Fault detection and response techniques

摘要

Systems and methods for detecting, predicting and/or responding to faults are disclosed. In one form, a sensor can be operatively coupled to an engine system having a component and a control system is coupled to the sensor. The sensor can be structured to monitor the engine system and generate corresponding sensor information. The control system can be structured to: generate an operational signature based on the sensor information, estimate whether a fault (e.g., a mechanical fault of the component and/or a performance fault of the engine system) exists based on the operational signature, determine an engine operating mode adjustment if the fault exists and output the engine operating mode adjustment to an output device. Systems and methods for increasing the accuracy by which faults are detected and/or predicted are also disclosed. The engine operating mode adjustment can be applied to protect engine system components from being undesirably damaged to faults.

主权项

1. A system comprising:
an engine system including a flywheel and a damper; a first sensor and a second sensor operatively coupled to the engine system, the first sensor and the second sensor being structured to generate sensor information regarding a torsional vibration difference between the flywheel and the damper; a control system coupled to the first sensor, the second sensor, and the engine system, the control system including a memory and a plurality of reference signatures for the flywheel and the damper stored in the memory that include reference information for the torsional vibration difference between the flywheel and the damper without a mechanical fault, the control system being configured to:
generate an operational signature of the flywheel and the damper based on the sensor information generated during operation of the engine system;update a reference signature of the flywheel and the damper, wherein the reference signature is selected from the plurality of reference signatures;compare the operational signature with the reference signature;estimate whether a fault exists within the engine system based on the comparison of the operational signature with the reference signature;determine an engine operating mode adjustment based on the operational signature if a fault is estimated to exist;output the engine operating mode adjustment to an output device; andoperate the engine system in response to the engine operation mode adjustment.