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A platform for research: civil engineering, architecture and urbanism
ELECTRIC OPERATING DEVICE OF HYDRAULIC WORK MACHINE
PROBLEM TO BE SOLVED: To provide an electric operating device capable of securing operability of a hydraulic actuator even when any one of a plurality of control valve controllers for switching and driving a plurality of control valves fails.SOLUTION: An electric operating device of a hydraulic work machine includes: a main controller for calculating first control valve changeover target flow rate and second control valve changeover target flow rate according to an operation of an operating device; a first control valve controller for controlling a first control valve according to the first control valve changeover target flow rate; and a second control valve controller for controlling a second control valve according to second control valve changeover target flow rate. The main controller includes an output changeover section for commanding each output cutoff signal of the first control valve controller and the second control valve controller. When a failure state of either one of the first and second control valve controllers is determined on the basis of a detection result of an operation state detection device and the first and second control valve changeover target flow rate, the output cutoff signal is commanded to either one of the first and second control valve controllers, which is determined as the failure state.SELECTED DRAWING: Figure 3
【課題】複数の制御弁を切換駆動する複数の制御弁コントローラのいずれかが故障した場合でも、油圧アクチュエータの操作性を確保できる電気式操作装置を提供する。【解決手段】操作装置の操作に応じて第１制御弁切換目標流量と第２制御弁切換目標流量とを算出するメインコントローラと、第１制御弁切換目標流量に応じて第１制御弁を制御する第１制御弁コントローラと、第２制御弁切換目標流量に応じて制御する第２制御弁コントローラとを備え、メインコントローラは、第１制御弁コントローラ及び第２制御弁コントローラの出力遮断信号を指令する出力切換部を備え、動作状態検出装置の検出結果と第１及び第２制御弁切換目標流量に基づいて、第１及び第２制御弁コントローラのいずれか一方の故障状態を判定したときに、故障状態と判定した第１及び第２制御弁コントローラのいずれか一方へ出力遮断信号を指令する。【選択図】 図３
ELECTRIC OPERATING DEVICE OF HYDRAULIC WORK MACHINE
PROBLEM TO BE SOLVED: To provide an electric operating device capable of securing operability of a hydraulic actuator even when any one of a plurality of control valve controllers for switching and driving a plurality of control valves fails.SOLUTION: An electric operating device of a hydraulic work machine includes: a main controller for calculating first control valve changeover target flow rate and second control valve changeover target flow rate according to an operation of an operating device; a first control valve controller for controlling a first control valve according to the first control valve changeover target flow rate; and a second control valve controller for controlling a second control valve according to second control valve changeover target flow rate. The main controller includes an output changeover section for commanding each output cutoff signal of the first control valve controller and the second control valve controller. When a failure state of either one of the first and second control valve controllers is determined on the basis of a detection result of an operation state detection device and the first and second control valve changeover target flow rate, the output cutoff signal is commanded to either one of the first and second control valve controllers, which is determined as the failure state.SELECTED DRAWING: Figure 3
【課題】複数の制御弁を切換駆動する複数の制御弁コントローラのいずれかが故障した場合でも、油圧アクチュエータの操作性を確保できる電気式操作装置を提供する。【解決手段】操作装置の操作に応じて第１制御弁切換目標流量と第２制御弁切換目標流量とを算出するメインコントローラと、第１制御弁切換目標流量に応じて第１制御弁を制御する第１制御弁コントローラと、第２制御弁切換目標流量に応じて制御する第２制御弁コントローラとを備え、メインコントローラは、第１制御弁コントローラ及び第２制御弁コントローラの出力遮断信号を指令する出力切換部を備え、動作状態検出装置の検出結果と第１及び第２制御弁切換目標流量に基づいて、第１及び第２制御弁コントローラのいずれか一方の故障状態を判定したときに、故障状態と判定した第１及び第２制御弁コントローラのいずれか一方へ出力遮断信号を指令する。【選択図】 図３
ELECTRIC OPERATING DEVICE OF HYDRAULIC WORK MACHINE
油圧作業機械の電気式操作装置
KYOMASU TSUKASA (author) / MORIKI SHUICHI (author) / SAKAMOTO HIROSHI (author) / TSURIGA YASUTAKA (author)
2017-02-09
Patent
Electronic Resource
Japanese
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