基于多约束优化的电动汽车再生制动控制策略  

Regenerative braking control of electric vehicles based on multi-constrained optimization

作　　者：郑伟胜 周艳红[2] 杨兆万 杨辉华[1,3] 

机构地区：[1]桂林电子科技大学电子工程与自动化学院,广西桂林541004 [2]华中科技大学生命科学与技术学院,武汉430074 [3]北京邮电大学自动化学院,北京100876

出　　处：《桂林理工大学学报》2016年第4期830-837,共8页Journal of Guilin University of Technology

基　　金：国家自然科学基金项目(61263013)

摘　　要：针对前后轮独立驱动纯电动汽车再生制动过程的控制问题,提出了一种基于多约束优化的再生制动控制策略。通过对汽车动力学的分析,并考虑能量回收所涉及的电机、电池组特性的影响,在保证制动过程安全可靠的前提下,结合再生功率流路径上各部件的运行效率和边界约束,以制动系统总效率最大化为目标优化前后电机的再生制动转矩分配,达到最大化回收制动能量的目的,并与原车的简单逻辑控制策略进行仿真对比,结果表明了该控制策略的有效性。Aiming at regenerative braking process for the front and rear wheels independent drive type of electric vehicles,a control strategy of regenerative braking based on multi-constraint optimization is presented in this paper.In this strategy,not only the vehicle dynamics,the characteristics of the motor and the battery pack involved in the energy recovery are taken into account,but also the efficiency and constraints of the components on the regenerated power flow path,which is under the premise of guaranteeing the safety and reliability of the braking process.In order to maximize the energy recovery from the regenerative braking,optimal distribution of the regenerative braking torque between the front and rear motor is presented based on objective of maximizing the total efficiency of the regenerative braking system.Simulation comparison with the simple logic control strategy is carried out,and the results show the effectiveness of the control strategy.

关 键 词：汽车动力学 多约束优化 制动力分配 效率最大化 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]