Performance comparation of the series type and the range-extender type of the hybrid light commercial vehicles

doi:10.3969/j.issn.1674-8484.2022.03.017

Abstract

Abstract:

The vehicle performances, fuel consumptions and in-use carbon dioxide emissions were simulated for a light commercial van with 150 km daily travel and 4.5 t gross mass to determine the optimal fuel consumption and carbon dioxide emission for the range-extender electric system and the series hybrid system. A rule-based strategy (RB) and a dynamic equivalent consumption minimization strategy (DECMS) were employed considering fair comparison and practicability before proposing an improved mixed strategy (M-DECMS). The results show that the range-extender electric vehicle (REEV) reduces the fuel consumption by 30.1% and reduces carbon dioxide emission by 16.65% compared with the series hybrid electric vehicle (SHEV) with two mass-production engines of 1.2 L and 1.5 L, under the China World Transient Vehicle Cycle (C-WTVC). Therefore, the range-extender electric system helps to reduce the fuel consumption and the in-use carbon dioxide emission comparing with the series hybrid system.

Key words: hybrid commercial vehicles, range-extender electric vehicles, energy management strategy, series configuration, dynamic equivalent consumption minimization strategy (DECMS), China world transient vehicle cycle (C-WTVC)

CLC Number:

U469.7

LI Minqing, FENG Jian, HAN Zhiyu. Performance comparation of the series type and the range-extender type of the hybrid light commercial vehicles[J]. Journal of Automotive Safety and Energy, 2022, 13(3): 550-559.

Figures/Tables 16

References 22

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		增程式	串联式
发动机	排量/L	1.2	1.5
	额定功率^①/ kW	39.5	50.0
	额定扭矩^①/ Nm	93.8	119.3
	最低油耗/ (g·kWh^-1)	238^②	212^③
启动发电一体机(ISG)	额定功率/ kW	40	48
	峰值功率/ kW	80	96
	峰值扭矩/ Nm	240	300
驱动电机 (TM)	额定功率/ kW	60	60
	峰值功率/ kW	120	120
	峰值扭矩/ Nm	320	320
电池组	类型	磷酸铁锂	三元锂
	容量/ Ah	60	6.2
	能量/ kWh	19.96	2.17
	标称电压/ V	332.8	350
	放电倍率/ C	2^④	54^⑤
	充电倍率/ C	2^④	33^⑤

		增程式	串联式
发动机	排量/L	1.2	1.5
	额定功率^①/ kW	39.5	50.0
	额定扭矩^①/ Nm	93.8	119.3
	最低油耗/ (g·kWh^-1)	238^②	212^③
启动发电一体机(ISG)	额定功率/ kW	40	48
	峰值功率/ kW	80	96
	峰值扭矩/ Nm	240	300
驱动电机 (TM)	额定功率/ kW	60	60
	峰值功率/ kW	120	120
	峰值扭矩/ Nm	320	320
电池组	类型	磷酸铁锂	三元锂
	容量/ Ah	60	6.2
	能量/ kWh	19.96	2.17
	标称电压/ V	332.8	350
	放电倍率/ C	2^④	54^⑤
	充电倍率/ C	2^④	33^⑤

工况	λ / [g·(kWh)^-1]		t_min / s
工况	REEV	SHEV	REEV	SHEV
低速	268	290	60	16
中速	259	290	60	24
高速	250	284	100	5
超高速	250	无解	100	无解

工况	λ / [g·(kWh)^-1]		t_min / s
工况	REEV	SHEV	REEV	SHEV
低速	268	290	60	16
中速	259	290	60	24
高速	250	284	100	5
超高速	250	无解	100	无解

工况	100 km油耗/ L		差异 / %
工况	RB	M-DECMS	差异 / %
C-WTVC 低速	10.69	10.58	-1.0
C-WTVC 中速	11.11	10.97	-1.3
C-WTVC	14.31	14.34	0.2
实际路谱	11.75	11.8	0.4