Patent ID: 6814062
Filing Date: 2004-11-09
Classification: F02D

Abstract:
A method of operating an internal combustion engine of a motor vehicle, comprising the steps of injecting fuel into a combustion chamber in at least two operating types; flowing an air/fuel mixture through a tank ventilation valve and supplying the air/fuel mixture to the combustion chamber; generating an output signal by an integrator, which represents a specific desired fuel rate of the air/fuel mixture flowing through the tank ventilation valve, which is used to take into account respectively a current lambda on the engine; determining a desired fuel proportion of the air/fuel mixture flowing through the tank ventilation valve, which represents the desired fuel proportion that should be supplied through the tank ventilation valve; comparing the specific desired fuel rate to the desired fuel proportion; conveying a comparison result back to the integrator; thereby regulating the specific desired fuel rate to the desired fuel proportion of the air/fuel mixture flowing through the tank ventilation valve.