Control means and method for operating an internal combustion engine

US9874170B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Stefan Horst · Neu-Isenburg, DE
• Alexander Merz · Ingelheim am Rhein, DE
• Arnaud Schilly · Gerolzhofen, DE
• Bastian Baeck · Offenbach, DE
• Florin Korn · Zeilarn, DE
• Nils Oth · Darmstadt, DE

Key dates

• Filing date: Oct 24, 2014
• Grant date: Jan 23, 2018
• Expiry date: Nov 26, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2200/1015
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for operating an internal combustion engine is described in which a combustion air ratio (λ) is determined and used to determine a deviation of this combustion air ratio from an in particular default or determined set point combustion air ratio. Spontaneous ignition of the internal combustion engine are detected based on the determined deviation (Δλ) and used to control the operation of the engine.