Patent · US Active

Method and control system for operating an internal combustion engine

US10648423B2 · kind B2 · utility

1Cited by

3References

14Claims

0Family size

Assignee

MAN Energy Solutions SE · DE

Inventors

Andreas Döring · Unterhaching, DE
Armin Weber · Mindelheim, DE

Key dates

Filing date	Jul 11, 2018
Grant date	May 12, 2020
Priority date	—
Expiry date	Jul 12, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating an internal combustion engine with multiple cylinders. Each cylinder of the internal combustion engine includes at least one fuel injector, and each fuel injector is activated for opening and closing via a solenoid valve of the respective fuel injector. Structure-borne sound waves emitted by the fuel injectors and/or accelerations caused by the fuel injectors are detected by measurement. The structure-borne sound waves detected by measurement and/or the accelerations detected by measurement are evaluated, and based on the evaluation, characteristics of the fuel injectors are automatically determined.

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