Study on the Highway Vehicle Collision Avoidance and Warning System
This paper discusses an automotive collision avoidance and warning system based on millimeter-wave radar. With the theory and application research of proactive early-warning and avoidance control, we have established the avoidance control strategy and alg
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Abstract This paper discusses an automotive collision avoidance and warning system based on millimeter-wave radar. With the theory and application research of proactive early-warning and avoidance control, we have established the avoidance control strategy and algorithm.This system can identify the dangerous targets and automatically determine whether the vehicle is in a dangerous condition. According to the level of risk status, it will take appropriate measures such as alarming, decelerating or even automatically braking to reduce the likelihood of rear-end accidents and improve the driving safety on the highway. Keywords Collision avoidance Control strategy
Highway Target detection Safety distance
1 Introduction With the continuous development of modern traffic and automotive industry in recent years, the highway construction has developed rapidly. However, the traffic accidents occur more frequently than ever. On the highway, when encounters inclement weather, poor road conditions, traffic congestions or driver fatigue, the car would be prone to occur rear-end collisions, head-on collisions or even serial
F2012-F07-025 Y. Wang (&) X. Fei J. Wang X. Hao State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun, China
SAE-China and FISITA (eds.), Proceedings of the FISITA 2012 World Automotive Congress, Lecture Notes in Electrical Engineering 197, DOI: 10.1007/978-3-642-33805-2_45, Ă“ Springer-Verlag Berlin Heidelberg 2013
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collision accidents. According to the statistics of traffic accidents, two-car rear-end collision accidents account for 65 % and 80 % of traffic accidents could be attributed to drivers’ delayed response. Mercedes-Benz had done analysis of various types of accidents, and concluded that if the drivers could respond 0.5 s earlier they would avoid 60 % of rear-end collisions. Besides, 40 % of the side impacts and 30 % of frontal collisions can also be prevented. If they could have more time in advance to take measures, the vast majority of traffic accidents would be effectively prevented [1, 2]. Therefore, the vehicle active anti-collision warning system really has a great significance for the driving safety and it will achieve a broad market prospect.
2 System Components Vehicle active anti-collision warning system belongs to the context of active safety technology, and it is an auxiliary device to help drivers automatically avoid a car collision [3]. When moving, the vehicle can automatically discover other cars, pedestrians or obstacles which may cause a dangerous threat to the vehicle within the field of vision. When the system has predicted the coming danger, it can remind the driver or automatically control the vehicle to avoid collision accidents. The vehicle active anti-collision warning system has been shown in Fig. 1, including the following sections.
2.1 Information Collection System Information collection system consists of many sensors that used to obtain the host car speed, the target car speed, relative dist
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