Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HYBRID EXCAVATOR BOOM ACTUATING SYSTEM AND METHOD FOR CONTROLLING SAME
The present invention relates to a hybrid excavator boom actuating system and to a method for controlling the same. The hybrid excavator boom actuating system comprises: an electric motor serving as a motor or a generator; an ultra capacitor for storing electricity generated by the electric motor; a hydraulic pump motor driven by the electric motor to supply hydraulic fluid to a boom; a boom control valve which has a closed circuit for selectively connecting or disconnecting an outlet line and an inlet line of the hydraulic pump motor to or from a head or a rod side of the boom; a main pump driven by the engine to supply hydraulic fluid to a bucket, a travel motor or an arm; a motor bypass valve connected to the outlet line and the inlet line to interconnect the outlet line and the inlet line or disconnect the outlet line from the inlet line; and a controller for controlling the electric motor, the hydraulic pump motor, the boom control valve and the motor bypass valve. According to the present invention, the hydraulic pump motor and the system are prevented from unstably operating and an operating performance of the boom is ensured to recover regenerable energy of the boom during a boom descending operation.
HYBRID EXCAVATOR BOOM ACTUATING SYSTEM AND METHOD FOR CONTROLLING SAME
The present invention relates to a hybrid excavator boom actuating system and to a method for controlling the same. The hybrid excavator boom actuating system comprises: an electric motor serving as a motor or a generator; an ultra capacitor for storing electricity generated by the electric motor; a hydraulic pump motor driven by the electric motor to supply hydraulic fluid to a boom; a boom control valve which has a closed circuit for selectively connecting or disconnecting an outlet line and an inlet line of the hydraulic pump motor to or from a head or a rod side of the boom; a main pump driven by the engine to supply hydraulic fluid to a bucket, a travel motor or an arm; a motor bypass valve connected to the outlet line and the inlet line to interconnect the outlet line and the inlet line or disconnect the outlet line from the inlet line; and a controller for controlling the electric motor, the hydraulic pump motor, the boom control valve and the motor bypass valve. According to the present invention, the hydraulic pump motor and the system are prevented from unstably operating and an operating performance of the boom is ensured to recover regenerable energy of the boom during a boom descending operation.
HYBRID EXCAVATOR BOOM ACTUATING SYSTEM AND METHOD FOR CONTROLLING SAME
BETÄTIGUNGSSYSTEM FÜR EINEN HYBRIDBAGGERAUSLEGER UND STEUERUNGSVERFAHREN DAFÜR
SYSTÈME HYBRIDE D'ACTIONNEMENT DE FLÈCHE DE PELLE MÉCANIQUE ET PROCÉDÉ PERMETTANT DE COMMANDER CE DERNIER
KANG BYUNG IL (Autor:in) / HONG KI HWAN (Autor:in)
10.01.2018
Patent
Elektronische Ressource
Englisch
IPC:
E02F
Baggern
,
DREDGING
/
B60K
Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen
,
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES
/
F02D
CONTROLLING COMBUSTION ENGINES
,
Steuern oder Regeln von Brennkraftmaschinen
/
F15B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL
,
Druckmittelbetriebene Systeme allgemein
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