Patents by Inventor Richard J. ANCIMER
Richard J. ANCIMER 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).
-
Patent number: 10934922Abstract: A method for diagnosing feedgas generation capacity of an oxidation catalyst in an exhaust aftertreatment system includes: determining a first temperature value at a first location in the exhaust aftertreatment system upstream of an oxidation catalyst, the oxidation catalyst being upstream of a selective catalytic reduction catalyst; determining a space velocity of the exhaust in the oxidation catalyst; determining an estimated exotherm value of the oxidation catalyst based on the first temperature value and the space velocity; instructing a doser of the aftertreatment system to dose hydrocarbon into the oxidation catalyst; determining an in-use exotherm value of the oxidation catalyst upon insertion of the hydrocarbon into the oxidation catalyst; and determining a fault condition based upon a comparison between the estimated exotherm value and the in-use exotherm value.Type: GrantFiled: October 14, 2019Date of Patent: March 2, 2021Assignee: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Michael Haas, Yinghuan Lei, Richard J. Ancimer
-
Patent number: 10799833Abstract: An exhaust aftertreatment system includes a diesel oxidation catalyst in exhaust gas receiving communication with an engine. A selective catalytic reduction catalyst on filter (SCR on filter) is positioned downstream of the diesel oxidation catalyst. A hydrocarbon doser is configured to inject hydrocarbons into a flow of the exhaust gas upstream of the diesel oxidation catalyst. A reductant doser is configured to inject reductant into the flow of the exhaust gas upstream of the SCR on filter and downstream of the diesel oxidation catalyst. An aftertreatment controller is operatively coupled to the hydrocarbon doser. The aftertreatment controller is configured to control a dosing rate at which the hydrocarbon doser injects hydrocarbons into the flow of the exhaust gas so as to cause regeneration of the SCR on filter.Type: GrantFiled: July 29, 2016Date of Patent: October 13, 2020Assignee: Cummins Emission Solutions Inc.Inventors: Richard J. Ancimer, Michael J. Cunningham, Michael Haas, Yuhui Zha, Mert Zorlu
-
Publication number: 20200040797Abstract: A method for diagnosing feedgas generation capacity of an oxidation catalyst in an exhaust aftertreatment system includes: determining a first temperature value at a first location in the exhaust aftertreatment system upstream of an oxidation catalyst, the oxidation catalyst being upstream of a selective catalytic reduction catalyst; determining a space velocity of the exhaust in the oxidation catalyst; determining an estimated exotherm value of the oxidation catalyst based on the first temperature value and the space velocity; instructing a doser of the aftertreatment system to dose hydrocarbon into the oxidation catalyst; determining an in-use exotherm value of the oxidation catalyst upon insertion of the hydrocarbon into the oxidation catalyst; and determining a fault condition based upon a comparison between the estimated exotherm value and the in-use exotherm value.Type: ApplicationFiled: October 14, 2019Publication date: February 6, 2020Applicant: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Michael Haas, Yinghuan Lei, Richard J. Ancimer
-
Patent number: 10480384Abstract: Systems and methods are provided for feedgas diagnostics in a selective catalytic reduction (SCR) system. An example electronic system may be part of on-board diagnostic (OBD) functionality in a diesel fuel vehicle and may comprise circuits for defining and managing system conditions for hydrocarbon dosing, adjusting the dosing to a diesel oxidation catalyst (DOC) while the system is in operation, and defining a diagnostic framework based at least on exothermic properties of various components of a DOC such that a DOC may be monitored for failure and/or end of useful life (EUL). The electronic system may include a tuning circuit for calibrating the diagnostic framework.Type: GrantFiled: February 15, 2017Date of Patent: November 19, 2019Assignee: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Michael Haas, Yinghuan Lei, Richard J. Ancimer
-
Publication number: 20190323403Abstract: An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and the second passageway. The turbine is structured to receive an exhaust gas from the first passageway, generate energy using the exhaust gas flowing through the turbine and communicate the exhaust gas to the second passageway. The aftertreatment system also includes an insertion device structured to insert an exhaust reductant into the first passageway. A selective catalytic reduction system is configured to receive the exhaust gas from the second passageway and treat the exhaust gas. The first temperature can be higher than the second temperature.Type: ApplicationFiled: July 2, 2019Publication date: October 24, 2019Applicant: CUMMINS INC.Inventors: John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
-
Patent number: 10392994Abstract: An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and the second passageway. The turbine is structured to receive an exhaust gas from the first passageway, generate energy using the exhaust gas flowing through the turbine and communicate the exhaust gas to the second passageway. The aftertreatment system also includes an insertion device structured to insert an exhaust reductant into the first passageway. A selective catalytic reduction system is configured to receive the exhaust gas from the second passageway and treat the exhaust gas. The first temperature can be higher than the second temperature.Type: GrantFiled: December 2, 2015Date of Patent: August 27, 2019Assignee: Cummins, Inc.Inventors: John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
