Method and device for controlling gear ratio change in a transmission contained in the drive train of a motor vehicle with gears that can be shifted under power
AssigneeLuK Lamellen und Kupplungsbau Beteiligungs KG
InventorsKlaus Kupper, Georg Schneider
Life of this patent
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Abstract
In a parallel manual transmission, an upshifting under power is executed based upon preset operating conditions, for example with a fully depressed accelerator pedal, without an electronically controlled, load-reducing ignition retard. When shifting to a higher gear, the engine output is used for increasing the speed of the engine and for the propulsion of the vehicle, based upon the operating condition of the drive train.
Claims4
A method for increasing a gear ratio of an automatically-shifted parallel manual transmission, gears of the transmission are changed without interruption in propulsive power, and which is contained in a drive train of a motor vehicle, the method comprising the step of:
- changing the division of engine output into one portion that is available for increasing the speed of the engine and another portion that is available for the propulsion of the vehicle with an increase in the gear ratio of the transmission under power based upon the operating conditions of the drive train.
A method for controlling a parallel manual transmission in a vehicle, the method comprising the step of engaging a starting gear when the transmission is decelerating, before the vehicle drops below a minimum speed and before a disengagement of an activated driving gear.
Dependencies are inferred from the claim text.