轮毂驱动电动汽车再生制动能量分配策略研究  

Research on the regenerative braking energy distribution strategy of hub driven electric vehicles

作　　者：许洋 周奎[1] 杨亚会[1] 杨倩 付勇智[1] XU Yang;ZHOU Kui;YANG Yahui;YANG Qian;FU Yongzhi(Hubei University of Automotive Technology,Shiyan 442002,China)

机构地区：[1]湖北汽车工业学院,湖北十堰442002

出　　处：《重庆理工大学学报（自然科学）》2023年第2期68-76,共9页Journal of Chongqing University of Technology：Natural Science

基　　金：湖北省科技重大专项(2020AAA001);湖北省重点研发计划项目(2020BAB099)。

摘　　要：以四轮毂驱动电动汽车制动反馈控制策略为研究内容,以制动稳定时电机制动参与最大程限为目标,考虑防抱死制动系统与电机制动的协调控制对再生制动的影响。依据理想制动力分配I曲线,确定前后轴制动力分配限值控制线,设计出依照电动机功率分配两桥制动力矩,确保单轴上反馈制动系统介入优先性和参与最大化的优化分配策略。基于Matlab/Simulink搭建能量反馈控制模型,在UDDS工况中,对再生制动的可行性进行分析和评价。仿真数据显示,单次运行工况中,采用优化控制策略回收能量0.126 kW·h,比传统定比例策略高7.7%。相比普通定比例控制和无再生制动功能的控制方案,采用提出的控制策略使得UDDS循环工况下的能量消耗分别减少1.99%和7.30%,同时,节能效果为7.29%,车辆进行再生制动过程中冲击度峰值仅为1.72 m·s^(-3),制动舒适性良好。With the maximum range of motor braking participation during braking stability as the target,this paper uses a braking feedback control strategy of four-wheel hub driven electric vehicles as the research content,and considers the influence of coordinated control of the anti-lock braking system and motor braking on the regenerative braking.Based on the ideal braking force distribution I curve,the front and rear axle braking force distribution limit control line is determined,and a braking torque of two bridges is designed according to the motor power,ensuring an optimal distribution strategy of intervention priority and maximum participation of the feedback braking system on a single axle.An energy feedback control model based on Matlab/Simulink is constructed to analyse and evaluate the feasibility of regenerative braking under UDDS operating conditions.The simulation data show that,under a single operating condition,0.126 kW·h of energy is recovered by using the optimised control strategy,which is 7.7%higher than that in the conventional fixed-proportional strategy.Compared with the ordinary fixed-proportional control and the control scheme without regenerative braking,the proposed control strategy reduces energy consumption by 1.99%and 7.30%respectively under the UDDS cycle conditions,and the energy saving effect is 7.29%.The peak value of impact during vehicle regenerative braking is only 1.72 m·s^(-3),resulting in good braking comfort.

关 键 词：轮毂驱动 电动汽车 再生制动 控制策略 能量回收 

分 类 号：U463.5[机械工程—车辆工程]