Invention Grant
US08804267B2 Disk drive predicting spindle motor failure by evaluating current draw relative to temperature
有权
磁盘驱动器通过评估相对于温度的电流消耗来预测主轴电机故障
- Patent Title: Disk drive predicting spindle motor failure by evaluating current draw relative to temperature
- Patent Title (中): 磁盘驱动器通过评估相对于温度的电流消耗来预测主轴电机故障
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Application No.: US13671487Application Date: 2012-11-07
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Publication No.: US08804267B2Publication Date: 2014-08-12
- Inventor: Yanan Huang , Chuanwen Ji , Duc T. Phan , Chui Lyn Cheong
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Main IPC: G11B19/20
- IPC: G11B19/20
Abstract:
A disk drive is disclosed comprising a head actuated over a disk, and a spindle motor operable to rotate the disk. A baseline relationship is generated between a baseline current draw of the spindle motor over a temperature range. An operating current draw of the spindle motor is measured and a corresponding operating temperature is measured. Failure of the spindle motor is predicted based on the operating current draw, the operating temperature, and the baseline relationship.
Public/Granted literature
- US20140126081A1 DISK DRIVE PREDICTING SPINDLE MOTOR FAILURE BY EVALUATING CURRENT DRAW RELATIVE TO TEMPERATURE Public/Granted day:2014-05-08
Information query
IPC分类:
