基于中国工况的纯电动乘用车续驶里程评价方法研究

doi:10.19562/j.chinasae.qcgc.2021.05.009

Abstract

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

Zhichao Liu,Tianlei Zheng,Huiming Gong,Xiang Bao,Mengxue Ji. Research on Evaluation Method of Driving Range of Battery Electric Passenger Vehicle Based on China Automotive Test Cycle[J].Automotive Engineering, 2021, 43(5): 705-712.

Figures/Tables 14

References 19

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特征参数	CLTC?P		NEDC
特征参数	特征值	与实际数据差异	特征值	与实际数据差异
平均速度/（km·h^-1）	28.96	-3.08%	33.60	12.46%
运行平均速度/（km·h^-1）	37.18	2.28%	43.50	19.67%
平均加速度/（m·s^-2）	0.45	-6.25%	0.53	13.63%
平均减速度/（m·s^-2）	-0.49	-7.55%	-0.75	43.92%
加速比例/%	28.78	-1.24%	23.20	-16.00%
减速比例/%	26.44	0.15%	16.60	-33.81%
匀速比例/%	22.67	1.16%	37.50	48.53%
怠速比例/%	22.11	0.27%	22.60	2.48%

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

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