Title :
Electro-Hydraulic Actuator Tester for Fly-By-Wire Aircrafts
Author :
de Lucena, Samuel E. ; Suzuki, Edson Y.
Author_Institution :
UNESP -Sao Paulo State Univ., Guaratingueta
Abstract :
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.
Keywords :
aircraft control; aircraft instrumentation; electric actuators; electrohydraulic control equipment; hydraulic actuators; microcontrollers; 8051-based microcontroller tester; EHA; dynamic response evaluation; electro-hydraulic actuator tester; fly-by-wire aircrafts; Actuators; Aerospace control; Aircraft; Circuit faults; Circuit testing; Fault detection; Instruments; Microcontrollers; System testing; Valves; LVDT; aircraft maintenance; electro-hydraulic actuator; fly-by-wire;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE
Conference_Location :
Warsaw
Print_ISBN :
1-4244-0588-2
DOI :
10.1109/IMTC.2007.379213
