Method of learning a clutch kiss point for a clutch of a dual clutch transmission
AssigneeGM Global Technology Operations LLC
InventorsXuefeng Tim Tao, Daniel Deras, Jayson S. Schwalm, Jeryl McIver
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AssigneeGM Global Technology Operations LLC
InventorsXuefeng Tim Tao, Daniel Deras, Jayson S. Schwalm, Jeryl McIver
Estimating the term…
A method of learning a kiss point of a first clutch of a dual clutch transmission includes controlling a rotational speed of the input shaft to be within a pre-determined range. When both the first clutch and the second clutch are determined to be disengaged from the input shaft, and the rotational speed of the input shaft is within the pre-determined range, then the first clutch is moved from a disengaged position into an engaged position. An increase in a rotational speed of a first transmission shaft, which is coupled to the first clutch, is detected. When the increase in the rotational speed of the first transmission shaft is detected, a position of the first clutch is identified. The identified position of the first clutch is saved in a memory of a transmission control module as a learned first clutch kiss point.
A method of operating a transmission, the method comprising:
A method of learning a kiss point for both a first clutch and a second clutch of a dual clutch transmission, the method comprising:
Dependencies are inferred from the claim text.