Patent ID: 8292987

Claim:
A system comprising: a particulate matter (PM) filter comprises an upstream end for receiving exhaust gas, a downstream end and a plurality of zones; a plurality of heating elements, wherein each of said plurality of heating elements surrounding a respective one of said plurality of zones; and a control module that selectively activates a first one of said plurality of heating elements to inductively heat a first one of said plurality of zones, wherein said first one of said plurality of heating elements is closer to said downstream end than other ones of said plurality of heating elements, wherein said control module heats and regenerates said first one of said plurality of heating elements prior to heating and regenerating said other ones of said plurality of heating elements, wherein said control module sequentially activates said plurality of heating elements from said downstream end to said upstream end to regenerate said PM filter, wherein said control module is configured to determine at least one engine operating parameter and adjusts a frequency of current applied to said plurality of heating elements based on said at least one engine operating parameter; and wherein said at least one engine operating parameter comprises an engine load, a fuel injection timing value, and an exhaust gas recirculation value.