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

Claim 0:
1. An on-board oxygen generating system comprising:
a concentrator comprising at least two beds, each bed comprising a valve to pneumatically couple the 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 indicates 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 indicated by the at least one measurement signal; and
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.