Patent ID: 6499370
Filing Date: 2002-12-31
Classification: B60K,B60W,B60Y,F16H,Y10T

Abstract:
A twin-clutch transmission for use in a motor vehicle having an engine and a driveline, comprising:an output shaft adapted for connection to the driveline and having an output gear fixed thereto; a first input shaft rotatably supporting a first speed gear meshed with said output gear; a first engine clutch operable for establishing a releasable drive connection between the engine and said first input shaft via a transfer shaft; a first shift clutch operable for releasably coupling said first speed gear to said first input shaft to establish a drive connection between said first input shaft and said output shaft; a second substantially tubular input shaft rotatably supporting a second speed gear meshed with said output gear, said second input shaft concentrically encompassing a portion of said transfer shaft; a second engine clutch operable for establishing a releasable drive connection between the engine and said second input shaft; a second shift clutch operable for releasably coupling said second speed gear to said second input shaft to establish a drive connection between said second input shaft and said output shaft; a first motor/generator connected to said first input shaft; a second motor/generator connected to said second input shaft; and a controller for controlling actuation of said first and second motor/generators.