Zf Friedrichshafen Ag

Robert Sayman

Mario Steinborn

Rupert Kramer

James H DeVore

Ronald Muetzel

Rudolf Kalthoff

Thomas Balamucki

A method and apparatus for cycling a neutral switch of an automated mechanical transmission includes software which, either independently or by operator command through a shift actuator having side-to-side motion capability and sensors, controls a select piston and cylinder assembly to provide shift rail motion along a transverse axis of the transmission which simulates operator commanded motion of a shift rail of a conventional (manual) transmission as the operator checks for neutral. Such activity may release a malfunctioning neutral switch thereby providing a proper neutral indication to associated transmission and engine components to, for example, permit starting of the engine.

Apparatus and method for jogging transmission neutral switch

A method of and apparatus for operating an automated mechanical transmission (AMT) achieves switching between and selecting one of a plurality of automated mechanical transmission shift scheduling modes. Such switching or selection occurs and is controlled by the vehicle operator undertaking a sequence of non-routine operating steps or inputs which are interpreted by a microprocessor or controller as a request for a change of the shift scheduling mode.

Method and apparatus for changing shift scheduling modes of automated mechanical transmission

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Meckenbeuren, Germany

Robert Sayman