System and method for predicting failure of a cylinder in a multi-cylinder engine

A system for predicting failure of a cylinder in an engine having a plurality of cylinders, the system comprising:

• a plurality of pressure sensors, each pressure sensor of the plurality of pressure sensors corresponding uniquely to a cylinder of the plurality of cylinders;
• and
• a controller communicably coupled to the plurality of pressure sensors, the controller being configured to
• receive a signal from each pressure sensor indicative of a cylinder pressure in the corresponding cylinder of the plurality of cylinders,
• identify whether there is a non-fueling interval in a cylinder from the plurality of cylinders,
• determine at least one of an indicated mean effective pressure, a peak cylinder pressure, a total heat released, and a total duration of heat released from the cylinder pressure over a complete combustion cycle for the cylinder in which the non-fueling interval is identified,
• compare at least one of the indicated mean effective pressure, the peak cylinder pressure, the total heat released, and the total duration of heat released of the identified cylinder to a corresponding predefined threshold value,
• determine whether at least one of the indicated mean effective pressure, the peak cylinder pressure, the total heat released, and the total duration of heat released of the identified cylinder exceeds the corresponding predefined threshold value, and
• generate a signal indicating impending failure of the identified cylinder when at least one of the indicated mean effective pressure, the peak cylinder pressure, the total heat released, and the total duration of heat released of the identified cylinder exceeds the corresponding predefined threshold value.

A dual fuel engine system comprising:

• an engine having a plurality of cylinders;
• a plurality of pressure sensors, each pressure sensor of the plurality of pressure sensors being uniquely associated with a cylinder of the plurality of cylinders;
• and
• a controller communicably coupled to each of the pressure sensors, the controller being configured to
• receive a signal from each pressure sensor indicative of a cylinder pressure in a corresponding cylinder of the plurality of cylinders,
• identify whether there is a non-fueling interval in a cylinder from the plurality of cylinders,
• determine at least one of an indicated mean effective pressure, a peak cylinder pressure, a total heat released, and a total duration of heat released from the cylinder pressure over a complete combustion cycle for the cylinder in which the non-fueling interval is identified,
• compare at least one of the indicated mean effective pressure, the peak cylinder pressure, the total heat released, and the total duration of heat released of the identified cylinder to a corresponding predefined threshold value,
• determine whether at least one of the indicated mean effective pressure, the peak cylinder pressure, the total heat released, and the total duration of heat released of the identified cylinder exceeds the corresponding predefined threshold value, and
• generate a signal indicating impending failure of the identified cylinder, when at least one of the indicated mean effective pressure, the peak cylinder pressure, the total heat released, and the total duration of heat released of the identified cylinder exceeds the corresponding predefined threshold value.