Evaluation of regenerative braking based on single-pedal control for electric vehicles  

作　　者：Wei LIU Hongzhong QI Xintian LIU Yansong WANG 

机构地区：[1]School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China [2]Automotive Engineering Institute,Guangzhou Automobile Group Co.Ltd.,Guangzhou 511434,China

出　　处：《Frontiers of Mechanical Engineering》2020年第1期166-179,共14页机械工程前沿（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant No.51675324).

摘　　要：More than 25%of vehicle kinetic energy can be recycled under urban driving cycles.A single-pedal control strategy for regenerative braking is proposed to further enhance energy efficiency.Acceleration and deceleration are controlled by a single pedal,which alleviates driving intensity and prompts energy recovery.Regenerative braking is theoretically analyzed based on the construction of the single-pedal system,vehicle braking dynamics,and energy conservation law.The single-pedal control strategy is developed by considering daily driving conditions,and a single-pedal simulation model is established.Typical driving cycles are simulated to verify the effectiveness of the single-pedal control strategy.A dynamometer test is conducted to confirm the validity of the simulation model.Results show that using the single-pedal control strategy for electric vehicles can effectively improve the energy recovery rate and extend the driving range under the premise of ensuring safety while braking.The study lays a technical foundation for the optimization of regenerative braking systems and development of single-pedal control systems,which are conducive to the promotion and popularization of electric vehicles.

关 键 词：electric vehicle single-pedal CONTROL regenerative BRAKING CO-SIMULATION DYNAMOMETER test 

分 类 号：P14[天文地球—天体物理]