Design And Implementation Of Automatic Test System For Aeroengine Electronic Controller

The electronic controller is an important part of aircraft engine.Its performance and reliability is directly related to the engine and even the whole aircraft safety.In order to ensure the stability and flight safety of the aircraft,it is necessary to test the performance parameters of the electronic controller accurately and improve the measurement accuracy as much as possible.However,at present,manual and traditional instruments are usually used to test the electronic controller,which have some problems such as low efficiency,large data error and low precision.Therefore,in order to meet the actual needs of engineering,this paper designed a high-performance and high-precision automated testing equipment.In this paper,an automatic test system for the electronic controller of an aeroengine in an institute of Xi’an aeronautical industry,and it is mainly composed of four subsystems: analog simulation system,signal conditioning system,test tooling system and power supply simulation system.Firstly,according to the requirements of the system,the hardware is selected,the board with high performance and high precision is selected,Design signal conditioning box and signal conditioning system,discuss the working principle and circuit principle of each module of general signal conditioning in detail,and simulate the signal of sensor.Secondly,based on the Veristand real-time simulation and configuration platform and LabVIEW software development tools,a test application program for real-time monitoring is developed in which dynamic data can be real-time acquired,displayed and storaged,as well as online outputs electronic controller sensor signals,processes and analysis off-line data.At the same time,in order to improve the implementation efficiency and ensure the accuracy of the data,the production/consumption structure based on LabVIEW is established to realize the real-time interaction between the upper computer and the lower computer.Finally,the test system is debugged,the test of the product is completed,and the precision of the test results is analyzed.The research results show that the solution realizes the design of an automatic test system for aero-engine electronic controllers.After subsequent system joint debugging and performance verification,high-precision testing of this type of product can be achieved,which improves the versatility and stability of the system,has reached the project’s expected goal,and has better engineering practical significance.