Patent ID: 9556934
Date: 2017-01-31
CPC Classifications: B60Y,F16H,Y10T

Claim:
1. A method of controlling a dual clutch transmission including a first input shaft to be connected to a first clutch, a second input shaft to be connected to a second clutch, a set of odd-numbered gears arranged on the second input shaft, a set of even-numbered gears arranged on the first input shaft, and an output shaft, the method comprising: providing, as a start gear, one gear from the set of odd-numbered gears or the set of even-numbered gears; providing, as a support gear, another gear of the other of the set of odd-numbered gears or the set of even numbered gears; synchronously engaging the start gear to the second input shaft; connecting the second clutch to the second input shaft; starting transmission of power from a power source to the output shaft by synchronously engaging the start gear to the second input shaft and synchronously engaging the support gear to the first input shaft, respectively, and simultaneously connecting the first clutch partially to the first input shaft, and connecting the second clutch partially to the second input shaft, respectively, the support gear having a gear ratio smaller than that of the start gear by one speed or higher; disconnecting the first clutch from the first input shaft, when a difference between a detected rotational speed inputted to the first clutch and a detected rotational speed outputted from the first clutch falls below a predetermined threshold, while keeping the second clutch partially connected; then, releasing the synchronous engagement between the support gear and the first input shaft; synchronously engaging an acceleration gear to the first input shaft, the acceleration gear having a gear ratio larger than that of the start gear by one speed; and then fully connecting the second clutch to the second input shaft.