EP 2643577 A1 20131002 - CONTROL MEANS AND METHOD FOR DETECTING THE ROTATIONAL SPEED OF AN INTERNAL COMBUSTION ENGINE
Title (en)
CONTROL MEANS AND METHOD FOR DETECTING THE ROTATIONAL SPEED OF AN INTERNAL COMBUSTION ENGINE
Title (de)
STEUERUNG UND VERFAHREN ZUR DREHZAHLERFASSUNG EINER BRENNKRAFTMASCHINE
Title (fr)
COMMANDE ET PROCÉDÉ DE DÉTECTION DE LA VITESSE DE ROTATION D'UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102010061769 A 20101123
- EP 2011067963 W 20111014
Abstract (en)
[origin: WO2012069255A1] A method for detecting rotational speeds (n) of an internal combustion engine (2) having a signal wheel (12) with marks (M1-M7) for signalling on a crankshaft (9) of the internal combustion engine (2) is described, wherein by means of a sensor (11) the marks (M1-M7) on the signal wheel (12) are detected and evaluated by a sensing and evaluation device (10). In order to implement high-precision detection of a rotational speed, the rotational speeds (n) are evaluated with a sector section of approximately 6° to 35° in order to increase the precision on the basis of a reduced sector section of the signal wheel.
IPC 8 full level
F02D 41/34 (2006.01); F02N 11/08 (2006.01)
CPC (source: EP US)
F02D 41/009 (2013.01 - EP US); F02D 41/0097 (2013.01 - EP US); F02N 11/0855 (2013.01 - EP US); G01M 15/046 (2013.01 - US); F02D 41/042 (2013.01 - EP US); F02D 2250/06 (2013.01 - EP US)
Citation (search report)
See references of WO 2012069255A1
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
DOCDB simple family (publication)
DE 102010061769 A1 20120524; CN 103210196 A 20130717; CN 103210196 B 20170222; EP 2643577 A1 20131002; US 2013325246 A1 20131205; US 9170176 B2 20151027; WO 2012069255 A1 20120531
DOCDB simple family (application)
DE 102010061769 A 20101123; CN 201180056067 A 20111014; EP 11770106 A 20111014; EP 2011067963 W 20111014; US 201113988481 A 20111014