Transmission and shift method
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United States of America Patent
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Sep 14, 2010
Grant Date -
Dec 15, 2005
app pub date -
Jun 9, 2005
filing date -
Jun 11, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Transmissions in which the mechanical gear shift arrangements are replaced by electro-hydraulic operated shift mechanisms that have to be able to be neutralised positively to ensure a proper operation. An arrangement and method are provided to determine the position of the shift rail so a shift can be made only if the conditions are right. To prevent engagement of two shift members at the same time and consequent damage in case of electronic failure, mechanical safety features such as detents are included.
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