Patent ID: 6755089
Filing Date: 2004-06-29
Classification: F16H,Y10T

Abstract:
A torque transfer device comprisingseveral shafts of which at least one shaft is a fourth shaft, being an input shaft, and at least one shaft is a third shaft, being an output shaft; at least one transmission device which under predetermined conditions is at least in part in a transmission stretch between the at least one fourth shaft and a at least one third shaft and which can be shifted into different shift positions and with which several different transmission stages can be shifted between this at least one fourth shaft and this at least one third shaft; wherein torque can be transferred during a shift process between different shift positions of the transmission device between the at least one fourth shaft and the at least one third shaft; wherein the transmission device can be shifted into at least two different shift positions in which a transmission ratio between the at least one fourth shaft and the at least one third shaft is the same; at least a first and at least a second clutch device; wherein under predetermined conditions a transmission stage is shifted between a first shaft and the third shaft and at the same time a transmission stage is shifted between a second shaft and the third shaft whereby the transmission ratios of these transmission stages are substantially identical; wherein the first and the second clutch device are substantially closed under predetermined conditions when the transmission ratio shifted between the first and third shaft agrees with the transmission ratio shifted between the second and third shaft.