基于模糊规则的电动汽车机电复合制动力分配策略  

The Strategy of Braking Force Distribution for Electromechanical Composite Braking System Based on Fuzzy Rule

作　　者：王健[1] 盘朝奉[1] 陈燎[2] 李仲兴[2] 方恩[3] 林俊良 WANG Jian;PAN Chaofeng;CHEN Liao;LI Zhongxing;FANG En;LIN Junliang(Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China;School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China;Shanghai Automobile Group Co. , Ltd. , Shanghai 201804, China)

机构地区：[1]江苏大学汽车工程研究院,江苏镇江212013 [2]江苏大学汽车与交通工程学院,江苏镇江212013 [3]上海汽车集团股份有限公司,上海201804

出　　处：《重庆理工大学学报（自然科学）》2021年第9期66-72,82,共8页Journal of Chongqing University of Technology：Natural Science

基　　金：江苏省自然基金面上研究项目(BK20171300);上海汽车工业科技发展基金会项目(1533)。

摘　　要：对某电动汽车机电复合制动系统进行了制动力分配策略研究,依据电机特性试验以及液压控制单元增压试验,建立了复合制动系统模型;通过分析理想制动力分配规则以及ECE法规要求,利用模糊控制规则建立了在模糊区域进行前后轴制动力模糊分配的制动力分配策略,以制动能量回收效率为指标进行了有效性验证。结果表明:在ECE工况下,模糊规则分配策略比定比分配策略制动能量回收效率提高7.48%,且电机单独制动过程时间持续越长,模糊控制策略的优势越明显。This paper focuses on the braking force distribution strategy for electromechanical composite braking system of electric vehicles.Based on the motor characteristic test and the hydraulic control unit boosting test,the composite braking system model was established.Through the analysis of ideal braking force distribution rules and ECE regulatory requirements,the novel strategy was presented with fuzzy rule to improve the efficiency of energy recovery,in which distribution between front and rear axle braking force was operated in the fuzzy area.The braking energy recovery efficiency was used as the evaluation standard to verify the effectiveness.The results show that the distribution strategy based on fuzzy rule improves the braking energy recovery efficiency by 7.48%compared with the fixed proportion distribution strategy under ECE condition,and the longer the duration of motor braking alone,the more obvious the advantage of the fuzzy control strategy.

关 键 词：电动汽车 模糊规则 复合制动 制动力分配 

分 类 号：U469.72[机械工程—车辆工程]