Patent ID: 8002666
Filing Date: 2011-08-23
Classification: B60K,B60L,B60W,F16D,F16H,Y02T,Y10T

Abstract:
1. A method of controlling a motor vehicle drivetrain having an internal combustion engine ( 2 ), an electric machine ( 3 ) and a transmission ( 4 ) which are coupled with one another by a summation gear system ( 5 , 15 ) with two input elements ( 6 , 7 ) and one output element ( 8 ) and by a bridging clutch ( 12 ) made as a friction clutch, in which a first input element is connected, in a rotationally fixed manner, to a crankshaft ( 9 ) of the combustion engine ( 2 ), a second input element is connected, in a rotationally fixed manner, to a rotor ( 10 ) of the electric machine ( 3 ) and the output element ( 8 ) is connected, in a rotationally fixed manner, to an input shaft ( 11 ) of the transmission ( 4 ), and in which the bridging clutch ( 12 ) is arranged between two elements of the summation gear system ( 5 , 15 ), and the method comprising the steps of: synchronizing with the electric machine (