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A MONITORING SYSTEM, METHOD AND VEHICLE COMPRISING SUCH A SYSTEM, FOR DETECTING CLOGGING THROUGH FOULING OF AN AIR FILTER OF AN INTERNAL COMBUSTION ENGINE.
A MONITORING SYSTEM, METHOD AND VEHICLE COMPRISING SUCH A SYSTEM, FOR DETECTING CLOGGING THROUGH FOULING OF AN AIR FILTER OF AN INTERNAL COMBUSTION ENGINE.
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机译:一种监测系统,方法和车辆,包括这种系统,用于通过内燃机的空气过滤器的空气过滤器来检测堵塞。
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摘要
A monitoring system and method for detecting clogging through fouling of an air filter (3) of an internal combustion engine (5) comprising a differential pressure sensor means (7) for determining a differential pressure between an ambient environment and a position directly downstream of the air inlet filter. The system further comprising at least one exhaust flow sensor means (9) for determining the exhaust flow, and a controller (13) which is communicatively connected to each of the sensor means for processing information therefrom. The controller is arranged for determining a first filter resistance coefficient based on, at least, a measurement of the differential pressure, and the exhaust flow. The system is arranged for, using the controller, to calculate a second filter coefficient based on the historic evolution of the first filter coefficient, the controller further arranged for comparing the second filter coefficient to a boundary value, and generating a clogging alarm signal when the second filter coefficient exceeds said boundary value.
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