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

Claim 13:
14. A controller for an on-board oxygen generating system, the controller comprising:
a valve control circuit configured to operate valves of at least two beds of a concentrator, each of the valves configured to pneumatically couple the corresponding bed between a supply gas source and a vent; and
control circuitry configured to:
receive at least one input signal from at least one sensor aboard an aircraft;
receive 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 the at least two beds;
determine, 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;
determine an error correction factor based on a difference between the predicted oxygen concentration and the actual oxygen concentration; and
control, via the valve control circuit, 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.