摘要
提出了基于查询方式的车辆液压制动轮缸压力估算算法,设计了基于压力反馈的ESP制动执行器控制算法。采用硬件在环试验方法建立了轮缸增、减压电磁阀占空比与轮缸压力的关系。试验表明:轮缸压力的估算值与实际值有很好的一致性;基于估算压力反馈的ESP能有效改善汽车在极限转向工况下的操纵稳定性。
A vehicle wheel hydraulic cylinder pressure estimation algorithm was presented based on query mode,and a control algorithm of brake actuator with pressure feedback was devised for electronic stability program（ESP） .The relationship between the duty ratio of wheel cylinder solenoid valves for increasing and decreasing pressure and the pressure in the wheel cylinder was established using hardware-in-the-loop tests.A wheel hydraulic cylinder pressure estimation algorithm was achieved.The tests showed that the estimated cylinder pressures are in good agreement with their actual values,and the proposed ESP with feedback by estimated pressure improves the vehicle handling and stability performance at extreme steering conditions.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2010年第6期1478-1481,共4页
Journal of Jilin University:Engineering and Technology Edition
基金
吉林省科技发展计划项目(20080144)
国家自然科学基金项目(50805063)
教育部新世纪优秀人才支持计划项目(NECT-09-04-21)
吉林大学基本科研业务费项目(421032512415)
关键词
车辆工程
电子稳定性程序
制动轮缸压力
估算算法
硬件在环试验
操纵稳定性
vehicle engineering
electronic stability program
brake wheel cylinder pressure
estimation algorithm
hardware-in-the-loop test
handling and stability performance
