Patent · US Active

Method and device for operating an internal combustion engine

US7874281B2 · kind B2 · utility

6Cited by

13References

20Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Matthias Delp · Bad Abbach, DE
Gerhard Eser · Munich, DE

Key dates

Filing date	May 21, 2007
Grant date	Jan 25, 2011
Priority date	—
Expiry date	Jul 24, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2200/0602
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a method and a device for operating an internal combustion engine with a fuel pump, which on the drive side is coupled with a camshaft or a crankshaft, and a fuel accumulator, which is supplied by the fuel pump and to which a pressure sensor is assigned for sensing the pressure in the fuel accumulator, to each cycle of the internal combustion engine a first and a second crankshaft rotation (CRK_R1, CRK_R2) are assigned. Depending on a signal sequence (P_F_S) of the sensed pressure in the fuel accumulator which is characteristic of the respective crankshaft rotation it is ascertained whether the crankshaft is in its first or second rotation (CRK_R1, CRK_R2).

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