Method and system for controlling an air mass flow in an aircraft
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United States of America Patent
Stats
-
Apr 8, 2003
Grant Date -
Jul 12, 2001
app pub date -
Jan 11, 2001
filing date -
Jan 11, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An air mass or volume flow in an aircraft is controlled in a closed loop control system. A controllable air distribution network is formed by pipes, ducts, valves, fans, a fresh air supply and climate packs. The generation of a closed loop control signal is based on a continuous recalculation or updating of rated performance characteristic data with regard to current pressure, temperature and altitude data. The updated data are compared with actually measured current data to produce the control signal. The rated performance characteristic data are stored in a memory connected to a corrected (32) which also receives the current data. The sensing ascertains one or more temperature, pressure, altitude and flow volume data to Provide current actually measured data which are then compared with the updated data for generating the closed loop control signal for at least certain of the valves, fans, and fresh air supply.
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