Patent ID: 6862927

Claim:
A method for determining the regeneration performance of an engine exhaust gas particulate filter under multiple sets of filter regeneration conditions which comprises the steps of: (a) loading the filter with a measured quantity of combustible particulate material; (b) conveying through the filter a gas stream characterized by two or more exhaust gas inlet variables selected from the group consisting of inlet oxygen content O 2 , inlet temperature T i , inlet flow rate V i , and inlet hydrocarbon content HC i , at least two of the exhaust variables being known; (c) initiating combustion of the particulate material while maintaining the at least two exhaust inlet variables constant; (d) determining at least one of a peak combustion temperature and a residual particulate material content for the filter resulting from the combustion; and (e) repeating steps (a)-(d) at different values for at least one of the two exhaust inlet variables.