Title:
電動式油圧作業機械
Document Type and Number:
Japanese Patent JP7451828
Kind Code:
B2
Abstract:
This electric hydraulic work machine comprises a BMU and a power feed port as an abnormality detection device that detects an abnormality in a battery and a commercial power source (a plurality of power sources) and stops the supply of power from the abnormal power source in which the abnormality has been detected. A vehicle body controller and an inverter controller as a control device that controls a hydraulic pump and an electric motor calculate a maximum suppliable power that is a total value of power suppliable from each of the plurality of power sources excluding the abnormal power source, and limit the hydraulic output of the hydraulic pump such that the power consumption of the electric motor and the inverter does not exceed the maximum suppliable power that is the calculation result.
Inventors:
Akira Watanabe
Manabu Yano
Ken Takeuchi
Yasunori Ohta
Yuusuke Imai
Manabu Yano
Ken Takeuchi
Yasunori Ohta
Yuusuke Imai
Application Number:
JP2023549615A
Publication Date:
March 18, 2024
Filing Date:
March 31, 2022
Export Citation:
Assignee:
Hitachi Construction Machinery Co., Ltd.
International Classes:
E02F9/20; B60L3/04; B60L50/60; B60L50/70; B60L58/10; B60L58/30; E02F9/00
Domestic Patent References:
| JP2009084838A | ||||
| JP2019004560A | ||||
| JP2016045858A | ||||
| JP2011184922A | ||||
| JP2021052561A |
Attorney, Agent or Firm:
Patent Attorney Corporation Kaichi
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