纯电动汽车再生制动力控制策略优化研究

Research and Optimization of the Control Strategy for Regenerative Braking Force of Pure Electric Vehicles

针对纯电动汽车再生制动力分配因数不合理的问题,基于欧洲经济委员会(ECE)制动法规建立再生制动数学模型,得出符合ECE制动法规要求的前轴驱动纯电动汽车制动力分配因数范围,以及前后制动力分配的上下限,并优化ADVISOR软件中的制动能量回收控制策略。在ADVISOR软件中对修改后的制动能量回收模块进行仿真分析,结果表明,优化后的制动能量回收控制策略可以提高车辆在行驶过程中的能量回收效率。

Aiming at the unreasonable factors of force distribution of regenerative braking in pure electric vehicles, a mathematical model of regenerative braking was established based on the ECE braking regulations in order to obtain the scope of distribution factor for braking force of the front-axle drive pure electric vehicle, as well as the upper and lower distribution limits of front and rear brake force specified by ECE braking regulations while the control strategy for recovery of the braking energy in ADVISOR software could be optimized. With simulation analyses of the modified module for braking energy recovery in ADVISOR software, the results show that the optimized control strategy for braking energy recovery can improve the efficiency for energy recovery of the vehicles in driving process.