EP 2527281 A2 20121128 - Elevator
Title (en)
Elevator
Title (de)
Aufzug
Title (fr)
Élévateur
Publication
Application
Priority
JP 2011117093 A 20110525
Abstract (en)
An elevator includes an arithmetic device (32, 37) that incorporates a comparing unit (46) for comparing a car speed V1 calculated by using an encoder signal (28) from an encoder (21) with a car speed V2 calculated by using an acceleration sensor signal (31) from an acceleration sensor (24) installed on a car (1) to detect a failure of the encoder (21) by determining whether a difference between the car speeds V1 and V2 is present in a predetermined range, thereby, a failure diagnosis in the arithmetic device is carried out in low cost and high reliability.
IPC 8 full level
CPC (source: EP)
B66B 5/0031 (2013.01); B66B 5/06 (2013.01)
Citation (applicant)
- WO 2004076326 A1 20040910 - MITSUBISHI ELECTRIC CORP [JP]
- WO 2005049467 A1 20050602 - MITSUBISHI ELECTRIC CORP [JP], et al
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2527281 A2 20121128; EP 2527281 A3 20131030; EP 2527281 B1 20150318; CN 102795521 A 20121128; CN 102795521 B 20150722; JP 2012246073 A 20121213; JP 5529075 B2 20140625
DOCDB simple family (application)
EP 12169035 A 20120523; CN 201210157995 A 20120521; JP 2011117093 A 20110525