电子节气门有限时间收敛反步控制器设计  

Convergence Back-Stepping Controller Design of Electronic Throttle in Limited Time

作　　者：郑朋涛 孙建民[1] Zheng Pengtao;Sun Jianmin(Beijing University of Civil Engineering and Architecture,Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles,102616,Beijing)

机构地区：[1]北京建筑大学城市轨道交通车辆服役性能保障北京市重点试验室,北京102616

出　　处：《汽车技术》2018年第7期27-31,共5页Automobile Technology

基　　金：北京长城学者培养计划(CIT&TCD20150312)

摘　　要：基于带扰动的非线性电子节气门数学模型,根据误差函数具有有限时间收敛特性设计的滑模函数,结合反步法和Lyapunov稳定性理论,在保证状态子系统稳定情况下,设计了电子节气门有限时间收敛无抖振反步滑模控制器,并利用非线性干扰观测器和连续化高增益法进行消抖振。理论分析和仿真试验验证表明,在55 ms左右系统达到稳定,并且稳态精度在1×10^(-3)数量级。该控制器具有响应速度快、跟踪性好、稳态精度高、无抖振等优点,对电子节气门的控制具有较强的适用性和有效性。A finite-time convergence chattering-free back-stepping sliding mode controller of electronic throttle was designed based on disturbed and nonlinear mathematical model, and according to error function that had finite-time convergence characteristic, and based on back-stepping and Lyapunov stability theory to make status subsystem under steady-state conditions. Nonlinear disturbance observer and continuous high gain method were used to eliminate chattering.Theoretical analysis and simulation experiments show the system becomes stable at approx. 55 ms, and stability accuracy stays at 1×10^-3. This controller has a strong applicability and effectiveness on electronic throttle with benefits including fast response speed, good traceability, high stability accuracy and chattering-free, etc.

关 键 词：电子节气门 LYAPUNOV稳定性理论 反步滑模控制 有限时间收敛 

分 类 号：U461.1[机械工程—车辆工程] TP273.3[交通运输工程—载运工具运用工程]