US 12,454,360 B2Granted

Cabin pressure control system

AssigneeHoneywell International Inc.

InventorsDarrell W. Horner, David Buck, Shawn Barber

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Abstract

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.

Claims18

Dependent claims

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.

12 more elements

A method comprising:

receiving, by processing circuitry connectively coupled to a cabin pressure sensor and connectively coupled to a differential pressure sensor, a first set of cabin pressure data from a cabin pressure sensor located within a cabin of a vehicle;
determining, by the processing circuitry, a first set of differential pressure data directly from the differential pressure sensor, the 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, 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;
receiving, by the processing circuitry, 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;
comparing, by the processing circuitry, 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, determining, by the processing circuitry, one of the first set of differential pressure data is invalid;
disabling, by the processing circuitry, an automatic motor controller based on the first set of cabin pressure data that is not determined to be invalid;
and
controlling, by the processing circuitry, a motor in a cabin of the vehicle 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.

6 more elements

Dependencies are inferred from the claim text.