Invention Grant
- Patent Title: Method of diagnosing a malfunctioning DC fan motor
- Patent Title (中): 诊断故障直流风扇电机的方法
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Application No.: US14472865Application Date: 2014-08-29
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Publication No.: US09337769B2Publication Date: 2016-05-10
- Inventor: Jean-Philippe Gauthier
- Applicant: Atieva, Inc.
- Applicant Address: US CA Menlo Park
- Assignee: ATIEVA, INC.
- Current Assignee: ATIEVA, INC.
- Current Assignee Address: US CA Menlo Park
- Agency: Patent Law Office of David G. Beck
- Main IPC: H02P29/02
- IPC: H02P29/02
Abstract:
A method of diagnosing DC fan motor performance is provided in which normal operation of the motor is periodically and temporarily suspended in order to verify that the motor is operating within an acceptable performance range. When normal fan motor operation is suspended, the back EMF of the motor is used to determine (i) whether the motor is seized and/or (ii) whether the rate of deceleration after interrupting power to the motor is indicative of a failing motor.
Public/Granted literature
- US20160065113A1 Method of Diagnosing a Malfunctioning DC Fan Motor Public/Granted day:2016-03-03
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