Monitoring method and monitoring device of fuel filter and engine
The invention provides a fuel filter monitoring method and device and an engine, and the monitoring method comprises the steps that a first fuel filter is controlled to be opened, a second fuel filter is controlled to be closed, and oil output by an oil inlet pipeline only enters the first fuel filt...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a fuel filter monitoring method and device and an engine, and the monitoring method comprises the steps that a first fuel filter is controlled to be opened, a second fuel filter is controlled to be closed, and oil output by an oil inlet pipeline only enters the first fuel filter to be filtered; the first current pressure difference of the first fuel filter is obtained, wherein the first current pressure difference is the difference value between the oil pressure of an oil inlet of the first fuel filter and the oil pressure of an oil outlet of the first fuel filter at the current moment; under the condition that the first current pressure difference is not within the normal oil pressure difference range, it is determined that the first fuel filter is abnormal, the second fuel filter is controlled to be opened, and the first fuel filter is controlled to be closed, so that oil output by the oil inlet pipeline only enters the second fuel filter to be filtered; the normal oil pressure differ |
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