Invention Grant
- Patent Title: Method and apparatus for low speed permanent magnet motor operation
- Patent Title (中): 低速永磁电机运行方法及装置
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Application No.: US12558291Application Date: 2009-09-11
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Publication No.: US08339081B2Publication Date: 2012-12-25
- Inventor: Nitinkumar R. Patel , Yo Chan Son
- Applicant: Nitinkumar R. Patel , Yo Chan Son
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Main IPC: H02P6/18
- IPC: H02P6/18
Abstract:
Methods and apparatus are provided for startup of a permanent magnet alternating current (AC) motor. The method comprises the steps of detecting startup of the permanent magnet AC motor; detecting a mechanical oscillation of the permanent magnet AC motor when startup of the permanent magnet AC motor is detected; and, in response to detection of the mechanical oscillation of the permanent magnet AC motor when startup is detected, suppressing the mechanical oscillation of the permanent magnet AC motor.
Public/Granted literature
- US20110062902A1 METHOD AND APPARATUS FOR LOW SPEED PERMANENT MAGNET MOTOR OPERATION Public/Granted day:2011-03-17
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