The experimentalanalysis of the slip in the rubber belt CVT

Scientific Conference on Automotive Vehicles and Combustion Engines 2016

Grzegozek, W.^1 ; Kot, A.^1

Institute of Automobiles and Internal Combustion Engines, Cracow University of Technology, Al. Jana Pawla II 37, Krakow

31-864, Poland^1

关键词: Angular speed;    Bench tests;    Constant torque;    Gear ratios;    Rubber belts;    Speed ratio;    Total power;    Transmitted torque;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/148/1/012006/pdf
DOI  :  10.1088/1757-899X/148/1/012006

来源: IOP

【 摘 要 】

This work deals with the analysis of the speed losses in CVT. The bench tests have been conducted on the scooter CVT equipped with the centrifugal regulation system. This solution is typical for this type of vehicles so the conducted experiments refer to real exploitation conditions. The slip has been defined on the base of the difference between speed ratios obtained from the angular speeds and the belt pitch radii. This approach corresponds with the Dittrich model. The non-linear dependence between the slip and the transmitted torque has been obtained for the constant gear ratio. Also non-linear dependence between the slip and the gear ratio has been received for constant torque. The amount of slip value indicates that this is significant part of the total power losses as it has been described by Bertini. However it clashes with the Chen researches, where the slip corresponds with the marginal part of the overall losses.