Remote sensing detection method of motor vehicle exhaust based on combustion equation correction algorithm

Abstract

The invention relates to a remote sensing detection method of motor vehicle exhaust based on a combustion equation correction algorithm. The remote sensing detection method comprises the following steps of obtaining a road background light signal according to the detection of a detector of remote sensing detection equipment; obtaining a motor vehicle exhaust light signal according to the detection of the detector of the remote sensing detection equipment; obtaining gas puff values of CO, HC, NO, NH3 and CO2 in the motor vehicle exhaust and particulate matter smoke opacity according to the difference between the motor vehicle exhaust light signal and the road background light signal, and calculating the ratio of relative volume concentrations of CO, HC, NO, NH3 and CO2 in the motor vehicle exhaust; calculating the volume concentrations of CO2, CO, HC, NO and NH3 in the motor vehicle exhaust by adopting a corrected combustion equation according to the obtained ratio of the relative volume concentrations of CO, HC, NO, NH3 and CO2 in the motor vehicle exhaust, and calculating emission factors of all gaseous pollutants in the motor vehicle exhaust on the basis of oil.

Description

technical field [0001] The invention relates to a remote sensing monitoring method for motor vehicle exhaust, in particular to a remote sensing detection method for motor vehicle exhaust based on a combustion equation correction algorithm. Background technique [0002] Vehicle exhaust remote sensing detection technology actually measures the ratio of relative concentrations between gases, and to convert the measured ratio into exhaust gas concentration requires the help of the combustion equation theory in the engine combustion process and the four atoms of C, H, O, and N. The principle of conservation of mass. Therefore, the accuracy of exhaust gas detection data depends on the detection sensitivity of remote sensing equipment on the one hand, and the rationality of the theoretical model algorithm on the other hand. When the existing remote sensing detection technology uses the combustion equation to calculate the exhaust gas concentration, it is usually assumed that the e...

AI Technical Summary

Problems solved by technology

But it is still based on the assumption that the fuel composition of gasoline and diesel is CH 2 And under the premise of a specific oxygen content, it is not possible to give the conditions applicable to different O 2 The general formula of concentration has a large uncertainty, and its practical application is greatly limited

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