Method and apparatus for decreasing fuel comsumption during particulate filter generation

A diesel particulate filter system comprising:

• a) a diesel particulate filter having a hysteresis of about ±2.0 g/L or less;
• b) a pressure sensor on the inlet side of the diesel particulate filter;
• c) a control module in communication with the pressure sensor, wherein the control module is loaded with at least one look-up table;
• and
• d) one of the at least one look-up table is a pressure drop look-up table that takes into account the variation in soot load of the diesel particulate filter and correlates the amount of soot loaded in the diesel particulate filter to a change in pressure measured by the pressure sensor;
• wherein the control module initiates a regeneration cycle when soot loading of the diesel particulate filter achieves a pre-determined soot load.