EP 2148978 B1 20150805 - METHOD FOR INDICATING STATES OF AN ELECTRIC COMPONENT TO AN ENGINE CONTROL DEVICE OF AN INTERNAL COMBUSTION ENGINE
Title (en)
METHOD FOR INDICATING STATES OF AN ELECTRIC COMPONENT TO AN ENGINE CONTROL DEVICE OF AN INTERNAL COMBUSTION ENGINE
Title (de)
VERFAHREN ZUR RÜCKMELDUNG VON ZUSTÄNDEN EINER ELEKTRISCHEN KOMPONENTE AN EIN MOTORSTEUERGERÄT EINER VERBRENNUNGSKRAFTMASCHINE
Title (fr)
PROCÉDÉ DE RÉTROSIGNALISATION D'ÉTATS D'UN COMPOSANT ÉLECTRIQUE À UNE COMMANDE MOTEUR D'UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- EP 2008055147 W 20080428
- DE 102007024562 A 20070525
- DE 102007026601 A 20070608
Abstract (en)
[origin: WO2008145469A1] In prior art, a signal line between an engine control device and a control unit of an electric component is connected to ground in order to transmit a fault. However, prior art does not suggest transmitting current statuses or a fault diagnosis via the signal line. According to the invention, the duration of the connection to ground of the signal line to the engine control device is used for identifying the fault and can simultaneously be used for indicating a current value of the electric component. The faults are subdivided into groups (7, 12, 14) of different faults (8-11, 15-18) according to the seriousness of the faults such that the more serious the fault is, the longer the connection to ground remains established. This makes it possible to diagnose a fault and indicate a current status with minimal additional effort.
IPC 8 full level
F02D 41/22 (2006.01); F02D 41/26 (2006.01)
CPC (source: EP US)
F02D 41/221 (2013.01 - EP US); F02D 41/266 (2013.01 - EP US); F02D 41/28 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008145469 A1 20081204; DE 102007026601 B3 20081224; EP 2148978 A1 20100203; EP 2148978 B1 20150805; JP 2010528217 A 20100819; JP 5361873 B2 20131204; US 2010174441 A1 20100708; US 8392060 B2 20130305
DOCDB simple family (application)
EP 2008055147 W 20080428; DE 102007026601 A 20070608; EP 08749777 A 20080428; JP 2010509767 A 20080428; US 60193108 A 20080428