Patent ID: 11932404
Assignee: HONEYWELL INTERNATIONAL INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 8:
9. A method to control an on-board oxygen generating system, the method comprising:
receiving at least one input signal from at least one sensor aboard an aircraft;
receiving at least one measurement signal from an oxygen sensor, wherein the at least one measurement signal represents an actual oxygen concentration of a product gas from at least two beds of a concentrator;
determining, using open loop control, a predicted oxygen concentration of the product gas from the at least two beds based on the at least one input signal, each of the at least two beds having a valve to pneumatically couple the bed between a supply gas source and a vent;
determining an error correction factor based on a difference between the predicted oxygen concentration and the actual oxygen concentration; and
sending one or more control signals to control the valves of the at least two beds based on the predicted oxygen concentration and the error correction factor to adjust charge/vent ratios of the at least two beds.