-
Patent number: 10273861Abstract: An exhaust aftertreatment system for treating exhaust flow from an internal combustion engine, and associated method, allows for independent control of exhaust flow through plural exhaust legs of the exhaust aftertreatment system. The independent control of exhaust flow is carried out by adjusting a valve positioned in each the exhaust legs based on a value of a signal generated by a flow measurement device positioned along at least one of the exhaust legs. The valves can be adjusted to force a target flow in a exhaust leg, relative flow among exhaust legs, exhaust temperature in an exhaust leg, exhaust backpressure and/or imbalance within the exhaust legs.Type: GrantFiled: May 16, 2018Date of Patent: April 30, 2019Assignee: Cummins Intellectual Property, Inc.Inventors: Colin L. Norris, Richard J. Ancimer, Axel O. zur Loye, Randy W. Nelson, Gary Charles Salemme, Ousmane Gueye, John Franklin Wright
-
Publication number: 20190001270Abstract: An exhaust aftertreatment system includes a diesel oxidation catalyst in exhaust gas receiving communication with an engine. A selective catalytic reduction catalyst on filter (SCR on filter) is positioned downstream of the diesel oxidation catalyst. A hydrocarbon doser is configured to inject hydrocarbons into a flow of the exhaust gas upstream of the diesel oxidation catalyst. A reductant doser is configured to inject reductant into the flow of the exhaust gas upstream of the SCR on filter and downstream of the diesel oxidation catalyst. An aftertreatment controller is operatively coupled to the hydrocarbon doser. The aftertreatment controller is configured to control a dosing rate at which the hydrocarbon doser injects hydrocarbons into the flow of the exhaust gas so as to cause regeneration of the SCR on filter.Type: ApplicationFiled: July 29, 2016Publication date: January 3, 2019Applicant: Cummins Emission Solutions Inc.Inventors: Richard J. Ancimer, Michael J. Cunningham, Michael Haas, Yuhui Zha, Mert Zorlu
-
Patent number: 10161325Abstract: Disclosed herein is an apparatus for managing combustion in an internal combustion engine that includes an operating condition module configured to determine an operating load of an internal combustion engine. The internal combustion engine can includes multiple banks of cylinders. The apparatus further includes a cylinder bank control module configured to select at least one bank of cylinders of the multiple banks of cylinders to be operational based on the determined operating load of the engine. The apparatus also includes a cylinder bank command module configured to generate a cylinder bank command based on a cylinder bank control instruction received from the cylinder bank control module, the cylinder bank control instruction comprising the selection of the at least one operational bank of cylinders.Type: GrantFiled: January 8, 2014Date of Patent: December 25, 2018Assignee: Cummins IP, Inc.Inventors: Axel O. Zur Loye, Colin L. Norris, Timothy P. Lutz, Richard J. Ancimer, Abhishek Mehrotra
-
Publication number: 20180258823Abstract: An exhaust aftertreatment system for treating exhaust flow from an internal combustion engine, and associated method, allows for independent control of exhaust flow through plural exhaust legs of the exhaust aftertreatment system. The independent control of exhaust flow is carried out by adjusting a valve positioned in each the exhaust legs based on a value of a signal generated by a flow measurement device positioned along at least one of the exhaust legs. The valves can be adjusted to force a target flow in a exhaust leg, relative flow among exhaust legs, exhaust temperature in an exhaust leg, exhaust backpressure and/or imbalance within the exhaust legs.Type: ApplicationFiled: May 16, 2018Publication date: September 13, 2018Applicant: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Colin L. Norris, Richard J. Ancimer, Axel O. zur Loye, Randy W. Nelson, Gary Charles Salemme, Ousmane Gueye, John Franklin Wright
-
Publication number: 20180230885Abstract: Systems and methods are provided for feedgas diagnostics in a selective catalytic reduction (SCR) system. An example electronic system may be part of on-board diagnostic (OBD) functionality in a diesel fuel vehicle and may comprise circuits for defining and managing system conditions for hydrocarbon dosing, adjusting the dosing to a diesel oxidation catalyst (DOC) while the system is in operation, and defining a diagnostic framework based at least on exothermic properties of various components of a DOC such that a DOC may be monitored for failure and/or end of useful life (EUL). The electronic system may include a tuning circuit for calibrating the diagnostic framework.Type: ApplicationFiled: February 15, 2017Publication date: August 16, 2018Applicant: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Michael Haas, Yinghuan Lei, Richard J. Ancimer
-
Patent number: 10001047Abstract: An exhaust aftertreatment system for treating exhaust flow from an internal combustion engine, and associated method, allows for independent control of exhaust flow through plural exhaust legs of the exhaust aftertreatment system. The independent control of exhaust flow is carried out by adjusting a valve positioned in each the exhaust legs based on a value of a signal generated by a flow measurement device positioned along at least one of the exhaust legs. The valves can be adjusted to force a target flow in a exhaust leg, relative flow among exhaust legs, exhaust temperature in an exhaust leg, exhaust backpressure and/or imbalance within the exhaust legs.Type: GrantFiled: August 28, 2015Date of Patent: June 19, 2018Assignee: Cumming Intellectual Property, Inc.Inventors: Colin L. Norris, Richard J. Ancimer, Axel O. zur Loye, Randy W. Nelson, Gary Charles Salemme, Ousmane Gueye, John Franklin Wright
