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System and method of DPF passive enhancement through powertrain torque-speed management

  • US 9,194,318 B2
  • Filed: 02/28/2012
  • Issued: 11/24/2015
  • Est. Priority Date: 02/28/2011
  • Status: Active Grant
First Claim
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1. A method to enhance the passive regeneration of a diesel particulate filter (DPF), the method comprising:

  • receiving, by a processor of an engine system, current operating data indicative of a vehicle current operating state based on at least two of power demand, engine speed, engine torque, gear number, and vehicle speed;

    receiving, by the processor, terrain data indicative of terrain variation;

    determining, by the processor, a vehicle target operating state based on engine exhaust particulate matter (PM) and engine transients; and

    providing, by the processor, an engine speed and transmission gear shift recommendation based on said vehicle target operating state to reduce at least one of said engine exhaust PM and said engine transients.

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