一种电动汽车制动能量回收系统研究

文章以某款纯电动车制动能量回收系统为研究对象,首先,设计一种电液助力系统,阐述其结构方案和工作原理,接着基于该电液助力系统开展纯电动车串行制动能量回收系统设计研究,包括结构方案、控制方案、电气方案;实现在某款纯电动车产品上的搭载应用开发,结果表明,基于该电液助力系统的纯电动车能量回收系统,实现车辆在制动或减速阶段,机械-液压制动力与电机回馈制动力实时协调,最大限度地回收制动能量,并且获得较好的制动稳定性和“踏板感”,单个ECE循环工况经济性贡献率最高达28.9%。

Research on a Regenerative Breaking System for Electric Vehicles

Based on a pure electric vehicle regenerative braking system.Firstly,this paper designs an eBooster system,expatiates the scheme,working principle and parameter matching of the eBooster.Based on the eBooster system,the design and research of the serial regenerative braking system is carried out,including the structural scheme,the control scheme,Program.The results show that the energy recovery system of pure electric vehicle based on the electro-hydraulic power assisted system can realize the real-time coordination of mechanical hydraulic braking force and motor feedback braking force in the braking or deceleration stage of the vehicle,maximize the recovery of braking energy,and obtain better braking stability and pedal feeling performance.The economic rate of single ECE cycle road is as high as 28.9%.