×

SELECTIVE CATALYST REDUCTION HEAT MANAGEMENT METHOD AND SYSTEM

  • US 20150285174A1
  • Filed: 04/08/2014
  • Published: 10/08/2015
  • Est. Priority Date: 04/08/2014
  • Status: Active Grant
First Claim
Patent Images

1. A method for providing adequate heat to a selective catalyst reduction system located in a vehicle with an engine and a selective catalyst reducer (SCR), the method comprising:

  • sensing a temperature indicative of the gas temperature at an inlet of the SCR;

    determining whether the gas temperature at the inlet of the SCR is at a first predetermined minimum temperature;

    determining the engine load required for current vehicle operation;

    calculating a first increased engine load required to increase the gas temperature at the inlet of the SCR to at least the first predetermined minimum temperature;

    calculating a first excess engine load by comparing the engine load required for current vehicle operation to the first increased engine load;

    adjusting the engine load to the first increased engine load;

    discarding the first excess engine load through a power absorption device.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×