Development Of The Control System Of The Vehicle Crash Energy Absorption Device Based On Braking Acceleration Integration Algorithm

With the development of society, demands for vehicle safety are getting higher and higher. How to reduce the traffic accident has become a problem outstanding in the Automobile industry. The current active safety system in the field has difficulty in getting a lower accidents rate due to the complex reason for the sudden accident. Under this circumstance, the trend has been formed about the research by combing the active with the passive safety technologies in many organizations. However, most methods of the current combination still remain the combination of styles, that is, merely a vehicle uses active security technology and passive safety technology simultaneously. The research group innovatively make the accident prediction technologies of the active safety technologies closely combined with the structure absorption of the technology passive and gives new meaning.to reach the "1+1 >2"results.This paper summarizes the current status of automotive safety technology. Based on the subject of a new combination of active and passive vehicle car crash energy absorption system, vehicle combining active and passive energy absorption of new cars in the system control part has been researched. It discusses the airbag triggering method and proposes point-based automobile brake acceleration algorithms in order to identify the emergency braking behavior of the car drivers to determine whether the accident occurred. The integration method of using moving window control system hardware circuits and software programs is designed. And through collecting real vehicle experiments at different speeds of a vehicle emergency braking, the normal brake, pumping the brakes, and the passing the road blocks and so on we collect four kinds of acceleration signals, mobile window integration method can distinguish the driver's emergency braking behavior in time has been analyzed and it has been tested. This paper describes the determinate principle of the key parameters in the System algorithm, and determines the reasonable integration time window width and the integral threshold which are used to distinguish the emergency braking conditions from other conditions.In the article, model validation is then carried out with two experimental data's which validates the effectiveness of control system of the energy-absorbing structure during the collision accident occurred. It has provided a powerful support for further development of the new model.