Patents by Inventor Jason K. Bloms
Jason K. Bloms 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: 9371754Abstract: An after-treatment device that includes a diesel particulate filter (DPF) requiring periodic regeneration includes a sensor providing a signal indicative of a soot accumulation and at least one device providing an operating parameter indicative of a work mode of the machine. A controller determines a soot level and a readiness level based on the work mode of the machine, and further classifies the soot level relative to a desired range for initiating a regeneration event and initiates the regeneration event when the soot level falls within the desired range.Type: GrantFiled: March 12, 2009Date of Patent: June 21, 2016Assignee: Caterpillar Inc.Inventors: Jason K. Bloms, David Kapparos, Tyler V. Richards, Glenn B. Cox, Matt Leustek, Rajiv Nanjundareddy, Vadiraj P. Kulkarni
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Patent number: 9261481Abstract: A system including a nitrogen oxide sensor and a controller is provided. The nitrogen oxide sensor is configured to generate a first signal indicative of nitrogen oxides content in an exhaust gas. The controller is communicably coupled to the nitrogen oxide sensor. The controller configured to receive the first signal indicative of nitrogen oxides content in the exhaust gas. The controller is also configured to receive a second signal corresponding to an operational parameter of a power source. Further, the controller is configured to compare a derivative of the first signal with a derivative of the second signal. The controller is configured to trigger an error counter when an absolute value of the compared derivative crosses a predetermined threshold. Thereafter, the controller is configured to determine a condition of the nitrogen oxide sensor based on a count of the error counter in a predetermined period of time.Type: GrantFiled: March 15, 2013Date of Patent: February 16, 2016Assignee: Caterpillar Inc.Inventors: Brian Y. Mintah, Jason K. Bloms, Purvarag Shah, Drew D. Wackerlin
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Publication number: 20140260533Abstract: A system including a nitrogen oxide sensor and a controller is provided. The nitrogen oxide sensor is configured to generate a first signal indicative of nitrogen oxides content in an exhaust gas. The controller is communicably coupled to the nitrogen oxide sensor. The controller configured to receive the first signal indicative of nitrogen oxides content in the exhaust gas. The controller is also configured to receive a second signal corresponding to an operational parameter of a power source. Further, the controller is configured to compare a derivative of the first signal with a derivative of the second signal. The controller is configured to trigger an error counter when an absolute value of the compared derivative crosses a predetermined threshold. Thereafter, the controller is configured to determine a condition of the nitrogen oxide sensor based on a count of the error counter in a predetermined period of time.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: Caterpillar Inc.Inventors: Brian Y. Mintah, Jason K. Bloms, Purvarag Shah, Drew D. Wackerlin
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Patent number: 8336292Abstract: An exhaust component for use with a combustion engine is disclosed. The exhaust component may have a housing at least partially defining an inlet and an outlet, and a treatment device supported by the housing in communication with exhaust passing from the inlet to the outlet. The exhaust component may also have a life indicator permanently associated with at least one of the housing and the treatment device.Type: GrantFiled: November 12, 2008Date of Patent: December 25, 2012Assignee: Caterpillar Inc.Inventors: Jason K. Bloms, Mohamed Daoud, Antony J. Eager, Kevin D. Ehrenhardt, Tazio S. Grivetti, David J. Kapparos, Matthew E. Leustek, Anthony C. Rodman, Richard Severns, II, Yanchai Zhang
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Patent number: 8146349Abstract: An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passage, a particulate filter located within the exhaust passage, and a heating device located to selectively heat matter collected within the particulate filter. The exhaust system may also have a controller configured to determine an amount of matter collected within the particulate filter exceeding a threshold amount, and to activate the heating device in a first operating mode to regenerate the particulate filter based on the amount of collected matter. The controller may be further configured to detect a temperature constraining condition of the combustion engine, to determine an amount of oxygen within the flow of exhaust during the temperature constraining condition, and to activate the heating device in a second operating mode to constrain a regeneration temperature of the particulate filter based on the amount of oxygen within the flow of exhaust.Type: GrantFiled: March 31, 2008Date of Patent: April 3, 2012Assignee: Caterpiller Inc.Inventors: Jason K. Bloms, Tyler V. Richards
