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Development of On-Road Emission Factors Heavy-Duty Diesel Vehicles Using a211 Continuous Sampling System

机译:利用a211连续采样系统开发道路排放因子重型柴油车

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The purpose of the test program is to improve the existing conversion procedures211u001efor relating engine dynamometer tests in the laboratory to actual on-road 211u001eemissions and to evaluate new modal approaches to estimate these emissions. The 211u001eobjectives of this project are to: (1) define on-road emissions from HDDVs; (2) 211u001eassess agreement among engine and chassis dynamometers and on-road emission 211u001efactors; (3) evaluate current conversion factors for dynamometer data and develop 211u001eappropriate ones if needed; and (4) develop a modal emissions model that relates 211u001ehighway facility type (including grade) to speeds/accelerations of the vehicle, 211u001eloaded weight, power demand on the vehicle, and emissions of NOx, CO, and VOCs.

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