EP 2987762 B1 20190612 - METHOD FOR CONTROLLING A COMBINED ROTATION-THRUST MOVEMENT
Title (en)
METHOD FOR CONTROLLING A COMBINED ROTATION-THRUST MOVEMENT
Title (de)
VERFAHREN ZUM STEUERN EINER KOMBINIERTEN DREH-SCHUB-BEWEGUNG
Title (fr)
PROCEDE DE COMMANDE D'UN MOUVEMENT COMBINE DE ROTATION/DE POUSSEE
Publication
Application
Priority
DE 102014216736 A 20140822
Abstract (en)
[origin: US2016052760A1] The invention relates to a method and device for controlling a combined rotary/push movement of a load-receiving means of an industrial truck, in particular a three-way stacker, both the rotary movement and the push movement being brought about by means of respective hydraulic elements (32, 34), which are supplied with hydraulic fluid by a single hydraulic pump (22) which is driven by an associated pump motor (24), and a performance characteristic of the hydraulic pump (22) being controlled according to a predetermined progression over time during the rotary/push movement; the industrial truck comprising a valve assembly (30) which is designed to be operated such that, below a threshold value for the hydraulic pressure provided by the hydraulic pump (22), only the rotary movement of the load-receiving means is brought about, while, above the threshold value, both the rotary movement and the push movement are brought about. Here, sensor means (36a, 36b) are provided which detect a temperature of the pump motor (24) and/or of the hydraulic pump (22), and the predetermined progression over time of the performance characteristic of the hydraulic pump (22) during the rotary/push movement is adapted according to a predetermined relationship depending on the temperature of the pump motor (24) and/or of the pump (22) detected by the sensor means (36a, 36b).
IPC 8 full level
B66F 9/14 (2006.01); B66F 9/07 (2006.01); B66F 9/22 (2006.01); F15B 11/00 (2006.01); F15B 11/16 (2006.01)
CPC (source: EP US)
B66F 9/07 (2013.01 - EP US); B66F 9/147 (2013.01 - EP US); B66F 9/22 (2013.01 - US); F15B 11/003 (2013.01 - US); F15B 11/161 (2013.01 - US); F15B 2211/50509 (2013.01 - US)
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)
EP 2987762 A1 20160224; EP 2987762 B1 20190612; DE 102014216736 A1 20160225; US 2016052760 A1 20160225; US 9919907 B2 20180320
DOCDB simple family (application)
EP 15181758 A 20150820; DE 102014216736 A 20140822; US 201514830837 A 20150820