Title:
HYBRID CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2012/011504
Kind Code:
A1
Abstract:
A hybrid construction machine which uses an electric motor to drive a slewing structure, wherein the occurrence of a situation in which the torque of the electric motor cannot be generated due to the energy shortage, overcharge state, and the like of an electric storage device is suppressed.
The hybrid construction machine is provided with a manual slewing mode switching switch (77) which commands switching between a hydraulic/electric-combined slewing mode in which both an electric motor (25) and a hydraulic motor (27) are driven to drive a slewing structure (20) and a hydraulic-alone slewing mode in which the hydraulic motor (27) alone is driven to drive the slewing structure (20). In a normal operation, the hydraulic/electric-combined slewing mode is initially set. In a specific operation, an operator switches the slewing mode switching switch (77) from a hydraulic/electric-combined slewing position to hydraulic-alone slewing. An input control block (86) outputs a command signal to a control switching block (85), and the control switching block (85) selects a hydraulic-alone slewing control block (84).
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Inventors:
NISHIKAWA Shinji (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
西川 真司 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
HIROKI Takenori (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
廣木 武則 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
ISHIKAWA Kouji (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
石川 広二 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
西川 真司 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
HIROKI Takenori (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
廣木 武則 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
ISHIKAWA Kouji (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
石川 広二 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
Application Number:
JP2011/066483
Publication Date:
January 26, 2012
Filing Date:
July 20, 2011
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY CO., LTD. (5-1 Koraku 2-chome, Bunkyo-ku Tokyo, 63, 〒1128563, JP)
日立建機株式会社 (〒63 東京都文京区後楽二丁目５番１号 Tokyo, 〒1128563, JP)
NISHIKAWA Shinji (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
西川 真司 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
HIROKI Takenori (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
廣木 武則 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
ISHIKAWA Kouji (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
日立建機株式会社 (〒63 東京都文京区後楽二丁目５番１号 Tokyo, 〒1128563, JP)
NISHIKAWA Shinji (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
西川 真司 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
HIROKI Takenori (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
廣木 武則 (〒13 茨城県土浦市神立町６５０番地 日立建機株式会社土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
ISHIKAWA Kouji (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
International Classes:
E02F9/20; E02F9/22
Attorney, Agent or Firm:
KASUGA Yuzuru (Torii-nihonbashi Bldg, 4-1 Nihonbashi-honcho 3-chome, Chuo-k, Tokyo 23, 〒1030023, JP)
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