The control problem of vehicle active air suspension is studied. On the basis of the conventional PID controller of vehicle active air suspension, fuzzy reasoning is used to revise the parameters of the conventional PID controller online, and a Fuzzy-PID controller based on single-wheel vehicle active air suspension is designed. Matlab modeling and simulation experiments are carried out on the single-wheel vehicle active air suspension controlled by Fuzzy-PID. The simulation results show that compared with the vehicle passive air suspension and the vehicle active air suspension controlled by conventional PID, the vehicle active air suspension controlled by Fuzzy-PID can greatly reduce the vehicle body acceleration and suspension dynamic travel, improve the vehicle ride comfort and handling stability, and has good robustness, thus verifying the effectiveness and practicality of the Fuzzy-PID controller. Abstract: We make a study of the control on vehicle active air suspension. On the foundation of conventional PID controller for vehicle active air suspension,we make a on-line parameter-revise to conventional PID controller by using Fuzzy reasoning and design Fuzzy-PID controller based on single wheel active air suspension. Using matlab/simulink module, we make modeling and simulation of single wheel active air suspension. The simulation results show that, Comparing with single wheel passive air suspension and single wheel active air suspension with the conventional PID controller, aingle wheel active air suspension with the Fuzzy-PID controller can improve vehicle ride comfort ,handling stability, and have good robustness.
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