EP 1525596 A1 20050427 - METHOD FOR DETERMINING THE POSITION OF A POSITIONING ELEMENT OF AN ELECTRICALLY-OPERATED ACTUATOR, CORRESPONDING CIRCUIT ARRANGEMENT AND DEVICE
Title (en)
METHOD FOR DETERMINING THE POSITION OF A POSITIONING ELEMENT OF AN ELECTRICALLY-OPERATED ACTUATOR, CORRESPONDING CIRCUIT ARRANGEMENT AND DEVICE
Title (de)
VERFAHREN ZUM ERMITTELN DER POSITION EINES STELLELEMENTS EINES ELEKTRISCH ANTREIBBAREN AKTUATORS, ZUGEH RIGE SCHALTUNGSANORDN UNG UND VORRICHTUNG
Title (fr)
PROCEDE PERMETTANT DE DETERMINER LA POSITION D'UN ELEMENT DE REGLAGE D'UN ACTIONNEUR A COMMANDE ELECTRIQUE, ET CIRCUIT ET DISPOSITIF CORRESPONDANTS
Publication
Application
Priority
- DE 10235188 A 20020726
- EP 0307630 W 20030715
Abstract (en)
[origin: US2004016461A1] System determines the position of a control element of an electrically driven actuator. The actuator may be switched on by a controlled switch when a lower threshold value is reached and may be switched off when an upper threshold value is reached. An on-period and an off-period are determined as a function of the lower threshold value, the upper threshold value, and the electric switching behavior of the actuator depending on the position of the control element. From the on-period and the off-period, the position of the control element are determined from a comparison of the quotient of the on-period or off-period and the sum of the on-period and off-period, and form a comparison of the sum of the on-period and the off-period with corresponding stored reference data. The system includes accompanying circuitry for application of the process, and an accompanying device, in particular a hydraulic valve.
IPC 1-7
IPC 8 full level
H01F 7/18 (2006.01); G05B 19/19 (2006.01); F02D 41/20 (2006.01)
CPC (source: EP US)
G05B 19/19 (2013.01 - EP US); F02D 41/20 (2013.01 - EP US); F02D 2041/2024 (2013.01 - EP US); F02D 2041/2058 (2013.01 - EP US); G05B 2219/41224 (2013.01 - EP US); H01F 7/1844 (2013.01 - EP US); Y10T 137/8242 (2015.04 - EP US)
Citation (search report)
See references of WO 2004013874A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
US 2004016461 A1 20040129; US 6895997 B2 20050524; AU 2003250949 A1 20040223; CN 1286128 C 20061122; CN 1596451 A 20050316; DE 10235188 B3 20040401; EP 1525596 A1 20050427; JP 2005534189 A 20051110; WO 2004013874 A1 20040212
DOCDB simple family (application)
US 36768003 A 20030219; AU 2003250949 A 20030715; CN 03801613 A 20030715; DE 10235188 A 20020726; EP 0307630 W 20030715; EP 03766167 A 20030715; JP 2004525196 A 20030715