Analysis of the distribution characteristics of overall dimensions and specific power of three axle trucks based on full sample data

doi:10.3969/j.issn.1674-8484.2024.06.007

Abstract

Abstract:

The distribution characteristics of specific power (the ratio of the power to the truck total mass) were investigated for trucks in China to improve traffic safety, to reduce the incidence of major traffic accidents, and to provide the evidence for the revision of truck design vehicle parameters in highway related design standards or specifications. Using statistics, the distribution of the outline size and specific power of the three-axle trucks in mainland China on the 'Truck House' website was analyzed; And the recommended values of the minimum value of the outline size and specific power of the three-axle trucks were determined. The results show that the body width of the dump truck and the truck is relatively close, which is distributed between 2.5~2.55 m, but the body length and wheelbase of the dump truck are about 2 m lower than that of the truck, and the height is about 0.5 m lower than that of the truck. The correlation between specific power and maximum torque is strong, and the correlation with displacement is general. The statistical results suggest that the outline size of the truck design vehicle should be corrected to 12.00 m × 2.55 m × 4.00 m with the wheelbase of 8 m, the front suspension of 1.6 m, and the rear suspension of 4 m; and the truck specific power should be 8.6 kW·t^-1.

Key words: traffic, vehicle design, three-axle trucks, profile dimensions, specific power

CLC Number:

U469.2

HOU Shanshan, TAO Chao, DU Jiang, HU Zumin, XU Jin. Analysis of the distribution characteristics of overall dimensions and specific power of three axle trucks based on full sample data[J]. Journal of Automotive Safety and Energy, 2024, 15(6): 856-865.

Figures/Tables 15

References 13

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车型百分位	比功率 / (kW·t^-1)
	自卸车			载货车
	6×2	6×4	全部	6×2	6×4	全部
15^th	6.48	9.88	6.91	7.2	8.84	7.2
50^th	6.61	10.88	10.28	8.33	10	8.6
85^th	7.94	12.96	12.64	10.28	11.2	10.28
平均值	6.98	11.26	10.18	8.53	10.24	8.86

车型百分位	比功率 / (kW·t^-1)
	自卸车			载货车
	6×2	6×4	全部	6×2	6×4	全部
15^th	6.48	9.88	6.91	7.2	8.84	7.2
50^th	6.61	10.88	10.28	8.33	10	8.6
85^th	7.94	12.96	12.64	10.28	11.2	10.28
平均值	6.98	11.26	10.18	8.53	10.24	8.86

驱动形式	特征参数 / m
	6×2车辆							6×4车辆
	Z₁	Z₂	L_vel	W_vel	H_vel	Q	X	Z₁	Z₂	L_vel	W_vel	H_vel	Q	X
平均值	6.730	5.830	11.03	2.540	3.74	1.470	2.79	6.070	5.430	10.11	2.51	3.32	1.43	2.79
标准差	0.970	0.910	1.370	0.038	0.35	0.056	0.51	0.700	0.630	1.33	0.02	0.29	0.07	0.57
85^th	7.500	6.500	12.00	2.550	4.00	1.530	3.27	6.595	5.960	11.99	2.55	3.66	1.53	3.42
95^th	7.550	6.600	12.00	2.550	4.00	1.540	3.34	7.400	6.675	12.00	2.55	3.77	1.54	3.48
最大值	8.375	7.675	12.00	2.550	4.00	1.580	3.44	7.775	7.075	12.00	2.55	4.00	1.54	3.50

驱动形式	特征参数 / m
	6×2车辆							6×4车辆
	Z₁	Z₂	L_vel	W_vel	H_vel	Q	X	Z₁	Z₂	L_vel	W_vel	H_vel	Q	X
平均值	6.730	5.830	11.03	2.540	3.74	1.470	2.79	6.070	5.430	10.11	2.51	3.32	1.43	2.79
标准差	0.970	0.910	1.370	0.038	0.35	0.056	0.51	0.700	0.630	1.33	0.02	0.29	0.07	0.57
85^th	7.500	6.500	12.00	2.550	4.00	1.530	3.27	6.595	5.960	11.99	2.55	3.66	1.53	3.42
95^th	7.550	6.600	12.00	2.550	4.00	1.540	3.34	7.400	6.675	12.00	2.55	3.77	1.54	3.48
最大值	8.375	7.675	12.00	2.550	4.00	1.580	3.44	7.775	7.075	12.00	2.55	4.00	1.54	3.50

特性参数	比功率 / (kW·t^-1)
最小值	5.21
平均值	8.86
标准差	1.65
50^th	8.60
85^th	10.28
最大值	16.60