Continuously variable stepped transmission

Planetary gear transmission systems or components – Nonplanetary variable speed or direction transmission... – Nonplanetary transmission is belt or chain gearing

Reexamination Certificate

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Details

C475S207000, C475S215000, C074S66500G, C074S6650GB, C074S66500G

Reexamination Certificate

active

11221134

ABSTRACT:
A continuously variable transmission for use with motor vehicles includes an ECU, an automated gear unit, a variator, an input gear set, an input fixed ratio element and an output fixed ratio element. The automated gear unit has multiple gear ratios and engages one of the gear ratios responsive to commands from the ECU. The variator varies a ratio of torque between its input and output shafts responsive to commands from the ECU. The variator output shaft connected to the gear unit input shaft. The input gear set is connected to the variator input shaft. The input fixed ratio element reduces torque from the input gear set to the variator, and is disposed between the input gear set and the variator input shaft. The output fixed ratio element increases the torque from the variator, and is disposed between the variator output shaft and the gear unit input shaft.

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