Patents by Inventor Gregory J. Hampson
Gregory J. Hampson 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: 9145815Abstract: A computerized method includes receiving signals from a particulate matter sensor relating to an amount of particulates at a point in time within a time period in a diesel engine exhaust stream, calculating one or more running statistical parameters relating to a particle mass in the diesel engine exhaust stream, determining an upper control limit for the amount of particulates, receiving a threshold for an allowable amount of particulates in the diesel engine exhaust stream, comparing the threshold to one or more of (a) a current instantaneous particulate reading from the particulate matter sensor and (b) the upper control limit for the amount of particulates, and generating an output signal when one or more of the current instantaneous particulate reading and the upper control limit for the amount of particulates are above the threshold.Type: GrantFiled: November 11, 2010Date of Patent: September 29, 2015Assignee: Honeywell International Inc.Inventors: Brian C. Krafthefer, Gary Richard O'Brien, Jr., Gregory J. Hampson
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Publication number: 20120117945Abstract: A computerized method includes receiving signals from a particulate matter sensor relating to an amount of particulates at a point in time within a time period in a diesel engine exhaust stream, calculating one or more running statistical parameters relating to a particle mass in the diesel engine exhaust stream, determining an upper control limit for the amount of particulates, receiving a threshold for an allowable amount of particulates in the diesel engine exhaust stream, comparing the threshold to one or more of (a) a current instantaneous particulate reading from the particulate matter sensor and (b) the upper control limit for the amount of particulates, and generating an output signal when one or more of the current instantaneous particulate reading and the upper control limit for the amount of particulates are above the threshold.Type: ApplicationFiled: November 11, 2010Publication date: May 17, 2012Applicant: Honeywell International Inc.Inventors: Brian C. Krafthefer, Gary Richard O'Brien, JR., Gregory J. Hampson
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Patent number: 8131495Abstract: A system includes a filter, a sensor, a processor, and a memory. The filter can be coupled to an engine exhaust and can operate in an accumulating mode during which particulate matter (PM) from the engine is trapped and also operate in a regenerating mode during which PM in the filter is emitted. The sensor is coupled to a discharge port of the filter and has an output to provide a sensor signal based on a concentration of PM in the filtered exhaust. The processor is coupled to receive the sensor signal and operable to determine at least one of a base level for the sensor signal during the accumulating mode and a regenerate level for the sensor signal during the regenerating mode, and operable to determine a calibration value for the sensor using at least one of the base level and the regenerate level. The memory stores the calibration value.Type: GrantFiled: August 19, 2008Date of Patent: March 6, 2012Assignee: Honeywell International Inc.Inventors: Brian C. Krafthefer, Gregory J. Hampson
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Publication number: 20100049462Abstract: A system includes a filter, a sensor, a processor, and a memory. The filter can be coupled to an engine exhaust and can operate in an accumulating mode during which particulate matter (PM) from the engine is trapped and also operate in a regenerating mode during which PM in the filter is emitted. The sensor is coupled to a discharge port of the filter and has an output to provide a sensor signal based on a concentration of PM in the filtered exhaust. The processor is coupled to receive the sensor signal and operable to determine at least one of a base level for the sensor signal during the accumulating mode and a regenerate level for the sensor signal during the regenerating mode, and operable to determine a calibration value for the sensor using at least one of the base level and the regenerate level. The memory stores the calibration value.Type: ApplicationFiled: August 19, 2008Publication date: February 25, 2010Applicant: Honeywell International Inc.Inventors: Brian C. Krafthefer, Gregory J. Hampson
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Patent number: 7467614Abstract: Systems and methods for using pedal position and/or pedal change rate in the fuel side and/or air side control of an engine. By knowing the pedal position and/or pedal rate, an engine controller may anticipate future fuel and/or air needs of the engine, and adjust the fuel profile and/or air profile to meet those anticipated needs. This may help improve the responsiveness, performance and emissions of the engine.Type: GrantFiled: December 29, 2004Date of Patent: December 23, 2008Assignee: Honeywell International Inc.Inventors: Gregory E. Stewart, Syed M. Shahed, Francesco Borrelli, Gregory J. Hampson
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Patent number: 7328577Abstract: A multivariable controller that models the interaction between groups of sensors and groups of actuators during the operation of an engine. By accounting for the interactive effects that a group of actuators has on a sensor or group of sensors, improved system performance may be achieved. When emission sensors are used, such as NOX and/or PM sensors, the multivariable controller may help control the various engine actuators to reduce emissions of the engine.Type: GrantFiled: December 29, 2004Date of Patent: February 12, 2008Assignee: Honeywell International Inc.Inventors: Gregory E. Stewart, Soumitri N. Kolavennu, Francesco Borrelli, Gregory J. Hampson, Syed M. Shahed, Tariq Samad, Michael L. Rhodes
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Patent number: 7182075Abstract: A flow control mechanism connected to the intake and exhaust systems of an engine. The mechanism may achieve recirculation of exhaust gases despite varying differential pressures or delta pressures between the systems, particularly since intake pressures may often exceed exhaust pressures. Pressure sensors may be situated proximate to the input and output of the flow control mechanism. There may a flow sensor proximate to the flow control mechanism. Cylinder pressure or pulse sensors may be situated in or about the engine. A processor may be connected to various sensors and provide prompt active control of a valve or like device in the flow control mechanism. Such valve may operate sufficiently quickly so as to prevent backflow from the intake system into the exhaust system upon sudden pressure changes in the systems. The quickness of the active valve control may also permit recirculating stipulated amounts of exhaust gas to each cylinder.Type: GrantFiled: December 7, 2004Date of Patent: February 27, 2007Assignee: Honeywell International Inc.Inventors: Syed M. Shahed, Gregory J. Hampson
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Patent number: 7155334Abstract: Systems and methods for controlling an engine using feedback from one or more sensors are disclosed. An illustrative control system for controlling a diesel engine may include one or more post-combustion sensors adapted to directly sense at least one constituent of exhaust gasses emitted from the exhaust manifold of the engine, and a state observer for estimating the internal state of the diesel engine based on feedback signals received from the post-combustion sensors and from subsequent use of the estimated state in a controller that sends the actuator setpoints. The post-combustion sensors can be configured to directly measure emissions such as oxides of nitrogen (NOx) and/or particulate matter (PM) within the exhaust stream, and provide such information to a state observer that, in turn, updates an internal dynamical state based on these measurements.Type: GrantFiled: September 29, 2005Date of Patent: December 26, 2006Assignee: Honeywell International Inc.Inventors: Gregory E. Stewart, Soumitri N. Kolavennu, Francesco Borrelli, Gregory J. Hampson, Syed M. Shahed, Tariq Samad, Michael L. Rhodes
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Patent number: RE44452Abstract: Systems and methods for using pedal position and/or pedal change rate in the fuel side and/or air side control of an engine. By knowing the pedal position and/or pedal rate, an engine controller may anticipate future fuel and/or air needs of the engine, and adjust the fuel profile and/or air profile to meet those anticipated needs. This may help improve the responsiveness, performance and emissions of the engine.Type: GrantFiled: December 22, 2010Date of Patent: August 27, 2013Assignee: Honeywell International Inc.Inventors: Gregory Stewart, Syed M. Shahed, Francesco Borrelli, Gregory J. Hampson