Title:
ELECTRIC HYDRAULIC WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/188355
Kind Code:
A1
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:
WATANABE AKIRA (JP)
YANO MANABU (JP)
TAKEUCHI KEN (JP)
OTA YASUNORI (JP)
IMAI YUSUKE (JP)
YANO MANABU (JP)
TAKEUCHI KEN (JP)
OTA YASUNORI (JP)
IMAI YUSUKE (JP)
Application Number:
PCT/JP2022/016777
Publication Date:
October 05, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
E02F9/20
Foreign References:
| JP2009084838A | 2009-04-23 | |||
| JP2019004560A | 2019-01-10 | |||
| JP2016045858A | 2016-04-04 | |||
| JP2011184922A | 2011-09-22 | |||
| JP2021052561A | 2021-04-01 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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