Patents by Inventor Jeffrey P. Wuttke
Jeffrey P. Wuttke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220235725Abstract: A cylinder head assembly for an internal combustion engine is provided. In one example implementation, the cylinder head assembly includes a cylinder head, a bypass passage formed within the cylinder head and defining a catalyst cavity, and a bypass catalytic converter disposed within the catalyst cavity, where the bypass catalytic converter is configured to provide emissions reduction during cold start, long idle, and/or low main catalytic converter temperature conditions.Type: ApplicationFiled: January 26, 2021Publication date: July 28, 2022Inventors: Jeff Brand, Ryan M. Sturgeon, Brett Schubring, Jeffrey P. Wuttke
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Publication number: 20190323405Abstract: An exhaust treatment system configured to treat exhaust gas produced by an engine of a vehicle and its method of operation involve providing a gasoline particulate filter (GPF) configured to trap particulate matter (PM) in the exhaust gas and a utilizing a controller configured to determine a modeled PM load level on the GPF and, based on the modeled PM load level of the GPF, control operation of the engine to maintain at least a minimum PM load level on the GPF, wherein the minimum PM load level is greater than zero and corresponds to an optimized efficiency of the GPF.Type: ApplicationFiled: June 21, 2018Publication date: October 24, 2019Inventors: Brett Schubring, Brian E. Hallgren, Luis J. Del Rio, Jeffrey P. Wuttke, Jordan E. Easter
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Patent number: 10247116Abstract: An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor to an engine of the vehicle via a vapor line and a purge valve. The system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. A controller is configured to: detect an imminent cold start of the engine and, in response to the detecting, perform the cold start of the engine by controlling at least one of the purge pump and the purge valve, based on the measured amount of HC, to deliver a desired amount of fuel vapor to the engine, which decreases HC emissions by the engine.Type: GrantFiled: May 25, 2016Date of Patent: April 2, 2019Assignee: FCA US LLCInventors: Joseph Dekar, Roger C Sager, James J Daley, William B Blomquist, Jeffrey P Wuttke, Russell J Wakeman, Adam Fleischman, Ronald A Yannone, Jr., Luis Del Rio, Mark L Lott, Edward Baker, Michael T Vincent, Wei-Jun Yang, Aikaterini Tsahalou
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Patent number: 10161323Abstract: A vapor canister of an evaporative emissions (EVAP) system is configured to store fuel vapor evaporated from a liquid fuel housed in a fuel tank of a vehicle. A boost line is connected between a high-pressure side of a boost system of an engine and the vapor canister, a boost pressure control valve is disposed in-line along the boost line and configured to control an amount of boost pressure provided to the vapor canister, and a set of purge lines are connected between the vapor canister and at least one of the engine, an induction system of the engine, and an exhaust treatment system of the engine. A controller is configured to control the boost pressure control valve to control the boost pressure provided to the vapor canister to control an amount of fuel vapor forced from the vapor canister through at least one of the set of purge lines.Type: GrantFiled: November 23, 2016Date of Patent: December 25, 2018Assignee: FCA US LLCInventors: Roger C Sager, Ryan Sturgeon, James Daley, Joseph Dekar, Jospeh B Unsworth, Luis Del Rio, Ronald A Yannone, Jr., Jeffrey P Wuttke
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Publication number: 20180142631Abstract: A vapor canister of an evaporative emissions (EVAP) system is configured to store fuel vapor evaporated from a liquid fuel housed in a fuel tank of a vehicle. A boost line is connected between a high-pressure side of a boost system of an engine and the vapor canister, a boost pressure control valve is disposed in-line along the boost line and configured to control an amount of boost pressure provided to the vapor canister, and a set of purge lines are connected between the vapor canister and at least one of the engine, an induction system of the engine, and an exhaust treatment system of the engine. A controller is configured to control the boost pressure control valve to control the boost pressure provided to the vapor canister to control an amount of fuel vapor forced from the vapor canister through at least one of the set of purge lines.Type: ApplicationFiled: November 23, 2016Publication date: May 24, 2018Inventors: Roger C. Sager, Ryan Sturgeon, James Daley, Joseph Dekar, Jospeh B. Unsworth, Luis Del Rio, Ronald A Yannone, JR., Jeffrey P Wuttke
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Patent number: 9879623Abstract: An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor trapped in a vapor canister to an engine of the vehicle via a vapor line when engine vacuum is less than an appropriate level for delivering fuel vapor to the engine, the fuel vapor resulting from evaporation of a liquid fuel stored in a fuel tank of the engine. The EVAP control system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. The EVAP control system also includes a controller configured to, based on the measured amount of MC, control at least one of the purge pump and a purge valve to deliver a desired amount of fuel vapor to the engine.Type: GrantFiled: May 25, 2016Date of Patent: January 30, 2018Assignee: FCA US LLCInventors: Joseph Dekar, Roger C Sager, James J Daley, William B Blomquist, Jeffrey P Wuttke, Russell J Wakeman, Adam Fleischman, Ronald A Yannone, Jr., Luis Del Rio, Mark L Lott, Edward Baker, Michael T Vincent, Wei-Jun Yang, Aikaterini Tsahalou
