发明授权
- 专利标题: Electric motor system and motor control method
- 专利标题(中): 电机系统及电机控制方式
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申请号: US13611746申请日: 2012-09-12
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公开(公告)号: US08928270B2公开(公告)日: 2015-01-06
- 发明人: Shogo Sakamoto , Takuya Murata , Takeo Seki , Hiroyuki Kiguchi
- 申请人: Shogo Sakamoto , Takuya Murata , Takeo Seki , Hiroyuki Kiguchi
- 申请人地址: JP Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 优先权: JP2011-209306 20110926; JP2011-236267 20111027
- 主分类号: G05B11/42
- IPC分类号: G05B11/42 ; G03G15/00 ; G05B11/18 ; G03G21/16
摘要:
An electric motor system includes a brushless direct-current motor, a driver circuit, a position sensor, and a control circuit. The motor has an output shaft for transmitting torque. The driver circuit supplies power to the motor according to a control signal input thereto. The position sensor measures an angular, rotational position of the motor shaft. The control circuit controls operation of the motor. The control circuit includes a position sensor terminal, a reference terminal, a differential calculator, a controller, and a gain adjuster. The position sensor terminal receives a feedback signal. The reference terminal receives a reference signal. The differential calculator generates an error signal representing a difference between the measured and targeted rotational positions. The controller generates the control signal based on the error signal through a combination of control actions. The gain adjuster is connected to the controller to adjust a gain of each control action.
公开/授权文献
- US20130078021A1 ELECTRIC MOTOR SYSTEM AND MOTOR CONTROL METHOD 公开/授权日:2013-03-28