摘要
为了提高SUV高速紧急操纵下防侧翻性能,提出了基于模糊差动制动控制的防侧翻控制策略。研究中考虑轮胎非线性因素的影响,建立了4自由度非线性汽车侧翻模型,并通过横向载荷转移率负反馈设计了参数自整定的模糊PID控制器,以驱动电控机械制动系统(EMB)产生抗横摆力矩防止汽车侧翻。典型工况下的算例分析结果表明,该控制策略能充分发挥EMB响应快的特性,防止SUV高速紧急操纵下侧翻。
In order to avoid rollover accidents of sport utility vehicles （SUV）during critical manoeuvres with high speed,a fuzzy differential braking control strategy is proposed in this paper.In the strategy,considering the non-linear influence of tire,a nonlinear rollover model of four freedom degrees is established,and the fuzzy-PID controller based on the load transfer ratio feedback is designed in order to drive the electromechanical brake （EMB）system to produce yaw moment.The results show that the control strategy can make full use of the rapid response characteristic of EMB,and prevent the SUV from rolling under critical manoeuvres.
出处
《汽车技术》
北大核心
2008年第1期13-17,共5页
Automobile Technology
