A drive controller of an operating machine configured to drive a structure by a hydraulic motor 2 and an electric motor 3 includes: a remote control valve 5 configured to determine the operation amount of the structure; an electric motor torque calculation portion configured to calculate torque of the electric motor 3; a hydraulic motor torque calculation portion configured to calculate torque of the hydraulic motor 2; a controller 7 configured to transmit an opening position control signal to the control valve 14 based on the operation amount determined by the remote control valve 5 such that torque necessary to drive the structure is obtained from the torque of the electric motor 3 and the torque of the hydraulic motor 2; and solenoid-operated reducing valves 19 and 20 each configured to reduce a pilot pressure, to be applied to the control valve 14, based on the opening position control signal output from the controller 7.
DRIVE CONTROLLER OF OPERATING MACHINE
ANTRIEBSSTEUERVORRICHTUNG FÜR EINE ARBEITSMASCHINE
DISPOSITIF DE COMMANDE D'ACTIONNEMENT DE MACHINE D'USINAGE
18.09.2019
Patent
Elektronische Ressource
Englisch
Europäisches Patentamt | 2019
|Europäisches Patentamt | 2017
|Operating oil temperature controller for hydraulic drive device
Europäisches Patentamt | 2015
|Method and controller for operating hybrid drive system
Europäisches Patentamt | 2023
|