DIAGNOSING A COOLING SUBSYSTEM OF AN ENGINE SYSTEM IN RESPONSE TO DYNAMIC PRESSURE SENSED IN THE SUBSYSTEM

摘要

A method of diagnosing a cooling subsystem of an engine system in response a parameter extracted from dynamic hydraulic pressure sensed in the cooling subsystem, and products and systems using same.

主权项

1. An engine system comprising: an engine;
a cooling subsystem coupled to the engine to cool at least a portion of the engine and including at least one hydraulic pressure sensor to sense dynamic hydraulic pressure in the cooling subsystem; and said cooling subsystem comprising a HT cooling subsystem and a LT cooling subsystem; and a control subsystem to extract a parameter from the sensed dynamic hydraulic pressure, and to evaluate the extracted parameter to diagnose a condition of the cooling subsystem.