基于制动力变比值优化分配算法的电动汽车再生制动控制策略研究  

Research on Regenerative Braking Control Strategy of Electric Vehicle Based on Optimal algorithm for Braking Force Variation Ratios

作　　者：姜标[1] 张向文[1,2] 汪阳雄 

机构地区：[1]桂林电子科技大学,桂林541004 [2]广西自动检测技术与仪器重点实验室,桂林541004

出　　处：《汽车技术》2017年第6期29-34,共6页Automobile Technology

基　　金：国家自然科学基金项目(51465011);广西自然科学基金项目(2014GXNSFAA118377)

摘　　要：提出一种根据电机转矩特性分配电动汽车前轴制动力的再生制动控制策略。为了验证该控制策略的有效性,在Matlab/Simulink环境下通过试验数据与数学模型相结合的方法,搭建了电动汽车再生制动系统的仿真模型,同时选择典型的UDDS与NEDC城市道路循环工况进行仿真。结果表明,与固定比值的制动力分配方式相比,在UDDS城市道路循环工况下,回收能量提高了7.98%,电池组SOC提升了1.54%;在NEDC城市道路循环工况下,回收能量提高了10.19%,电池组SOC提升了2.39%。A regenerative braking control strategy which distributes front axle braking force according to motor torque characteristic is presented in this paper. To verify validity of this control strategy, the simulation model of the regenerative braking system was constructed in Matlab/Simulink by combining the test data with math models, and the simulation was done with typical UDDS and NEDC urban road drive cycles. The results showed that compared with the fixed ratio distribution algorithm, the new control strategy can increase 7.98% regenerative energy and 1.54% battery pack＇s SOC for the UDDS driving cycle, and 10.19% regenerative energy and 2.39% SOC for the NEDC cycle.

关 键 词：电动汽车 再生制动 制动强度 制动力分配 能量回收 

分 类 号：U461.3[机械工程—车辆工程]