重型半挂牵引车燃油经济性提升研究

doi:10.19562/j.chinasae.qcgc.2022.02.003

Abstract

Abstract:

This paper aims to study the improvement of the fuel economy of a heavy semi-trailer tractor. Firstly， an optimization is conducted on rearview mirror with a wind tunnel test result of a 0.012 reduction in drag factor. Then the parameters of transmission system are optimized and the control strategy of electronically controlled silicone oil fan is improved， resulting in a reduction in the power consumption of engine accessories， the results of Simulink/ Crusie joint-simulation and chassis dynamometer test show a 1.7% and 2% reduction in fuel consumption of C-WTVC cycle respectively. Finally， a real vehicle road test is carried out with a result indicating that the comprehensive fuel consumption of the optimized vehicle lowers by 1.14 L/100 km， corresponding to a reduction of 3%.

Key words: heavy semi-trailer tractor, fuel economy, optimization

Guogui You,Junshou Su,Tairong Chen. Research on Fuel Economy Enhancement of a Heavy Semi-trailer Tractor[J].Automotive Engineering, 2022, 44(2): 171-178.

Figures/Tables 15

References 20

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整车参数	整备质量	8 870 kg
整车参数	满载总质量	49 000 kg
发动机	型号	WP10.5H430E62
	排量	10.5 L
	额定功率	316 kW
	最大转矩	2 000 N·m（1 000-1 400 r/min）
变速器	型号	12JSD200T-B
变速器	前进挡速比	15.53/12.08/9.39/7.33/5.73/4.46/3.48/2.71/2.1/1.64/1.28/1
后桥	减速比	3.083
车轮	轮胎型号	12R22.5-18PR

挡位	优化前	优化后
1挡传动比	15.535	16.11
2挡传动比	12.08	12.25
3挡传动比	9.39	9.42
4挡传动比	7.33	7.43
5挡传动比	5.73	5.79
6挡传动比	4.46	4.52
7挡传动比	3.48	3.47
8挡传动比	2.71	2.71
9挡传动比	2.1	2.08
10挡传动比	1.64	1.64
11挡传动比	1.28	1.278
12挡传动比	1	0.899
后桥速比	3.083	2.844

项目	车辆性能	优化传动比前	优化传动比后
动力性	起步连续换挡加速0-80 km/h时间/s	74.41	74.67
	直接挡50-80 km/h加速时间/s	46.22	50.84
	最高车速/（km·h^-1）	119.65	124.53
	最大爬坡度/%	30.05	32.93
经济性	等速50 km/h燃油消耗量/（L·100 km^-1）	26.81	26.28
	等速60 km/h燃油消耗量/（L·100 km^-1）	28.59	28.96
	等速70 km/h燃油消耗量/（L·100 km^-1）	31.68	31.47
	等速80 km/h燃油消耗量/（L·100 km^-1）	33.74	33.17
	等速90 km/h燃油消耗量/（L·100 km^-1）	35.95	35.40
	等速100 km/h燃油消耗量/（L·100 km^-1）	41.13	39.90
	C-WTVC综合燃油消耗量/（L·100 km^-1）	38.77	38.10

项目	车辆性能	基础车型	优化车型
动力性	起步连续换挡加速0-80 km/h时间/s	80	83.8
	直接挡50-80 km/h加速时间/s	40.5	37.6
	最高车速/（km·h^-1）	117.6	122.4
经济性	等速50 km/h燃油消耗量/（L·100 km^-1）	25.80	26.22
	等速60 km/h燃油消耗量/（L·100 km^-1）	28.72	27.43
	等速70 km/h燃油消耗量/（L·100 km^-1）	29.27	28.49
	等速80 km/h燃油消耗量/（L·100 km^-1）	34.54	33.21
	60-80 km/h加速燃油消耗量/（L·100 km^-1）	85.25	81.80
	交通部道路试验综合燃油耗量/（L·100 km^-1）	37.95	36.81

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Research on Fuel Economy Enhancement of a Heavy Semi-trailer Tractor

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