Invention Grant
- Patent Title: Controlling an electric motor by dynamic switching
- Patent Title (中): 通过动态切换控制电动机
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Application No.: US13099276Application Date: 2011-05-02
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Publication No.: US08446119B2Publication Date: 2013-05-21
- Inventor: Allen Keith Bates , Nhan Xuan Bui , Reed Alan Hancock , Wayne Isami Imaino , Daniel James Winarski
- Applicant: Allen Keith Bates , Nhan Xuan Bui , Reed Alan Hancock , Wayne Isami Imaino , Daniel James Winarski
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Griffiths & Seaton PLLC
- Main IPC: H02P23/00
- IPC: H02P23/00

Abstract:
An apparatus for controlling an electric motor is provided. A plurality of switches is provided for controlling a direction of current through motor coils of the electric motor. A brushless motor control circuit is connected to each of the plurality of switches. Responsive to a request to adjust one of an angular velocity and an angular acceleration of the electric motor, the plurality of switches are activated to place the motor coils in a predetermined configuration to maximize torque or reduce a total back electromotive force (BEMF) from the motor coils.
Public/Granted literature
- US20110205662A1 CONTROLLING AN ELECTRIC MOTOR BY DYNAMIC SWITCHING Public/Granted day:2011-08-25
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