EP 1236891 A3 20050406 - Apparatus for diagnosing a spark ignition engine
Title (en)
Apparatus for diagnosing a spark ignition engine
Title (de)
Vorrichtung zur Diagnose einer fremdgezündeten Brennkraftmaschine
Title (fr)
Dispositif pour le diagnostic d'un moteur à allumage commandé
Publication
Application
Priority
DE 10110047 A 20010302
Abstract (en)
[origin: EP1236891A2] The diagnosis circuit is for a motor vehicle engine ignition. Each cylinder has a spark plug connected via a potential cut off diode (20) connected with the secondary winding (14) of the ignition coil (12). The voltage (UZ) applied to the plug is compared to a preset value (US) by a comparator (30). The switching signal (UK) is evaluated as a signal fed to the fuel injector adjacent to the plug. The spark position is compared to a preset crankshaft rotational position.
IPC 1-7
IPC 8 full level
F02P 17/12 (2006.01)
CPC (source: EP)
F02P 17/12 (2013.01); F02P 2017/006 (2013.01); F02P 2017/121 (2013.01)
Citation (search report)
- [DA] DE 4236878 A1 19940505 - BOSCH GMBH ROBERT [DE]
- [DA] DE 4207140 A1 19920910 - HONDA MOTOR CO LTD [JP]
- [A] US 5495757 A 19960305 - ATANASYAN ALAIN A [FR], et al
- [A] US 6032650 A 20000307 - RASK PATRIK [SE]
- [A] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13 5 February 2001 (2001-02-05)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1236891 A2 20020904; EP 1236891 A3 20050406; EP 1236891 B1 20060621; DE 10110047 A1 20020905; DE 50207241 D1 20060803
DOCDB simple family (application)
EP 02004575 A 20020228; DE 10110047 A 20010302; DE 50207241 T 20020228