Invention Grant
- Patent Title: Electric work vehicle
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Application No.: US15833034Application Date: 2017-12-06
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Publication No.: US10821854B2Publication Date: 2020-11-03
- Inventor: Hirokazu Ito , Yasuhiro Manji
- Applicant: Kubota Corporation
- Applicant Address: JP Osaka
- Assignee: Kubota Corporation
- Current Assignee: Kubota Corporation
- Current Assignee Address: JP Osaka
- Agency: The Webb Law Firm
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6dc34c59
- Main IPC: B60L1/00
- IPC: B60L1/00 ; B62D11/04 ; A01D34/00 ; A01D34/66 ; A01D34/78 ; A01D69/02 ; B60L58/15 ; B60L7/10 ; B60L7/00 ; B60L15/02 ; B60L7/22 ; B60L11/18 ; A01D101/00 ; B60L7/16

Abstract:
An electric work vehicle includes: an electric motor unit including a plurality of motors (21, 22, and 130); a motor control unit (50) that adjusts electric power from a battery (20) and supplies the adjusted electric power to the electric motor unit by controlling an inverter (4); a charge control section (53) that controls charging and discharging of the battery (20); a battery state detection device (9) that detects a state of the battery (20) including a rate of charge; and a regenerative electric power detection device (6) that detects a generation of regenerative electric power. When the rate of charge is in a margin region that is set between an overcharge region and a charge/discharge region, and when regenerative electric power is generated, the motor control unit (50) supplies the regenerative electric power to a motor that is not in operation, and provides a non-rotation current instruction to the inverter (4), the non-rotation current instruction being an instruction for generating a magnetic flux that does not cause the motor to rotate by using vector control.
Public/Granted literature
- US20180326860A1 Electric Work Vehicle Public/Granted day:2018-11-15
Information query
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