Method for controlling knocking in multicylinder internal combustion engines

US6062199A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Robert Entenmann · Memmingen, DE
• Stefan Unland · Schwieberdingen, DE
• Werner Haeming · Neudenau, DE
• Iwan Surjadi · Leinfelden, DE
• Steffen Franke · Schwieberdingen, DE

Key dates

• Filing date: Feb 25, 1999
• Grant date: May 16, 2000
• Expiry date: Feb 25, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02P5/1522
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Method of knock control in multicylinder internal combustion engines, with one knock sensor being provided for a group of cylinders, and with a control unit determining and outputting the control quantities for the ignition of the individual cylinders on a selective basis for the cylinders. At least one cylinder, preferably the cylinder(s) sensed best by the knock sensor, is/are selected as the lead cylinder. A knocking event in a lead cylinder causes a retard in the firing for all cylinders of the group, while a knocking event in one of the other cylinders causes a retard in only this one cylinder.