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Automotive Engineering ›› 2022, Vol. 44 ›› Issue (2): 161-170.doi: 10.19562/j.chinasae.qcgc.2022.02.002

Special Issue: 新能源汽车技术-电驱动&能量管理2022年

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Research on Energy Consumption and Driving Range Evaluation Method of Plug-in Hybrid Electric Passenger Car

Zhichao Liu1,Tianlei Zheng1(),Shaohui Liu1,Huiming Gong2   

  1. 1.China Automotive Technology and Research Center Co. ,Ltd. ,Tianjin  300300
    2.The Energy Foundation. ,Beijing  100004
  • Received:2021-02-22 Revised:2021-04-19 Online:2022-02-25 Published:2022-02-24
  • Contact: Tianlei Zheng E-mail:zhengtianlei@catarc.ac.cn

Abstract:

In this paper, the existing problems of old national standard on “the test methods for energy consumption of light-duty hybrid electric vehicles” (GB/T 19753—2013) are revealed in detail through theoretical analysis and test verification, which meanwhile serves as an explanation of the reasonability of the revisions made in new national standard (GB/T 19753—2021). The main arguments are as follow: Though WLTC test cycle can temporally be adopted in next stage, the application of China light-duty vehicle test cycle should finally be all-round pushed forward. The PHEV test procedures in new standard can all-round cover all stages of the practical use of vehicles. The adoption of utility factor-based weighting calculation method can more scientifically evaluate the comprehensive energy consumption of PHEV. The calculation of PHEV driving range based on cycle energy demand is more rational. The test results of two PHEVs show that after the revision of standard, the fuel consumption in charge-sustaining (CS) stage significantly increase, with the comprehensive fuel consumption much higher than 2 L/100km, and the comprehensive electricity consumption slightly lowers, with the driving range greatly reduce. With consideration of energy consumption conversion, the converted fuel consumption significantly higher than comprehensive fuel consumption, probably even increasing to the level of fuel consumption in CS stage.

Key words: plug-in hybrid electric vehicle, energy consumption, driving range, evaluation method, test cycle, utility factor