Patents by Inventor Matthew John Gerhart
Matthew John Gerhart 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: 20140352669Abstract: A method and system for providing a suitable engine torque response during a transient condition is presented. In one example, when a desired inlet manifold pressure is greater than a throttle inlet pressure of a first throttle, a second throttle positioned upstream from the first throttle is opened to increase the throttle inlet pressure. The method may provide an appropriate torque response while minimizing impact on fuel economy.Type: ApplicationFiled: May 28, 2013Publication date: December 4, 2014Applicant: Ford Global Technologies, LLCInventors: Ralph Wayne Cunningham, Matthew John Gerhart, Julia Helen Buckland, Suzanne Kay Wait, Michael Howard Shelby, Jeffrey Allen Doering, Mrdjan J. Jankovic, John Eric Rollinger, Gopichandra Surnilla, Naginder Gogna
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Publication number: 20140316675Abstract: A method to avoid over-dilution of an intake-air charge of an engine includes, during a first condition, applying at least some feedback control to the opening and closure of a valve that adjustably admits exhaust to the intake-air charge. During a second condition predictive of compressor surge, no feedback control is applied to the opening or the closure of the valve. Rather, feedforward control is applied to the closure of the valve so that stability in the engine is maintained even during surge conditions.Type: ApplicationFiled: April 18, 2013Publication date: October 23, 2014Applicant: Ford Global Technologies, LLCInventors: Julia Helen Buckland, Matthew John Gerhart, Suzanne Kay Wait, Timothy Joseph Clark, Gopichandra Surnilla, James Alfred Hilditch, Todd Anthony Rumpsa
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Publication number: 20140251285Abstract: A method may comprise correcting an intake oxygen concentration based on fuel canister vapor purge only during boosted conditions, and adjusting exhaust gas recirculation responsive to the intake oxygen concentration.Type: ApplicationFiled: March 7, 2013Publication date: September 11, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Gopichandra Surnilla, Lynn Aimee Chesney, Mark W. Peters, Timothy Joseph Clark, Matthew John Gerhart
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Patent number: 8439796Abstract: Methods and systems are provided for controlling a vehicle engine, the engine including a turbocharger and a transmission. One example method comprises, operating the transmission at a first lower gear with a first boost level, increasing the boost from the first boost level before completing a shift from the first lower gear to a second higher gear, and after completing the shift, operating the transmission at the second higher gear with the increased boost.Type: GrantFiled: August 14, 2012Date of Patent: May 14, 2013Assignee: Ford Global Technologies, LLCInventors: Jeffrey Allen Doering, John Eric Rollinger, De-Shiou Chen, Julia Helen Buckland, Suzanne Kay Wait, Matthew John Gerhart, Peter Douglas Kuechler
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Publication number: 20120309589Abstract: Methods and systems are provided for controlling a vehicle engine, the engine including a turbocharger and a transmission. One example method comprises, operating the transmission at a first lower gear with a first boost level, increasing the boost from the first boost level before completing a shift from the first lower gear to a second higher gear, and after completing the shift, operating the transmission at the second higher gear with the increased boost.Type: ApplicationFiled: August 14, 2012Publication date: December 6, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Jeffrey Allen Doering, John Eric Rollinger, De-Shiou Chen, Julia Helen Buckland, Suzanne Kay Wait, Matthew John Gerhart, Peter Douglas Kuechler
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Patent number: 8241177Abstract: Methods and systems are provided for controlling a vehicle engine, the engine including a turbocharger and a transmission. One example method comprises, operating the transmission at a first lower gear with a first boost level, increasing the boost from the first boost level before completing a shift from the first lower gear to a second higher gear, and after completing the shift, operating the transmission at the second higher gear with the increased boost.Type: GrantFiled: August 24, 2009Date of Patent: August 14, 2012Assignee: Ford Global Technologies, LLCInventors: Jeffrey Allen Doering, John Eric Rollinger, De-Shiou Chen, Julia Helen Buckland, Suzanne Kay Wait, Matthew John Gerhart, Peter Douglas Kuechler
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Publication number: 20110045948Abstract: Methods and systems are provided for controlling a vehicle engine, the engine including a turbocharger and a transmission. One example method comprises, operating the transmission at a first lower gear with a first boost level, increasing the boost from the first boost level before completing a shift from the first lower gear to a second higher gear, and after completing the shift, operating the transmission at the second higher gear with the increased boost.Type: ApplicationFiled: August 24, 2009Publication date: February 24, 2011Applicant: Ford Global Technologies, LLCInventors: Jeffrey Allen Doering, John Eric Rollinger, De-Shiou Chen, Julia Helen Buckland, Suzanne Kay Wait, Matthew John Gerhart, Peter Douglas Kuechler
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Patent number: 7293406Abstract: A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value by operating the engine with a lean air-fuel ratio and retarded ignition timing. Once the exhaust manifold reaches the predetermined temperature value, the engine is switched to operate rich and air is added via the air introduction device. The added air and rich exhaust gas burn in the exhaust, thereby generating heat and raising catalyst temperature even more rapidly. The rich operation and excess air are continued until either engine airflow increases beyond a pre-selected value, or the emission control device reaches a desired temperature value. After the emission control device reaches the desired temperature, the engine is operated substantially around stoichiometry.Type: GrantFiled: October 22, 2003Date of Patent: November 13, 2007Assignee: Ford Global Technologies LLCInventors: Donald James Lewis, James Michael Kerns, Matthew John Gerhart, Ralph Wayne Cunningham
