The Design of Driving Throttle Machine Legs System Based on Ziegler Nichols PID Control

Abstract

Auto throttle controls directly the speed of the car. The driver can trample accurately and smoothly trample accelerator pedal to control the speed. In order to make the driver can real-time track the set the speed in the process of vehicle driving, a method based on Ziegler Nicholsfrequency response of the adaptive PID controller is proposed. The control circuit identifies online important critical frequency response characteristics of process object through input and output data in the process normal operation, and then the system online update PID controller parameters based on Ziegler-Nichols setting rules or by the improved method. The method can smoothly, rapidly and accurately control the throttle mechanical leg, and make driving robots has good speed tracking precision during the automatic driving of vehicle. The method has good stability and robustness.