Patent ID: 6862878
Filing Date: 2005-03-08
Classification: B60H,F02D,F02M,Y02T

Abstract:
1. A method for operating an internal combustion engine of a motor vehicle, the vehicle including an exhaust-gas recirculation via which exhaust gas is conveyed from an exhaust branch to an intake manifold in an activated state, the vehicle further including at least one actuating element in the exhaust branch, the method comprising: determining, in at least one operating state of the engine, given an activated exhaust-gas recirculation, (a) a first intake-manifold pressure in a first position of the at least one actuating element in the exhaust branch and (b) a second intake-manifold pressure in a second position of the at least one actuating element in the exhaust branch; and monitoring a function of the at least one actuating element in the exhaust branch as a function of a difference between the first and the second intake-manifold pressures.