Patent · US Active

Method and device for controlling knocking in an internal combustion engine

US10995691B2 · kind B2 · utility

2Cited by

38References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Matthias Biehl · Krottelbach, DE
Carsten Kluth · Stuttgart, DE
Jasmin Dieringer · Stuttgart, DE

Key dates

Filing date	Oct 15, 2018
Grant date	May 4, 2021
Priority date	—
Expiry date	Oct 15, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2200/101
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method and a device for controlling knocking in an internal combustion engine. A knock signal of a cylinder of the internal combustion engine is measured by a knock sensor and from that, a knock feature is generated. The knock feature is compared to a reference level in order to classify a combustion as a knocking or non-knocking combustion. The reference level is formed in consideration of a plurality of corrected knock features, the corrected knock features being formed from the knock features by determining map values from a program map as a function of operating parameters of the internal combustion engine and linking them additively, or by carrying out a low-pass filtering, or by determining map values from a program map as a function of operating parameters of the internal combustion engine and linking them additively and carrying out a low-pass filtering.

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