Patent ID: 7562524
Filing Date: 2009-07-21
Classification: F01N,F02B,Y02T

Abstract:
1. An apparatus for estimating particulate consumption in a particulate filter, the apparatus comprising: an empirical boundary conditions module, the empirical boundary conditions module configured to store first and second boundary soot consumption rates each corresponding to defined operating conditions, wherein the first boundary soot consumption rate is associated with a first condition index value and the second boundary soot consumption rate is associated with a second condition index value; a defined relationships module, the defined relationships module configured to store relationship information between a plurality of potential operating conditions, observed soot consumption rates at the plurality of operating conditions, and at least one of the first and second boundary soot consumption rates; a condition index module, the condition index module configured to determine a current condition index value according to current operating conditions and the stored relationship information, wherein the current condition index value comprises a contribution of individual index values associated with each of the current operating conditions; and a final output value module, the final output value module configured to compare the current condition index value with the first and second condition index values of the first and second boundary soot consumption rates to determine a final output value of current soot consumption rate.