Method, computer program and control and/or regulating device for operating an internal combustion engine

US6983737B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Jochen Gross · Erlangen, DE
• Lutz Reuschenbach · Stuttgart, DE
• Georg Mallebrein · Stuttgart, DE
• Eberhard Klein · Plochingen, DE
• Michael Drung · Rochlitz, DE
• Lionel Martin · Gardanne, FR

Key dates

• Filing date: Jul 24, 2002
• Grant date: Jan 10, 2006
• Expiry date: Aug 3, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2200/0402
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An internal combustion engine (10) is operated in dependence upon operating characteristic variables such as rpm (nmot) of a crankshaft (18), temperature (Tmot) of the internal combustion engine (10) and/or temperature of the intake air (Taev). In the method, a temperature (Taevk) of the inducted air in the combustion chamber (16) is, at least in approximation, obtained from a detected or modeled temperature (Taev) of the inducted air in a region remote from the combustion chamber. To simplify the programming, it is suggested that the determination of the temperature (Taevk) of the inducted air in the combustion chamber (16) takes place under the assumption that the inducted air has a modeled or detected initial temperature (Taev) and that the intake air comes into thermal contact with a typical component (22) during a contact time (tcontact) which is typical for a type of the internal combustion engine (10) and for an operating state of the internal combustion engine (10) and the typical component has a modeled or detected temperature (Tev).