DOE Patents Database - Search Results

Patent Title	Inventor(s)	Issue Date	Patent Number
An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material is applied to an exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF. A catalyst coating applied to at least one of the PF and the grid. A control module estimates a temperature of the grid and controls the engine to produce a desired exhaust product to increase the temperature of the grid. Electrically heated particulate filter enhanced ignition strategy	Gonze, Eugene V , Paratore, Jr., Michael J , McNamee, Sara	10/23/2012	8,291,694
A system includes a particulate matter (PM) filter with an upstream end for receiving exhaust gas, a downstream end and zones. The system also includes a heating element. A control module selectively activates the heating element to inductively heat one of the zones. Inductively heated particulate matter filter regeneration control system	Gonze, Eugene V , Paratore Jr., Michael J , Kirby, Kevin W , Phelps, Amanda , Gregoire, Daniel J	10/23/2012	8,292,987
A system that diagnoses regeneration of an electrically heated particulate filter is provided. The system generally includes a grid module that diagnoses a fault of the grid based on at least one of a current signal and a voltage signal. A diagnostic module at least one of sets a fault status and generates a warning signal based on the fault of the grid. Electrically heated particulate filter diagnostic systems and methods	Gonze, Eugene V. , Paratore, Jr., Michael J.	09/29/2009	7,594,940
An electrical connection system for a particulate filter is provided. The system includes: a particulate filter (PF) disposed within an outer shell wherein the PF is segmented into a plurality of heating zones; an outer mat disposed between the particulate filter and the outer shell; an electrical connector coupled to the outer shell of the PF; and a plurality of printed circuit connections that extend along the outer surface of the PF from the electrical connector to the plurality of heating zones. Zone heated diesel particulate filter electrical connection	Gonze, Eugene V. , Paratore, Jr., Michael J.	03/30/2010	7,686,857
An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material selectively heats exhaust passing through the upstream end to initiate combustion of particulates within the PF. A hydrocarbon adsorbent coating applied to the PF releases hydrocarbons into the exhaust to increase a temperature of the combustion of the particulates within the PF. Electrically heated particulate filter regeneration using hydrocarbon adsorbents	Gonze, Eugene V. , Paratore, Jr., Michael J. , Ament, Frank	02/01/2011	7,877,987
A control system for controlling regeneration of a particulate filter for a hybrid vehicle is provided. The system generally includes a regeneration module that controls current to the particulate filter to initiate regeneration. An engine control module controls operation of an engine of the hybrid vehicle based on the control of the current to the particulate filter. Electrically heated particulate filter regeneration methods and systems for hybrid vehicles	Gonze, Eugene V. , Paratore, Jr., Michael J.	10/12/2010	7,810,318
A diesel particulate filter assembly comprises a diesel particulate filter (DPF) and a heater assembly. The DPF filters a particulate from exhaust produced by an engine. The heater assembly has a first metallic layer that is applied to the DPF, a resistive layer that is applied to the first metallic layer, and a second metallic layer that is applied to the resistive layer. The second metallic layer is etched to form a plurality of zones. Diesel particulate filter with zoned resistive heater	Gonze, Eugene V. , Paratore, Jr., Michael J.	03/08/2011	7,901,475
An exhaust filter system includes a particulate filter (PF) that is disposed downstream from an engine. The PF filters particulates within an exhaust from the engine. A heating element heats particulate matter in the PF. A fastener limits expansion movement of the heating element relative to the PF. DPF heater attachment mechanisms	Gonze, Eugene V. , Ament, Frank , Paratore, Jr., Michael J.	04/26/2011	7,931,715
A control system that controls regeneration of a particulate filter is provided. The system generally includes a regeneration module that controls current to the particulate filter to initiate combustion of particulate matter in the particulate filter. A propagation module estimates a propagation status of the combustion of the particulate matter based on a combustion temperature. A temperature adjustment module controls the combustion temperature by selectively increasing a temperature of exhaust that passes through the particulate filter. Electrically heated particulate filter propagation support methods and systems	Gonze, Eugene V. , Paratore, Jr., Michael J. , Ament, Frank	06/07/2011	7,958,723