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Publication number: 20100229538Abstract: An after-treatment device that includes a diesel particulate filter (DPF) requiring periodic regeneration includes a sensor providing a signal indicative of a soot accumulation and at least one device providing an operating parameter indicative of a work mode of the machine. A controller determines a soot level and a readiness level based on the work mode of the machine, and further classifies the soot level relative to a desired range for initiating a regeneration event and initiates the regeneration event when the soot level falls within the desired range.Type: ApplicationFiled: March 12, 2009Publication date: September 16, 2010Applicant: Caterpillar Inc.Inventors: Jason K. Bloms, David Kapparos, Tyler V. Richards, Glenn B. Cox, Matt Leustek, Rajiv Nanjundareddy, Vadiraj P. Kulkarni
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Publication number: 20100115920Abstract: An exhaust component for use with a combustion engine is disclosed. The exhaust component may have a housing at least partially defining an inlet and an outlet, and a treatment device supported by the housing in communication with exhaust passing from the inlet to the outlet. The exhaust component may also have a life indicator permanently associated with at least one of the housing and the treatment device.Type: ApplicationFiled: November 12, 2008Publication date: May 13, 2010Inventors: Jason K. Bloms, Mohamed Daoud, Anthony J. Eager, Kevin D. Ehrenhardt, Tazio S. Grivetti, David J. Kapparos, Matthew E. Leustek, Anthony C. Rodman, Richard Severns, II, Yanchai Zhang
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Patent number: 7678015Abstract: A power train control system for a mobile machine is disclosed. The power train control system has a power source configured to produce a power output, a transmission device operatively connected to receive the power output and propel the mobile machine, and a control module. The control module is configured to receive an indication of a power demand, receive an indication of a current travel speed of the mobile machine, and reference the power demand and the current travel speed with a power train efficiency map to determine a desired power source speed. The power train control system is also configured to control operation of the transmission device to bring a speed of the power source within a predetermined amount of the desired power source speed.Type: GrantFiled: November 17, 2006Date of Patent: March 16, 2010Assignees: Caterpillar Inc., Eaton CorporationInventors: Steven J. Funke, Jason K. Bloms, Thomas J. Crowell, Scott A. Leman, James R. Weber, Jeff Skorupski, Tom Genise, Rich Nellums, Daniel G. Smedley, Donald Speranza
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Publication number: 20090241517Abstract: An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passage, a particulate filter located within the exhaust passage, and a heating device located to selectively heat matter collected within the particulate filter. The exhaust system may also have a controller configured to determine an amount of matter collected within the particulate filter exceeding a threshold amount, and to activate the heating device in a first operating mode to regenerate the particulate filter based on the amount of collected matter. The controller may be further configured to detect a temperature constraining condition of the combustion engine, to determine an amount of oxygen within the flow of exhaust during the temperature constraining condition, and to activate the heating device in a second operating mode to constrain a regeneration temperature of the particulate filter based on the amount of oxygen within the flow of exhaust.Type: ApplicationFiled: March 31, 2008Publication date: October 1, 2009Inventors: Jason K. Bloms, Tyler V. Richards
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Patent number: 7406822Abstract: A particulate trap regeneration system is provided. The system may include a particulate trap configured to remove one or more types of particulate matter from an exhaust flow of an engine. The system may also include a regeneration device configured to reduce an amount of particulate matter in the particulate trap. The system may further include a controller configured to activate the regeneration device in response to the first to occur of at least three trigger conditions.Type: GrantFiled: June 30, 2005Date of Patent: August 5, 2008Assignee: Caterpillar Inc.Inventors: Steven J. Funke, Jason K. Bloms, Andrew A. Knitt, Chandini A. M. Ammineni, Michael P. Withrow
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Publication number: 20070254771Abstract: A power train control system for a mobile machine is disclosed. The power train control system has a power source configured to produce a power output, a transmission device operatively connected to receive the power output and propel the mobile machine, and a control module. The control module is configured to receive an indication of a power demand, receive an indication of a current travel speed of the mobile machine, and reference the power demand and the current travel speed with a power train efficiency map to determine a desired power source speed. The power train control system is also configured to control operation of the transmission device to bring a speed of the power source within a predetermined amount of the desired power source speed.Type: ApplicationFiled: November 17, 2006Publication date: November 1, 2007Inventors: Steven J. Funke, Jason K. Bloms, Thomas J. Crowell, Scott A. Leman, James R. Weber, Jeffrey H. Skorupski, Thomas A. Genise, Richard A. Nellums, Daniel G. Smedley, Donald Speranza
