Structure Design and Research on a New Tire Emergency Inflation System

Abstract

Abstract Tire burst is huge harmful, a new tire emergency inflation system was put forward based on the airbag technology to reduce the harm of tire burst in this paper. Firstly, the pyrotechnic gas generator and its matching wheel hub were designed, the tire emergency inflation system model was established and the inflation process was simulated. The results show that the numerical model of tire emergency inflation system can well simulate the inflation process after tire burst. The peak time of gas production has little effect on the peak pressure of gas in the airbag after inflation. The peak time of gas production is different, but the final pressures in the airbag are all about 250 kPa, meeting the performance requirements. Therefore, the function of tire emergency inflation system designed can be realized.