Method for adaptation of a detected camshaft position, control unit for carrying out the method, internal combustion engine, and vehicle

US11280227B2 · kind B2 · utility

Assignee

• VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

• Michael Mazur · Dearborn Heights, US
• Jens Jeschke · Braunschweig, DE
• Johannes Forst · Hannover, DE
• Holger Blume · Hannover, DE
• Nico Gerhardt · Gifhorn, DE

Key dates

• Filing date: Aug 17, 2020
• Grant date: Mar 22, 2022
• Expiry date: Nov 27, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2400/11
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for adaptation of a detected camshaft position of a camshaft in an internal combustion engine with: Detection of an ACTUAL gas signal in a gas space that is associated with the camshaft and is associated with a detected camshaft position; Processing of the gas signal to produce an ACTUAL gas criterion; Modeling of multiple simulated gas criteria, each of which is associated with a target camshaft position; Determination of a simulated gas criterion with the least deviation from the ACTUAL gas criterion; Determination of an ACTUAL camshaft position that corresponds to the simulated gas criterion with the least deviation from the ACTUAL gas criterion; Determination of a camshaft position correction value from the difference between the ACTUAL camshaft position determined and the detected camshaft position; Determination of corrected camshaft positions by correcting the detected camshaft positions with the camshaft position correction value.