The Research On Electronic Fuel Injection's Engine Test-bed

The engine test is essential means which can check engine's power, economic, reliability of work and can inspect the manufacture's quality, reliability and wear resistance of engine and its parts. It is important tache of researching, designing, manufacturing the new-type engine, too. The engine is usually tested on test-bed in order to strictly control test's condition and simulate the different load condition.Engine test-bed is the main equipment of testing the performance of engines. Its lever of automation and control precision will affect the tested data's collection and analysis directly. To insure control precision in the manufacture and to improve the level of automation, it is the trend of development to apply the PLC control system for engine test-bed experiment.This paper mainly introduces the whole research process of the engine test-bed system and discusses the design and implementation of engine test-bed of starting system, fuel supply system, water injection system, drainage system, PLC control system, TD200 show panel, and so on. After the function realization of system, the working condition of the hard ware, integrative performance and rational matching of various components are considered, the hardware is designed. At the same time, the software is systematically designed, which include editing the parameters, watching and controlling the system, auto-controlling, and so on. So that the system can realize the function of watching and controlling, giving alarm, displaying the reports of the experiments. Aiming at the important aspects in research process of the engine test-bed, it introduces the structure, working principle of the diversified systems in particular and expatiates on the design of pivotal hardware and programme of special software. The whole engine test-bed not only has high automatization, handy manipulation, intuitionistic show, but also improves the working condition, saves time and manpower, increases the productivity.