Method for operating an internal combustion engine

US7010423B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Fridolin Piwonka · Asperg, DE
• Benedikt Feldmann · Lambach, DE
• Thomas Lenzing · Memmingen, DE
• Lutz Mueller · Altadena, US
• Wolfgang Grimm · Pittsburgh, US
• Markus Klausner · Chemnitz, DE
• Reinhold Pfotzer · Piossasco, IT
• Wolfgang Becker · Eppstein, DE

Key dates

• Filing date: Dec 12, 2002
• Grant date: Mar 7, 2006
• Expiry date: Jan 21, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method and a control unit for operating an internal combustion engine of a motor vehicle are provided, in particular for controlling/regulating the internal combustion engine as a function of an air-mass sensor signal from a first air-mass sensor. A first auxiliary signal, which is obtained arithmetically from an additional sensory system or from models of the internal combustion engine, allows a plausibility control or the substitution of the air-mass sensor signal in the case of signal interference of the air-mass sensor signal, and thereby ensures that the internal combustion engine is able to continue working in the optimal operating point.