期刊
VEHICLE SYSTEM DYNAMICS
卷 58, 期 1, 页码 144-173出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00423114.2019.1567927
关键词
Electric vehicle; regenerative braking; energy recovery; driving range; fuzzy recognition
资金
- China Automobile Industry Innovation and Development Joint Fund [U1664257]
- National Natural Science Foundation of China [51775025, 51175018]
- China Key Research and Development Plan [2017YFB0102102, 2018YFB0104100]
Energy recovery is a key technology to improve energy efficiency and extend driving range of electric vehicle. It is still a challenging issue to maximise energy recovery. We present an energy recovery mode (mode A) which recovers braking energy under all situations that accelerator pedal (AP) is lifted, brake pedal (BP) is depressed, as well as AP and BP are released completely; and propose a control strategy of regenerative braking based on driver's intention identified by a fuzzy recognition method. Other two modes: (1) recovery braking energy only the BP is depressed (mode B), (2) no energy recovery, have been studied to compare with mode A. Simulations are carried out on different adhesion conditions. Recovered energy and driving range are also obtained under FTP75 driving cycle. Road test is implemented to validate simulation results. Results show that mode A can improve energy recovery by almost 15.8% compared with mode B, and extend driving range by almost 8.81% compared with mode B and 20.39% with the mode of no energy recovery; the control strategy of regenerative braking can balance energy recovery and braking stability. The proposed energy recovery mode provides a possibility to achieve a single-pedal design of the electric vehicle.
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