Patents by Inventor Timothy Stolzenfeld
Timothy Stolzenfeld 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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Patent number: 11555919Abstract: A system includes a computer including a processor and a memory. The memory includes instructions such that the processor is programmed to: receive, from a radar sensor of a vehicle, radar data indicative of a stationary object proximate to the radar sensor; receive, from a non-radar sensor of the vehicle, vehicle state data indicative of a vehicle state, the vehicle state data indicative of at least a longitudinal velocity and a yaw rate of the vehicle; determine an orientation estimate and an offset estimate of the radar sensor based on the radar data and the vehicle state data; and determine whether to actuate a vehicle system based on at least one of the orientation estimate or the offset estimate.Type: GrantFiled: October 7, 2019Date of Patent: January 17, 2023Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Douglas James McEwan, Timothy Stolzenfeld
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Publication number: 20210103050Abstract: A system includes a computer including a processor and a memory. The memory includes instructions such that the processor is programmed to: receive, from a radar sensor of a vehicle, radar data indicative of a stationary object proximate to the radar sensor; receive, from a non-radar sensor of the vehicle, vehicle state data indicative of a vehicle state, the vehicle state data indicative of at least a longitudinal velocity and a yaw rate of the vehicle; determine an orientation estimate and an offset estimate of the radar sensor based on the radar data and the vehicle state data; and determine whether to actuate a vehicle system based on at least one of the orientation estimate or the offset estimate.Type: ApplicationFiled: October 7, 2019Publication date: April 8, 2021Applicant: Ford Global Technologies, LLCInventors: Douglas James McEwan, Timothy Stolzenfeld
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Patent number: 10823092Abstract: Methods and systems are provided for diagnosing an exhaust waste-gate valve via an electric boost assist motor of an electric turbocharger. Degradation of the waste-gate valve is inferred based on the motor torque profile of the motor after commanding the waste-gate valve to an open or closed position on a torque transient. Deviation of the motor torque profile from the expected profile is used to infer if the valve is stuck open or closed, and actions are taken accordingly.Type: GrantFiled: January 24, 2019Date of Patent: November 3, 2020Assignee: Ford Global Technologies, LLCInventors: Michael Bastanipour, Nicholas Herhusky, Timothy Stolzenfeld, Baitao Xiao
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Patent number: 10744892Abstract: Methods and systems are provided for expediting charging of a battery before entry into a zero emissions zone. In one example, the battery is charged with a ratio of motor torque drawn from a first electric motor of an electric turbocharger and a second electric motor of an HEV driveline. The ratio is coordinated with adjustments to an exhaust waste-gate and an intake throttle so as to maintain operator torque demand and propel the vehicle while charging the battery.Type: GrantFiled: November 15, 2017Date of Patent: August 18, 2020Assignee: Ford Global Technologies, LLCInventors: David Bell, Julia Helen Buckland, Tyler Kelly, Timothy Stolzenfeld, Baitao Xiao
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Publication number: 20200240334Abstract: Methods and systems are provided for diagnosing an exhaust waste-gate valve via an electric boost assist motor of an electric turbocharger. Degradation of the waste-gate valve is inferred based on the motor torque profile of the motor after commanding the waste-gate valve to an open or closed position on a torque transient. Deviation of the motor torque profile from the expected profile is used to infer if the valve is stuck open or closed, and actions are taken accordingly.Type: ApplicationFiled: January 24, 2019Publication date: July 30, 2020Inventors: Michael Bastanipour, Nicholas Herhusky, Timothy Stolzenfeld, Baitao Xiao
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Patent number: 10605180Abstract: Methods and systems are provided for coordinated control of a compound boosting system, including a first compressor staged upstream of a second compressor in an engine intake. In one example, a method may include operating the second, downstream compressor in steady-state to achieve an overall pressure ratio across the compound boosting system while operating the first, upstream compressor transiently, based on an airflow shortfall at the downstream compressor. A timing and amount of electric assistance provided to transiently operate the first, upstream compressor may be adjusted dynamically as the pressure ratio across the second compressor changes.Type: GrantFiled: August 31, 2017Date of Patent: March 31, 2020Assignee: Ford Global Technologies, LLCInventors: Baitao Xiao, Mrdjan J. Jankovic, Julia H. Buckland, David Bell, Tyler Kelly, Timothy Stolzenfeld, John Eric Rollinger
