Track: Automation and Control

Abstract

Electronic throttle actuator is a nonlinear device which consists several effects of delay time, transmission friction,
throttle plate friction and return spring load. Each of the effects is a particular problem for accurate control of electronic throttle
controller, but the big problem one is a return spring load. It can lead the actuator to overshoot and undershoot behaviors. To
eliminate the behaviors, this paper presents a fuzzy strategy base on original design and anti-overshoot technique. First, the fuzzy strategy is a discrete fuzzy PI controller which provides easy tuning, robustness and rapid development. Second, the anti-overshoot technique is an anti-windup algorithm with simple architecture. Both of the presented are designed following cascade feedback control scheme, and also embedded into microcontroller chip for real experiment. In addition, this paper also reveals a single phase driver circuit for hardware setup. According to the experiment results, with best parameters for controller, the fuzzy strategy with anti-overshoot technique can carried out effectively, and guarantee a performance by using standard criteria such as an integral of square error (ISE), an integral of absolute error (IAE), an overshoot max (OVM) and a settling time max (STM).