Failure diagnosis method for colling fan driving BLDC motor
PURPOSE: A method for diagnosing a BLDC motor driving type cooling fan is provided to accurately determine the normal operation of a cooling fan by measuring power or current consumed in the cooling fan. CONSTITUTION: A rotation of a cooling fan is confirmed(S140). A control step of the cooling fan...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | PURPOSE: A method for diagnosing a BLDC motor driving type cooling fan is provided to accurately determine the normal operation of a cooling fan by measuring power or current consumed in the cooling fan. CONSTITUTION: A rotation of a cooling fan is confirmed(S140). A control step of the cooling fan is confirmed(S160). A current consumed in the cooling fan is measured. The current consumed in the cooling fan is compared with a threshold current value(S170). If the measurement value of the current consumed in the cooling fan is smaller than a threshold current value, the fault of the cooling fan is diagnosed. |
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