Infinitely-variable transmission with double mode power...

Details Infinitely-variable transmission with double mode power... Infinitely-variable transmission with double mode power...

2005-05-23

2009-11-10

Pang, Roger (Department: 3655)

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

C475S280000, C475S284000, C475S303000

Reexamination Certificate

active

07614973

ABSTRACT:
An infinitely-variable transmission with double mode power transmission for a motor vehicle, provided with a combustion engine, including a first power transmission path with a composite epicyclic gear train connecting the combustion engine to the vehicle wheels, a second power transmission path with a simple epicyclic gear train, two electric motors providing a continuous speed variator, a second simple epicyclic gear train for mode change, and an engagement/disengagement unit that can block or release a mode-changing body in the second epicyclic gear train, according to the operating mode. The engagement/disengagement body includes a sliding sleeve with a dog tooth, which can be displaced by a hydraulic actuator and with two sets of dog teeth fixed to a mode-changing body in the second epicyclic gear train.

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