EP 1978490 A1 20081008 - System and method for automatic recognition of the operating state of a vehicle engine
Title (en)
System and method for automatic recognition of the operating state of a vehicle engine
Title (de)
System und Verfahren zur automatischen Erkennung des Betriebsstatus eines Fahrzeugmotors
Title (fr)
Système et procédé pour la reconnaissance automatique de l'état opérationnel d'un moteur de véhicule
Publication
Application
Priority
EP 07425194 A 20070402
Abstract (en)
A description is given of a system and a method for the recognition of the operating state of a vehicle engine, based on the detection of an acoustic noise signal, and possibly a vibration signal, propagated in a compartment of the vehicle, and on the comparison of a descriptor vector of the detected signals, comprising at least data indicative of the frequency and energy components of the signals, with a plurality of reference descriptor vectors indicative of known operating conditions, acquired in a learning phase, in such a way as to discriminate and recognize a first class of signals indicative of an operating condition and a second class of signals indicative of an inoperative condition of the vehicle engine.
IPC 8 full level
G07C 5/00 (2006.01)
CPC (source: EP)
F02D 41/00 (2013.01); G07C 5/02 (2013.01); G07C 5/085 (2013.01); F02D 2200/025 (2013.01); F02N 11/0848 (2013.01); G07C 5/008 (2013.01)
Citation (search report)
- [X] EP 1703471 A1 20060920 - HARMAN BECKER AUTOMOTIVE SYS [DE]
- [X] US 2004138882 A1 20040715 - MIYAZAWA YASUNAGA [JP]
- [X] WO 9009644 A1 19900823 - SMITHS INDUSTRIES PLC [GB]
- [A] WO 2005111947 A1 20051124 - VIRTUAL SWITCHES S A [CH], et al
- [A] FR 2723229 A1 19960202 - AFRIAT HERVE [FR]
- [A] US 2002107625 A1 20020808 - BECK FOLKER [US], et al
- [X] WO 0054240 A1 20000914 - JONGE WIEBREN DE [NL]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 07425194 A 20070402