电动汽车制动能量回收影响因素研究  

Influences of Pedal Characteristics on Braking Energy Recovery of Electric Vehicles

作　　者：周苏[1,2] 孙延 黄静 

机构地区：[1]同济大学汽车学院,上海201804 [2]同济大学中德学院,上海200092

出　　处：《机电一体化》2019年第5期10-18,共9页Mechatronics

摘　　要：以车速、充电功率及制动强度为约束条件,基于MATLAB/Simulink电动汽车整车和再生制动系统动态模型,研究了城市循环工况下制动力分配方式、踏板行程分布和控制策略对制动能量回收的影响,提出了在电动汽车制动能量回收的经济模式下,踏板行程与踏板控制策略设计方法。仿真结果显示,串联式制动能量回收策略节能贡献率最高,所提出的踏板行程设计方法与踏板控制策略能在保证车辆动力性响应前提下回收制动能量,从而减少城市工况下能量消耗。Based on the speed,charging power and braking strength,the dynamic models of the electric vehicle and the regenerative braking system were developed under the MATLAB/Simulink environment.The effects of braking power distribution methods,pedal stroke and control strategies on braking energy recovery of urban-driven electric vehicles were studied,and then a design method of pedal stroke and pedal control strategies in an economic mode with enhanced braking energy recovery for electric vehicles is proposed.Results indicate that the energy saving contribution rate of series braking energy recovery strategy under urban conditions is the highest and that pedal control strategies affect energy recovery greatly.The proposed electric vehicle pedal stroke and control strategies design method are proved to decrease net power consumption with partial braking energy recovered under the premise of ensuring vehicle dynamic response.

关 键 词：再生制动 踏板行程 制动能量回收策略 踏板控制策略 节能贡献率 

分 类 号：U46[机械工程—车辆工程]