Development of a New Generation Belt CVT with High Torque Capacity for Front Wheel Drive Vehicles

Authors

Dipl.-Ing. T. Urasawa, Dipl.-Ing. K. Hayasaki, Nissan Motor Co., Ltd., Kanagawa, Japan; Dipl.-Ing. K. Sugano, Jatco Ltd, Kanagawa, Japan

Year

2004

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 566

Summary

Nissan and Jatco have developed and introduced a new belt CVT with high torque capacity for E segment and SUV front-wheel driven vehicles. The developed CVT has a maximum torque capacity of 350Nm, which is the highest capacity in the world for a belt CVT. At same time, it is very compact in size. This CVT also provides a new driving feeling. It can provide quick acceleration with excellent feeling from any vehicle speed. Unnatural acceleration feeling, which had been pointed out with the previous generation CVT, was totally eliminated. Regarding fuel economy, remarkable improvement has been accomplished compared to the former CVT-generation. Thanks to a newly designed hardware, well-sophisticated control algorithm and an engine calibration well-suited to the new CVT, it achieves best in class fuel economy and acceleration performance. This paper summarizes the main specifications, structural construction and characteristics of the new CVT.

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