Engine emissions analyzer with diagnostic

Details Engine emissions analyzer with diagnostic Engine emissions analyzer with diagnostic

1996-06-27

1998-05-12

Dombroske, George M.

Measuring and testing

Vehicle chassis

Steering

73 2331, 73116, 60277, 340439, 36443103, G01M 1500

Patent

active

057508860

ABSTRACT:
A method for analyzing automotive vehicle emissions detects and logs significant engine events over a test period, and applies the logged events to a model defining the emissions impact of such events to yield a vehicle emissions estimate for the test period. The method includes a diagnostic for diagnosing a deviation in performance of emissions control systems away from an expected performance and for correcting the vehicle emissions estimated to reflect the operating condition of the emissions control systems.

REFERENCES:
patent: 4928518 (1990-05-01), Tamura
patent: 5052361 (1991-10-01), Ono et al.
patent: 5263358 (1993-11-01), Center et al.
patent: 5417099 (1995-05-01), Ohuchi
patent: 5431042 (1995-07-01), Lambert et al.
patent: 5535135 (1996-07-01), Bush et al.

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