表面テクスチャによるCVTプーリ/ベルト間摩擦の異方性制御に関する研究

抄録

Belt-type continuously variable transmission (CVT) is a type of transmission for automobile to enable high-efficiency driving. CVT transmits torque by frictional force, hence high friction is required in circumferential direction of the pully. However, to reduce friction loss, low friction is required in the radial direction of the pully. Therefore, it is important to generate friction anisotropy that satisfies both the frictional characteristics. Surface texturing is one of the effective ways to generate friction anisotropy. In this study, 4 types of groove texture were applied to actual CVT pulley, and their frictional properties were examined. In this presentation, we will report the results of the friction test and explain the effect of surface texture patterns on the generation of friction anisotropy.