电动汽车制动能量回收的设计

Design of Electric Car Braking Energy Recovery

电动汽车一次充电的续驶里程短,已成为制约电动汽车发展的主要问题。电动汽车采用再生制动来回收制动能量是增加电动汽车续驶里程的有效方法之一。给电动汽车安装电制动系统,可以回收在制动过程中的一部分动能,并转化成电能再利用。文章设计了一种电制动系统,将制动过程中产生的交流电整流,通过DC-DC直流变换器把电能充进电池,提高了电能的利用率,从而增长续航里程。

Trip range of the electric car on a single charge is short,which has become the main problems restricting the development of electric vehicles.Using regenerative braking to recycle braking energy on electric cars is an effective way to increase trip distance of the electric car.To install electric braking system in electric vehicles can recycle a part of kinetic energy in the braking and turn it into recyclable energy.The article designs a kind of electric braking systen^which alternating current （ ac）rectifier in the braking process and charge it into the battery through the converter between DC-DC and DC,thus the electric energy efficiency is increased and the trip distance is increased.