Journal of Jilin University(Engineering and Technology Edition) ›› 2022, Vol. 52 ›› Issue (9): 2119-2129.doi: 10.13229/j.cnki.jdxbgxb20220016

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Transmission ratio and energy management strategy of fuel cell vehicle based on AVL⁃Cruise

Hai-lin KUI1(),Ze-zhao WANG2,Jia-zhen ZHANG3,Yang LIU2   

  1. 1.College of Biological and Agricultural Engineering，Jilin University，Changchun 130022，China
    2.College of Transportation，Jilin University，Changchun 130022，China
    3.College of Automotive Engineering，Jilin University，Changchun 130022，China
  • Received:2022-01-04 Online:2022-09-01 Published:2022-09-13

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Abstract:

In order to improve the power performance and economy of fuel cell vehicles， a fuel cell vehicle based on AVL-CRUISE was modeled， and the energy management strategy of fuzzy control based on Simulink was established. Then， the fixed gear was optimized into a two-speed AMT gearbox based on Isight/Cruise co-simulation. Simulation results show that the established fuzzy control energy management strategy is effective. Compared with the rule-based energy management strategy， the economy is improved by 16.4% and 8.5% respectively under NEDC and WLTP conditions. Compared with the fuel cell vehicle without optimized transmission ratio based on fuzzy control， the fuel cell vehicle with optimized transmission ratio based on fuzzy control has improved economy by 1.1% and 2.8% respectively under NEDC and WLTP conditions.

Key words: vehicle engineering, fuel cell, energy management, parameter matching, transmission ratio optimization, fuzzy control

CLC Number: 

  • U461.8

Fig.1

Structure of fuel cell vehicle hybrid drive mode"

Table 1

Different power distribution"

指标补偿型混合型全功率型
动力性差中等良好
成本低中等高
适用性良好中等差

Table 2

Basic parameters of fuel cell vehicles"

结构参数数值
整备质量/kg1850
满载质量/kg2300
迎风面积/m22.2
空气阻力系数0.3
滚动阻力系数0.0137
轮胎滚动半径/m0.324
汽车旋转质量换算系数1.05
主减速器传动比6.0

Table 3

Performance design indicators of fuel cell vehicle"

性能指标数值
纯电动续驶里程/km30
满载车速≥30 km/h时的最大爬坡度/%20
0~100 km/h加速时间/s≤15
0~50 km/h加速时间/s≤6
最高车速/（km·h-1）≥150

Table 4

Parameter matching of drive motorpeak torque and peak power"

性能指标数值电机需求参数数值

最大爬坡度/%

（满载车速=30 km/h）

18峰值扭矩/（N·m）259
20284
22309
起步加速度/（m·s-2）1.5峰值扭矩/（N·m）185
2.0242
2.5300
加速时间（0~100 km/h）/s14峰值功率/kW80
13.585
1390

Table 5

Power demand of battery under FCSdynamic response"

燃料电池功率变化率/（kW·s-1）电池需求功率/kW燃料电池峰值功率响应时间/s
10808
16545
20304

Table 6

Main parameters of component of power system"

动力系统部件参数数值
质子交换膜燃料电池峰值功率/kW80
额定功率/kW50

三元聚合物锂离子

电池

最大放电电流/A66.7
输出电压/V408~501
最大输出功率/kW80
容量/（kW·h）8
额定电压/V450
永磁同步电机额定功率/kW50
峰值功率/kW80
峰值转矩/（N·m）300
最高转速/103 （r·min-1）10
基速/（r·min-1）2550

Fig.2

Forward simulation flow chart"

Fig.3

Simulation model of fuel cell vehicle"

Fig.4

Fuzzy controller calculation flow"

Table 7

Percentage of decay rate of fuel cell"

工作条件衰减率/%
启/停机33
低功率4.7
变载56.5
高功率5.8

Table 8

Fuzzy logic controller rule table"

需求功率SOCBMS
BMSBMSBMS
需求功率变化率VBMMMVSVSSVSVSVS
BMMBVSSSVSVSVS
MMBBVSSLSVSVSS
SMBVBSLSLSVSVSS

Fig.5

Flow chart of NSGA-Ⅱ algorithm"

Fig.6

Vehicle following diagram of WLTP cycle"

Table 9

Simulation comparison results"

参数功率跟随模糊控制
最高车速/（km·h-1）165165
0~100 km/h的加速时间/s13.914.8
0~50 km/h的加速时间/s5.45.7
NEDC循环工况的氢耗/［kg·（100 km）-1］1.0450.893
WLTP循环工况的氢耗/［kg·（100 km）-1］1.1861.057

Fig.7

SOC change curves under two cycle conditions"

Fig.8

Output power curves of fuel cells under two cycle conditions"

Fig.9

Gearbox transmission ratio optimization process"

Table 10

Simulation results after optimization"

方法主减速比1挡传动比2挡传动比NEDC循环工况氢耗/［kg·（100 km）-1］WLTP循环工况氢耗/［kg·（100 km）-1］
功率跟随6.01.01.01.0451.186
模糊控制6.01.01.00.8931.057
传动比优化的功率跟随4.02.01.11.0221.174
传动比优化的模糊控制4.02.41.10.8831.027
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