重型半挂牵引车行驶工况研究及其动力传动系统优化

doi:10.19562/j.chinasae.qcgc.2022.11.011

Abstract

Abstract:

In this paper， the driving data of heavy semi-trailer tractor in Shanxi region are collected on the spot by utilizing the big data platform of vehicle driving information. Principal component analysis， cluster analysis and Markov method are used to construct the driving cycle of heavy semi-trailer tractor in Shanxi region. The fuel consumptions of C-WTVC， CHTC-TT， and Shanxi driving cycles are simulated respectively， and the simulation results verify the accuracy of the driving cycles constructed. The powertrain system of the vehicle is optimized and matched based on Shanxi driving cycles. As a result， the probability of the vehicle engine working in economy zones increases， and the fuel consumption per 100 km is 0.94 L less than that of the original vehicle. The fuel consumption data of the real vehicle tested confirm that the driving cycle curve can better represent the driving characteristics of heavy semi-trailer tractors in Shanxi region. The simulation method of vehicle powertrain matching based on Shanxi driving cycles proposed is helpful to the design of highly-efficient powertrain system of heavy semi-trailer tractors suitable for Shanxi region.

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

Guogui You,Jianwei Lu,Junshou Su,Mingyong Luan,Shuai Huang. Research on Driving Cycles of Heavy Semi-trailer Tractor and Optimization of Its Powertrain System[J].Automotive Engineering, 2022, 44(11): 1735-1745.

Figures/Tables 23

References 21

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特征参数	定义
v_da	运行平均速度/（km·h^-1 ）
a_am	最大加速度/（m·s^-2 ）
a_dm	最大减速度/（m·s^-2）
v_a	平均速度/（km·h^-1）
s	行驶距离/km
t	行驶时间/s
P_c	匀速比例/%
P_a	加速比例/%
P_d	减速比例/%
P_i	怠速比例/%

运动学片段	行驶时间/s	怠速比例	匀速比例	加速比例	减速比例	平均速度/ （km·h^-1 ）	运行平均速度/ （km·h^-1 ）	最大加速度/ （m·s^-2）	最小加速度/（m·s^-2）	行驶距离/ km
1	358.5	0.281 3	0.285 5	0.175 5	0.342 6	27.243 7	37.888 2	2.238 8	-3.183 3	5.8
2	175.5	0	0.034 1	0.366 4	0.340 9	38.730 0	38.730 0	1.800 0	-2.916 6	4.0
3	1 864.5	0.016 8	0.093 3	0.602 1	0.246 3	38.780 0	38.779 1	2.177 7	-4.888 8	43.9
4	581.5	0.164 0	0.213 1	0.339 3	0.376 2	33.580 4	40.165 5	2.211 1	-3.383 3	11.6
5	1 417.5	0.046 1	0.245 7	0.360 7	0.400 2	50.120 0	52.131 6	2.327 7	-2.500 0	41.6
6	609.5	0	0.087 6	0.333 3	0.452 0	67.455 0	67.399 8	1.116 6	-3.566 6	23.8
∶	502.5	0	0.126 1	0.268 1	0.355 5	59.292 2	59.233 3	0.738 8	-2.827 7	17.7
∶	632.5	0	0.076 6	0.299 1	0.416 7	81.248 1	81.184 0	0.972 2	-1.505 5	30.4
∶	369.0	0	0.110 8	0.294 5	0.350 0	62.717 0	62.632 2	0.911 1	-1.650 0	13.6
∶	65.5	0	0.112 8	0.270 6	0.195 4	68.482 6	88.482 6	1.061 1	-0.705 6	2.6
4 000	739.0	0	0.298 1	0.202 8	0.196 0	72.187 3	72.187 3	1.150 0	-2.211 1	24.0
4 010	189.5	0.044 6	0.044 6	0.246 7	0.054 0	29.463 9	30.759 0	1.205 5	-2.738 9	3.5

主成分	特征值	贡献率	累计贡献率
1	4.639	46.393	46.393
2	2.560	25.600	71.994
3	1.233	12.329	84.323
4	0.797	7.966	92.288
5	0.439	4.393	96.682
6	0.216	2.164	98.846
7	0.059	0.586	99.432
8	0.050	0.505	99.937
9	0.006	0.063	100
10	1.646	0	100

特征参数	主成分1	主成分2	主成分3
行驶时间	0.642	0.702	0.137
怠速比例	0.158	-0.609	0.675
匀速比例	0.718	-0.449	0.311
加速比例	0.010	0.845	-0.265
减速比例	-0.124	0.020	0.887
平均速度	-0.928	0.206	0.213
运行平均速度	-0.910	0.113	0.270
最大加速度	0.916	0.013	-0.008
最小加速度	-0.762	-0.368	-0.029
行驶距离	0.364	0.768	0.340

特征参数	工况1	工况2	工况3
怠速比例	0.032	0.021	0.032
匀速比例	0.160	0.175	0.169
加速比例	0.288	0.326	0.481
减速比例	0.359	0.241	0.323
平均速度	62.752	72.879	44.450
运行平均速度	64.034	73.584	45.455
最大加速度	1.237	0.975	2.252
最小加速度	-2.698	-1.707	-3.694
行驶距离	21.500	7.200	42.800

Research on Driving Cycles of Heavy Semi-trailer Tractor and Optimization of Its Powertrain System

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Figures/Tables 23

References 21

Related Articles 15

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方法	平均加速度分布/（m·s^-2）	-5~-1	-1~1	1~5
马尔科夫	K-S值	0.312	0.497	0.369
聚类法	K-S值	0.495	0.799	0.377

整车参数	整备质量/kg	8 870
整车参数	满载总质量/kg	49 000
发动机	型号	WP10.5H430E62
	排量/L	10.5
	额定功率/kW	316
	最大转矩/（N·m）	2 000
变速器	型号1	C12JSDQXL220TA
	前进挡速比	12.26/9.56/7.36/5.8/4.52/3.53/2.71/2.12/1.63/1.29/1/0.78
	型号2	C12JSDQXL220T
	前进挡速比	15.7/12.25/9.42/7.43/5.79/4.52/3.47/2.71/2.08/1.64/1.28/1
后桥	减速比	4.11
车轮	轮胎型号	12R22.5-18PR

项目		配置1	配置2	配置3	配置4	配置5	配置6
配置	发动机	WP10.5H430E62	WP10.5H430E62	WP10.5H430E62	WP10.5H430E62	WP10.5H430E62	WP10.5H430E62
	变速器	C12JSDQXL220TA	C12JSDQXL220TA	C12JSDQXL220T	C12JSDQXL220T	C12JSDQXL220T	C12JSDQXL220T
	后桥速比	3.7	4.11	2.846	3.083	3.364	3.7
	轮胎	12R22.5	12R22.5	12R22.5	12R22.5	12R22.5	12R22.5
山西工况/（L· 100 km^-1）	综合值	35.01	35.84	34.90	35.22	36.52	37.31

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