Method for controlling an internal combustion engine and internal combustion engine

US8347864B2 · kind B2 · utility

Assignee

• CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

• Wolfgang Mai · Kronberg, DE
• Jens Pache · Kelkheim, DE

Key dates

• Filing date: Jan 29, 2008
• Grant date: Jan 8, 2013
• Expiry date: Jan 20, 2030

Classification

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

Abstract

An internal combustion engine (1) has a fuel tank (18) and a fuel vapor reservoir (25). According to the method during the tank vent period—before opening the tank vent valve (28) a reference value is updated if a condition is met, and otherwise the existing reference value is maintained, —before opening the tank vent valve (28) an opening period is determined as a function of at least one variable, —the tank vent valve (28) is controlled such that the flow achieves the target flow value by the end of the opening period that was determined, —the load level of the fuel vapor reservoir (25) is computed based on the reference value, —a fuel amount is computed based on the load level, —and the fuel amount to be metered by the injection valve (22) is corrected based on the computer fuel amount.