Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Reexamination Certificate
2011-07-05
2011-07-05
Ho, Ha D. (Department: 3655)
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
C477S097000, C477S130000, C701S062000
Reexamination Certificate
active
07972244
ABSTRACT:
Described is a method for controlling a transmission for motor vehicles, especially an automatic transmission or an automatic gearbox, where a gear ratio (“1”, “2”, “3”, “4”, “5”, “6”) is adjusted according to operating conditions by means of pre-determined shifting programs (“0”, “Eco”, “Normal”, “Sport”, “Mountain II”, “Warm-up”, “Tip”) and corresponding specific shifting values (HS45, RS43) and where in relation to a vehicle's actual operating condition at least one special function (“Curve Recognition KE”, “Rapid Drive Pedal Release FO”, “Spontaneous Delay Vehicle SVF”, “Drive Speed Control FGR”, “Drive Dynamic control ESP”) is activated, which prevents the change from an actual gear ratio to a target gear ratio requested by a shifting program within a pre-determined operating range of a vehicle. In a first version of the method, the operating range, wherein a gear ratio change of the transmission is prevented, is changed in relation to applied specific values that depend on the operating condition. In a second version of the method it is planned that the shifting characteristics are changed in relation to applied specific values that depend on the operating condition in such a manner that the operating points of the vehicle that are defined on the side of the shift characteristics, for which gear ratio changes must be performed, are adjusted to the actual operating condition of the vehicle.
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Gierling Armin
Jauch Friedemann
Kiefer Michael
Schuler Franz-Josef
Davis & Bujold P.L.L.C.
Ho Ha D.
ZF Friedrichshafen AG
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