针对汽车电子节气门的跟踪控制要求,建立了面向控制器设计的非线性模型.采用输入整形(input-shaping)技术对跟踪输入信号进行滤波,应用backstepping方法设计了电子节气门的非线性控制器.将建模误差等不确定性看做加性外部扰动,分析了跟踪误差系统的输入到状态稳定性(input-to-state-stability,ISS),并据此给出了选择控制器参数的指导性准则.仿真实验表明基于backstepping的控制方法能够很好的实现电子节气门的跟踪控制.
For the better tracking performance of automotive electronic throttles,this paper presents a control-oriented nonlinear electronic throttle model.The input-shaping technique is applied to filtering input signals and the backstepping technique is used to derive the nonlinear controller.Modeling errors are considered as additive disturbances and the controller is designed such that the error dynamics is input-to-state stable(ISS).Based on this,a guideline for selecting the controller parameters is given.Finally,simulation results are provided to demonstrate the effectiveness of the proposed controller.