Input torque control for a variable displacement hydraulic transmission

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United States of America Patent

PATENT NO 4462210
SERIAL NO

06288988

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A torque control for a drive system having a hydraulic transmission connectable to a prime mover (30) and having a pair of hydraulically-connected displacement devices V and F, with one device having variable displacement, a torque sensor (35) generates a torque signal representative of prime mover output torque in either driving or braking mode, torque demand generators (47,47') generate a torque demand signal selectively in either driving or braking modes, a governor valve (63) compares the torque signals and generates a control signal and a control servo 17, responsive to the control signal, controls the displacement of the variable displacement device V to eliminate any difference in torque signals.

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Patent Owner(s)

Patent OwnerAddress
SAUER INCA CORP OF DE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bolinger, Jimmy W Ames, IA 2 13
Pollman, Frederic W Ames, IA 40 513
Reynolds, David W Huxley, IA 9 141

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