Title:
WORK MACHINE DRIVE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/086888
Kind Code:
A1
Abstract:
A work machine drive control device drives a structural body by means of a hydraulic motor (2) and an electric motor (3), and is provided with: a remote control valve (5) which determines the operation amount of the structural body; an electric motor torque calculation unit which calculates the torque of the electric motor (3); a hydraulic motor torque calculation unit which calculates the torque of the hydraulic motor (2); a control device (7) which, on the basis of the operation amount of the structural body determined in the aforementioned remote control valve (5), transmits an opening degree control signal to a control valve (14) such that the torque necessary to drive the structural body is obtained from the torque of the aforementioned electric motor (3) and the torque of the aforementioned hydraulic motor (2); and solenoid pressure reduction valves (19, 20) which reduce the pilot pressure acting on the aforementioned control valve (14) on the basis of the opening degree control signal from the control device (7).
Inventors:
YAMAMOTO, Ryo (())
山本 良 (())
YAMADA, Masahiro (())
山本 良 (())
YAMADA, Masahiro (())
Application Number:
JP2011/000072
Publication Date:
July 21, 2011
Filing Date:
January 11, 2011
Export Citation:
Assignee:
KAWASAKI JUKOGYO KABUSHIKI KAISHA (1-1 Higashikawasaki-cho 3-chome, Chuo-ku Kobe-sh, Hyogo 70, 〒6508670, JP)
川崎重工業株式会社 (〒70 兵庫県神戸市中央区東川崎町３丁目１番１号 Hyogo, 〒6508670, JP)
YAMAMOTO, Ryo (())
山本 良 (())
川崎重工業株式会社 (〒70 兵庫県神戸市中央区東川崎町３丁目１番１号 Hyogo, 〒6508670, JP)
YAMAMOTO, Ryo (())
山本 良 (())
International Classes:
E02F9/20; E02F9/22; F15B21/14
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (3rd Fl, Bo-eki Bldg. 123-1 Higashimachi, Chuo-ku, Kobe-sh, Hyogo 31, 〒6500031, JP)
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Claims:
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