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Publication number: 20170342917Abstract: An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor to an engine of the vehicle via a vapor line and a purge valve. The system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. A controller is configured to: detect an imminent cold start of the engine and, in response to the detecting, perform the cold start of the engine by controlling at least one of the purge pump and the purge valve, based on the measured amount of HC, to deliver a desired amount of fuel vapor to the engine, which decreases HC emissions by the engine.Type: ApplicationFiled: May 25, 2016Publication date: November 30, 2017Inventors: Joseph Dekar, Roger C Sager, James J Daley, William B Blomquist, Jeffrey P Wuttke, Russell J Wakeman, Adam Fleischman, Ronald A Yannone, Jr., Luis Del Rio, Mark L Lott, Edward Baker, Michael T Vincent, Wei-Jun Yang, Aikaterini Tsahalou
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Publication number: 20170342918Abstract: An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor to a direct injection (DI) engine of the vehicle via a vapor line and a purge valve and a hydrocarbon (HC) sensor disposed configured to measure an amount of HC in the fuel vapor. The system also includes a controller configured to detect an HC vapor supply condition indicative of an operating condition of the Di engine where engine vacuum is less than an appropriate level for delivering the fuel vapor to the DI engine via the vapor line; and in response to detecting the HC vapor supply condition, controlling at least one of the purge pump and the purge valve, based on the measured amount of HC, to deliver a desired amount of fuel vapor to the DI engine to decrease particulate matter (PM) produced by the DI engine.Type: ApplicationFiled: May 25, 2016Publication date: November 30, 2017Inventors: Roger C Sager, Jeffrey P Wuttke, Brett Schubring, Joseph M Dekar, James J Daley, Gregg T Black
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Publication number: 20170342919Abstract: An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor trapped in a vapor canister to an engine of the vehicle via a vapor line when engine vacuum is less than an appropriate level for delivering fuel vapor to the engine, the fuel vapor resulting from evaporation of a liquid fuel stored in a fuel tank of the engine. The EVAP control system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. The EVAP control system also includes a controller configured to, based on the measured amount of HC, control at least one of the purge pump and a purge valve to deliver a desired amount of fuel vapor to the engine.Type: ApplicationFiled: May 25, 2016Publication date: November 30, 2017Inventors: Joseph Dekar, Roger C. Sager, James J. Daley, William B. Blomquist, Jeffrey P. Wuttke, Russell J. Wakeman, Adam Fleischman, Ronald A. Yannone, JR., Luis Del Rio, Mark L. Lott, Edward Baker, Michael T. Vincent, Wei-Jun Yang, Aikaterini Tsahalou
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Patent number: 9765666Abstract: A system and method for utilizing fuel as an on-board reductant for selective catalytic reduction of NOx is provided and includes a controller for controlling an engine to produce a lean first exhaust stream and a rich second exhaust stream that are received in respective first and second passageways of a dual path aftertreatment system. The rich second exhaust stream reacts with NOx stored in a NOx storage and reduction catalyst of the second passageway to regenerate this catalyst and generate ammonia. The first exhaust stream and the second exhaust stream having the generated ammonia are combined in a downstream common passageway to form a combined lean exhaust gas stream where the ammonia carried therein is stored or used by an SCR catalyst of the common passageway for NOx reduction. The engine is subsequently controlled to produce a rich first exhaust stream and a lean second exhaust stream.Type: GrantFiled: February 9, 2016Date of Patent: September 19, 2017Assignee: FCA US LLCInventors: Michael A Smith, Craig L Dimaggio, Jeffrey P Wuttke, Andrew Brocker, Travis T Hamilton, Ken Hardman, Cody Baldwin-Squib
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Patent number: 9739761Abstract: A diagnostic system and method for diagnosing the performance of a particulate matter (PM) filter of an exhaust system each involve receiving, by a controller from at least one sensor, a gas component measurement of exhaust gas flowing through the exhaust system and the PM filter. The controller calculates a conversion efficiency of the gas component by the PM filter and compares the calculated conversion efficiency to a predetermined conversion efficiency threshold indicative of an expected conversion efficiency of a flow-through catalyst. The controller then determines whether the PM filter is cracked or damaged based on the comparison between the calculated conversion efficiency and the predetermined conversion efficiency threshold.Type: GrantFiled: December 11, 2014Date of Patent: August 22, 2017Assignee: FCA US LLCInventors: Michael A Smith, Kiran Premchand, Homayoun Ahari, Jeffrey P Wuttke, Brett Schubring, Craig L Dimaggio, Michael G Zammit, Michael T Vincent
