Power synchronizer for a compound transmission

Details Power synchronizer for a compound transmission Power synchronizer for a compound transmission

1995-03-29

1996-10-01

Wright, Dirk

Machine element or mechanism

Gearing

Interchangeably locked

477 3, F16H 312

Patent

active

055602495

ABSTRACT:
An apparatus for controlling the rotational speed of an input shaft of a motor vehicle transmission such as a compound heavy duty transmission to achieve synchronous during a ratio change includes a variable speed motor having a motor shaft operably engaged with an input shaft of the transmission, preferably through an intermediate gear and a countershaft gear. The motor may be an electric, hydraulic, or pneumatic motor, having a speed variable between zero and a maximum so that the input shaft speed can be decreased during upshifts, or increased during downshifts. In an alternative embodiment, the motor is operably engaged with the input shaft and with the output shaft.

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SAE Technical Paper 932999, "The Eaton.RTM. Ceemat.TM. Ate Transmission" by J. Scott Steurer and Robert W. Langbo.

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