PID Control Analysis of Brake Test Bench

In this paper, the control methods of brake test bench are studied. According to as much as possible consistent principle of braking process between on the test bench and road test vehicle, by controlling motor to work under certain regular current, compensate lack energy owing to the shortage of electricity, establish control model of equivalent inertia and vehicle load. At the same time, we make the model of current with speed, torque, inertia and other observable, also introduce PID control technology, and obtain PID control model which compensate for deficiency in control current model. Through stochastic simulation and disturbance simulation, we verify the accuracy and reliability of PID model.