Method for operating an injector on an internal combustion engine, control unit for an internal combustion engine, designed to carry out a method of this type, and internal combustion engine having a control unit of this type

US11933243B2 · kind B2 · utility

Assignee

• Rolls-Royce Solutions, GmbH · DE

Inventors

• Manuel Boog · Baindt, DE
• Andrea Prospero · Tettnang, DE

Key dates

• Filing date: May 3, 2023
• Grant date: Mar 19, 2024
• Expiry date: May 3, 2043

Classification

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

Abstract

A method for operating an injector on an internal combustion engine includes the steps of: introducing a fuel into a combustion chamber of the internal combustion engine by way of the injector; capturing, for a plurality of injection events, a wear value for the injector; assigning each respective one of the wear value that is captured to a respective one of a plurality of wear value classes; determining, for each of the plurality of wear value classes, a class frequency of a plurality of the wear value that are captured and assigned to a corresponding one of the plurality of wear value classes; calculating, based on a plurality of class frequencies of the plurality of wear value classes, a total wear value for the injector; and evaluating a condition of the injector based on the total wear value.