Title:
CONTROL DEVICE FOR AN ELECTRIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2011/145488
Kind Code:
A1
Abstract:
The disclosed control device (18) for an electric actuator controls an electric actuator that is capable of forward/backward-reversed operation. Said control device is provided with: an operation means (20) that can be operated in a forward direction and a backward direction in accordance with the forward/backward-reversed operation of the electric actuator (19); a pilot circuit (25) that is connected to the operation means (20) and generates forward pilot pressure or backward pilot pressure in accordance with the forward operation or backward operation of the operation means (20); a differential-pressure acquisition means that acquires the difference between pilot pressure in the direction the operation means (20) was operated and pilot pressure in the opposite direction; a control-command generation means (182) that generates a control command for the electric actuator (19) on the basis of the aforementioned generated differential pressure; and a drive control means (183) that, on the basis of the generated control command, controls the driving of the electric actuator (19).
Inventors:
TAKE Hiroaki (Development Division System Development Center, 3-25-1, Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
武 宏昭 (〒55 神奈川県平塚市四之宮３－２５－１ 株式会社小松製作所 開発本部 システム開発センタ内 Kanagawa, 〒2548555, JP)
KAWAGUCHI Tadashi (Development Division System Development Center, 3-25-1, Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
武 宏昭 (〒55 神奈川県平塚市四之宮３－２５－１ 株式会社小松製作所 開発本部 システム開発センタ内 Kanagawa, 〒2548555, JP)
KAWAGUCHI Tadashi (Development Division System Development Center, 3-25-1, Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
Application Number:
JP2011/060808
Publication Date:
November 24, 2011
Filing Date:
May 11, 2011
Export Citation:
Assignee:
KOMATSU LTD. (2-3-6, Akasaka Minato-k, Tokyo 14, 〒1078414, JP)
株式会社小松製作所 (〒14 東京都港区赤坂２丁目３番６号 Tokyo, 〒1078414, JP)
TAKE Hiroaki (Development Division System Development Center, 3-25-1, Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
武 宏昭 (〒55 神奈川県平塚市四之宮３－２５－１ 株式会社小松製作所 開発本部 システム開発センタ内 Kanagawa, 〒2548555, JP)
株式会社小松製作所 (〒14 東京都港区赤坂２丁目３番６号 Tokyo, 〒1078414, JP)
TAKE Hiroaki (Development Division System Development Center, 3-25-1, Shinomiya, Hiratsuka-sh, Kanagawa 55, 〒2548555, JP)
武 宏昭 (〒55 神奈川県平塚市四之宮３－２５－１ 株式会社小松製作所 開発本部 システム開発センタ内 Kanagawa, 〒2548555, JP)
International Classes:
F15B11/08; E02F9/20
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (3rd floor, Ogikubo TM building 26-13, Ogikubo 5-chome, Suginami-k, Tokyo 51, 〒1670051, JP)
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Claims: