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Method and system for predictive emission maintenance of an engine

  • US 10,544,758 B2
  • Filed: 02/08/2018
  • Issued: 01/28/2020
  • Est. Priority Date: 07/31/2015
  • Status: Active Grant
First Claim
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1. A method for predictive emission maintenance of a common rail diesel engine having an emissions reduction system that includes an exhaust gas recirculation (EGR) valve component, the method comprising:

  • a controller obtaining an initial valve position of a valve of the EGR valve component with respect to a seat of the EGR valve component upon startup of a transport refrigeration unit (TRU) or a TRU generator set (GenSet);

    the controller predicting engine emission maintenance based on the initial valve position of the valve of the EGR valve component;

    the controller providing a notification based on the predicted engine emission maintenance.

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