicles. From the distance and the azimuth angle can then calculate the lateral offset of the vehicle and thus decide on which lane it is. In addition, it is calculated on the basis of the distance and the relative speed, whether a change to the
  • a warning is issued to the driver via the driver interface.
  • This warning may be in the form of an optical, acoustic or haptic signal.
  • Particularly expedient is the output of an optical signal by a display device which is integrated in the relevant exterior mirror of the vehicle.
  • the lane change assistant should be such that on the one hand unnecessary false warnings are avoided, on the other hand, however, a warning is issued in a real dangerous situation with high reliability. For this it is necessary that it can be decided reliably whether the located vehicle is really on the immediate left secondary lane (in countries with right-hand traffic). This decision is difficult because the locating signals of the sensor system are subject to certain error tolerances. Unless a video system with an electronic image evaluation device is available in the vehicle with which the lane markings on the roadway can be recognized directly, it is aggravating that the width of the traffic lanes is not exactly known and can only be estimated.
  • the object of the invention is to further improve the reliability of the lane change assistant.
  • the vehicle is equipped with a video system for monitoring the apron of the vehicle, its data can be used to determine its own lane.
  • vehicles that are equipped with a lane change assistant usually also a so-called ACC system
  • Adaptive Cruise Control which is monitored with a forward-looking radar sensor, the front of the vehicle and is used to locate vehicles ahead and to automatically regulate the distance of the own vehicle to the immediately preceding vehicle.
  • Adaptive Cruise Control which is monitored with a forward-looking radar sensor, the front of the vehicle and is used to locate vehicles ahead and to automatically regulate the distance of the own vehicle to the immediately preceding vehicle.
  • This case can be determined by statistical evaluation - A -
  • the transverse offsets of preceding, overtaking and overtaken vehicles determine how many lanes are present and on which lane the own vehicle is located.
  • the data of the rear-space radar can also be used for such a statistical evaluation. If the vehicle is equipped with an advanced navigation system, its digital map
  • stationary objects can be identified at the roadside, for example guardrail posts and the like, so that one can in this way
  • the width of a single lane can be calculated with relatively high accuracy. This information in turn helps to assign the located in the back space vehicles with higher reliability to the various lanes. Thus, the accuracy of the decision module can be improved in particular in the situations in which two or more left secondary lanes are present.
  • Figure 1 is a block diagram of a lane change assistant according to the invention.
  • FIG. 2 to 4 sketches to explain the operation of the lane change assistant in different traffic situations.
  • the lane change assistant shown in FIG. 1 comprises a sensor system 10, for example a rear-space radar, for locating vehicles and other objects in the rear space of the own vehicle, a decision module 12 for deciding whether a vehicle located by the rear-space radar is on the immediate left secondary lane or another lane and a driver interface 14 for issuing a warning to the driver in dependence on the decision result of the decision module 12.
  • a sensor system 10 for example a rear-space radar, for locating vehicles and other objects in the rear space of the own vehicle
  • a decision module 12 for deciding whether a vehicle located by the rear-space radar is on the immediate left secondary lane or another lane
  • a driver interface 14 for issuing a warning to the driver in dependence on the decision result of the decision module 12.
  • the decision made by the decision module 12 is not only dependent on the lane allocation of the located vehicle, but also on the measured distance and the relative speed of this vehicle.
  • the issuance of a warning to the driver will usually only take place if, due to the traffic situation or due to actions of the driver such as operation of the driving direction indicator, steering actions and the like can be seen that the driver intends to change lanes.
  • Means for detecting such a lane change request of the driver are known as such and will not be described here.
  • the decision module 12, which processes the various information and generates the command to issue the warning is formed in a known manner by an electronic data processing system with appropriate software.
  • the lane change assistant according to the invention additionally has a determination module 16, which serves to determine with the aid of known methods
  • Lane of a multi-lane directional lane is the own vehicle. These Information is made available to the decision module 12 and evaluated there, as will be explained below with reference to FIGS. 2 to 4.
  • Figure 2 shows a two-lane directional lane 18 with a right lane 20 and a left lane 22.
  • the own, equipped with the lane change assistant of Figure 1 vehicle 24 moves on the leftmost lane 22.
  • the sensor system 10 is in the
  • Vehicle 24 is symbolized by two rear-space radar sensors.
  • an ACC radar sensor 26 is indicated, which monitors the apron of the vehicle 24.
  • the vehicle 24 is followed on the left lane 22 by a vehicle 28 approaching at a higher speed.
  • the speeds of the vehicles are symbolized by arrows.
  • the vehicle 28 moves with respect to the own vehicle 24 slightly offset to the left. Based on the data of the sensor system 10 alone is therefore not easy to decide whether the vehicle 28 is on the same track as the vehicle 24 or on a left secondary lane. If it were on a left-hand side lane, there would be an acute danger of collision due to the high speed of the vehicle 28, and if, in addition, the driver's lane change intent is to be inferred, for example because the driver has for some reason set the left direction indicator, a warning would be displayed commanded the driver.
  • the determination module 16 provides the decision module 12 with the information that the own vehicle 24 is already on the far left lane 22, and thus neither left lane change possibility for the driver of his own
  • the decision module 12 can safely decide that the vehicles 24 and 28 are on the same lane and thus no warning is issued to the driver.
  • the situation illustrated in FIG. 3 initially differs from the situation according to FIG. 2 in that the own vehicle 24 is now located on the right lane 20. In addition, the following vehicle 28 travels close to the left edge of the left-hand lane 22. Without knowledge of the lane configuration, therefore, there is also the possibility that the vehicle 28 may be on a left-most (in reality non-existent) left-hand lane Side lane is located so that there is no risk of collision from this vehicle. Based on the data of the determination module 16, however, it is clear that the own vehicle 24 is located on the right lane of the two-lane directional lane 18, that is, the second lane from the left, and that there is thus no second left lane left. Consequently, the vehicle 28 must be on the immediate left
  • FIG. 4 illustrates the same situation as FIG. 3, but with the difference that the vehicles drive here in a three-lane directional lane 30, that is to say in FIG. that is, from the perspective of the vehicle 24 left secondary lane 22 is the middle lane of the roadway, and there is additionally an outermost left lane 32 available. Since the vehicle 28 again moves strongly offset to the left on the track 22, it can not be clearly determined from the data of the sensor system 10 whether this vehicle is located on the immediate left secondary lane 22 or on the leftmost lane 32. However, the knowledge provided by the determination module 16 that the track 32 is present still allows for the possibility that the vehicle 28 may be on that lane 32 and that no warning has to be given to the driver. However, this does not eliminate the ambiguity of the situation and additional information would be required to make a reliable decision.
  • stationary guard rail posts 34 are indicated on the left and right lane edge.
  • the ACC radar sensor 26 can not only locate these guardrail posts 34, but also detect by measuring the relative velocity that the absolute velocity of these
  • Guard rail post is zero, ie, it is stationary objects, which must therefore be located outside the carriageway 30.
  • An additional indication is the regular grid, in which these crash barrier posts 34 are usually arranged.
  • the total width of the directional road 30 can thus be determined to a good approximation. Dividing this total width by the also known number of lanes, we obtain a relatively reliable measure of the width of the individual lanes. Although the lane width determined in this way may still be faulty, it is certainly more accurate than a mere estimate. Based on this knowledge, it is therefore more reliable to decide whether the vehicle 28 is located on the immediate left secondary lane 22 or on the next-nearest secondary lane 32.
  • the result is that the vehicle 28 is on the immediate left secondary lane 22 and a warning is issued correctly.
  • the vehicle 28 were driving close to the right edge of the far left lane 32, unwanted false warning would be avoided due to the more precise knowledge of the lane width.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Electromagnetism (AREA)
  • Human Computer Interaction (AREA)
  • Traffic Control Systems (AREA)

