Patent ID: 6852054
Filing Date: 2005-02-08
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S,Y10T

Abstract:
1. A method for operating a motor vehicle that is driven at least intermittently by an internal combustion engine (VM) and at least intermittently by at least one of two electrical machines (E 1 , E 2 ), which has a transmission (G) with two power paths (LP 1 , LP 2 ) that are controllable independently of one another, each power path (LP 1 , LP 2 ) being coupled via a respective epicyclic gear (P 1 , P 2 ) to one of the electrical machines (LP 1 , LP 2 ) and to an input shaft (KW) of the transmission (G) and being couplable to an output shaft (AW) of the transmission (G) via shiftable gears ( 1 , 2 , 3 , 4 , 5 , 6 , R), power being transmissible simultaneously over power paths (LP 1 , LP 2 ), wherein at least to reduce circulating mechanical power flow between the two power paths (LP 1 , LP 2 ), a gear combination ( 1 , 2 , 3 , 4 , 5 , 6 , R) or the engine rpm is varied, or only one electrical machine (E 1 , E 2 ) is used as a generator.