Real road tests of the emission from extended-range electric vehicles with different energy management strategies

doi:10.3969/j.issn.1674-8484.2021.02.010

Abstract

Abstract:

Several real driving tests were done on different extended-range electric vehicles to investigate the influence of two kines of energy management strategies at two driving conditions on the emission from extended-range electric vehicles. The instantaneous high emission set (IHES) was obtained by clustering the emission data. The influence of internal parameters such as engine speed and throttle position on instantaneous high emission of carbon monoxide (CO) and particle number (PN) was analyzed. The experimental results show that energy management strategies can significantly affect the distribution regularity of instantaneous high CO emissions. Compared with the power following strategy, the multi-point control strategy produces instantaneous high CO emissions when the vehicle speed is high. Different driving behaviors have no significant influence on the distribution regularity of instantaneous high CO and PN emissions in extended-range electric vehicles. However, the engine coolant temperature is relatively low under congestion road conditions, resulting in more PN instantaneous high emissions during restart.

Key words: extented-range electric vehicle, pollutant emission, real driving test, energy management strategy, driving condition, instantaneous high emission set (IHES)

CLC Number:

U467.1+4

WANG Yu’an, LUO Jiaxin, WANG Yachao, WANG Xin, GE Yunshan, JIANG Zhen. Real road tests of the emission from extended-range electric vehicles with different energy management strategies[J]. Journal of Automotive Safety and Energy, 2021, 12(2): 219-225.

Figures/Tables 12

References 12

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	A车	B车
发动机排量/ L	1.5	1.2
供油方式	PFI	GDI
整备质量/ t	1.80	2.10
发动机额定功率/ kW	45	80
汽油机颗粒捕集器	否	是

	A车	B车
发动机排量/ L	1.5	1.2
供油方式	PFI	GDI
整备质量/ t	1.80	2.10
发动机额定功率/ kW	45	80
汽油机颗粒捕集器	否	是

试验名称	[va]_p-95	v		T	S
试验名称	m^-2·s^-3	km·h^-1		s	km
A_正常	11.6	47.8	5 611		74.5
A_激进	17.0	46.5	5 774		74.7
A_拥堵	11.8	35.8	7 522		74.7
B_正常	13.0	47.0	5 734		75.0
B_激进	17.8	47.6	5 691		75.2
B_拥堵	11.1	36.8	7 345		74.9

试验名称	[va]_p-95	v		T	S
试验名称	m^-2·s^-3	km·h^-1		s	km
A_正常	11.6	47.8	5 611		74.5
A_激进	17.0	46.5	5 774		74.7
A_拥堵	11.8	35.8	7 522		74.7
B_正常	13.0	47.0	5 734		75.0
B_激进	17.8	47.6	5 691		75.2
B_拥堵	11.1	36.8	7 345		74.9

能量管理	IHES排序/ %	正常驾驶		激进驾驶		拥堵驾驶
能量管理	IHES排序/ %	e(CO) / (mg·s^-1)	τ / %	e(CO) / (mg·s^-1)	τ / %	e(CO) / (mg·s^-1)	τ / %
A 车	20	68.8	0.6	44.3	0.8	58.2	0.7
	50	24.9	2.6	13.1	4.6	17.0	3.8
	80	7.1	8.8	4.5	15.2	5.9	12.8
B 车	20	15.0	1.9	17.8	1.2	20.4	1.2
	50	4.8	13.2	4.9	8.4	7.5	6.2
	80	2.4	36.2	2.0	28.3	2.0	21.7