Abstract

Assistant de changement de voie pour véhicules automobiles, comprenant un système (10) de détection pour localiser les véhicules sur les voies voisines dans l'espace arrière du véhicule propre, un module (12) de décision pour décider si un véhicule localisé dans l'espace arrière se trouve sur une voie directement voisine et une interface de conducteur pour délivrer le résultat de la décision, caractérisé en ce qu'il existe un module (16) de détermination pour déterminer la voie de circulation empruntée par le véhicule propre et que le module (12) de décision est configuré de manière à prendre la décision en fonction du résultat du module (16) de détermination.
EP07728938A 2006-06-13 2007-05-09 Assistant de changement de voie pour véhicules automobiles Withdrawn EP2033013A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006027326.5A DE102006027326B4 (de) 2006-06-13 2006-06-13 Spurwechselassistent für Kraftfahrzeuge
PCT/EP2007/054486 WO2007144239A1 (fr) 2006-06-13 2007-05-09 Assistant de changement de voie pour véhicules automobiles

Publications (1)

Publication Number Publication Date
EP2033013A1 true EP2033013A1 (fr) 2009-03-11

Family

ID=38461072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07728938A Withdrawn EP2033013A1 (fr) 2006-06-13 2007-05-09 Assistant de changement de voie pour véhicules automobiles

Country Status (5)

Country Link
US (1) US8040253B2 (fr)
EP (1) EP2033013A1 (fr)
CN (1) CN101467065B (fr)
DE (1) DE102006027326B4 (fr)
WO (1) WO2007144239A1 (fr)

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Also Published As

Publication number Publication date
US8040253B2 (en) 2011-10-18
CN101467065B (zh) 2011-12-07
US20090102629A1 (en) 2009-04-23
DE102006027326A1 (de) 2007-12-20
CN101467065A (zh) 2009-06-24
DE102006027326B4 (de) 2026-01-22
WO2007144239A1 (fr) 2007-12-21

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