Fault detection method and device for pulsation damper and engine control system
The invention discloses a fault detection method and device for a pulsation damper and an engine control system, and the pulsation damper is connected with a fuel inlet pipeline of an engine. The rotating speed and the air inlet pressure of the engine and the first preset oil pressure change rate an...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a fault detection method and device for a pulsation damper and an engine control system, and the pulsation damper is connected with a fuel inlet pipeline of an engine. The rotating speed and the air inlet pressure of the engine and the first preset oil pressure change rate and the second preset oil pressure change rate of fuel oil pressure in front of a fuel oil inlet are obtained; the second preset oil pressure change rate is smaller than the first preset oil pressure change rate; determining the running state of the engine according to the rotating speed and the intake pressure; when the running state is determined to be the stable running state, the fault of the pulsation damper is detected according to the fuel pressure, the first preset oil pressure change rate and the second preset oil pressure change rate, the fault detection efficiency and accuracy of the pulsation damper can be effectively improved, and therefore the fault of the pulsation damper can be effectively detected wh |
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