The Research On Automobile Anti-collision Warning And Cruise System

With economic development and growth amount of vehicles, road safety situation comes more and more serious, the front and side's probability of collision is much higher than others in car accidents.This paper based on the automotive active safety. The front and side anti-collision warning and cruise control on the system's hardware, consists of parameter selection, control program and software aspects of the analysis and research, emphasised on the hardware design, benchmark and experiment. This paper discussed the braking process with the state of car model, Selected Front Ranging System Requirements Millimeter Wave Radar ranging sensor, and designed transverse ultrasonic range sensor.Hardware system is divided into main control unit systems, radar ranging system of front and side measurement system, sound, voice warning systems, display systems, emergency assisted braking system. The definition of the system function is on the basis of the main control unit subsystem and front location, Selected Freescale's MC9S12DT256, a dedicated processor for complex and unstable system which could provides safe operation. And this paper identified system functions to finish the hardware system and software system, designed and drew hardware circuit, main board system and debuged these modules, I made experiments on the ultrasonic ranging experiments. The anti-collision warning and cruise system is not an independent system, but integrated CAN interface,it is easy to collect,data from bus interface, and be used for other equipment.Research on automobile anti-collision and the cruise is accordable to the direction of the Transportation intelligence and security needs, This paper discussed car anti-collision warning and cruise integrated development. It could improve the efficiency of road transportation with application prospects and economic growth if the system will be deeper stuyed constantly.