摘要
介绍了一种后驱并联式液压再生制动汽车的基本结构,分析了液压再生制动的基本原理和整车制动控制器的工作过程,提出了一种基于制动强度、车速、理想制动力分配曲线和ECE制动法规的制动力分配策略,包括前后轮制动力的一次分配和后轮制动力的二次分配。在MATLAB/Simulink环境下建立了整车制动仿真模型,并进行了仿真分析。分析结果表明,在城市轻度制动工况下,车辆的制动能量利用率较高,验证了所提出的控制策略的正确性。
The basic structure of a rear-drive parallel Hydraulic Hybrid Vehicle （HHV） is introduced, and the principle of hydraulic regenerative braking and the working process of the whole vehicle brake control system are analyzed. Based on the different brake intensity, the speed of a motor vehicle, the ideal brake force distribution curve and Economic Commission for Europe（ECE）braking regulations, a control strategy was proposed to determine the brake force distribution for braking process of vehicle, including the primary brake-force distribution between front wheels and rear wheels, and the l^rake force redistribution of rear wheels. Then, the model of the whole vehicle braking process was built and simulated in MATLAB/Simulink environment. The results of the simulation show that, under the city traffic conditions of mild brake, braking energy utilization rate is higher, and prove that the proposed control strategy is correct.
出处
《农业装备与车辆工程》
2013年第2期9-13,共5页
Agricultural Equipment & Vehicle Engineering
关键词
液压再生制动汽车
制动力分配
控制策略
hydraulic regenerative vehicle
braking force distribution
control strategy
