1979-02-01

Emission and Fuel Economy Measurement Improvements 790233

A program was initiated to improve the emission and fuel economy measurement accuracy and test cell to test cell correlation. Improvements were made to the Constant Volume Sampling System, electric dynamometer, instrument calibration ranges and system checks were initiated to improve the accuracy of the bag emissions, modal emissions, calculated and measured fuel economy. Unique emission and fuel economy problems associated with gasoline and diesel testing were studied and resolutions effected when possible.

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