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Method and system for estimating a boundary of a road

A road and boundary technology, applied in the traffic control system of road vehicles, collision avoidance system, traffic control system, etc.

Active Publication Date: 2017-09-19
VOLVO CAR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while EP2012211 proposes the use of radar to improve the quality of road boundary information and subsequently also support in an improved way to prevent impending or possible road departures, there is still room for improvement in the options for obtaining higher quality road boundary information

Method used

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  • Method and system for estimating a boundary of a road
  • Method and system for estimating a boundary of a road
  • Method and system for estimating a boundary of a road

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Embodiment Construction

[0036] Non-limiting embodiments of the present invention will now be described more fully with reference to the following accompanying drawings, in which presently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like reference numbers refer to like elements throughout, and reference numbers followed by one or more primes refer to similar previously described elements. Dotted lines in some blocks in the figures indicate that these units or actions are optional rather than mandatory. In the following, according to embodiments herein, a method for estimating a road boundary limiting eg a drivable lateral road surface is disclosed, relating to a vehicle estimating a road boundary on which the vehicle is located.

[0037] Referring now to the accompanying drawings in particular figure 1 , which schematically shows a vehicle-mounted exempli...

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Abstract

The invention relates to a method performed by a boundary estimation system loaded on a vehicle and used for estimating a boundary of a road on which a vehicle is positioned and which comprises at least a first lane marking forming straight and / or bending discontinuous or continuous lines on the pavement along the road. The system monitors surroundings of the vehicle, detects one or more positions of the at least first lane marking, and approximates a geometrical representation of the at least first lane marking based on one or more of the detected positions of the at least first lane marking. The system further detects one or more positions of a road boundary of the road, approximates a relative lateral offset between the geometrical representation of the at least first lane marking and the detected road boundary, and defines a fictive outer boundary of at least a section of the road based on laterally shifting the relative lateral offset of at least a section of the geometrical representation of the at least first lane marking.

Description

technical field [0001] The invention relates to a boundary estimation system adapted to be loaded on a vehicle and a method implemented therein for estimating the boundary of a road on which the vehicle is located. Background technique [0002] With countless cars traveling the roads around the globe 24 / 7, day and night, there is always the risk that a vehicle is about to go off the road for one reason or another. Road departures can result in bodily injury and / or damage to the host vehicle and / or other associated vehicles. In an attempt to prevent the vehicle from leaving the drivable road, cars may be provided with driver assistance systems. These systems may monitor the vehicle environment for possible imminent road departures and may further warn and / or intervene in the vehicle's steering and / or braking systems to avoid imminent or possible road departures. In order to assess the risk of a vehicle about to leave a road, it is desirable to determine the position of the ...

Claims

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Application Information

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IPC IPC(8): B60W40/06G08G1/16
CPCB60W40/06G08G1/167G06V20/588G01C21/005G01C21/30
Inventor C·奥尔森A·达尔贝克M·A·卡尔松
Owner VOLVO CAR CORP