Abstract
This paper presents a parameter matching method for the vehicle equipped with air suspension with adjustable auxiliary chamber, which is intended to improve riding comfort of vehicles. A bus model with eight degrees of freedom was established, which also includes air suspension with adjustable auxiliary chamber models and four road input models. The matching values of auxiliary chamber volume under different loads are obtained by analyzing the relationship with natural frequency of air suspension. The damping coefficients of front and rear shock absorbers are optimized by genetic algorithm under various driving conditions. The integrated performance of vehicle is improved to a certain extent after suspension parameters matching.
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