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Methods For Controlling The Operation Of A Particulate Filter

  • US 20120053814A1
  • Filed: 08/30/2010
  • Published: 03/01/2012
  • Est. Priority Date: 08/30/2010
  • Status: Active Grant
First Claim
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1. A method of controlling the operation of a particulate filter in an exhaust gas after-treatment system, the method comprising:

  • calculating a ratio of particulate loading rate to filter regeneration rate using a mass-based soot load estimation scheme;

    comparing the ratio of particulate loading rate to filter regeneration rate to a predetermined threshold value; and

    controlling operating conditions of the particulate filter to maintain the ratio of particulate loading rate to filter regeneration rate at a value above the predetermined threshold value.

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