A control system that controls regeneration of a particulate filter is provided. The system generally includes a propagation module that estimates a propagation status of combustion of particulate matter in the particulate filter. A regeneration module controls current to the particulate filter to re-initiate regeneration based on the propagation status. Electrically heated particulate filter restart strategy	Gonze, Eugene V. , Paratore, Jr., Michael J. , Ament, Frank	07/12/2011	7,975,469
A control system for reducing ash comprises a temperature estimator module that estimates a temperature of an electrically heated particulate matter (PM) filter. A temperature and position estimator module estimates a position and temperature of an oxidation wave within the electrically heated PM filter. An ash reduction control module adjusts at least one of exhaust flow, fuel and oxygen levels in the electrically heated PM filter to adjust a position of the oxidation wave within the electrically heated PM filter based on the oxidation wave temperature and position. Ash reduction system using electrically heated particulate matter filter	Gonze, Eugene V. , Paratore, Jr., Michael J. , He, Yongsheng	08/16/2011	7,997,069
An emissions control system includes a temperature determination module and an emissions control module. The temperature determination module determines a first temperature of a heater element of a diesel particulate filter (DPF) assembly in an exhaust system and determines a second temperature of a catalyst of the DPF assembly. The emissions control module selectively activates the heater element, selectively initiates a predefined combustion process in an engine based upon the first temperature, and selectively starts a reductant injection process based upon the second temperature. Selective catalyst reduction light-off strategy	Gonze, Eugene V. , Paratore, Jr., Michael J.	10/18/2011	8,037,673
A system comprises a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones. Zoned electrical heater arranged in spaced relationship from particulate filter	Gonze, Eugene V. , Paratore, Jr., Michael J.	11/15/2011	8,057,581
A system includes a particulate matter (PM) filter including an upstream end for receiving exhaust gas and a downstream end. A radiant zoned heater includes N zones, where N is an integer greater than one, wherein each of the N zones includes M sub-zones, where M is an integer greater than or equal to one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones, restricts exhaust gas flow in a portion of the PM filter that corresponds to the selected one of the N zones, and deactivates non-selected ones of the N zones. Radiant zone heated particulate filter	Gonze, Eugene V. , Paratore, Jr., Michael J.	12/27/2011	8,083,839
A system comprises a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and at least one portion. A control module initiates combustion of PM in the PM filter using a heater and selectively adjusts oxygen levels of the exhaust gas to adjust a temperature of combustion adjacent to the at least one portion of the PM filter. A method comprises providing a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and at least one portion; initiating combustion of PM in the PM filter using a heater; selectively adjusting oxygen levels of the exhaust gas to adjust a temperature of combustion adjacent to the at least one portion of the PM filter. Face crack reduction strategy for particulate filters	Gonze, Eugene V. , Paratore, Jr., Michael J. , Bhatia, Garima	01/31/2012	8,105,417
A control system that controls regeneration of a particulate filter is provided. The system generally includes a fuel control module that controls injection of fuel into exhaust that passes through the particulate filter. A regeneration module controls current to the particulate filter to initiate regeneration after the fuel has been injected into the exhaust. Electrically heated particulate filter preparation methods and systems	Gonze, Eugene V. , Paratore, Jr., Michael J.	01/31/2012	8,104,270
A system includes a particulate matter (PM) filter, a sensor, a heating element, and a control module. The PM filter includes with an upstream end that receives exhaust gas, a downstream end and multiple zones. The sensor detects a temperature of the exhaust gas. The control module controls current to the heating element to convection heat one of the zones and initiate a regeneration process. The control module selectively increases current to the heating element relative to a reference regeneration current level when the temperature is less than a predetermined temperature. Low exhaust temperature electrically heated particulate matter filter system	Gonze, Eugene V. , Paratore, Jr., Michael J. , Bhatia, Garima	02/14/2012	8,112,990
