Mixture adaptation method

US6883510B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Jens Wagner · Untergruppenbach, DE
• Peter Kaltenbrunn · Bietigheim-Bissingen, DE

Key dates

• Filing date: Aug 23, 2001
• Grant date: Apr 26, 2005
• Expiry date: Aug 23, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2200/0606
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for compensating for mismatches of the precontrol of a fuel metering for an internal combustion engine. A regulation being superimposed on the precontrol. At least one correction quantity being formed, from the behavior of the regulation at high temperatures of the internal combustion engine, which influences the fuel metering even at low temperatures of the internal combustion engine in a supplementing manner to the superimposed regulation for compensating for the mismatches. At low temperatures a further correction quantity is formed which acts upon the fuel metering, whose effect at low temperatures of the internal combustion engine is greater than at high temperatures.