Adaptive aircraft cabin pressure control system

Details Adaptive aircraft cabin pressure control system Adaptive aircraft cabin pressure control system

1992-11-27

1993-12-28

Wayner, William E.

Ventilation

Vehicle

Pressure regulation

2441185, 236 78D, B64D 1300

Patent

active

052734862

ABSTRACT:
An adaptive aircraft cabin pressure control system is disclosed that customizes basic ascent and descent schedules to accommodate variable requirements of specific airlines, the airlines' route structures, and regional air traffic control standards. The system includes an adaptive control logic that identifies a plurality of points generated by the schedules that define ascent and descent curves corresponding to anticipated cabin pressure change rates during ascent and descent. During aircraft flight, the logic samples and stores actual cabin pressure change rates at each of the plurality of points. After the flight, the actual cabin pressure change rates are averaged and the average rate is compared to the anticipated cabin pressure change rate at each point. An offset is then calculated representing the difference between the average actual rate and an anticipated rate, and the ascent and/or descent schedules are adapted by the offset to bring the anticipated cabin pressure change rates closer to the average actual rate. After several flights, the ascent and descent schedules are customized by the adaptive control logic to a particular airline's requirements.

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