Control of an automatic transmission by the evaluation of the speed of activation of the gear stage range
AssigneeZF Friedrichshafen AG
InventorsRupert Kramer, Wolfgang Gröner, Stefan Veittinger
Life of this patent
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AssigneeZF Friedrichshafen AG
InventorsRupert Kramer, Wolfgang Gröner, Stefan Veittinger
Estimating the term…
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.
A method for controlling an automatic transmission, the method comprising the steps of:
An apparatus for controlling an automatic transmission the apparatus comprising:
Dependencies are inferred from the claim text.