Fault detection and response techniques

A method, comprising:

• powering operation of an engine system including a flywheel and a damper;
• receiving, at a controller, sensor information regarding a torsional vibration difference between the flywheel and the damper from a first sensor and a second sensor operatively coupled to the engine system;
• generating, with the controller, an operational signature of the flywheel and the damper based on the sensor information;
• selecting, from a memory of the controller, a reference signature from a plurality of reference signatures for the flywheel and the damper that each include reference information for the torsional vibration difference corresponding to the engine system operating without a mechanical fault;
• updating, with the controller, the selected reference signature of the flywheel and the damper;
• estimating whether the engine system has a mechanical fault based on a comparison of the operational signature with the selected reference signature;
• determining an engine operation mode adjustment if the component is estimated to have a mechanical fault;
• and
• operating the engine system in response to the engine operation mode adjustment.

A method, comprising:

• powering operation of a system with an internal combustion engine;
• during the operation of the system, monitoring a torsional vibration difference between a flywheel and a damper of the internal combustion engine;
• generating an operational signature based on the torsional vibration difference;
• selecting a reference signature from a plurality of reference signatures for the flywheel and the damper, wherein each reference signature includes reference information for the torsional vibration difference corresponding to the internal combustion engine operating without a mechanical fault;
• with the system, updating the selected reference signature of the flywheel and the damper based on;
• with the system, performing a comparison of the operational signature to the updated reference signature;
• determining whether the internal combustion engine has a mechanical fault as a function of the comparison;
• determining an estimated severity of the mechanical fault based on the comparison;
• providing, based on the estimated severity, one of a warning signal to display on an output device and a power output level reduction signal to the internal combustion engine;
• and
• operating the engine system in response to the engine operation mode adjustment.

A system, comprising:

• an electronic controller operably coupled to an engine system including a damper and a flywheel, the electronic controller being structured to receive sensor information regarding a torsional vibration difference between the damper and the flywheel from a first sensor and a second sensor operatively coupled to the engine system to determine a control signal, and to provide the control signal to the engine system;
• and
• the electronic controller including a memory and one or more corresponding reference signatures for the damper and flywheel stored in the memory that includes reference information for the torsional vibration difference corresponding to the operation of the engine system without a mechanical fault, the electronic controller further being configured to:
• generate an operational signature of the flywheel and the damper based on the sensor information;
• update the one or more corresponding reference signatures of the flywheel and the damper;
• compare the operational signature with the one or more corresponding reference signatures;
• estimate whether the engine system has a mechanical fault based on the comparison of the operational signature with the one or more corresponding reference signatures;
• determine an engine operating mode adjustment based on the operational signature if the engine system is estimated to have a mechanical fault;
• output the engine operating mode adjustment,
• wherein the control signal is based on the engine operating mode adjustment;
• and
• operate the engine system in response to the engine operation mode adjustment.