Patents by Inventor Mickey R. McDaniel
Mickey R. McDaniel 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: 10927741Abstract: A method includes determining whether a urea refill event is detected, and clearing a quality accumulator value and clearing a latching abort command. The method includes determining whether urea fluid quality check abort conditions are met, and clearing the urea quality accumulator, latching the abort command, and exiting the reductant fluid quality check. In response to the abort conditions not being met, incrementing the urea quality accumulator according to an amount of urea being injected, and comparing the accumulated urea quantity to a low test threshold. The method includes, in response to the accumulated urea quantity being greater than the low test threshold, comparing the accumulated urea quantity to a high test threshold, and in response to the urea quantity being greater than the high test threshold, determining whether the a NOx exceedance is observed and clearing a urea quality error in response to the NOx exceedance not being observed.Type: GrantFiled: February 4, 2019Date of Patent: February 23, 2021Assignee: Cummins Emission Solutions Inc.Inventors: Xi Wei, David Samuel Everard, Baohua Qi, Mickey R. McDaniel, Edmund P. Hodzen, Guoqiang Li
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Publication number: 20190178133Abstract: A method includes determining whether a urea refill event is detected, and clearing a quality accumulator value and clearing a latching abort command. The method includes determining whether urea fluid quality check abort conditions are met, and clearing the urea quality accumulator, latching the abort command, and exiting the reductant fluid quality check. In response to the abort conditions not being met, incrementing the urea quality accumulator according to an amount of urea being injected, and comparing the accumulated urea quantity to a low test threshold. The method includes, in response to the accumulated urea quantity being greater than the low test threshold, comparing the accumulated urea quantity to a high test threshold, and in response to the urea quantity being greater than the high test threshold, determining whether the a NOx exceedance is observed and clearing a urea quality error in response to the NOx exceedance not being observed.Type: ApplicationFiled: February 4, 2019Publication date: June 13, 2019Inventors: Xi Wei, David Samuel Everard, Baohua Qi, Mickey R. McDaniel, Edmund P. Hodzen, Guoquian Li
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Patent number: 10315162Abstract: Systems and methods are disclosed for determining or diagnosing a reagent dosing system failure to provide sufficient reagent to an exhaust aftertreatment system that includes an SCR catalyst to satisfy a reagent dosing command.Type: GrantFiled: October 10, 2017Date of Patent: June 11, 2019Assignee: Cummins Emission Solutions Inc.Inventors: Balbahadur Singh, Clyde W. Xi, Mickey R. McDaniel, Baohua Qi, Paul C. McAvoy
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Patent number: 10196955Abstract: A method includes determining whether a urea refill event is detected, and clearing a quality accumulator value and clearing a latching abort command. The method includes determining whether urea fluid quality check abort conditions are met, and clearing the urea quality accumulator, latching the abort command, and exiting the reductant fluid quality check. In response to the abort conditions not being met, incrementing the urea quality accumulator according to an amount of urea being injected, and comparing the accumulated urea quantity to a low test threshold. The method includes, in response to the accumulated urea quantity being greater than the low test threshold, comparing the accumulated urea quantity to a high test threshold, and in response to the urea quantity being greater than the high test threshold, determining whether the a NOx exceedance is observed and clearing a urea quality error in response to the NOx exceedance not being observed.Type: GrantFiled: June 8, 2016Date of Patent: February 5, 2019Assignee: Cummins Emission Solutions Inc.Inventors: Xi Wei, David Samuel Everard, Baohua Qi, Mickey R. McDaniel, Edmund P. Hodzen, Guoquian Li
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Publication number: 20180028976Abstract: Systems and methods are disclosed for determining or diagnosing a reagent dosing system failure to provide sufficient reagent to an exhaust aftertreatment system that includes an SCR catalyst to satisfy a reagent dosing command.Type: ApplicationFiled: October 10, 2017Publication date: February 1, 2018Applicant: Cummins Emission Solutions Inc.Inventors: Balbahadur SINGH, Clyde W. XI, Mickey R. MCDANIEL, Baohua QI, Paul C. MCAVOY
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Patent number: 9839877Abstract: Systems and methods are disclosed for determining or diagnosing a reagent dosing system failure to provide sufficient reagent to an exhaust aftertreatment system that includes an SCR catalyst to satisfy a reagent dosing command.Type: GrantFiled: October 10, 2013Date of Patent: December 12, 2017Assignee: CUMMINS EMISSION SOLUTIONS INC.Inventors: Balbahadur Singh, Clyde W. Xi, Mickey R. McDaniel, Baohua Qi, Paul C. McAvoy
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Patent number: 9546585Abstract: A system for diagnosing and/or determining the performance of a reductant delivery system may include determining a flow rate offset value for the reductant delivery system. A reduced reductant flow rate may be determined for a reductant dosing command value based, at least in part, on the determined flow rate offset when reductant dosing command is non-zero. A reductant flow rate error can be determined based, at least in part, on a difference between an expected reductant flow rate value corresponding to the reductant dosing command value and the determined reduced reductant flow rate. A performance status value indicative of a performance status of the reductant delivery system may be outputted based, at least in part, on the determined first reductant flow rate error and a predetermined threshold.Type: GrantFiled: February 27, 2014Date of Patent: January 17, 2017Assignee: CUMMINS IP, INC.Inventors: Kerang Wang, Mickey R. McDaniel, Yi Yuan, Balbahadur Singh
