Patent · US Active

Method for operating an internal combustion engine having at least one combustion chamber and internal combustion engine for carrying out such a method

US11306694B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

Rolls-Royce Solutions, GmbH · DE

Inventors

Tobias Frank · Friedrichshafen, DE
Thorsten Konrad · Berlin, DE
Aron Toth · Friedrichshafen, DE

Key dates

Filing date	May 18, 2020
Grant date	Apr 19, 2022
Priority date	—
Expiry date	May 18, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D35/023
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating an internal combustion engine. The method includes detecting a structure borne sound signal in a time-dependent manner for the at least one combustion chamber during operation of the internal combustion engine, and determining, in a predetermined measuring window, at least one evaluation parameter from the detected structure borne sound signal. The method also includes obtaining at least one comparative result by comparing the at least one evaluation parameter with at least one predetermined comparison value, and assigning to the structure borne sound signal, on the basis of the at least one comparative result, one of a knocking event in the at least one combustion chamber and an interference signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.