EP 2313336 B1 20150401 - EARLY OVERLOAD DETECTION FOR A LOAD LIFTING DEVICE
Title (en)
EARLY OVERLOAD DETECTION FOR A LOAD LIFTING DEVICE
Title (de)
FRÜHZEITIGE ÜBERLASTERKENNUNG FÜR EINE LASTHUBVORRICHTUNG
Title (fr)
RECONNAISSANCE PRÉCOCE D'UNE SURCHARGE, POUR UN ÉQUIPEMENT DE LEVAGE
Publication
Application
Priority
- EP 2009005907 W 20090814
- DE 102008045330 A 20080820
Abstract (en)
[origin: WO2010020378A1] The invention relates to a method for the dynamic detection of a faulty operation of a load lifting device, wherein the load lifting device has a force sensor, comprising the following steps: monitoring a signal of the force sensor for an increase; defining a time period required for lifting the load receiving means; monitoring the signal for an exceeding of the overload threshold; if the overload threshold is not exceeded during the defined time period, determining a weight force within the defined time period from the signal, and establishing the weight force determined as a base load; establishing a dynamic jump threshold as the nominal overload threshold, which is greater than the base load and smaller than the current overload threshold; and monitoring whether the signal is greater than or equal to the jump threshold, and generating a switch-off signal, if the signal is greater than or equal to the jump threshold.
IPC 8 full level
B66C 15/06 (2006.01)
CPC (source: EP KR)
B66C 13/16 (2013.01 - KR); B66C 15/06 (2013.01 - KR); B66C 15/065 (2013.01 - EP)
Citation (examination)
- EP 1445231 A2 20040811 - EKO STAHL GMBH [DE]
- WO 0181231 A1 20011101 - NATSTEEL ENGINEERING PTE LTD [SG], et al
- JAFARIPANAH, M.: "Load cell response correction using analog adaptive techniques", CIRCUITS AND SYSTEMS, 2003. ISCAS '03. PROCEEDINGS OF THE 2003 INTERNATIONAL SYMPOSIUM ON, vol. 4, 25 May 2003 (2003-05-25) - 28 May 2003 (2003-05-28), DOI: 10.1109/ISCAS.2003.1206283
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 MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010020378 A1 20100225; CN 102123935 A 20110713; CN 102123935 B 20131009; DE 102008045330 A1 20100422; DE 102008045330 B4 20130321; EP 2313336 A1 20110427; EP 2313336 B1 20150401; KR 101625248 B1 20160527; KR 20110044268 A 20110428
DOCDB simple family (application)
EP 2009005907 W 20090814; CN 200980132319 A 20090814; DE 102008045330 A 20080820; EP 09777882 A 20090814; KR 20117004798 A 20090814