Abstract

Vehicle ride comfort is one of the most important performances of vehicle; the research of automotive ride comfort is getting more and more important. In this paper, the subsystems dynamics analysis models were established separately, such as front suspension, rear suspension, person-chair system, steer system, tire and transmission subsystems, and then a vehicle dynamics analysis model is assembled by these subsystems in software-ADAMS. The dynamics analysis model is validated by the sample vehicle experiment results and used to analyze the ride comfort on random road. Finally, the influence and optimization of the spring stiffness, the shock absorber damping and the tire stiffness on vehicle ride comfort is studied.

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