摘要
针对汽车线控电液制动系统建立了单轮车辆模型,研制了一种新的状态观测器对车速进行估算,试验结果表明该方法正确实用。采用切换增益模糊调节的滑模控制算法对非线性时变的车辆实施基于最佳滑移率的制动控制,在Matlab/Simulink中的仿真结果和验证试验都表明在汽车线控制动系统应用该算法是可行、有效的,在该算法的控制下汽车可获得比一般滑模控制更好的制动性能。
A single-wheel vehicle model（i.e.quarter vehicle model）is established for electro-hydraulic brake-by-wire system and a new state observer is developed to estimate the vehicle speed.The method is proved to be correct and pragmatic by test result.The sliding mode control algorithm with switch gain fuzzy modulation is adopted to exert brake control on nonlinear and time varying vehicle based on optimal slip rate.The results of both simulation with Matlab /Simulink and verification tests show that the application of the control algorithm to vehicle brake-by-wire system is feasible and effective,and the vehicle can have a better braking performance under the control of the algorithm compared to that with general sliding mode control.
出处
《汽车工程》
EI
CSCD
北大核心
2010年第3期228-233,共6页
Automotive Engineering
关键词
线控电液制动
切换增益
模糊调节
滑模控制
观测器
electro-hydraulic brake-by-wire
switch gain
fuzzy modulation
sliding mode control
observer
