Experimental research on testing system of engine

We need to improve a part of the original engine and improve the performance in a certain respect of the engine. For example, to improve the compression ratio or raise the charge capacity of the engine or use other substitute fuel etc. We need to again define MAP used in control the quantity of injecting fuel and ignition angle after the engine is improved, this need one set of test system to obtain MAP picture. In engine testing, such parameters as rotational speed, torque, environment temperature, pressure are test. The automatation testing system is designed and created, it is used in testing 465 engines. The testing result is more accurate than traditional testing system. The testing speed is faster, and expenditure is little. It is very important to improve the performance of engine and shorten the development periods. The article introduce the test system constitutes and discuss the way to obtain injecting MAP and ignition MAP for engine.