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CONTROL DEVICE FOR WORK MACHINE AND WORK MACHINE EQUIPPED WITH THE SAME
To provide a control device for a work machine capable of suppressing a decrease in work efficiency caused by an increase in the load on one actuator in work in which two actuators are operated simultaneously, and a work machine equipped with the same.SOLUTION: By using a target flow rate of hydraulic oil to a first actuator 11 according to a first operation and a target flow rate of hydraulic oil to a second actuator 12 according to a second operation, a controller 50 of a control device calculates a target value of an output-related value regarding an output of a pump 10, and performs ratio control when the target value exceeds an upper limit value. Ratio control is a control that adjusts the output-related value below the upper limit value by making a correction to reduce the target flow rate to a large load actuator, and increases the ratio of the target flow rate to a small load actuator to the target flow rate to the large load actuator compared to before modification when one of the first actuator 11 and the second actuator 12 is the large load actuator with a relatively large load and the other is the small load actuator with a relatively small load.SELECTED DRAWING: Figure 5
【課題】２つの作動器を同時に作動させる作業において一方の作動器の負荷が高くなることに起因する作業効率の低下を抑制できる作業機械の制御装置及びこれを備えた作業機械を提供する。【解決手段】制御装置のコントローラ５０は、第１操作に応じた第１作動器１１への作動油の目標流量と第２操作に応じた第２作動器１２への作動油の目標流量とを用いてポンプ１０の出力に関する出力関連値の目標値を演算し、目標値が上限値を超える場合に比率制御を行う。比率制御は、第１作動器１１及び第２作動器１２の一方が相対的に負荷が大きい大負荷作動器であって他方が相対的に負荷が小さい小負荷作動器である場合に、大負荷作動器への目標流量を減らす修正を行うことにより出力関連値を上限値以下に調節しながら大負荷作動器への目標流量に対する小負荷作動器への目標流量の比率を修正前に比べて大きくする制御である。【選択図】図５
CONTROL DEVICE FOR WORK MACHINE AND WORK MACHINE EQUIPPED WITH THE SAME
To provide a control device for a work machine capable of suppressing a decrease in work efficiency caused by an increase in the load on one actuator in work in which two actuators are operated simultaneously, and a work machine equipped with the same.SOLUTION: By using a target flow rate of hydraulic oil to a first actuator 11 according to a first operation and a target flow rate of hydraulic oil to a second actuator 12 according to a second operation, a controller 50 of a control device calculates a target value of an output-related value regarding an output of a pump 10, and performs ratio control when the target value exceeds an upper limit value. Ratio control is a control that adjusts the output-related value below the upper limit value by making a correction to reduce the target flow rate to a large load actuator, and increases the ratio of the target flow rate to a small load actuator to the target flow rate to the large load actuator compared to before modification when one of the first actuator 11 and the second actuator 12 is the large load actuator with a relatively large load and the other is the small load actuator with a relatively small load.SELECTED DRAWING: Figure 5
【課題】２つの作動器を同時に作動させる作業において一方の作動器の負荷が高くなることに起因する作業効率の低下を抑制できる作業機械の制御装置及びこれを備えた作業機械を提供する。【解決手段】制御装置のコントローラ５０は、第１操作に応じた第１作動器１１への作動油の目標流量と第２操作に応じた第２作動器１２への作動油の目標流量とを用いてポンプ１０の出力に関する出力関連値の目標値を演算し、目標値が上限値を超える場合に比率制御を行う。比率制御は、第１作動器１１及び第２作動器１２の一方が相対的に負荷が大きい大負荷作動器であって他方が相対的に負荷が小さい小負荷作動器である場合に、大負荷作動器への目標流量を減らす修正を行うことにより出力関連値を上限値以下に調節しながら大負荷作動器への目標流量に対する小負荷作動器への目標流量の比率を修正前に比べて大きくする制御である。【選択図】図５
CONTROL DEVICE FOR WORK MACHINE AND WORK MACHINE EQUIPPED WITH THE SAME
作業機械の制御装置及びこれを備えた作業機械
KAWAMOTO MASAHIRO (author) / FUJITA YUICHIRO (author) / KOIWAI KAZUSHIGE (author) / YUZUMOTO NATSUKI (author)
2024-03-29
Patent
Electronic Resource
Japanese
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