Transmission control interface mechanism

Details Transmission control interface mechanism Transmission control interface mechanism

F - Mech Eng,Light,Heat,Weapons

16

H

74/136, 341/68

F16H 59/02 (2006.01) F16H 61/02 (2006.01) F16H 59/08 (2006.01)

Patent

CA 1196414

TRANSMISSION CONTROL INTERFACE MECHANISM Abstract of the Disclosure A vehicle includes a hydraulically operated multi-speed transmission controlled by a rotary pilot valve and pilot- operated shift valves. An electronic control unit generates electrical control signals for automatically controlling the transmission. A manually movable lever generates mechanical transmission control signals. An interface mechanism includes a sector gear which rotates the rotary valve in response to movement of the lever. A stepping motor rotates the sector gear via a torque-multiplying gear train in response to the electrical control signals. A rotary gear ratio encoder is rotatably coupled to the rotary pilot valve and generates signals indicative of the actual gear ratio of the transmission.

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