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Patent number: 10502167Abstract: Methods and systems are provided for cleaning an exhaust particulate filter by routing air via the exhaust particulate filter during a vehicle-off condition. In one example, during vehicle-off conditions, a turbocharger may be reverse rotated via an electric motor or an engine may be reverse rotated via an electric machine to route air via the exhaust particulate filter and the soot collected from the particulate filter may then be deposited on an air filter coupled to the intake manifold. During a subsequent engine start, the soot from the intake air filter may be routed to the engine cylinders for combustion.Type: GrantFiled: December 17, 2018Date of Patent: December 10, 2019Assignee: Ford Global Technologies, LLCInventors: Douglas Raymond Martin, Tyler Kelly, Timothy Stolzenfeld
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Patent number: 10487757Abstract: Methods and systems for operating an engine that includes four compressors for two cylinder banks are described. In one example, output of two compressors and positions of valves are adjusted responsive to an engine air flow amount to prevent air from back flowing through a compressor. Output from the two compressors may be combined for higher engine air flow amounts.Type: GrantFiled: October 23, 2017Date of Patent: November 26, 2019Assignee: Ford Global Technologies, LLCInventors: Tyler Kelly, Timothy Stolzenfeld
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Patent number: 10465575Abstract: Methods and systems are provided for warming an engine and/or engine fluids. In one example, a method may comprise powering on an electric motor of an intake boost device to generate heat, circulating coolant and/or engine oil through the boost device to absorb the heat produced by the boost device, and then flowing the coolant and/or engine oil to the engine to transfer the heat absorbed from the boost device to the engine. In this way, an engine may be warmed without running the engine rich by using the heat generated by the electric motor of the boost device to warm the engine.Type: GrantFiled: November 17, 2017Date of Patent: November 5, 2019Assignee: Ford Global Technologies, LLCInventors: Tyler Kelly, Baitao Xiao, David Bell, Julia Helen Buckland, Timothy Stolzenfeld, Gregory Patrick McConville
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Patent number: 10422289Abstract: Methods and systems are provided for coordinated control of a compound boosting system, including a first compressor staged upstream of a second compressor in an engine intake. In one example, a method may include operating the second, downstream compressor in steady-state to achieve an overall pressure ratio across the compound boosting system while operating the first, upstream compressor transiently, based on an airflow shortfall at the downstream compressor. A timing and amount of electric assistance provided to transiently operate the first, upstream compressor may be adjusted dynamically as the pressure ratio across the second compressor changes.Type: GrantFiled: August 31, 2017Date of Patent: September 24, 2019Assignee: Ford Global Technologies, LLCInventors: Baitao Xiao, David Bell, Tyler Kelly, Timothy Stolzenfeld, Julia Helen Buckland
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Publication number: 20190153916Abstract: Methods and systems are provided for warming an engine and/or engine fluids. In one example, a method may comprise powering on an electric motor of an intake boost device to generate heat, circulating coolant and/or engine oil through the boost device to absorb the heat produced by the boost device, and then flowing the coolant and/or engine oil to the engine to transfer the heat absorbed from the boost device to the engine. In this way, an engine may be warmed without running the engine rich by using the heat generated by the electric motor of the boost device to warm the engine.Type: ApplicationFiled: November 17, 2017Publication date: May 23, 2019Inventors: Tyler Kelly, Baitao Xiao, David Bell, Julia Helen Buckland, Timothy Stolzenfeld, Gregory Patrick McConville
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Publication number: 20190143821Abstract: Methods and systems are provided for expediting charging of a battery before entry into a zero emissions zone. In one example, the battery is charged with a ratio of motor torque drawn from a first electric motor of an electric turbocharger and a second electric motor of an HEV driveline. The ratio is coordinated with adjustments to an exhaust waste-gate and an intake throttle so as to maintain operator torque demand and propel the vehicle while charging the battery.Type: ApplicationFiled: November 15, 2017Publication date: May 16, 2019Inventors: David Bell, Julia Helen Buckland, Tyler Kelly, Timothy Stolzenfeld, Baitao Xiao
