The Research Of Automation-Test-Rig Of Turbocharger

Nowadays, as energy and environment are the two subjects for the development of the world, more attentions are paid to them by all the world countries. With the faster development of our country economy and the more energy consumed by vehicles, the exhaust gas pollutions from vehicles are becoming more and more serious. There has been more than 100 years since the technology of turbocharger appeared in the world. It has been applied in most industrial area, especially in vehicle area, through improvement and modification of itself. Turbocharger has very important effects on the emission of engines.Supercharger is one of the important parts in diesel engine, which performance directly influences the economy, motivity and dependability of the diesel engine. Supercharger test rig plays an important role in testing its performance, especially in the experiment about matching between turbocharger and engine during the researching process of the supercharger. Some main performance parameters are measured by the rig and the compressor characteristics curve are protracted.In this paper an automation test rig of turbocharger for vehicles is researched. All the test rig designing projects are introduced especially about temperature-adding system ( composed of combustion and ignition system ), oil-cooling lubricate system, measure and controlling system. In the experiment, the emission of engines is simulated in the aero-engine single tube firebox. Meanwhile the compressor characteristics experiment is done through S3B supercharger provided by Wei-Chai. Test and analysis results certify the rig's reliability and stability.A new fitting way and automated protracting program about compressor characteristics curve is provided based on the measured data and the traditional protracting and fitting way. The results show that the way is precise and can make the whole process automation for the characteristic performance test of the supercharger through comparing with the S3B-compressor characteristics curve fitted by Excel.