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

fYear

2007

fDate

1-3 May 2007

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE

Conference_Location

Warsaw

ISSN

1091-5281

Print_ISBN

1-4244-0588-2

Type

conf

DOI

10.1109/IMTC.2007.379213

Filename

4258493