Process and system for operating a diesel engine

US6082325A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Steffen Digeser · Fellbach, DE
• Frank Duvinage · Kirchheim unter Teck, DE
• Hans Fausten · Bad Sobernheim, DE
• Walter Friess · Stuttgart, DE
• Anton Kerckhoff · Stuttgart, DE
• Thomas Liebscher · Fellbach, DE
• Stefan Pischinger · Aachen, DE
• Marco Stotz · Echterdingen, DE

Key dates

• Filing date: Nov 13, 1998
• Grant date: Jul 4, 2000
• Expiry date: Nov 13, 2018

Classification

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

Abstract

A system and a process for operating a diesel engine using an automatic engine control which, as a function of characteristic diagrams, automatically controls the operation of the diesel engine and permits an automatic rich/lean controlling of the diesel engine. The automatic engine control includes a computer which, as a function of predetermined change-over criteria, causes a change-over to the rich or the lean operation of the diesel engine. A sensor system communicates with the computer and monitors the parameters necessary for change-over criteria. A memory communicates with the computer, the memory storing separate characteristic diagrams for the operation of the diesel engine for the lean operation and for the rich operation.