Research on Rule-based Energy Management Strategy of Hybrid Mining Dump Truck

doi:10.16182/j.issn1004731x.joss.23-1218

Abstract

Abstract:

A distributed hybrid powertrain system structure and a rule-based energy management strategy are proposed to address the problems of insufficient power and poor fuel economy in conventional diesel-powered mining dump trucks. By analyzing the operational characteristics of mining dump trucks, a distributed hybrid powertrain system structure and vehicle driving conditions are established, relevant mode-switching rules are formulated. The results demonstrate that the proposed distributed hybrid powertrain system structure enhances the climbing capability of the vehicle by 27% when using the third gear for uphill driving. In addition, the adoption of the rule-based energy management strategy results in an 19% reduction in fuel consumption compared to the prototype vehicle. The rule-based energy management strategy improves fuel consumption and helps to increase energy efficiency and environmental friendliness.

Key words: hybrid mine car, based on rules, energy management strategy, powerfulness, fuel economy

CLC Number:

TP391.9

Liu Jiangong, Zhang Yuanhui, Wei Fei, Wang Yiying, Li Xiaoling, Liu Peiqing, Si Fengmiao. Research on Rule-based Energy Management Strategy of Hybrid Mining Dump Truck[J]. Journal of System Simulation, 2025, 37(2): 487-497.

Figures/Tables 16

Fig. 1

Table 1

Table 2

Table 3

Fig. 2

Fig. 3

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Table 4

Fig. 5

Table 5

Torque distribution of power components in each mode

工作模式	发动机输出扭矩	电机输出扭矩
发动机驱动	T_req	0
电机驱动	0	T_req
混合驱动	T_req–T_m	min( $T m_m a x$ , $T r e q - T e p$ )
行车充电	$T e_l$	$T r e q - T e_l$
制动回收	0	max( $T b r e q, T m r e, m a x$ )

Table 5

Fig. 6

Fig. 7

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Fig. 11

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参数名称	数值
轴数	6×4
驱动轮数	4
整备质量/kg	11 000
额定载重量/kg	22 000
外形尺寸(长×宽×高)/mm	7 600×2 450×2 500
车轮半径/m	0.483
迎风面积/m²	6.13
轴距/mm	3 600+1 600
风阻系数	0.65
主减速比	6.62/20.68
变速箱传动比	9.3/5.43/3.64/2.53/1.92/1.33/1

名称	参数
发动机	6缸，额定功率140 kW，额定转矩780 N·m，额定转速2 200 r/min
电机	最大扭矩710 N·m，额定功率76 kW，额定扭矩300 N·m
动力电池	容量175 Ah

变量名	含义	门限值
C_c	动力电池当前SoC值	—
C_l/%	允许动力电池放电最小电荷量	10
C_h/%	允许动力电池充电最大电荷量	85
T_req	车辆需求扭矩	—
T_{e_l}	发动机低负荷转矩曲线	查表
T_{e_h}	发动机高负荷转矩曲线	查表
u/(km/h)	允许制动能量回收的最小车速	3

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