Hardware-in-the-loop simulation for testing of electro-hydraulic fuel control unit in a jet engine application

Abstract

A hardware-in-the-loop (HIL) simulation framework for testing an experimental electro-hydraulic fuel control unit (FCU) within the numerical simulation of a turbojet engine is presented. The HIL simulator is used to create control signals, and hydraulic and mechanical loads to emulate the operating conditions with a state-of-the-art hydraulic test bench. In a real engine, the FCU contains a miniature gear-type liquid-fuel pump which is driven at a fraction of the engine rotor speed mechanically by a gear. In this study, the engine is simulated numerically and an electric motor is employed to drive the pump instead of the mechanical system. The real-time simulation of the turbojet engine thermodynamic model is implemented on an industrial personal computer with an input/output board in connection with the electro-hydraulic system. Comparison between the HIL simulation and software simulation of the whole system shows the propriety of the HIL simulation platform to test and evaluate a fuel control system.

3D Simulator with Hardware-in-the-Loop capability for the Micromouse Competition

“…HIL systems have been widely applied because of their advantages during the process of development already mentioned in Section I. The main areas that have been developing and adopting HIL are aeronautical industries [3], [4], automotive industry [5]- [7] and power systems [8], [9].…”

A mimicking technique of back pressure in the hardware-in-the-loop simulation of a fuel control unit

“…Usage of HIL simulation for testing the aero-engine FCU has been reported in several researches for different purposes. Montazeri-Gh et al 3,4 investigated the complex interaction between the FCU hardware and overall aircraft performance, while Karpenko and Sepehri 5 objectively tested novel fault tolerant control and diagnostics algorithms for fluid power actuators. Principles of the fuel control are presented by Tudosie,6 among which the type with constant fuel differential pressure and an adjustable fuel window is most widely used.…”

Flatness-based control scheme for hardware-in-the-loop simulations of omnidirectional mobile robot

“…27 Olma et al proposed an observer-based nonlinear control strategy for the HIL-based simulation of a multiaxial suspension test rig. 28 An electrohydraulic fuel control unit for jet engines was tested through HIL simulations by Montazeri-Gh and Nasiri, 29 while a fuel control unit was tested through HIL simulations by Hashemi et al 30 Sisle and McCarthy developed a HIL simulation test for an active missile. 31 In our previous work, 32 we used a bond graph-based technique and a flatness-based control scheme to perform SIL simulations before real-time tests.…”