电动汽车高压回路预充电阻选型设计

Selection and Design of Precharging Resistance for High Voltage Circuit of Electric Vehicles

高压预充是电动汽车高压管理中必不可少的环节,以某纯电动汽车为例,介绍电动汽车高压预充的原理,并针对预充电阻阻值及功率阐述详细的计算过程,提供预充电阻选型设计的思路,提高电动汽车高压回路的安全性,保证整车的安全运行。

The high voltage precharge is an indispensable link in the management of high voltage of electric vehicles.Taking a pure electric vehicle as an example,the introduction of the principle of high voltage precharge of electric vehicles,and the detailed calculation process for the pre-charge resistance value and power,provide the idea of the pre-charge resistance design,The safety of the high-voltage circuit of electric vehicles has been enhanced to ensure safe operation of the whole vehicle.