汽车工程 ›› 2021, Vol. 43 ›› Issue (5): 705-712.doi: 10.19562/j.chinasae.qcgc.2021.05.009

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基于中国工况的纯电动乘用车续驶里程评价方法研究

刘志超1(),郑天雷1,龚慧明2,保翔1,纪梦雪1   

  1. 1.中国汽车技术研究中心有限公司,天津 300300
    2.能源基金会,北京 100004
  • 收稿日期:2020-11-03 修回日期:2020-12-15 出版日期:2021-05-25 发布日期:2021-05-18
  • 通讯作者: 刘志超 E-mail:lzctalent@163.com
  • 基金资助:
    中汽中心重点项目(19200121)

Research on Evaluation Method of Driving Range of Battery Electric Passenger Vehicle Based on China Automotive Test Cycle

Zhichao Liu1(),Tianlei Zheng1,Huiming Gong2,Xiang Bao1,Mengxue Ji1   

  1. 1.China Automotive Technology and Research Center Co. ,Ltd. ,Tianjin 300300
    2.The Energy Foundation,Beijing 100004
  • Received:2020-11-03 Revised:2020-12-15 Online:2021-05-25 Published:2021-05-18
  • Contact: Zhichao Liu E-mail:lzctalent@163.com

摘要:

纯电动乘用车续驶里程测试的国家标准主要存在试验循环不适用、试验效率低和计算方法不完善三方面的问题。本文中结合中国工况成果及相关试验分析提出评价方法的优化方案,并开展了评价方法优化前后的对比试验。结果表明:试验循环切换为中国工况后,续驶里程平均增加2.20%;试验流程简化后,净试验时长大幅度减少,且续驶里程测试精度无明显差异,平均相差仅为0.60%;计算方法优化后,续驶里程不再受试验循环结构的影响,不同速度区间的续驶里程也可同步细化得到,各速度区间续驶里程与循环续驶里程差异显著。

关键词: 纯电动汽车, 中国工况, 续驶里程, 评价方法

Abstract:

There are three main problems in the national standard for battery electric passenger vehicle driving range test, including the inapplicability of test cycles, low test efficiency, and flawed calculation methods. This paper proposes an optimization method of the evaluation method based on the China automotive test cycle and related experimental analysis, and carries out comparative tests before and after the optimization. The results show that after adopting the China automotive test cycle, the average driving range increases by 2.20%. The simplification of the test procedure results in a significant reduction in the net test duration, while the driving range test precision has not changed significantly, only with an average difference of 0.60%. After the optimization of the calculation method, the driving range is no longer affected by the test cycle structure, while the driving range of different phases can be refined at the same time, which is significantly different from the driving range of the whole cycle.

Key words: battery electric vehicle, China automotive test cycle, driving range, evaluation method