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Publication number: 20190120150Abstract: Methods and systems for operating an engine that includes four compressors for two cylinder banks are described. In one example, output of two compressors and positions of valves are adjusted responsive to an engine air flow amount to prevent air from back flowing through a compressor. Output from the two compressors may be combined for higher engine air flow amounts.Type: ApplicationFiled: October 23, 2017Publication date: April 25, 2019Inventors: Tyler Kelly, Timothy Stolzenfeld
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Publication number: 20190120180Abstract: Methods and systems are provided for cleaning an exhaust particulate filter by routing air via the exhaust particulate filter during a vehicle-off condition. In one example, during vehicle-off conditions, a turbocharger may be reverse rotated via an electric motor or an engine may be reverse rotated via an electric machine to route air via the exhaust particulate filter and the soot collected from the particulate filter may then be deposited on an air filter coupled to the intake manifold. During a subsequent engine start, the soot from the intake air filter may be routed to the engine cylinders for combustion.Type: ApplicationFiled: December 17, 2018Publication date: April 25, 2019Inventors: Douglas Raymond Martin, Tyler Kelly, Timothy Stolzenfeld
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Publication number: 20190063348Abstract: Methods and systems are provided for coordinated control of a compound boosting system, including a first compressor staged upstream of a second compressor in an engine intake. In one example, a method may include operating the second, downstream compressor in steady-state to achieve an overall pressure ratio across the compound boosting system while operating the first, upstream compressor transiently, based on an airflow shortfall at the downstream compressor. A timing and amount of electric assistance provided to transiently operate the first, upstream compressor may be adjusted dynamically as the pressure ratio across the second compressor changes.Type: ApplicationFiled: August 31, 2017Publication date: February 28, 2019Inventors: Baitao Xiao, David Bell, Tyler Kelly, Timothy Stolzenfeld, Julia Helen Buckland
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Publication number: 20190063347Abstract: Methods and systems are provided for coordinated control of a compound boosting system, including a first compressor staged upstream of a second compressor in an engine intake. In one example, a method may include operating the second, downstream compressor in steady-state to achieve an overall pressure ratio across the compound boosting system while operating the first, upstream compressor transiently, based on an airflow shortfall at the downstream compressor. A timing and amount of electric assistance provided to transiently operate the first, upstream compressor may be adjusted dynamically as the pressure ratio across the second compressor changes.Type: ApplicationFiled: August 31, 2017Publication date: February 28, 2019Inventors: Baitao Xiao, Mrdjan J. Jankovic, Julia H. Buckland, David Bell, Tyler Kelly, Timothy Stolzenfeld, John Eric Rollinger
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Patent number: 10156211Abstract: Methods and systems are provided for cleaning an exhaust particulate filter by routing air via the exhaust particulate filter during a vehicle-off condition. In one example, during vehicle-off conditions, a turbocharger may be reverse rotated via an electric motor or an engine may be reverse rotated via an electric machine to route air via the exhaust particulate filter and the soot collected from the particulate filter may then be deposited on an air filter coupled to the intake manifold. During a subsequent engine start, the soot from the intake air filter may be routed to the engine cylinders for combustion.Type: GrantFiled: August 11, 2017Date of Patent: December 18, 2018Assignee: Ford Global Technologies, LLCInventors: Douglas Raymond Martin, Tyler Kelly, Timothy Stolzenfeld
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Patent number: 10100790Abstract: Methods and systems are provided for diagnosing an air filter for a vehicle. In one example, a method may include actuating a motor to flow air through the air filter during engine off, and indicating air filter replacement based on an air pressure measurement while actuating the motor.Type: GrantFiled: August 22, 2017Date of Patent: October 16, 2018Assignee: Ford Global Technologies, LLCInventors: Baitao Xiao, David Bell, Julia Helen Buckland, Timothy Stolzenfeld