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Publication number: 20160281569Abstract: A method includes determining whether a urea refill event is detected, and clearing a quality accumulator value and clearing a latching abort command. The method includes determining whether urea fluid quality check abort conditions are met, and clearing the urea quality accumulator, latching the abort command, and exiting the reductant fluid quality check. In response to the abort conditions not being met, incrementing the urea quality accumulator according to an amount of urea being injected, and comparing the accumulated urea quantity to a low test threshold. The method includes, in response to the accumulated urea quantity being greater than the low test threshold, comparing the accumulated urea quantity to a high test threshold, and in response to the urea quantity being greater than the high test threshold, determining whether the a NOx exceedance is observed and clearing a urea quality error in response to the NOx exceedance not being observed.Type: ApplicationFiled: June 8, 2016Publication date: September 29, 2016Inventors: Xi Wei, David Samuel Everard, Baohua Qi, Mickey R. McDaniel, Edmund P. Hodzen, Guoquian Li
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Patent number: 9382828Abstract: A method includes determining whether a urea refill event is detected, and clearing a quality accumulator value and clearing a latching abort command. The method includes determining whether urea fluid quality check abort conditions are met, and clearing the urea quality accumulator, latching the abort command, and exiting the reductant fluid quality check. In response to the abort conditions not being met, incrementing the urea quality accumulator according to an amount of urea being injected, and comparing the accumulated urea quantity to a low test threshold. The method includes, in response to the accumulated urea quantity being greater than the low test threshold, comparing the accumulated urea quantity to a high test threshold, and in response to the urea quantity being greater than the high test threshold, determining whether the a NOx exceedance is observed and clearing a urea quality error in response to the NOx exceedance not being observed.Type: GrantFiled: October 7, 2013Date of Patent: July 5, 2016Assignee: Cummins Emission Solutions Inc.Inventors: Xi Wei, David Everard, Baohua Qi, Mickey R. McDaniel, Edmund P. Hodzen, Guoquiang Li
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Publication number: 20160010529Abstract: A system for diagnosing and/or determining the performance of a reductant delivery system may include determining a flow rate offset value for the reductant delivery system. A reduced reductant flow rate may be determined for a reductant dosing command value based, at least in part, on the determined flow rate offset when reductant dosing command is non-zero. A reductant flow rate error can be determined based, at least in part, on a difference between an expected reductant flow rate value corresponding to the reductant dosing command value and the determined reduced reductant flow rate. A performance status value indicative of a performance status of the reductant delivery system may be outputted based, at least in part, on the determined first reductant flow rate error and a predetermined threshold.Type: ApplicationFiled: February 27, 2014Publication date: January 14, 2016Applicant: CUMMINS IP, INC.Inventors: Kerang Wang, Mickey R. McDaniel, Yi Yuan, Balbahadur Singh
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Publication number: 20150104363Abstract: Systems and methods are disclosed for determining or diagnosing a reagent dosing system failure to provide sufficient reagent to an exhaust aftertreatment system that includes an SCR catalyst to satisfy a reagent dosing command.Type: ApplicationFiled: October 10, 2013Publication date: April 16, 2015Applicant: Cummins Emission Solutions Inc.Inventors: Balbahadur Singh, Clyde W. Xi, Mickey R. McDaniel, Baohua Qi, Paul C. McAvoy
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Publication number: 20140033683Abstract: A method includes determining whether a urea refill event is detected, and clearing a quality accumulator value and clearing a latching abort command. The method includes determining whether urea fluid quality check abort conditions are met, and clearing the urea quality accumulator, latching the abort command, and exiting the reductant fluid quality check. In response to the abort conditions not being met, incrementing the urea quality accumulator according to an amount of urea being injected, and comparing the accumulated urea quantity to a low test threshold. The method includes, in response to the accumulated urea quantity being greater than the low test threshold, comparing the accumulated urea quantity to a high test threshold, and in response to the urea quantity being greater than the high test threshold, determining whether the a NOx exceedance is observed and clearing a urea quality error in response to the NOx exceedance not being observed.Type: ApplicationFiled: October 7, 2013Publication date: February 6, 2014Applicant: Cummins Emmision Solutions Inc.Inventors: Xi Wei, David Everard, Baohua Qi, Mickey R. McDaniel, Edmund P. Hodzen, Guoquiang Li
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Patent number: 8034291Abstract: An apparatus for introducing a reductant into an exhaust system is described. The apparatus includes a controller that generates a resulting dosing command used as an instruction to release an amount of reductant into the exhaust system. The controller includes a feedback control module that generates a weighing factor. The weighing factor is configured to be applied to a lower limit dosing command and configured to be applied to an upper limit dosing command, where the lower and upper limit dosing commands converted by the weighing factor are used by the controller to generate the resulting dosing command.Type: GrantFiled: January 23, 2008Date of Patent: October 11, 2011Assignee: Cummins Filtration IP, Inc.Inventors: Baohua Qi, Mickey R. McDaniel, Hakeem Ogunleye, Clyde Xi, Hongbin Ma
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Publication number: 20090185954Abstract: An apparatus for introducing a reductant into an exhaust system is described. The apparatus includes a controller that generates a resulting dosing command used as an instruction to release an amount of reductant into the exhaust system. The controller includes a feedback control module that generates a weighing factor. The weighing factor is configured to be applied to a lower limit dosing command and configured to be applied to an upper limit dosing command, where the lower and upper limit dosing commands converted by the weighing factor are used by the controller to generate the resulting dosing command.Type: ApplicationFiled: January 23, 2008Publication date: July 23, 2009Applicant: CUMMINS FILTRATION IP, INC.Inventors: Baohua QI, Mickey R. MCDANIEL, Hakeem OGUNLEYE, Clyde XI, Hongbin MA