US 12,454,360 B2
Cabin pressure control system
Darrell W. Horner, Oro Valley, AZ (US); David Buck, Oro Valley, AZ (US); and Shawn Barber, Tucson, AZ (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Nov. 2, 2022, as Appl. No. 18/052,084.
Prior Publication US 2024/0140608 A1, May 2, 2024
Int. Cl. B64D 13/04 (2006.01)
CPC B64D 13/04 (2013.01) 18 Claims
OG exemplary drawing
 
1. A cabin pressure control system for a vehicle, the cabin pressure control system comprising:
an automatic motor controller system; and
a manual motor controller (MMC) system, the MMC system comprising:
a motor configured to regulate a cabin pressure in a cabin of the vehicle;
a cabin pressure sensor configured to determine a first set of cabin pressure data;
a differential pressure sensor comprising a first port and a second port, each of the first and second ports configured to determine a pressure at a different location of the vehicle, 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 connectively coupled to the cabin pressure sensor and connectively coupled to the differential pressure sensor, the processing circuitry configured to:
receive the first set of cabin pressure data from the cabin pressure sensor;
determine a first set of differential pressure data directly from the differential pressure sensor, the first set of differential pressure data being a relation between the second set of cabin pressure data and the first set of ambient pressure data;
receive the first set of differential pressure data from a sensor microcontroller unit (MCU) connectively coupled to the differential pressure sensor, wherein the sensor MCU is separate from the processing circuitry;
compare the first set of differential pressure data determined directly from the differential pressure sensor to the first set of differential pressure data received from the sensor MCU;
responsive to a comparison of the first set of differential pressure data determined directly from the differential pressure sensor to the first set of differential pressure data received from the sensor MCU not satisfying a threshold, determine one of the first set of differential pressure data is invalid;
disable the automatic motor controller based on the first set of differential pressure data that is not determined to be invalid; and
control the motor to regulate the cabin pressure in the cabin of the vehicle based on the first set of differential pressure data that is not determined to be invalid.