Statistical Regularity and Modeling of Passenger Cars' Unburned Hydrocarbon Emission

摘要

By the technical means and methods of large sample size detection, multiple parameter data analysis and mathematical modeling, the unburned hydrocarbon emission statistical regularities in idle condition of three types passenger cars have been researched, the statistical characteristics of the emission have been revealed, and the high precision statistical models which can describe the statistical regularities and characteristics have been established also. Checking computation showed that the calculating results got by the models have very high calculating precision. On the basis of above-mentioned researches, the specific proposals have been put forward to revise the relevant limit values of Chinese national standard about in-use passenger cars exhaust pollutant, and I/M program should be enforced in order to control the exhaust pollution of in-use passenger cars efficiently.