摘要
针对具有复位弹簧和摩擦本征非线性特性的电子节气门系统,设计了一种自适应前馈-反馈复合控制器,以实现节气门的高精度位置跟踪控制。复合控制器由前馈控制器、非线性自适应补偿器和PID反馈控制器组成,是基于Lyapunov稳定性理论和自适应Backstepping技术推导获得的。因此,所设计的控制器既具有PID控制只使用输出位置检测信号反馈的优点,又避免了控制非线性系统时传统PID增益参数确定的标定与试凑。控制器的有效性通过仿真给出了验证。
In view of electronic throttle systems with the typical nonlinear characteristic of return spring and friction, an adaptive feedforward-feedback composite controller is presented to achieve higher precise positioning of the throttle plate. The composite controller, which comprises a feedforword controller, a nonlinearity compensator and PID controller, is determined by utilizing Lyapunov stability theory and adaptive backstepping technique. Consequently, the advantage of the proposed controller is that only output measurement is used in feedback as the classical PID control and the calibration or trial and error for the proportional-integral-differential gain coefficients in the case of nonlinear systems can be avoided. The effectiveness of the controller is validated by simulation analysis.
出处
《燕山大学学报》
CAS
2013年第4期366-371,共6页
Journal of Yanshan University
基金
高等学校博士点专项科研基金-博导类项目(20111333110007)
关键词
电子节气门
典型非线性特性
PID控制
前馈控制
非线性补偿
自适应控制
electronic throttle
typical nonlinear characteristic
PID control
feedforward control
nonlinearity compensation
adaptive control
