Energy management strategy of plug-in hybrid electric bus based on 6σ Design

doi:10.3969/j.issn.1674-8484.2022.02.017

Abstract

Abstract:

A design method of energy management strategy for plug-in hybrid electric bus (PHEB) was proposed based on the 6σ Design (Design For Six Sigma, DFSS) method to improve urban PHEB to adapted to random mass, different road slopes or/and different driving cycles. The off-line process used the 6σ-Design and the equivalent fuel consumption control strategy (ECMS), taken the random passenger load as noise factor, to obtain robust control parameters that can resist random load changes. And adaptive control was achieved by an online identification model with k Nearest Neighbor (KNN) method for driving conditions on complex roads. The results show that the 100-km fuel consumption of the proposed method is reduced by 2.64 L on average compared with the rule-based control strategy. Therefore, this method improves the adaptability of hybrid urban buses under different driving conditions.

Key words: plug-in hybrid electric bus (PHEB), bus-load, design for six sigma (DFSS), equivalent fuel consumption control strategy (ECMS)

CLC Number:

U469.7

LAI Huiping, HOU Liang, WANG Shaojie, LIU Qiangsheng. Energy management strategy of plug-in hybrid electric bus based on 6σ Design[J]. Journal of Automotive Safety and Energy, 2022, 13(2): 358-367.

Figures/Tables 14

References 22

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工况序号	β_cha	β_dis
1	3.34	4.64
2	1.79	2.12
3	3.89	3.61
4	3.02	3.62
5	2.58	2.15
6	3.40	4.81

工况序号	β_cha	β_dis
1	3.34	4.64
2	1.79	2.12
3	3.89	3.61
4	3.02	3.62
5	2.58	2.15
6	3.40	4.81

验证工况序号	100 km油耗 / L
验证工况序号	DID	RB
1	15.27	18.13
2	15.08	17.65
3	14.87	17.54
4	15.42	17.88

验证工况序号	100 km油耗 / L
验证工况序号	DID	RB
1	15.27	18.13
2	15.08	17.65
3	14.87	17.54
4	15.42	17.88