Method for operating an internal combustion engine

US7512478B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Michael Kessler · Rutesheim, DE
• Thomas Bossmeyer · Ditzingen, DE
• Michael Kolbe · Ortenberg, DE

Key dates

• Filing date: Aug 29, 2007
• Grant date: Mar 31, 2009
• Expiry date: Aug 29, 2027

Classification

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

Abstract

To enable operation of an internal combustion engine even without the signals of a phase sensor while nonetheless enabling an emergency driving function in the case of a disturbance of a crankshaft signal acquired by a crankshaft sensor, a cylinder pressure is acquired using a cylinder pressure sensor and it is checked whether the cylinder pressure reaches a prespecifiable threshold value. When the threshold value is reached or exceeded, an angular position associated with the threshold value is inferred. The angular position is then made available for an operation of the internal combustion engine.