Abstract
Abstract Motor vehicle emission remote sensing technology has achieved good application results in the field of gasoline vehicle emissions monitoring, but it is still immature in testing NOx and other gaseous emissions from diesel vehicles due to the large deviation of the tested results. In this paper, a conversion calculation method for remote sensing test data of diesel vehicle emissions is established. Based on the relative concentration ratios of various gaseous components in the exhaust plume of diesel vehicle and the excessive air coefficient of diesel engine under the test condition, the concentrations of various gaseous components emitted from diesel vehicle are obtained. The remote sensing results of NO and other gaseous emissions from the diesel vehicle under the conditions of idling and constant speeds are close to the tested results by PEMS verifying the correctness and feasibility of the conversion calculation method for remote sensing data of diesel vehicle emissions.
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