Patent ID: 7013215
Filing Date: 2006-03-14
Classification: F02D,F02M

Abstract:
1. A method for determining the charge of an activated carbon container of a tank venting system of a gasoline engine having an intake duct and an exhaust duct with a catalytic converter, comprising the steps of: determining the thermal influence of the tank venting system on the exhaust gas of the gasoline engine and determining the charge of the activated carbon container on the basis of the thermal influence wherein an exhaust gas temperature measured downstream of the catalytic converter with the tank venting system activated is compared with an exhaust temperature calculated by a model or measured at the same location with the tank venting system inactivated and divided by the exhaust gas temperatures measured with the tank venting system activated so as to obtain a temperature quotient and the charge of the carbon container is determined from the temperature quotient on the basis of a corresponding performance graph.