The present disclosure relates to a control circuit and a control method for boom energy regeneration, and the control circuit for boom energy regeneration includes: a boom cylinder which operates a boom of a construction machine; a regeneration device which regenerates energy of the boom cylinder; a hydraulic regeneration line which connects the boom cylinder and the regeneration device; a discharge amount control valve which is provided on the hydraulic regeneration line; a hydraulic discharge line which branches off from the hydraulic regeneration line at a front of the discharge amount control valve and is connected to a main control valve; and a control unit which controls the discharge amount control valve, such that the amount of oil, which is discharged from a head of the boom cylinder, is supplied to the regeneration device or a rod of the boom cylinder through the hydraulic regeneration line, and when the regeneration device has an abnormality, the amount of oil, which is discharged from the head of the boom cylinder, is supplied to the main control valve through the hydraulic discharge line.
CONTROL CIRCUIT AND CONTROL METHOD FOR BOOM ENERGY REGENERATION
STEUERSCHALTUNG UND STEUERUNGSVERFAHREN FÜR AUSLEGERENERGIERÜCKGEWINNUNG
CIRCUIT DE COMMANDE ET PROCÉDÉ DE COMMANDE À DES FINS DE RÉGÉNÉRATION D'ÉNERGIE DE FLÈCHE
28.11.2018
Patent
Elektronische Ressource
Englisch
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