Method and device for operating an internal combustion engine

US9534556B2 · kind B2 · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Georg Louven · Neuwied, DE
• Jens Wojahn · Bensberg, DE
• Klemens Grieser · Langenfeld, DE
• Marco Marceno · Hagen, DE
• Helmut Hans Ruhland · Eschweiler, DE
• Thomas Lorenz · Chesterfield, US
• Moritz Klaus Springer · Hagen, DE

Key dates

• Filing date: May 23, 2013
• Grant date: Jan 3, 2017
• Expiry date: Oct 30, 2035

Classification

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

Abstract

The disclosure relates to a method for operating an internal combustion engine having a plurality of cylinders, the method comprising, during one working cycle, distributing fuel for each cylinder of the plurality of cylinders among a plurality of injection processes according to settable split factors which respectively define a setpoint fuel mass and/or injection duration and time setting of each respective injection process for the plurality of individual injection processes, wherein random variation is carried out for at least one injection process.