Experiment of energy recovery efficiency and simulation research on EV’s regenerative braking system
Xiaobin Ning1, Ning Li2, Junping Jiang3
1Institute of Vehicle Engineering, Zhejiang University of Technology, China
2Zhijiang College of Zhejiang University of Technology, Zhejiang University of Technology, China
3Zhejiang Geely Automobile Research Institute CO LTD, China
The proposed technique ECPS aims to design and implement a constant pressure hydraulic regenerative braking system with flywheel that can operate the problems of short driving range and improve efficiency of braking energy recovery about electrical vehicle. We established ECPS after comparing several hydraulic regenerative braking schemes .Then we explored the correlation between displacement of pump/motor and efficiency of energy recovery by undertook experiment on using variable displacement of pump/motor. After that, we investigated braking and ECE-15 driving condition simulation based on AMESim, evaluated correlation between displacement of pump/motor and efficiency of energy recovery. The results indicate that the driving range of electrical vehicle has been increased by 25% and the service life of battery was prolonged because depth of discharge was decreased.