电工技术学报2017，Vol.32Issue(11)：189-197,9.
基于电动汽车半轴特性的电液复合制动协调控制方法
The Effect of Half-Shaft Properties on Regenerative and Hydraulic Blended Braking Control for Electric Vehicles
摘要
Abstract
In electric vehicles equipped with axle motors,properties of half-shafts affect the dynamic response of the transmission system to motor torque and it's difficult to control wheel slip ratio accurately by motor torque during the emergency braking process.In this paper,the powertrain model was built and its response to regenerative braking torque in the frequency domain was analyzed.Half-shaft torque was estimated through the Extended-Kalman-Filter and then two control strategies of blended braking in the emergency braking process including hydraulic braking torque dynamic control and half-shaft torque compensation control were proposed.Simulation and test-bench experiment results show that harmful effects of half-shaft properties to the electric drive are eliminated and blended braking control accuracy of the vehicle as well as the braking performance is significantly enhanced by the newly proposed control strategies.关键词
电力传动/半轴特性/回馈制动/电动汽车/协调控制Key words
Electric drive/half-shaft properties/regenerative braking/electric vehicle/cooperative control分类
信息技术与安全科学引用本文复制引用
张仲石,王丽芳,张俊智..基于电动汽车半轴特性的电液复合制动协调控制方法[J].电工技术学报,2017,32(11):189-197,9.基金项目
国家重点研发计划(2016YFB0101002)和国家科技支撑计划(2015BAG06B01)资助. （2016YFB0101002）
