纯电动汽车电液复合制动分层控制策略研究  

Research on Hierarchical Control Strategy of Electro-Hydraulic Composite Braking for Pure Electric Vehicle

作　　者：彭思颍 汪选要[1,2] PENG Siying;WANG Xuanyao(School of Mechanical Engineering,Anhui University of Science and Technology,Huainan 232001,China;Institute of Environment-friendly Materials and Occupational Health,Anhui University of Science and Technology,Wuhu 241000,China)

机构地区：[1]安徽理工大学机电工程学院,安徽淮南232001 [2]安徽理工大学环境友好材料与职业健康研究院,安徽芜湖241000

出　　处：《汽车实用技术》2024年第21期5-12,共8页Automobile Applied Technology

基　　金：安徽理工大学环境友好材料与职业健康研究院(芜湖)研发专项(ALW2021YF05)。

摘　　要：制动能量回收技术广泛应用于纯电动汽车,当前电动汽车制动能量回收率与制动稳定性不易协调,因此文章提出一种新的电液复合制动分层控制策略。基于Cruise软件在满足性能指标前提下,搭建了用于前轮驱动的纯电动汽车模型,并且对其整车动力性和经济性进行了验证;为了权衡制动稳定性和能量回收率,提出了一种分层控制架构,旨在实现电机和液压制动协调分配,通过AVL-Cruise、CarSim和MATLAB/Simulink软件联合仿真对控制策略进行了验证。结果表明,所提出的分层控制策略有效兼顾了制动稳定性和能量回收率。The braking energy recovery technology is widely used in pure electric vehicles.At present,the braking energy recovery rate and braking stability of electric vehicles are not coordinated.Therefore,a new electro-hydraulic composite braking hierarchical control strategy is proposed in this paper.Based on Cruise software,this paper builds a pure electric vehicle model for front wheel drive under the premise of meeting the performance indicators,and verifies its vehicle power and economy.Then,in order to balance the braking stability and energy recovery rate,a hierarchical control architecture is proposed to realize the coordinated distribution of motor and hydraulic braking.The control strategy is verified by AVL-Cruise,CarSim and MATLAB/Simulink software co-simulation.The results show that the proposed hierarchical control strategy effectively balances the braking stability and energy recovery rate.

关 键 词：制动能量回收率 制动稳定性 电液复合制动 分层控制 

分 类 号：U461.3[机械工程—车辆工程]