电子节气门的非奇异快速终端滑模控制

发布时间：2018-04-11 16:56

本文选题：电子节气门 + 非奇异快速终端滑模控制　；参考：《湖南大学学报(自然科学版)》2017年08期

【摘要】：为了提高汽车电子节气门开度控制的响应速度和精确度,研究与设计了一种非奇异快速终端滑模控制策略.建立了电子节气门控制系统的非线性数学模型;利用节气门阀片实际开度与期望开度的误差及误差的导数设计非奇异快速终端滑模面和终端吸引子,使用扩张状态观测器估计开度的一阶导数,设计了不存在奇异控制量且收敛快速的节气门非奇异快速终端滑模控制器,证明了这种控制器的李雅普若夫稳定性;对4种参考输入信号使用非奇异快速终端滑模控制和普通滑模控制在MATLAB/simulink中进行了仿真.仿真结果表明,相比于普通滑模控制方法,非奇异快速终端滑模控制方法具有更短的调节时间和更小的跟踪误差,在4种参考输入信号的作用下,普通滑模控制器需要1s甚至1.2s的时间才可基本实现跟踪,且跟踪误差较大,而非奇异快速终端滑模控制器可确保电子节气门开度在0.1s实现对参考信号的跟踪,且跟踪误差的绝对值小于0.2°,同时冲击扰动信号作用下的仿真结果表明非奇异快速终端滑模控制器具有较好的鲁棒性.
[Abstract]:In order to improve the response speed and accuracy of automotive electronic throttle opening control, a non-singular fast terminal sliding mode control strategy is studied and designed.Using the extended state observer to estimate the first derivative of the opening, a fast terminal sliding mode controller of throttle with no singular control and fast convergence is designed, and the Lyapunov stability of the controller is proved.Four reference input signals are simulated in MATLAB/simulink using non-singular fast terminal sliding mode control and ordinary sliding mode control.The simulation results show that the non-singular fast terminal sliding mode control method has shorter adjusting time and smaller tracking error than the conventional sliding mode control method.It takes 1s or even 1.2s for the ordinary sliding mode controller to realize the tracking, and the tracking error is large. The non-singular fast terminal sliding mode controller can ensure the electronic throttle opening to track the reference signal at 0.1s.The absolute value of tracking error is less than 0.2 掳. The simulation results show that the nonsingular fast terminal sliding mode controller is robust.
【作者单位】：湖南大学电气与信息工程学院;
【基金】：国家自然科学基金资助项目(51577056)~~
【分类号】：TP273;U464.134.4

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