Patent · US Expired

Method of controlling an adjustable operating parameter of an internal combustion engine with direct fuel injection

US5904127A · kind A · utility

12Cited by

10References

3Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Roland Kemmler · Stuttgart, DE
Guenter Karl · Eßlingen, DE
Peter Hohner · Echterdingen, DE
Bernd Baur · Eßlingen, DE

Key dates

Filing date	Oct 15, 1997
Grant date	May 18, 1999
Priority date	—
Expiry date	Oct 15, 2017

Classification

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

Abstract

In a method of controlling adjustable operating parameters of an internal combustion engine with direct fuel injection which includes at least one cylinder having a piston delimiting a combustion chamber, a fuel injector and a spark plug, wherein air supplied to the combustion chamber through an air intake passage forms with the fuel injected by the fuel injector a fuel/air mixture which is compressed and produces a plasma cloud which is then ignited by a spark generated between the electrodes of the spark plug, the ionization degree of the plasma cloud is measured and an ionization signal is formed and supplied to an electronic control unit where it is utilized to control at least one operating parameter of the internal combustion engine.

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