Electro-Hydraulic Actuator Tester for Fly-By-Wire Aircrafts

Electro-Hydraulic Actuator Tester for Fly-By-Wire Aircrafts

An 8051-based microcontroller tester has been designed to reduce troubleshooting time of the electro-hydraulic actuators (EHA) installed in fly-by-wire aircrafts. The tester algorithm first evaluates EHA pressure and position sensor signals to emit either a pass or fail message. The evaluation is ba...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: de Lucena, S.E., Suzuki, E.Y.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Actuators
Aerospace control
Aircraft
aircraft maintenance
Circuit faults
Circuit testing
electro-hydraulic actuator
Fault detection
fly-by-wire
Instruments
LVDT
Microcontrollers
System testing
Valves
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Beschreibung
Zusammenfassung:An 8051-based microcontroller tester has been designed to reduce troubleshooting time of the electro-hydraulic actuators (EHA) installed in fly-by-wire aircrafts. The tester algorithm first evaluates EHA pressure and position sensor signals to emit either a pass or fail message. The evaluation is based on predefined ranges of EHA pressure and position signals. Next, the instrument tests the EHA response capability -a way of dynamic response evaluation, again issuing a suitable response. The instrument proved to be reliable after being successfully evaluated in laboratory and in a real model test airplane.
ISSN:1091-5281
DOI:10.1109/IMTC.2007.379213