Method for computing an ignition angle of an internal combustion engine

US7051712B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Anton Kantschar · Lambach, DE
• Robert Sloboda · Yokohama, JP
• Rudi Eichhorn · Stuttgart, DE
• Andreas Meinken · Leonberg, DE
• Jochen Goebels · Ludwigsburg, DE
• Jan Boettger · Burgstädt, DE
• Goetz Stelzenmueller · Stuttgart, DE
• Kai Dierssen · Waldbronn, DE
• Frédéric Gabel · Kornwestheim, DE

Key dates

• Filing date: Nov 29, 2004
• Grant date: May 30, 2006
• Expiry date: Nov 29, 2024

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 for computing an ignition angle of an internal combustion engine as a function of the operating conditions of the engine and knock signals K, which indicate knocking combustion in the engine. If knock occurs, the ignition angle is retarded. If knock stops for a first period, the ignition angle is advanced again. Advance of the ignition angle is limited on the basis of the first period. If knock stops for a second period, which exceeds the first period, the ignition angle is further advanced.