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Method and system for simulating various engine operating conditions to evaluate engine emissions test equipment

  • US 8,495,908 B2
  • Filed: 09/21/2011
  • Issued: 07/30/2013
  • Est. Priority Date: 09/21/2011
  • Status: Active Grant
First Claim
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1. A system comprising:

  • an engine control module that controls an engine mounted in one of an engine dynamometer and a chassis dynamometer based on a predetermined schedule specifying a desired speed with respect to time;

    a valve control module that controls a valve to inject a first quantity of a substance into an exhaust system to simulate the engine outputting an emission; and

    a level determination module that determines an emissions level of the emission in the exhaust system based on the predetermined schedule and the first quantity.

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