EP 3385527 A1 20181010 - METHOD FOR DETECTING A FAILED ACTUATION OF A SWITCHABLE SOLENOID VALVE, ELECTRONIC CIRCUIT FOR PERFORMING THE METHOD, PUMP AND MOTOR VEHICLE
Title (en)
METHOD FOR DETECTING A FAILED ACTUATION OF A SWITCHABLE SOLENOID VALVE, ELECTRONIC CIRCUIT FOR PERFORMING THE METHOD, PUMP AND MOTOR VEHICLE
Title (de)
VERFAHREN ZUR ERKENNUNG EINER FEHLGESCHLAGENEN BETÄTIGUNG EINES SCHALTBAREN MAGNETVENTILS, ELEKTRONISCHE SCHALTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS, PUMPE UND KRAFTFAHRZEUG
Title (fr)
PROCÉDÉ POUR DÉTECTER UN ÉCHEC D'ACTIONNEMENT D'UNE SOUPAPE À SOLÉNOÏDE COMMUTABLE, CIRCUIT ÉLECTRONIQUE POUR L'APPLICATION DU PROCÉDÉ, POMPE ET VÉHICULE À MOTEUR
Publication
Application
Priority
EP 17165221 A 20170406
Abstract (en)
The invention is concerned with a method for detecting a failed actuation of a switchable solenoid valve (15), wherein in at least one actuation cycle (34) an electric current (I) is driven through the solenoid (18) of the valve (15) for closing the valve (15) with a predefined actuation energy (E) and for holding the valve (15) closed in a subsequent hold phase (37), wherein in the hold phase (37) a current strength value of the electric current (I) is controlled by switching a voltage source (U). The invention is characterized in that a switching frequency (F) at which the controller (17') switches the voltage source (U) is measured and if the switching frequency (F) fulfills a predefined failure criterion (46) in one actuation cycle (34), a signal signals that the current actuation cycle (34) is a failure cycle (43) in which the valve (15) did not close.
IPC 8 full level
F02D 41/20 (2006.01); F02D 41/24 (2006.01)
CPC (source: EP)
F02D 41/20 (2013.01); F02D 41/2432 (2013.01); F02D 41/2464 (2013.01); F02D 2041/2027 (2013.01); F02D 2041/2055 (2013.01)
Citation (applicant)
- US 2012167993 A1 20120705 - FEDOR III WILLIAM J [US], et al
- US 8245693 B2 20120821 - SURNILLA GOPICHANDRA [US], et al
Citation (search report)
- [XI] US 4970622 A 19901113 - BUECHL JOSEF [DE]
- [XI] US 6017017 A 20000125 - LUTZ DANNE [DE], et al
- [I] US 6188562 B1 20010213 - LUTZ DANNE [DE], et al
- [I] DE 102011076113 A1 20121122 - CONTINENTAL AUTOMOTIVE GMBH [DE]
- [AD] US 2012167993 A1 20120705 - FEDOR III WILLIAM J [US], et al
- [A] EP 2116709 A1 20091111 - PERKINS ENGINES CO LTD [GB]
- [A] EP 0882303 B1 20040421 - MOTOROLA INC [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 17165221 A 20170406