摘要
从人、车与路闭环系统快速实现驾驶员操纵意图角度出发,在现有汽车稳定性控制系统多采用车辆2自由度参考模型的基础上引入驾驶员施加的转向盘转动角速度参数,更为全面地描述驾驶员转向的急迫程度和车辆转向运动趋势,进而考虑当前时刻及前一状态车辆不足或过度转向趋势,针对车辆不足转向、过度转向和反向转向等典型行驶工况设计出16种单轮优选控制工况和16种多轮优选控制工况及其切换机制,实施冬夏季的实车场地试验测试。场地试验表明,提出的多控制工况及切换机制在保障车辆稳定性的前提下,提高了汽车稳定性控制系统对驾驶员行驶意图改变时车辆的快速响应性能。
From the point of view of rapid response to driver＇s intention in driver-vehicle-road closed loop system, the rate of steenng wheel angle is introduced into vehicle dynamics model of two degree of freedom which is most used to comprehensively represent the intensity of driver steer maneuver and is adopted as the reference model by almost all electronic stability program（ESP）. Meanwhile, considering the vehicle current state and previous states of the tendency of understeering or oversteering, an improved ESP is established and consists of 32 control states totally including sixteen control states in which one single road wheel is braked and the other sixteen control states in which multi-wheel is braked actively. Finally the field experiments of ESP in summer and winter have been implemented and the results show that the new ESP algorithm can obviously improve response performance for the change of driver maneuver and enhance vehicle stability performance effectively.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2014年第4期107-112,共6页
Journal of Mechanical Engineering
基金
国家自然科学基金(50975120)
教育部科学技术研究重点(108041)
教育部优秀新世纪人才支持计划(NCET-08-0247)
长江学者和创新团队发展计划(IRT1017)资助项目
关键词
稳定性控制
控制工况切换机制
驾驶员行驶意图
多轮制动控制
electronic stability control
control states and switch conditions
driver＇s intention： multi-wheel active brake
