Machine element or mechanism – Gearing – Interchangeably locked
Reexamination Certificate
2005-11-21
2008-07-08
Marmor, Charles A (Department: 3681)
Machine element or mechanism
Gearing
Interchangeably locked
Reexamination Certificate
active
07395730
ABSTRACT:
A control procedure for an automatic transmission, wherein, via a gear range shifter, a change of the gear range both between the forward travel gear range and the reverse travel gear range and between a fast gear mode and a creeper gear mode can be put into action. A control apparatus selects a transmission gear to be engaged, dependent on data, input by an operator with the aid of a gear range shifter for the manual choice of a driving gear area, whereby the gear range shifter possesses at least a D-shifting position for the selection of a forward travel gear range, an N-position for the selection of an idle running position of the automatic transmission and an R-position for the selection of a reverse travel gear range, and that the automatic transmission can be driven in a fast gear mode as well as in a creeper gear mode.
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Gröner Wolfgang
Kramer Rupert
Veittinger Stefan
Davis & Bujold & Daniels, P.L.L.C.
Marmor Charles A
Young Edwin A
ZF Friedrichshafen AG
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