Method and device for dosing fuel which is to be injected into a combustion chamber of an internal combustion engine

US7769535B2 · kind B2 · utility

Assignees

• HYUNDAI MOTOR COMPANY · KR
• KIA MOTORS CORPORATION · KR
• Hyundai Motor Europe Technical Center GMBH · DE

Inventors

• Johannes Ullrich · Trebur, DE
• Roland Steininger · Gerolzhofen, DE
• Jurgen Grimm · Prien am Chiemsee, DE
• Stefan Lang · Munich, DE
• Julian Kuric · Gerolzhofen, DE
• Viktor Boschmann · Gerolzhofen, DE
• Daniela Bollmann · Gerolzhofen, DE

Key dates

• Filing date: Jan 21, 2009
• Grant date: Aug 3, 2010
• Expiry date: Jan 21, 2029

Classification

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

Abstract

Method for dosing fuel injected into an engine, with a fuel quantity for an injector, the fuel quantity being divided into pilot and main injections for respective activation duration having activation duration corrective value, the method may include storing correlation data between fuel injection quantity and activation time under at least a state parameter of the injector, wherein the fuel injection quantity includes reference total injection quantities determined for predetermined operating states of the engine, determining a present operating state of the engine, placing the engine into one of the predetermined operating states, determining a present total injection quantity and a reference total injection quantity in one of the at least a state parameter of the injector, and defining the respective activation duration corrective value for the pilot and main injection considering a difference between the reference total injection quantity and the present total injection quantity.