EP 2108808 A1 20091014 - Method for diagnosting evaporative losses from a fuel tank of an internal combastion engine
Title (en)
Method for diagnosting evaporative losses from a fuel tank of an internal combastion engine
Title (de)
Verfahren zur Diagnose von Verdunstungsverlusten aus einem Brennstofftank eines Verbrennungsmotors
Title (fr)
Procédé pour diagnostiquer les pertes d'évaporation d'un réservoir de carburant dans un moteur à combustion interne
Publication
Application
Priority
EP 08425230 A 20080408
Abstract (en)
Method for diagnosing evaporative losses from a fuel tank (3) of an internal combustion engine (1); the method of diagnosis consisting of: isolating the tank (3); pressurizing/depressurizing the tank (3) by means of a pneumatic machine (12) driven by an electric motor (13); measuring the time profile of at least one characteristic value of the electric motor (13); calculating the frequency range of the characteristic value of the electric motor (13); and diagnosing the rate of evaporative loss from the tank (3) as a function of the frequency range of the characteristic value of the electric motor (13).
IPC 8 full level
F02M 25/08 (2006.01)
CPC (source: EP)
F02M 25/0818 (2013.01)
Citation (search report)
- [XY] DE 19620231 C1 19971016 - AUDI AG [DE]
- [Y] EP 1406005 A1 20040407 - FORD GLOBAL TECH INC [US]
- [Y] FR 2842904 A1 20040130 - SIEMENS AG [DE]
- [X] DE 102006016339 A1 20071011 - BOSCH GMBH ROBERT [DE]
- [X] DE 10209483 A1 20030925 - BOSCH GMBH ROBERT [DE]
- [XY] GB 2335047 A 19990908 - BOSCH GMBH ROBERT [DE]
- [Y] EP 1457661 A2 20040915 - MITSUBISHI ELECTRIC CORP [JP]
- [Y] EP 1361100 A2 20031112 - EATON CORP [US]
- [Y] DE 19502776 C1 19960613 - SIEMENS AG [DE]
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
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08425230 A 20080408