Method and apparatus for determining an injection moment during a start process in an internal combustion engine

US4541390A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Ulrich Steinbrenner · Kohlhof, DE
• Dieter Gunther · Steinheim an der Murr, DE

Key dates

• Filing date: Mar 19, 1984
• Grant date: Sep 17, 1985
• Expiry date: Mar 19, 2004

Classification

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

Abstract

Method and apparatus for determining an injection moment during a start process of the internal combustion engine, in which the time point of controlling of the injection valve is shifted for a period of time depending upon the number of revolutions of the crank shaft so that the electromagnetically actuated injection valve is controlled when the battery voltage reaches the maximum value.