Work equipment

JP7662494B2Active Publication Date: 2025-04-15KUBOTA CORP
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Patent Information

Application Number
JP2021188671
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-19
Publication Date
2025-04-15
Estimated Expiration
2041-11-19

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Patent Text Reader

Abstract

To achieve both securing of drive time by a motor and work efficiency.SOLUTION: A work machine includes: an engine; a motor generator; a battery capable of storing power generated by the motor generator; a stored-power measurement device capable of detecting a stored power amount of the battery and capable of detecting an increase and decrease in the stored power amount of the battery; an inverter that controls a rotation speed of the motor generator; and a control device that controls the motor generator to operate. The control device can change an output upper limit value that is set with respect to an output of the motor generator, and controls the inverter so as not to exceed the output upper limit value.SELECTED DRAWING: Figure 13
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Citation Information

Patent Citations

  • Control circuit for oil-pressure shovel

    JP1988093936A

  • Operation drive device of two-piece boom type work machine

    JP1998037232A

  • Loader work machine

    JP2010059734A

  • Work machine

    JP2014148879A

  • Hybrid working machine

    JP2015206193A