Study on the Active Guidance Issue of Independently Rotating Wheels Based on Fuzzy Control
The bad guidance capability of independently rotating wheels is one of the problems that must be solved during the promotion and application of low-floor urban rail vehicles.Based on a fuzzy adaptive PID control strategy,this article takes the speed difference between the left and right independently rotating wheels for the control input and uses the SIMPACK single-car dynamic model of independently rotating wheels and the Simulink control strategy model for joint simulation study.It takes the lateral displacement,the yawing angle and the derailment coefficient of independent wheelset for the indices of evaluation,compares and analyzes the calculation results in three cases:without control,with classic PID control and with fuzzy adaptive PID control.It turns out that the active control can effectively improve the guidance capability of independently rotating wheels and that the fuzzy adaptive PID control strategy is better than the classic PID control strategy.