Honeywell International Inc.

David Buck

Darrell Horner

Gerard McCoy

Robert William Olson

Shawn Barber

Gerard Mccoy

A cabin pressure control system comprising an automatic motor controller (AMC); and a manual motor controller (MMC) that comprises a motor configured to regulate cabin pressure; a cabin pressure sensor configured to determine a first set of cabin pressure data; a differential pressure sensor comprising first and second ports, the first port configured to obtain a second set of cabin pressure data and the second port configured to obtain a first set of ambient pressure data; processing circuitry coupled to the cabin pressure sensor and to the differential pressure sensor, the processing circuitry configured to receive the first set of cabin pressure data; determine a first set of differential pressure data, the first set of differential pressure data relating the second set of cabin pressure data with the first set of ambient pressure data; disable the AMC; and control the motor to regulate the cabin pressure.

Cabin pressure control system

A cabin pressure control and monitoring system includes an outflow valve and a manual control panel comprising a selector switch and configured to generate a signal, wherein a value encoded in the signal is dependent on a position of the selector switch. The cabin pressure control and monitoring system also includes a controller configured to receive the signal from the manual control panel, determine a target rate of change for a cabin pressure based on the value encoded in the signal, and control the outflow valve based on the target rate of change.

Cabin pressure control system with selection of rate of change

The disclosure is directed to an independent manual control system of an all-electric cabin pressure control system (CPCS). The manual control system may include a momentary electrical switch to manually set the position of an outflow valve (OFV) along with a closed loop control to hold the cabin pressure at the pressure setpoint. The closed loop control of the manual control system is independent from the automatic pressure control functions of the all-electric CPCS.

Growing community of inventors

Oro Valley, AZ, United States of America

David Buck