Distributed electronic control for air conditionioning system

摘要

An electronic control for an air conditioning system is provided. The system includes first and second air conditioning packs located in the air craft remote from one another. Each pack includes a pack controller in the same location as the pack. The pack controllers produce operating instruction signals to the packs for instructing the packs to produce conditioned air in response to a reference signal. A supervisory controller is centrally located in aircraft, preferably in the electronics equipment bay, and is connected to each of the pack controllers. The supervisory controller produces the reference signal to the pack controllers. In addition to controlling the operation of the packs, the pack controllers preferably include prognostics for monitoring the packs and diagnosing problems. The distributed electronic controllers of the present invention utilized for the packs may similarly be applied to the zone trim system and the engine air bleed valves.