Method and system for vehicle emission testing

Chemistry: analytical and immunological testing – Oxygen containing – Molecular oxygen

Reexamination Certificate

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C422S083000, C073S023310, C073S001160, C436S143000

Reexamination Certificate

active

07071002

ABSTRACT:
A method and system for vehicle emission testing measures pollutant concentration, but then provides for conversion of the measured pollutant concentration into its corresponding pollutant mass, thereby allowing for the calculation of a vehicle's emission test scores for one or more common pollutants in units of mass per distance. Through the use of the method and system of the present invention, significantly more accurate results can be obtained as compared to prior art test methods, and without the implementation, operating, and maintenance costs of comparable test methods.

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Thomas C. Austin et al., Alternative and Future Technologies for Reducing Greenouse Gas Emissions from Road Vehicles prepared for the Transportation Table Subgroup on Road.
Vehicle Technology and Fuels, Jul. 8, 1999, Report No. SR99-07-01, Sierra Research, Inc., Sacramento, California under subcontract to SENES Consultants Limited.

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