Method for knock regulation in an internal combustion engine

US6769402B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Steffen Franke · Schwieberdingen, DE
• Oskar Torno · Schwieberdingen, DE
• Axel Heinstein · Welzheim, DE
• Carsten Kluth · Stuttgart, DE
• Werner Haeming · Neudenau, DE
• Michael Baeuerle · Rutesheim, DE

Key dates

• Filing date: Jan 3, 2003
• Grant date: Aug 3, 2004
• Expiry date: Jan 18, 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 for knock control of an internal combustion engine, a knock detection being carried out on the cylinders of the internal combustion engine and a moment of ignition being retarded by a specifiable value as a function of detected knocking combustion in at least one of the cylinders, the system including at least two evaluation electronics and at least one cylinder being assigned to each of these evaluation electronics, and the knock sensor signals assigned to the cylinders being evaluated by the evaluation electronics assigned in each case, and the knock detection and the specification of the moment of ignition being effected by a control electronics, and the evaluation electronics being monitored for functionality. It is provided that, upon detection of a malfunction of at least one of the evaluation electronics, the at least one cylinder assigned to this evaluation electronics is linked to the control of at least one cylinder having intact evaluation electronics.