Patent ID: 8818691

Claim:
An internal combustion engine system comprising: a cylinder; a fuel system in fluid communication with the cylinder to direct a fuel flow to be mixed with air in the cylinder for a combustion process; an exhaust system in fluid communication with the cylinder to receive an exhaust gas produced by the combustion process, wherein the exhaust system includes an oxidation catalyst, and a particulate filter downstream of the oxidation catalyst; and a control module programmed to: determine an amount of energy to be provided to the exhaust gas to achieve a desired temperature at the particulate filter; determine the energy available from a post-injection process using the fuel system, a hydrocarbon injector, and a heating device configured to heat the exhaust gas in the particulate filter, that can be utilized to achieve the desired temperature; and determine a distribution of the energy available from the post-injection process, the hydrocarbon injector, and the heating device, to achieve the desired temperature.