Patent · US Active

Method for determining the ethanol content of the fuel in a motor vehicle

US8113174B2 · kind B2 · utility

2Cited by

7References

11Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Gerhard Haft · Munich, DE
Wolfgang Moser · Regensburg, DE

Key dates

Filing date	May 31, 2007
Grant date	Feb 14, 2012
Priority date	—
Expiry date	Oct 22, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/30
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for determining the Ethanol content of the fuel in a motor vehicle uses the dependence of the lean-running limit of the internal combustion engine on the ethanol content of the fuel to determine the ethanol content, by the fact that the ethanol content is arrived at from the required reduction in the injected fuel quantity to reach the lean-running limit.

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