Friction Loss of Steel Rings in Metal V-belt CVT

被引：1

作者：

Fu B. ^{[1
]}

Zhou Y. ^{[1
]}

Hu X. ^{[1
]}

Li H. ^{[1
]}

Liu Y. ^{[1
]}

Zhang F. ^{[1
]}

机构：

[1] State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha

来源：

Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2018年 / 54卷 / 14期

关键词：

Continuously variable transmission; Friction loss; Improved metal v-belt; Pitch circle distance; Steel ring; Transmission efficiency;

D O I：

10.3901/JME.2018.14.169

中图分类号：

学科分类号：

摘要：

view of the problem of low transmission efficiency of existing continuously variable transmission(CVT), taking a domestic CVT as the research object, the friction loss calculation model of steel ring is established based on the force model and the kinematic model of steel rings, and the distribution characteristics and mechanism of the steel ring friction loss are analyzed. The analysis results show that the friction loss of steel ring increases with the increase of input torque and rotational speed, and the sensitivity of friction loss to input rotational speed is higher in range of MED to OD than that of MED to LOW, the friction loss of steel ring is approximately V-shaped in the whole range of speed ratio, the friction loss of each layer steel ring is reduced from inner to outer, the friction loss in innermost steel ring is the main component of total steel ring friction loss, and the pitch circle distance is the root cause of the loss in innermost steel ring. The reliability of the calculation model is verified by the test. Finally, according to the analysis results, an improved structure of metal belt is proposed, which can greatly reduce the friction loss of steel ring by setting the pitch circle distance to zero. This provides a new design idea for improving CVT transmission efficiency from optimization of metal belt structure. © 2018 Journal of Mechanical Engineering.

引用

页码：169 / 178

页数：9

共 24 条

[1]

Dong J., Dong Z., Crawford C., Et al., Review of continuously variable transmission powertrain system for hybrid electric vehicles, Proceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition, November 11-17, 9, pp. 209-219, (2011)

[2]

Srivastava N., Haque I., A review on belt and chain continuously variable transmissions (CVT): Dynamics and control, Mechanism & Machine Theory, 44, 1, pp. 19-41, (2009)

[3]

Ando T., Yagasaki T., Ichijo S., Improvement of transmission efficiency in cvt shift mechanism using metal pushing V-Belt, SAE Int. J. Engines, 3, 8, pp. 1391-1397, (2015)

[4]

Luo Y., Sun D., Qin D., Et al., Fuel optimal control of CVT equipped vehicles with consideration of CVT efficiency, Journal of Mechanical Engineering, 46, 4, pp. 80-86, (2010)

[5]

Hao Y., Sun D., Lin Y., Et al., Overall optimization control strategy of continuously variable transmission system, Journal of Mechanical Engineering, 49, 12, pp. 84-91, (2013)

[6]

Zhang F., Zhou Y., Xue D., Et al., Experiment research on slip characters of metal v-belt of continuous variable transmission, Journal of Mechanical Engineering, 51, 2, pp. 90-95, (2015)

[7]

Han L.I.N.G., An Y.I.N.G., Sohel A., Et al., Clamping force control strategy of continuously variable transmission based on extremum seeking control of sliding mode, Journal of Mechanical Engineering, 53, 4, pp. 105-113, (2017)

[8]

Khaniki H.B., Zohoor H., Sohrabpour S., Performance analysis and geometry optimization of metal belt-based continuously variable transmission systems using multi-objective particle swarm optimization, Journal of the Brazilian Society of Mechanical Sciences & Engineering, 39, 3, pp. 1-15, (2017)

[9]

Fu B., Zhou Y., Gao S., Et al., Research on pulley deflection loss of metal belt continuously variable transmission, Journal of Mechanical Engineering, 28, 12, pp. 1420-1426, (2017)

[10]

Akehurst S., Vaughan N.D., Parker D.A., Et al., Modeling of loss mechanisms in a pushing metal V-belt continuously variable transmission, Part 3: belt slip losses, Proc. Instn Mech. Engrs. Part D: Journal of Automobile Engineering, 218, 11, pp. 1295-1306, (2004)

← 1 2 3 →