Patent ID: 11859626
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Control (Instruments)
Classification: CPC F  G | IPC F  G

Claim 10:
11. A cabin air conditioning and temperature control system comprising:
a cabin air compressor;
a vibration sensor associated with the cabin air compressor;
a microcontroller comprising:
a memory storing a machine learning model and computer readable instructions, wherein the machine learning model is trained to detect incipient compressor surge events for the cabin air compressor, and
a processing device for executing the computer readable instructions, the computer readable instructions controlling the processing device to perform operations comprising:
receiving operating data from the vibration sensor;
generating, using the operating data, an operating spectrogram;
detecting an incipient compressor surge event by applying the machine learning model to the operating spectrogram; and
implementing a corrective action to correct the incipient compressor surge event to increase a surge margin of the cabin air compressor by changing operation of one of: a variable diffuser, an anti-surge valve, an air cycle machine bypass valve (ABV).