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Title:
HYBRID CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/208405
Kind Code:
A1
Abstract:
When state of charge SOC and current square integration ratio Risc are within an allowable range, a generator-motor required output calculation part (40) of a hybrid control unit (HCU) (36) requests a power storage device (31) to generate an output in such a manner that the state of charge SOC and the current square integration ratio Risc do not deviate from the allowable range. When the state of charge SOC has exceeded the allowable range and deviated from a target value SOC0, the generator-motor required output calculation part (40) allows the current square integration ratio Risc to deviate from an intermediate value Risc0, and requests the power storage device (31) to generate the output in such a manner that the state of charge SOC approaches the target value SOC0. When the current square integration ratio Risc has exceeded the allowable range and deviated from the intermediate value Risc0, the generator-motor required output calculation part (40) allows the state of charge SOC to deviate from the target value SOC0, and requests the power storage device (31) to generate the output in such a manner that the current square integration ratio Risc approaches the intermediate value Risc0.

Inventors:
HITA Masafumi (Hitachi Construction Machinery Co. Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
IMURA Shinya (Hitachi Construction Machinery Co. Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
Application Number:
JP2016/066279
Publication Date:
December 07, 2017
Filing Date:
June 01, 2016
Export Citation:
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Assignee:
HITACHI CONSTRUCTION MACHINERY CO., LTD. (16-1, Higashiueno 2-chome Taito-k, Tokyo 15, 〒1100015, JP)
International Classes:
H02J7/00; B60L11/18; B60W10/26; H01M10/44; H01M10/48
Attorney, Agent or Firm:
HIROSE Kazuhiko (4F. Nishishinjuku Koide Bldg, 1-3 Nishishinjuku 3-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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