Global Patent Index - EP 1003967 A1

EP 1003967 A1 20000531 - MEASURING AND DIAGNOSTIC DEVICE FOR AN IGNITION SYSTEM OF AN INTERNAL COMBUSTION ENGINE

Title (en)

MEASURING AND DIAGNOSTIC DEVICE FOR AN IGNITION SYSTEM OF AN INTERNAL COMBUSTION ENGINE

Title (de)

MESS- UND DIAGNOSEEINRICHTUNG FÜR EIN ZÜNDSYSTEM EINER BRENNKRAFTMASCHINE

Title (fr)

DISPOSITIF DE MESURE ET DE DIAGNOSTIC POUR LE SYSTEME D'ALLUMAGE D'UN MOTEUR A COMBUSTION INTERNE

Publication

EP 1003967 A1 (DE)

Application

EP 98949883 A

Priority

  • DE 9802342 W
  • DE 19734896 A

Abstract (en)

[origin: WO9907995A1] The primary voltage shape of the ignition voltage (Upr) is converted into an analog current (I1) via a first regulating switch (4) whose output voltage (Vo) is compared with a first reference voltage (V1) in a first comparator (5). In a second comparator (6), the output voltage (Vo) is compared with a second reference voltage (V2). At the output of the first comparator (5), a diagnostic signal (IGBT-Diag) can be picked up for the ignition switch (3); and at the output of the second comparator (6), a measuring signal (IGN-Diag) can be picked up for the combustion period.

IPC 1-7

F02P 3/055; F02P 17/12

IPC 8 full level

F02P 3/055 (2006.01); F02P 17/12 (2006.01)

CPC (source: EP)

F02P 3/0552 (2013.01); F02P 17/12 (2013.01)

Citation (search report)

See references of WO 9907995A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9907995 A1 19990218; EP 1003967 A1 20000531; EP 1003967 B1 20050216; KR 100564083 B1 20060327; KR 20010022780 A 20010326

DOCDB simple family (application)

DE 9802342 W 19980812; EP 98949883 A 19980812; KR 20007001380 A 20000210