Patent · US Active

Method for determining the composition of the fuel used to operate an internal combustion engine

US10570831B2 · kind B2 · utility

2Cited by

6References

11Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Tobias Braun · Undorf, DE
Gerhard Haft · Munich, DE
Rainer List · Renningen, DE

Key dates

Filing date	Nov 24, 2016
Grant date	Feb 25, 2020
Priority date	—
Expiry date	Feb 8, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating an internal combustion engine may include: measuring dynamic pressure oscillations in the inlet tract at a defined operating point during normal operation; generating a corresponding pressure oscillation signal; determining a crankshaft phase angle; determining an actual phase position using the pressure oscillation signal by discrete Fourier transformation; determining a chemical composition of the fuel using the determined actual phase position and reference phase positions of the same signal frequency for different fuel compositions; and adjusting operating parameters of the internal combustion engine based on the determined chemical composition.

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