怠速启停混合动力汽车复合电源需求功率控制

doi:10.13229/j.cnki.jdxbgxb.20231188

Abstract

Abstract:

In order to improve the comprehensive work efficiency and energy supply stability of the automotive composite power supply， a power demand control method of the idle start stop hybrid electric vehicle composite power supply was proposed. The control requirements of the composite power supply was analyzed through its composition， and the states of batteries and supercapacitors were clarified. According to the dynamic calculation of the relationship between the maximum speed of a hybrid vehicle and the supercapacitor， the input state compensation amount and the actual supercapacitor were used to obtain the maximum limited output power. By using the recursive method of multi-scale decomposition of discrete sequences， the scale space was gradually decomposed， and the decomposition and reconstruction coefficients were calculated to achieve the power demand control of hybrid electric vehicle composite power supply. The experimental results show that after using the proposed method for control， the capacitance curve remains at around 0.60 F， the current fluctuation amplitude is -50~50 A， and the power fluctuation amplitude is relatively gentle， with a voltage between 200~220 V. This indicates that the proposed method can stably control the power demand of the idle start stop hybrid electric vehicle composite power supply， reduce the energy consumption of the entire vehicle， and ensure maximum resource utilization.

Key words: idle start stop, hybrid electric vehicles, composite power supply, demand power control, supercapacitors

CLC Number:

TP202

Fang-yun LI,Rong XIA,Xiao-min XI. Power demand control of composite power supply for idle start stop hybrid electric vehicles[J].Journal of Jilin University(Engineering and Technology Edition), 2024, 54(12): 3443-3449.

Figures/Tables 5

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名称		数值
电机参数	型号	永磁49 kW
	最大电流/A	400
	最大功率/10⁴W	4.9
车身参数	轴距/m²	2.34
	质量/kg	1 225
	质心高/m²	0.5
	迎风面积/m²	2.13
	质心到前轴距离/m	1.404
	质心到后轴距离/m	0.936
	风阻系数	0.335
蓄电池	电池型号	NiMH45 A·h
	峰值功率/kW	3.3
	额定容量/（A·h）	45
	额定能量/（W·h）	598
发动机参数	发动机型号	Toyota8 A
	最大功率/10⁴W	6.3
	最大转矩/（N·m）	110
	排量/L	1.3
超级电容	电容型号	SU0100P-0027V-1CA
	峰值功率/W	207
	额定能量/J	360
	额定容量/F	100
其他参数	不同档位下变速器的传动比	3.928 2.333 1.456 1.000 0.851
其他参数	电子设备功率/W	700

Power demand control of composite power supply for idle start stop hybrid electric vehicles

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