Patent ID: 9534645
Date: 2017-01-03
CPC Classifications: F16D

Claim:
1. A touch point correction method for a Dual Clutch Transmission (DCT), comprising: a) determining, by a controller, respective temperatures of a first pressure plate, a second pressure plate, and a center plate and calculating an average temperature of the determined temperatures; b) determining, by the controller, a rotational inertia using a map in which relationships between average temperatures and rotational inertia values are previously stored based on the average temperature calculated at the a); c) determining, by the controller, a touch point correction amount using a preset map for changes in the rotational inertia based on the rotational inertia determined at the b) and engine speed of a vehicle; d) correcting, by the controller, a touch point of a relevant clutch using the touch point correction amount determined at the c); and e) controlling, by the controller, the relevant clutch using the touch point corrected at the d).