This fact has shown that the combination of hi-tech materials and common materials is more widely applied in sealing system for passenger cars.

Aiming at the requirements of compulsory standard,the requirements of fuel system safety in rear-end collision for passenger vehicle,the design method of rear-end structure of passenger vehicle is studied.

The thriving and prospering of Auto industry in china, is brighter than ever, vehicle especially PV(passenger vehicle) in 2004 is at the stage of transfer from sailing market to buying market after through two years high speed development ,the competition between auto manufacture become more and more fierce.

Based on the producing mechanism analysis of unburned hydrocarbon emission exhausted by gasoline engines,and the actual detected HC emission sample data of a given type passenger cars on idle condition,the statistical laws of HC emission have been researched,the distribution function and the distribution density function models used to describe these laws have been established too.

Domestic mini-passenger-vehicle makers have formed their advantage in competition,which benefits from attribute of the vehicle,its desirability from external environment and support from social forces.

This paper analyzed the factors influencing Chinese mini-passenger-vehicle development from macroscopic and medium views by means of quantitative and qualitative methods,drew a breakthrough of further developing mini-passenger-vehicle,and expanded its developmental space.

Using the comprehensive evaluation of the main performances of ordinary passenger car as chief evaluation goal on the basis of ergonomics combining the practice, the evaluation index system is established by analyzing the system and dividing the targets.