A system includes an electrical heater and a particulate matter (PM) filter that is arranged one of adjacent to and in contact with the electrical heater. A control module selectively increases an exhaust gas temperature of an engine to a first temperature and that initiates regeneration of the PM filter using the electrical heater while the exhaust gas temperature is above the first temperature. The first temperature is greater than a maximum exhaust gas temperature at the PM filter during non-regeneration operation and is less than an oxidation temperature of the PM. Elevated exhaust temperature, zoned, electrically-heated particulate matter filter	Gonze, Eugene V. , Paratore, Jr., Michael J. , Bhatia, Garima	04/17/2012	8,156,737
An exhaust system that processes exhaust generated by an engine has a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates in the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates. Heat generated by combustion of particulates in the heater induces combustion of particulates within the DPF. A control module selectively enables current flow to the electrical heater for an initial period of a DPF regeneration cycle, and limits exhaust flow while the electrical heater is heating to a predetermined soot combustion temperature. Electrically heated DPF start-up strategy	Gonze, Eugene V. , Paratore, Jr., Michael J. , Ament, Frank	04/10/2012	8,151,557
A system includes a particulate matter (PM) filter with multiple zones, an electric heater and a control module. The electrical heater includes heater segments, which each correspond with a respective one of the zones. The electrical heater is arranged upstream from and is proximate with the PM filter. The control module selectively applies a first energy level to a first one of the zones via a first one of the heater segments to initiate regeneration in the first zone. The control module also selectively applies a second energy level that is less than the first energy level to a second one of the zones via a second one of the heater segments to initiate regeneration in the second zone. Variable power distribution for zoned regeneration of an electrically heated particulate filter	Bhatia, Garima , Gonze, Eugene V. , Paratore, Jr., Michael J.	04/03/2012	8,146,350
An exhaust system that processes exhaust generated by an engine is provided. The system includes: a particulate filter (PF) that is disposed downstream of the engine and that filters particulates from the exhaust; and a grid that includes electrically resistive material that is segmented by non-conductive material into a plurality of zones and wherein the grid is applied to an exterior upstream surface of the PF. Zone heated inlet ignited diesel particulate filter regeneration	Gonze, Eugene V. , Ament, Frank , Paratore, Jr., Michael J.	06/26/2012	8,205,441
A system includes a particulate matter (PM) filter that includes X zones. An electrical heater includes Y heater segments that are associated with respective ones of the X zones. The electrical heater is arranged upstream from and proximate with the PM filter. A valve assembly includes Z sections that are associated with respective ones of the X zones. A control module adjusts flow through each of the Z sections during regeneration of the PM filter via control of the valve assembly. X, Y and Z are integers. Electrically heated particulate filter with zoned exhaust flow control	Gonze, Eugene V. , Paratore, Jr., Michael J.	06/26/2012	8,205,439
A regeneration system comprises a particulate matter (PM) filter including a microwave energy absorbing surface, and an antenna system comprising N antennas and an antenna driver module that sequentially drives the antenna system in a plurality of transverse modes of the antenna system to heat selected portions of the microwave absorbing surface to regenerate the PM filter, where N is an integer greater than one. The transverse modes may include transverse electric (TE) and/or transverse magnetic (TM) modes. Microwave mode shifting antenna system for regenerating particulate filters	Gonze, Eugene V. , Paratore, Jr., Michael J. , Kirby, Kevin W. , Phelps, Amanda , Gregoire, Daniel J.	04/26/2011	7,931,727
An assembly includes a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and multiple zones. An absorbing layer absorbs microwave energy in one of N frequency ranges and is arranged with the upstream end. N is an integer. A frequency selective filter has M frequency selective segments and receives microwave energy in the N frequency ranges. M is an integer. One of the M frequency selective segments permits passage of the microwave energy in one of the N frequency ranges and does not permit passage of microwave energy in the other of the N frequency ranges. Wireless zoned particulate matter filter regeneration control system	Gonze, Eugene V. , Paratore, Jr., Michael J. , Kirby, Kevin W. , Phelps, Amanda , Gregoire, Daniel J.	10/04/2011	8,029,582

Top