EP 1423710 A1 20040602 - METHOD FOR DETECTING ROTATIONAL SPEED
Title (en)
METHOD FOR DETECTING ROTATIONAL SPEED
Title (de)
DREHZAHLERFASSUNGSVERFAHREN
Title (fr)
PROCEDE DE DETECTION DE LA VITESSE DE ROTATION
Publication
Application
Priority
- DE 0203303 W 20020906
- DE 10143954 A 20010907
Abstract (en)
[origin: WO03023412A1] The invention relates to a method for detecting rotational speed of an internal combustion engine (1) wherein a sector wheel (4) which is driven by the internal combustion engine (1) is scanned, the run of a specific segment of the sector wheel is detected, the duration of said segment-run is measured and a rotational speed value is determined therefrom, the duration of the run of a specific segment is re-measured, a relative variation between two consecutive segment-runs is determined and the rotational speed value is determined therefrom.
IPC 1-7
IPC 8 full level
F02D 41/14 (2006.01); G01P 3/489 (2006.01)
CPC (source: EP US)
F02D 41/1403 (2013.01 - EP US); G01P 3/489 (2013.01 - EP US)
Citation (search report)
See references of WO 03023412A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03023412 A1 20030320; DE 10143954 C1 20030430; EP 1423710 A1 20040602; US 2004163469 A1 20040826; US 7096136 B2 20060822
DOCDB simple family (application)
DE 0203303 W 20020906; DE 10143954 A 20010907; EP 02797902 A 20020906; US 79042404 A 20040301