Method for controlling a dual clutch transmission
AssigneeZF Friedrichshafen AG
InventorsArmin Gierling, Andreas Paul
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AssigneeZF Friedrichshafen AG
InventorsArmin Gierling, Andreas Paul
Estimating the term…
A method for control of a gear step change in a vehicle having a dual clutch transmission (2) actuatable by a prime mover (4), several gear steps in which a first dividing gear (6) and a second dividing gear (10) can be operatively coupled with the prime mover (4), respectively, by a first clutch (8) and a second clutch (12) and both dividing gears (6, 10) have a common output (14) wherein each dividing gear (6, 10) preferably has several ratio steps and at least two consecutive gear steps of the dual clutch transmission (2) are not associated with the same dividing gear (6, 10). It is proposed that upon a demand for a double downshift, a gear step change occurs within the same dividing gear (6) without the other dividing gear (10) transmitting during the gear step change a torque from the prime mover (4) to the output, and that the torque delivered by the prime mover (4) during the gear step change is essentially used for the acceleration of rotary masses on the side of the prime mover.
Method for control of a gear step change in a vehicle having a dual clutch transmission (2) actuatable by a prime mover (4), several gear steps in which a first dividing gear (6) and a second dividing gear (10) can be operatively coupled with said prime mover (4) respectively by a first clutch (8) and a second clutch (12) and both dividing gears (6, 10) have a common output (14), each dividing gear (6, 10) preferably having several ratio steps and at least two consecutive gear steps of said dual clutch transmission (2) are not associated with the same dividing gear (6, 10), characterized in that upon demand for a double downshift, a gear step change takes place within the same dividing gear (6) without the other dividing gear (10) transmitting during the gear step change a torque from said prime mover (4) to said output (14), and that the torque delivered by said prime mover (4) during the gear step change is essentially used for acceleration of the rotary masses on the side of said prime mover.
Dependencies are inferred from the claim text.