Principle and characteristics of original hydraulic traction drive CVT
来源期刊：中南大学学报(英文版)2014年第4期
论文作者：SHEN Chu-jing(沈楚敬) YUAN Shi-hua(苑士华) HUJi-bin(胡纪滨) WU Wei(吴维) 魏超 CHEN Xing(陈星)
文章页码：1654 - 1659
Key words：continuously variable transmission; spin; creep; efficiency; elasto-hydrodynamic
Abstract: A new CVT (continuously variable transmission) design which is a traction drive variator has been introduced. Analytical predictions and experimental results of the steady state which demonstrate higher efficiencies and power capacities of the new design are presented. The traction and power loss are then predicted by using models including evaluation of creep and spin in the contact patch. Analytical predictions of the transmission reach reasonable agreement with the experimental data, and the transmission efficiency of the system increases as the input torque increases while the input speed is certain. The research results can be further used in hydraulic traction drive CVT design and optimization.
SHEN Chu-jing(沈楚敬), YUAN Shi-hua(苑士华), HUJi-bin(胡纪滨), WU Wei(吴维), WEI Chao(魏超), CHEN Xing(陈星)
(National Key Laboratory of Vehicular Transmission (Beijing Institute of Technology), Beijing 100081, China)
Abstract:A new CVT (continuously variable transmission) design which is a traction drive variator has been introduced. Analytical predictions and experimental results of the steady state which demonstrate higher efficiencies and power capacities of the new design are presented. The traction and power loss are then predicted by using models including evaluation of creep and spin in the contact patch. Analytical predictions of the transmission reach reasonable agreement with the experimental data, and the transmission efficiency of the system increases as the input torque increases while the input speed is certain. The research results can be further used in hydraulic traction drive CVT design and optimization.
Key words:continuously variable transmission; spin; creep; efficiency; elasto-hydrodynamic
