Optimal design of energy management system for hybrid sightseeing-bus with fuel-cells and lithium-batteries

doi:10.3969/j.issn.1674-8484.2024.02.008

Abstract

Abstract:

A power-following energy management strategies were proposed for fuel-cell (FC) sightseeing-bus with the power matching design and the simulation verification to reduce the endurance anxiety of traditional electric-vehicles. The output characteristics of pure lithium-battery (LI) sightseeing-bus, the pure fuel-cell sightseeing-bus (FC) and the hybrid (LI-FC) sightseeing-bus were compared. The results show that the climbing degree of the hybrid sightseeing bus is comparable to that of the pure electric vehicle; while the cruising range is increased by 15% compared with that of the pure lithium battery sightseeing-bus; and the equivalent hydrogen consumption is reduced by 53% compared with that of the pure lithium battery sightseeing-bus. The state of charge (SOC) of the power battery can keep stable working between 0.5 and 0.9, and the fuel cell will also switch stably under rated working conditions and idle working conditions. Therefore, the fuel cell and lithium cell hybrid sightseeing-bus (LI-FC) has the best endurance, better use economy and the best use stability among the three sightseeing-buses, and both the fuel cell and the power battery work stably under the expected working conditions, so having good competitiveness.

Key words: hybrid power vehicles, pure lithium battery, fuel cell (FC), sightseeing bus, energy management, mileage

CLC Number:

U469.7

GUAN Quan, TU Zhengkai. Optimal design of energy management system for hybrid sightseeing-bus with fuel-cells and lithium-batteries[J]. Journal of Automotive Safety and Energy, 2024, 15(2): 199-207.

Figures/Tables 18

References 25

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整备质量，m₀	0.800 t
LI车满载质量，m₁	1.130 t
LIFC车满载质量，m₂	1.093 t
FC车满载质量，m₃	1.086 t
迎风面积，A	2.678 m²
风阻因数，C_D	0.60
滚动半径，r	0.288 m
滚动因数，f	0.018
减速器传动比，i₀	6
最大爬坡度	20%
0~20 km/h加速时间	20 s
1 km 最高车速	30 km/h
30 min最高车速	25 km/h
5%坡度最高车速	20 km/h

整备质量，m₀	0.800 t
LI车满载质量，m₁	1.130 t
LIFC车满载质量，m₂	1.093 t
FC车满载质量，m₃	1.086 t
迎风面积，A	2.678 m²
风阻因数，C_D	0.60
滚动半径，r	0.288 m
滚动因数，f	0.018
减速器传动比，i₀	6
最大爬坡度	20%
0~20 km/h加速时间	20 s
1 km 最高车速	30 km/h
30 min最高车速	25 km/h
5%坡度最高车速	20 km/h

观光车电池	P / kW		n / (r·min^-1)		T / Nm
观光车电池	额定	峰值	额定	峰值	额定	峰值
LI	4.53	6.88	1 105	1 658	39.16	118.86
LIFC	4.39	6.65	1 105	1 658	37.93	114.98
FC	4.36	6.61	1 105	1 658	37.69	114.24

观光车电池	P / kW		n / (r·min^-1)		T / Nm
观光车电池	额定	峰值	额定	峰值	额定	峰值
LI	4.53	6.88	1 105	1 658	39.16	118.86
LIFC	4.39	6.65	1 105	1 658	37.93	114.98
FC	4.36	6.61	1 105	1 658	37.69	114.24

电机型号	YP132B3/5-48V6.3-1500
电压DC	48 V
额定功率	6.3 kW
额定电流	144 A
额定转速	1 500 r/min
额定扭矩	40 Nm