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Patent number: 7185487Abstract: A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value by operating the engine with a lean air-fuel ratio and retarded ignition timing. Once the exhaust manifold reaches the predetermined temperature value, the engine is switched to operate rich and air is added via the air introduction device. The added air and rich exhaust gas burn in the exhaust, thereby generating heat and raising catalyst temperature even more rapidly. The rich operation and excess air are continued until either engine airflow increases beyond a pre-selected value, or the emission control device reaches a desired temperature value. After the emission control device reaches the desired temperature, the engine is operated substantially around stoichiometry.Type: GrantFiled: October 29, 2003Date of Patent: March 6, 2007Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, James Michael Kerns, Matthew John Gerhart, Ralph Wayne Cunningham
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Publication number: 20040088969Abstract: A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value by operating the engine with a lean air-fuel ratio and retarded ignition timing. Once the exhaust manifold reaches the predetermined temperature value, the engine is switched to operate rich and air is added via the air introduction device. The added air and rich exhaust gas burn in the exhaust, thereby generating heat and raising catalyst temperature even more rapidly. The rich operation and excess air are continued until either engine airflow increases beyond a pre-selected value, or the emission control device reaches a desired temperature value. After the emission control device reaches the desired temperature, the engine is operated substantially around stoichiometry.Type: ApplicationFiled: October 29, 2003Publication date: May 13, 2004Inventors: Donald James Lewis, James Michael Kerns, Matthew John Gerhart, Ralph Wayne Cunningham
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Patent number: 6715280Abstract: A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value by operating the engine with a lean air-fuel ratio and retarded ignition timing. Once the exhaust manifold reaches the predetermined temperature value, the engine is switched to operate rich and air is added via the air introduction device. The added air and rich exhaust gas burn in the exhaust, thereby generating heat and raising catalyst temperature even more rapidly. The rich operation and excess air are continued until either engine airflow increases beyond a pre-selected value, or the emission control device reaches a desired temperature value. After the emission control device reaches the desired temperature, the engine is operated substantially around stoichiometry.Type: GrantFiled: July 12, 2002Date of Patent: April 6, 2004Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, James Michael Kerns, Matthew John Gerhart, Ralph Wayne Cunningham
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Publication number: 20040006972Abstract: A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value by operating the engine with a lean air-fuel ratio and retarded ignition timing. Once the exhaust manifold reaches the predetermined temperature value, the engine is switched to operate rich and air is added via the air introduction device. The added air and rich exhaust gas burn in the exhaust, thereby generating heat and raising catalyst temperature even more rapidly. The rich operation and excess air are continued until either engine airflow increases beyond a pre-selected value, or the emission control device reaches a desired temperature value. After the emission control device reaches the desired temperature, the engine is operated substantially around stoichiometry.Type: ApplicationFiled: July 12, 2002Publication date: January 15, 2004Applicant: Ford Global Technologies, Inc.Inventors: Donald James Lewis, James Michael Kerns, Matthew John Gerhart, Ralph Wayne Cunningham
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Patent number: 6666021Abstract: A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value by operating the engine with a lean air-fuel ratio and retarded ignition timing. Once the exhaust manifold reaches the predetermined temperature value, the engine is switched to operate rich and air is added via the air introduction device. The added air and rich exhaust gas burn in the exhaust, thereby generating heat and raising catalyst temperature even more rapidly. The rich operation and excess air are continued until either engine airflow increases beyond a pre-selected value, or the emission control device reaches a desired temperature value. After the emission control device reaches the desired temperature, the engine is operated substantially around stoichiometry.Type: GrantFiled: July 12, 2002Date of Patent: December 23, 2003Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, James Michael Kerns, Matthew John Gerhart, Ralph Wayne Cunningham
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Patent number: 6640539Abstract: A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value by operating the engine with a lean air-fuel ratio and retarded ignition timing. Once the exhaust manifold reaches the predetermined temperature value, the engine is switched to operate rich and air is added via the air introduction device. The added air and rich exhaust gas burn in the exhaust, thereby generating heat and raising catalyst temperature even more rapidly. The rich operation and excess air are continued until either engine airflow increases beyond a pre-selected value, or the emission control device reaches a desired temperature value. After the emission control device reaches the desired temperature, the engine is operated substantially around stoichiometry.Type: GrantFiled: July 12, 2002Date of Patent: November 4, 2003Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, James Michael Kerns, Matthew John Gerhart, Ralph Wayne Cunningham