Patent ID: 8083639
Filing Date: 2011-12-27
Classification: B60K,B60L,B60W,Y02T,Y10T

Abstract:
1. A method for wear-free braking in a vehicle that comprises an electrodynamic drive system ( 1 ), an electric machine ( 2 ) and a planetary gearset ( 3 ), with a crankshaft ( 4 ) of an internal combustion engine of the vehicle being connected with a first element ( 5 ) of the planetary gearset ( 3 ), the electric machine ( 2 ) being connected with a second element ( 6 ) of the planetary gearset ( 3 ) and a transmission input shaft ( 7 ) being connected with a third element ( 8 ) of the planetary gear system ( 3 ), the method comprising the steps of: providing a friction clutch ( when the combustion engine is operating, operating the combustion engine to produce a braking torque in a drive train when a transmission input speed (n_GE) exceeds a predetermined threshold value by