A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONTROL DEVICE AND CONSTRUCTION EQUIPMENT PROVIDED THEREWITH
A control device is configured to sufficiently reduce the drive loss of a hydraulic pump. The control device is provided with a controller (14) configured to control a regeneration valve (22) to switch to a regeneration state, and to control the flow rate of a second hydraulic pump (16) to reduce the ejection flow rate of the second hydraulic pump (16) in accordance with regeneration of hydraulic oil through the regeneration valve (22) when a combined operation of lowering a boom and pressing an arm is performed. The controller (14) outputs a command for setting the number of rotations of an engine (5) to be smaller than the rotation number designated by a rotation number designating unit (29) when the ejection flow rate of the second hydraulic pump (16) is not larger than a predetermined flow rate during the combined operation.
CONTROL DEVICE AND CONSTRUCTION EQUIPMENT PROVIDED THEREWITH
A control device is configured to sufficiently reduce the drive loss of a hydraulic pump. The control device is provided with a controller (14) configured to control a regeneration valve (22) to switch to a regeneration state, and to control the flow rate of a second hydraulic pump (16) to reduce the ejection flow rate of the second hydraulic pump (16) in accordance with regeneration of hydraulic oil through the regeneration valve (22) when a combined operation of lowering a boom and pressing an arm is performed. The controller (14) outputs a command for setting the number of rotations of an engine (5) to be smaller than the rotation number designated by a rotation number designating unit (29) when the ejection flow rate of the second hydraulic pump (16) is not larger than a predetermined flow rate during the combined operation.
CONTROL DEVICE AND CONSTRUCTION EQUIPMENT PROVIDED THEREWITH
STEUERUNGSVORRICHTUNG UND BAUMASCHINE DAMIT
DISPOSITIF DE COMMANDE ET ÉQUIPEMENT DE CONSTRUCTION POURVU DE CELUI-CI
HIROZAWA MITSUNORI (author) / UEDA KOJI (author)
2018-04-11
Patent
Electronic Resource
English
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