Patent · US Active

Method and device for operating an injection valve

US8397697B2 · kind B2 · utility

1Cited by

5References

20Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Erwin Achleitner · Obertraubling, DE
Dirk Baranowski · Regensburg, DE
Franz Kunz · Fairview Avenue, DE

Key dates

Filing date	Jun 2, 2008
Grant date	Mar 19, 2013
Priority date	—
Expiry date	Feb 16, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/2003
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a method and a device for operating an injection valve, a relevant time (t_ACT) is determined during a catch phase (PH_CATCH) when the electromagnetic actuator reaches a predetermined fraction value of the electric current, which value is smaller than a maximum current value, and a fraction of interval (T_FRAC) since the start of the respective catch phase (PH_CATCH) is determined depending thereon and the injection valve is diagnosed depending on the fraction of interval (T_FRAC) and the predetermined minimum and maximum threshold interval values (THD_T_MIN, THD_T_MAX).

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