Global Patent Index - EP 1321668 A1

EP 1321668 A1 20030625 - Apparatus for detecting abnormality of glow plugs

Title (en)

Apparatus for detecting abnormality of glow plugs

Title (de)

Vorrichtung zur Fehlererkennung von Glühkerzen

Title (fr)

Appareil détecteur d'anomalie de bougies de préchauffage

Publication

EP 1321668 A1 20030625 (EN)

Application

EP 01129852 A 20011214

Priority

EP 01129852 A 20011214

Abstract (en)

An apparatus for detecting abnormality of a glow plug (22) without using special circuits or devices. The glow plug (22) is arranged in a diesel engine (2) and is heated by current supplied from a power supply to help start the diesel engine. The apparatus includes a controller (52) that controls the current supplied from the power supply to the glow plug (22). The controller changes the state of the current and determines abnormality of the glow plug based on the difference between an operating condition of the diesel engine before and after the change. <IMAGE>

IPC 1-7

F02P 19/02; F02D 41/22

IPC 8 full level

F02D 41/08 (2006.01); F02D 41/22 (2006.01); F02P 19/02 (2006.01)

CPC (source: EP)

F02D 41/083 (2013.01); F02P 19/027 (2013.01)

Citation (applicant)

Citation (search report)

  • [A] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27)
  • [DA] PATENT ABSTRACTS OF JAPAN vol. 007, no. 221 (M - 246) 30 September 1983 (1983-09-30)
  • [DA] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29)
  • [DA] PATENT ABSTRACTS OF JAPAN vol. 006, no. 089 (M - 132) 27 May 1982 (1982-05-27)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

EP 1321668 A1 20030625; EP 1321668 B1 20050427; DE 60110444 D1 20050602; DE 60110444 T2 20060223; ES 2240318 T3 20051016

DOCDB simple family (application)

EP 01129852 A 20011214; DE 60110444 T 20011214; ES 01129852 T 20011214