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Publication number: 20160230632Abstract: A system and method for utilizing fuel as an on-board reductant for selective catalytic reduction of NOx is provided and includes a controller for controlling an engine to produce a lean first exhaust stream and a rich second exhaust stream that are received in respective first and second passageways of a dual path aftertreatment system. The rich second exhaust stream reacts with NOx stored in a NOx storage and reduction catalyst of the second passageway to regenerate this catalyst and generate ammonia. The first exhaust stream and the second exhaust stream having the generated ammonia are combined in a downstream common passageway to form a combined lean exhaust gas stream where the ammonia carried therein is stored or used by an SCR catalyst of the common passageway for NOx reduction. The engine is subsequently controlled to produce a rich first exhaust stream and a lean second exhaust stream.Type: ApplicationFiled: February 9, 2016Publication date: August 11, 2016Inventors: Michael A. Smith, Craig L. Dimaggio, Jeffrey P. Wuttke, Andrew Brocker, Travis T. Hamilton, Ken Hardman, Cody Baldwin-Squib
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Publication number: 20160169784Abstract: A diagnostic system and method for diagnosing the performance of a particulate matter (PM) filter of an exhaust system each involve receiving, by a controller from at least one sensor, a gas component measurement of exhaust gas flowing through the exhaust system and the PM filter. The controller calculates a conversion efficiency of the gas component by the PM filter and compares the calculated conversion efficiency to a predetermined conversion efficiency threshold indicative of an expected conversion efficiency of a flow-through catalyst. The controller then determines whether the PM filter is cracked or damaged based on the comparison between the calculated conversion efficiency and the predetermined conversion efficiency threshold.Type: ApplicationFiled: December 11, 2014Publication date: June 16, 2016Inventors: Michael A. Smith, Kiran Premchand, Homayoun Ahari, Jeffrey P. Wuttke, Brett Schubring, Craig L. Dimaggio, Michael G. Zammit, Michael T. Vincent
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Patent number: 8925300Abstract: A catalyst degradation detection method for use with a zero ceria catalyst. The method uses techniques to measure transient responses to engine control events of upstream and downstream sensors to determine catalyst degradation and performance. By measuring transient behavior, the method can determine catalyst degradation and performance based on the limited oxygen storage of precious metal catalysts that do not include added ceria or other materials with high oxygen capture rates.Type: GrantFiled: December 17, 2012Date of Patent: January 6, 2015Assignee: Chrysler Group LLCInventors: James J Daley, Robert J Jerger, Wei-Jun Yang, Jeffrey P Wuttke, Michael G Zammit, Andrew Brocker
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Publication number: 20140165537Abstract: A catalyst degradation detection method for use with a zero ceria catalyst. The method uses techniques to measure transient responses to engine control events of upstream and downstream sensors to determine catalyst degradation and performance. By measuring transient behavior, the method can determine catalyst degradation and performance based on the limited oxygen storage of precious metal catalysts that do not include added ceria or other materials with high oxygen capture rates.Type: ApplicationFiled: December 17, 2012Publication date: June 19, 2014Inventors: James J. Daley, Robert J. Jerger, Wei-Jun Yang, Jeffrey P. Wuttke, Michael G. Zammit, Andrew Brocker
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Patent number: 7658178Abstract: Ignition timing for a combustion engine may be controlled by determining the roughness of current engine operation, comparing the determined roughness with a control roughness to determine if the determined roughness is within a threshold limit of the control roughness, and changing the ignition timing in a subsequent fuel delivery event as a function of the difference between the determined roughness and the control roughness. Preferably, the ignition timing is changed at least when the determined roughness is not within the threshold limit, although other factors may be taken into account when changing the ignition timing.Type: GrantFiled: June 7, 2007Date of Patent: February 9, 2010Assignee: Chrysler Group LLCInventors: Kenneth P. DeGroot, Jeffrey P. Wuttke, Gerald Lee Kennie, Dennis W. Fett
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Publication number: 20080302331Abstract: Ignition timing for a combustion engine may be controlled by determining the roughness of current engine operation, comparing the determined roughness with a control roughness to determine if the determined roughness is within a threshold limit of the control roughness, and changing the ignition timing in a subsequent fuel delivery event as a function of the difference between the determined roughness and the control roughness. Preferably, the ignition timing is changed at least when the determined roughness is not within the threshold limit, although other factors may be taken into account when changing the ignition timing.Type: ApplicationFiled: June 7, 2007Publication date: December 11, 2008Inventors: Kenneth P. DeGroot, Jeffrey P. Wuttke, Gerald Lee Kennie, Dennis W. Fett
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Publication number: 20080017168Abstract: Fuel delivery to a combustion engine may be controlled by determining the roughness of current engine operation, comparing the determined roughness with a control roughness to determine if the determined roughness is within a threshold limit of the control roughness, and changing the fuel delivery to the engine in a subsequent fuel delivery event as a function of the difference between the determined roughness and the control roughness. Preferably, the fuel delivery is changed at least when the determined roughness is not within the threshold limit, although other factors may be taken into account when changing the fuel delivery to the engine.Type: ApplicationFiled: July 20, 2006Publication date: January 24, 2008Inventors: Kenneth P DeGroot, Jeffrey P. Wuttke, Dennis W. Fett, Gerald L. Kennie