电动汽车液压再生制动稳定性研究

摘要

针对电动汽车行驶里程短、电池寿命短、能量利用率低等缺点，提出一种新型液压制动能量回收系统。液压制动能量回收系统的引入改变了原车制动系统性能。借助电动汽车动力学建模对前后轴制动力分配系数β进行分析，并根据不同驱动形式对β范围进行分析与讨论。在满足ECE法规的前提下，最大限度地保证制动稳定性。%The electric vehicles have short range, short lifetime, short energy⁃efficiency etc. To solve the problem, a new hy⁃draulic regenerative braking system was presented. But the installation of the equipment on the vehicle caused the change of braking performance. Braking force distribution coefficientβwas analyzed by means of kinetics modeling, the range ofβwas discussed accord⁃ing to the different drive manners. Under the premise of regulations, braking stability is ensured to maximum.