Patent ID: 6983737
Filing Date: 2006-01-10
Classification: F02D

Abstract:
1. A method for operating an internal combustion engine in dependence upon operating characteristic variables including at least one of: rpm (nmot) of a crankshaft; temperature (Tmot) of the internal combustion engine; and, temperature of the intake air (Taev); the method comprising the steps of: obtaining a temperature (Taevk) of the inducted air in a region near the combustion chamber or in the combustion chamber itself at least approximately from a detected or modeled temperature (Taev) of the inducted air in a region remote from the combustion chamber; determining the temperature (Taevk) of the inducted air in the region near the combustion chamber or in the combustion chamber itself under the assumption that the inducted air has a modeled or detected initial temperature (Taevk); bringing the intake air into thermal contact with a typical component during a contact time (tcontact) which is typical for a type of the internal combustion engine and for an operating state of the internal combustion engine with the typical component being a modeled or detected temperature (Tev); and, utilizing at least an inlet valve, a cylinder head or a coolant as said typical component.