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Patent Searching and Data


Title:
ROLLING ROLL MOTOR DRIVER
Document Type and Number:
WIPO Patent Application WO/2008/015747
Kind Code:
A1
Abstract:
A rolling roll motor driver enabling maximization of rolling ability and improvement of the amount of speed drop by making most of the torques which the motors can output when a material is bitten. The driver comprises an upper motor speed controller for acquiring an upper motor torque current reference from the difference between the upper motor actual rotational speed and an upper motor speed reference, an upper motor torque current limiter and a current controller for controlling the torque of the upper motor, a lower motor rotational speed controller for acquiring a lower motor torque current reference from the difference between the lower motor actual rotational speed and a lower motor rotational speed reference, a lower motor torque current limiter and a current controller for controlling the torque of the lower motor, and a torque distribution control section which is provided between the upper and lower motor rotational speed controllers and the upper and lower motor torque current limiters, compares the upper and lower motor torque current references with the torque current limit value, and adds, if the upper or lower torque current reference exceeds the torque current limit value, the excess amount to the other torque current reference.

Inventors:
MORI, Ryuzo (13-16 Mita 3-chome Minato-k, Tokyo 73, 1080073, JP)
森 隆三 (〒73 東京都港区三田三丁目13番16号 東芝三菱電機産業システム株式会社内 Tokyo, 1080073, JP)
FUKUSHIMA, Wataru (13-16 Mita 3-chome Minato-k, Tokyo 73, 1080073, JP)
福島 航 (〒73 東京都港区三田三丁目13番16号 東芝三菱電機産業システム株式会社内 Tokyo, 1080073, JP)
Application Number:
JP2006/315387
Publication Date:
February 07, 2008
Filing Date:
August 03, 2006
Export Citation:
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Assignee:
TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION (13-16 Mita 3-chome, Minato-ku Tokyo, 73, 1080073, JP)
東芝三菱電機産業システム株式会社 (〒73 東京都港区三田三丁目13番16号 Tokyo, 1080073, JP)
MORI, Ryuzo (13-16 Mita 3-chome Minato-k, Tokyo 73, 1080073, JP)
森 隆三 (〒73 東京都港区三田三丁目13番16号 東芝三菱電機産業システム株式会社内 Tokyo, 1080073, JP)
FUKUSHIMA, Wataru (13-16 Mita 3-chome Minato-k, Tokyo 73, 1080073, JP)
International Classes:
B21B37/00; H02P5/00
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (Takada, Takahashi & Partners 5th Floor, Intec 88Bldg., 20, Araki-ch, Shinjuku-ku Tokyo 07, 1600007, JP)
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