Method for adapting a fuel quantity to be injected in an internal combustion engine

US11577603B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Alexander Perless · Lambach, DE
• Cam Lai Ngo · Stuttgart, DE
• Guido Schock · Herten, DE
• Holger Jessen · Ludwigsburg, DE
• Juergen Geier · Hessigheim, DE
• Martin Schaefer · Gebenstorf, CH

Key dates

• Filing date: Mar 3, 2020
• Grant date: Feb 14, 2023
• Expiry date: Mar 19, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60K2015/0358
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for operating an internal combustion engine. The method includes: operating the internal combustion engine including a lambda regulation, which sets a fuel quantity to be supplied in accordance with a predefined setpoint lambda value, at preset times, carrying out a filter cleaning operation for a fuel tank ventilation, as a function of the presence of a release condition of the internal combustion engine, carrying out an adaptation of the lambda regulation by adapting at least one adaptation parameter as a function of operating variables of the internal combustion engine, at active filter cleaning operation and upon the presence of the release condition, operating variables which are required to carry out the adaptation of the lambda regulation being recorded, at deactivated filter cleaning operation and presence of the release condition, the adaptation of the lambda regulation being carried out as a function of the recorded operating variables.