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Microprocessor Adaptive Control for Aircraft ECS
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English
Abstract
Modern aircraft require always more reliable systems for both crew and passengers safety and comfort.
At present new ECS designs are very attractive for their low power consumption even in spite of the more complex structure. The strong changes in the system dynamics, over the complete working range of the ECS, lower the reliability of the conventional analog control systems which, due to their own structure, not capable to adapt to different working conditions, have to be designed only with reference to an averaged status. Adaptive controls are digital controls which adapt itself, step by step, to the system dynamics (identified with proper algorithms) and are capable to optimize the controller structure in each system working condition.
The present paper shows how adaptive controls, performed by microprocessors, can improve the ECS performances especially from the dynamics point of view.
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Citation
Ferla, G. and Marchis, V., "Microprocessor Adaptive Control for Aircraft ECS," SAE Technical Paper 831139, 1983, https://doi.org/10.4271/831139.Also In
References
- CRABTREE R.E. et al. “The cabin air conditioning and temperature control system for the Boeing 767 and 757 airplanes” ICES Conf. 1980 San Diego
- KURYLOWICH G. LLOYD A.J.P. “Aircraft vehicle equipment improvements via microprocessor” ICES Conf. 1982 San Diego 820868
- EMDE B.N. LLOYD A.J.P. “A hybrid facility for the simulation, development and validation of ECS microprocessor based controls” ICES Conf. 1982 San Diego 820867
- SAE SAE Aerospace Applied Thermodynamics Manual New York 1969 479 493
- ISERMANN R. Digital Control Systems Berlin 1981
- CARELLI R. GRECO C. “Adaptive control techniques” CENS (Politecnicodi Torino), RP 82/5 july 1982
- ÅNSTRÖM K.J. et al. “Theory and applications of self tuning regulators” Automatica 13 1977 457 476
- CLARKE D.W. “Introduction to self tuning controllers” Self tuning and adaptive control Harris Billings Steevenage 1981
- ISERMANN R. “Parameter adaptive control algorithms- A tutorial” Automatica 18 1982 513 528