Driving behavior state-based forward collision early warning method

A forward collision and behavior technology, applied in prediction, anti-collision system, traffic control system of road vehicles, etc., can solve problems affecting driving experience, traffic accidents, etc., achieve real-time guarantee, improve accuracy, and good adaptability Effect
CN110517486AInactive Publication Date: 2019-11-29SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2019-11-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a driving behavior state-based forward collision early warning method. The method specifically comprises the following steps that: S1, the driving behavior state parameters andvehicle motion parameters of a running vehicle are collected; S2, the actual response time of a driver in the running vehicle is acquired through a driver response characteristic calibration function; S3, a safety distance between the running vehicle and a target vehicle is determined according to a kinematics formula and the vehicle motion parameters; and S4, the safety condition of the runningvehicle is judged on the basis of the safety distance between the running vehicle and the target vehicle, and early warning is conducted according to the safety condition of the running vehicle. According to the method, with factors such as the dynamic characteristic of a driving state and a driving environment comprehensively considered, the response time of the driver is corrected, and therefore, the real-time performance of the response time is guaranteed; and a safety distance threshold value can be dynamically adjusted, and therefore, a vehicle distance model has good adaptability, and the accuracy of a forward collision early warning system is improved.
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Description

technical field

[0001] The invention relates to the technical field of automobile active safety, in particular to a forward collision warning method based on driving behavior state. Background technique

[0002] The continuous growth of motor vehicle ownership makes traffic accidents more and more serious, and rear-end collisions account for 40% of all road traffic accidents, which are the most frequent and costly accidents. With the development of intelligent communication technology, forward collision warning system (Forward Collision Warning System, FCWS) came into being.

[0003] The connotation of the forward collision warning system is: through various sensors, detect objects around the vehicle in real time, judge the distance, orientation and relative speed between the vehicle and the vehicle in front, and warn the driver when there is a potential danger. The core of the forward collision warning system is the safe vehicle distance warning model.

[0004] However, m...

Claims

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