某纯电动车型基于轻型车中国工况法的能量回收控制策略优化

Optimization of Energy Recovery Control Strategy for a Light Electric Vehicle Based on CHTC-LT

文章分析C-WTVC工况的车速-时间曲线、减速度分布。对纯电动汽车的减速工况进行建模,并构建各参数之间的关联图,以制动踏板行程作为联系地面摩擦力和制动能量回收力矩的关键因素。优化分配了不同车速情况下主动制动和再生制动的比重,优化后的分配算法经仿真计算,提升了循环工况内的回收能量,从而提升了整车经济性。

This paper analyzes the speed-time curve and deceleration distribution of CHTC-LT.The deceleration condition of an electric vehicle is modeled,and the correlation diagram between the parameters is constructed.The brake pedal travel is the key factor to contact the ground friction and braking energy recovery torque.The proportion of active braking and regenerative braking under different vehicle speeds is optimized.By simulation calculating,the optimized allocation algorithm is proved to be effective for improving the energy recovery in the cycle condition,and so as to improve the vehicle economy.