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Patent number: 7228828Abstract: A method of controlling an engine having a valve actuation system is provided. The engine is started. A first parameter indicative of a first temperature of the engine is sensed. A second parameter indicative of a second temperature of the engine is sensed. The valve actuation system is disabled to prevent the implementation of a variation on conventional engine valve actuation timing in response to each of the first and second temperatures being below a predetermined value.Type: GrantFiled: November 15, 2005Date of Patent: June 12, 2007Assignee: Caterpillar IncInventors: Robert A. Kagy, Jason K. Bloms, Steven J. Funke
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Patent number: 6999868Abstract: Having the ability to quickly and easily test whether a variable valve mechanism is operating properly can avoid unnecessary down time and the expense associated with potentially replacing a good component on an internal combustion engine. A test can include inducing a misfire in a cylinder of the engine at least in part by commanding a change to a state of a variable valve mechanism at a predetermined timing. For instance, in the case of a diesel engine, a variable valve mechanism can be tested by closing an intake valve late so as to reduce a cylinder compression ratio to a point that autoignition of fuel does not occur, resulting in a misfire. If a misfire is detected, either audibly by a person or possibly electronically via a sensor, then proper activation of the variable valve mechanism is confirmed.Type: GrantFiled: December 10, 2003Date of Patent: February 14, 2006Assignee: Caterpillar Inc.Inventors: Steven J. Funke, Jason K. Bloms, Troy A. Parker, Mark J. Hilbert
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Patent number: 6976459Abstract: A method of controlling an engine having a valve actuation system is provided. The engine is started. A first parameter indicative of a first temperature of the engine is sensed. A second parameter indicative of a second temperature of the engine is sensed. The valve actuation system is disabled to prevent the implementation of a variation on conventional engine valve actuation timing in response to each of the first and second temperatures being below a predetermined value.Type: GrantFiled: July 15, 2003Date of Patent: December 20, 2005Assignee: Caterpillar IncInventors: Robert A. Kagy, Jason K. Bloms, Steven J. Funke
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Patent number: 6837212Abstract: Apparatuses and methods for delivering fuel to at least two combustion chambers of an engine. A fuel controller receives a first fuel quantity signal indicative of a first desired quantity of fuel to be delivered to each combustion chamber of the engine during a combustion cycle. The fuel controller transmits at least one second fuel quantity signal as a function of the first fuel quantity signal, and transmits at least one third fuel quantity signal as a function of the first fuel quantity signal. The second and third fuel quantity signals are indicative of a respective second and third desired quantities of fuel to be delivered during a combustion cycle. The sum of the fuel quantities corresponding to the second fuel quantity signals transmitted during a combustion cycle are less than the first desired fuel quantity.Type: GrantFiled: December 19, 2002Date of Patent: January 4, 2005Assignee: Caterpillar Inc.Inventors: Jason K. Bloms, Brian G. McGee, David Andrew Pierpont, Jeffrey A. L. Smith
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Publication number: 20040118377Abstract: Apparatuses and methods for delivering fuel to at least two combustion chambers of an engine. A fuel controller receives a first fuel quantity signal indicative of a first desired quantity of fuel to be delivered to each combustion chamber of the engine during a combustion cycle. The fuel controller transmits at least one second fuel quantity signal as a function of the first fuel quantity signal, and transmits at least one third fuel quantity signal as a function of the first fuel quantity signal. The second and third fuel quantity signals are indicative of a respective second and third desired quantities of fuel to be delivered during a combustion cycle. The sum of the fuel quantities corresponding to the second fuel quantity signals transmitted during a combustion cycle are less than the first desired fuel quantity.Type: ApplicationFiled: December 19, 2002Publication date: June 24, 2004Inventors: Jason K. Bloms, Brian G. McGee, David Andrew Pierpont, Jeffrey A.L. Smith