Method for ascertaining a variable characterizing a flow rate of a fuel injector

US11506165B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Stefan Bollinger · Marbach am Neckar, DE
• Stefan Nonnenmacher · Stuttgart, DE
• Daniel Heitz · Rutesheim, DE
• Gabriel Iran · Bietigheim-Bissingen, DE
• Kilian Bucher · Waldenbuch, DE
• Michael Kutter · Basel, CH
• Patrick Thum · Tiefenbronn, DE

Key dates

• Filing date: Nov 8, 2021
• Grant date: Nov 22, 2022
• Expiry date: Nov 8, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2041/1436
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for ascertaining a variable characterizing a flow rate of a fuel injector during an operation of an internal combustion engine, to which the fuel injector is assigned. At least two input values for a data-based model are ascertained, and at least one output value is determined with the aid of the data-based model, on the basis of which a value for the variable characterizing the flow rate of the fuel injector is ascertained. The data-based model combines at least two methods differing from one another for ascertaining a variable characterizing a flow rate of a fuel injector.