-
Patent number: 9988999Abstract: A system and method for regeneration of an aftertreatment component are described. The disclosed method can employ any one or combination of operating modes that obtain a target condition of the exhaust gas to support or initiate regeneration of the aftertreatment device.Type: GrantFiled: December 1, 2015Date of Patent: June 5, 2018Assignee: Cummins Inc.Inventors: Richard J. Ancimer, Axel Otto zur Loye, Arvind Suresh, Colin L. Norris
-
Publication number: 20170370263Abstract: An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and the second passageway. The turbine is structured to receive an exhaust gas from the first passageway, generate energy using the exhaust gas flowing through the turbine and communicate the exhaust gas to the second passageway. The aftertreatment system also includes an insertion device structured to insert an exhaust reductant into the first passageway. A selective catalytic reduction system is configured to receive the exhaust gas from the second passageway and treat the exhaust gas. The first temperature can be higher than the second temperature.Type: ApplicationFiled: December 2, 2015Publication date: December 28, 2017Applicant: Cummins, Inc.Inventors: John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
-
Patent number: 9617883Abstract: An apparatus is disclosed, including an exhaust conditions module structured to interpret a diesel particulate filter (DPF) delta pressure value, a flow balance correlation, a NOx input value, and an exhaust flow rate value. A flow determination module is structured to determine a flow imbalance value in response to the DPF delta pressure value, the flow balance correlation, and the exhaust flow rate value. A reductant determination module is structured to determine a first reductant injection command and a second reductant injection command in response to the flow imbalance value and the NOx input value.Type: GrantFiled: February 9, 2016Date of Patent: April 11, 2017Assignee: Cummins Inc.Inventor: Richard J. Ancimer
-
Patent number: 9512761Abstract: Systems and methods for managing aftertreatment systems that include passive NOx adsorption devices and SCR catalyst elements are disclosed. Temperature generation devices upstream of the passive NOx adsorption devices facilitate control of the aftertreatment systems to improve fuel economy and NOx conversion efficiency.Type: GrantFiled: August 6, 2014Date of Patent: December 6, 2016Assignee: Cummins Inc.Inventors: Richard J. Ancimer, Mert Geveci, Michael Haas, Alok Joshi, Krishna Kamasamudram
-
NOx sensor based output disablement in response to exhaust system high frequency pressure pulsations
Patent number: 9482136Abstract: Systems, methods and apparatus are disclosed for disabling control of one or more outputs of an internal combustion engine system in response to an engine-out NOx sensor during a high frequency pressure pulsation associated with the exhaust gas at the engine-out NOx sensor. A high frequency pressure pulsation event may be determined in response to a pressure sensor measurement, or in response to operating parameters of one or more components of the system indicating high torque output conditions, and/or by a blade position of a turbine adjacent the NOx sensor indicating passage of the exhaust gas pressure pulsations to the NOx sensor.Type: GrantFiled: March 4, 2014Date of Patent: November 1, 2016Assignee: CUMMINS INC.Inventors: Richard J. Ancimer, John Franklin Wright -
Publication number: 20160160719Abstract: An apparatus is disclosed, including an exhaust conditions module structured to interpret a diesel particulate filter (DPF) delta pressure value, a flow balance correlation, a NOx input value, and an exhaust flow rate value. A flow determination module is structured to determine a flow imbalance value in response to the DPF delta pressure value, the flow balance correlation, and the exhaust flow rate value. A reductant determination module is structured to determine a first reductant injection command and a second reductant injection command in response to the flow imbalance value and the NOx input value.Type: ApplicationFiled: February 9, 2016Publication date: June 9, 2016Inventor: Richard J. Ancimer
-
Publication number: 20160084182Abstract: A system and method for regeneration of an aftertreatment component are described. The disclosed method can employ any one or combination of operating modes that obtain a target condition of the exhaust gas to support or initiate regeneration of the aftertreatment device.Type: ApplicationFiled: December 1, 2015Publication date: March 24, 2016Inventors: Richard J. Ancimer, Axel Otto zur Loye, Arvind Suresh, Colin L. Norris
-
Patent number: 9273577Abstract: An apparatus is disclosed, including an exhaust conditions module structured to interpret a diesel particulate filter (DPF) delta pressure value, a flow balance correlation, a NOx input value, and an exhaust flow rate value. A flow determination module is structured to determine a flow imbalance value in response to the DPF delta pressure value, the flow balance correlation, and the exhaust flow rate value. A reductant determination module is structured to determine a first reductant injection command and a second reductant injection command in response to the flow imbalance value and the NOx input value.Type: GrantFiled: October 21, 2013Date of Patent: March 1, 2016Assignee: Cummins Inc.Inventor: Richard J. Ancimer