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Forward collision early-warning method and system based on curve self-adaption

An early warning system and adaptive algorithm technology, applied in the field of vehicle driving assistance systems, can solve problems such as false early warning

Inactive Publication Date: 2017-04-26
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0004] The purpose of the present invention is to provide a forward collision warning method based on a curve adaptive algorithm, to solve the problem that vehicles in other lanes are easily regarded as obstacles in this lane and false warnings occur in curves

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  • Forward collision early-warning method and system based on curve self-adaption
  • Forward collision early-warning method and system based on curve self-adaption
  • Forward collision early-warning method and system based on curve self-adaption

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] like figure 1 The shown cooperative forward collision warning system based on the curve adaptive algorithm includes a short-range wireless communication module 1 , a GNSS positioning module 2 , an embedded control unit 3 and a driving computer 4 . Short-range wireless communication module 1 and GNSS positioning module 2 are connected with embedded control unit 3 through CAN or Ethernet interface as data input unit, and wherein short-range wireless communication module receives the target vehicle driving state information ( Including: position, heading, speed, acceleration, yaw rate, etc.), and send these information to the embedded control unit 3, the GNSS positioning module receives the satellite positioning information, generates the driving status information of the vehicle, and the position of the vehicle, Heading, speed, acceleration and angular velocity a...

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Abstract

The invention discloses a forward collision early-warning method and a forward collision early-warning system based on curve self-adaption, which can prevent the misinformation condition of listing vehicles in lateral lanes as early-warning vehicles through judging whether a target vehicle and a present vehicle are in the same lane after determining whether a horizontal coordinate distance between the two vehicles is within a set lane width. Moreover, a prediction trajectory of the present vehicle serves as a vertical axis of a local coordinate system, so that the vertical axis of the local coordinate system can change along with the road profile automatically, therefore, the forward collision early-warning system can adapt to a curve scene.

Description

technical field [0001] The invention belongs to a vehicle driving assistance system, and in particular relates to a forward collision warning method and system based on curve self-adaptation. Background technique [0002] Vehicle forward collision warning system (Forward Collision Warning System, FCWS) is an important part of Advanced Driver Assistance Systems (Advanced Driver Assistance Systems, ADAS), which has an efficient preventive effect on frequent rear-end collisions in road traffic accidents. [0003] The existing radar-based vehicle forward collision warning system can only be applied to the straight road, and it is easy to take the vehicles in other lanes as obstacles in the lane at the bend and generate false warning, which affects the normal driving of the driver. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to provide a forward collision warning method based on a curve adaptive algorithm, so as to solve the problem that vehicles i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/16
CPCG08G1/166G08G1/167
Inventor 牛雷李增文张盼蒲果刘鑫邓杰
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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