Method and apparatus for insuring the integrity of vehicle testi

Details Method and apparatus for insuring the integrity of vehicle testi Method and apparatus for insuring the integrity of vehicle testi

1995-08-08

1996-06-11

Chilcot, Richard

Measuring and testing

Gas analysis

Gas of combustion

194202, G01N 700

Patent

active

055244769

ABSTRACT:
A method and apparatus for improving the integrity of a vehicle test procedure insures that the vehicle to which a varying test parameter is applied is the same as the vehicle whose response is required. A random variation to the test parameter is introduced, and the response of a chosen vehicle characteristic to the variation is monitored and correlated with the variations. A high correlation confirms that the vehicle whose response is being monitored is in fact the vehicle to which the parameter is applied. The method may advantageously be used in connection with EPA-sanctioned exhaust emission test protocols.

REFERENCES:
patent: 3407646 (1968-10-01), Traver
patent: 3603155 (1971-09-01), Morris et al.
patent: 3630072 (1971-12-01), Traver
patent: 3998095 (1976-12-01), Tinkham et al.
patent: 4167163 (1979-09-01), Moder
patent: 5343906 (1994-09-01), Tibbals, III
patent: 5419178 (1995-05-01), Decker et al.
patent: 5431042 (1995-07-01), Lambert et al.

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