Patents by Inventor Lubomir Baramov
Lubomir Baramov 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: 12000328Abstract: Models that employ both measurable engine parameters as well as predictable engine parameters may be used to determine when a thermostat is malfunctioning before the thermostat malfunction results in an engine breakdown. Particular models may be used to provide an estimated coolant temperature and an estimated thermostat position. The estimated coolant temperature can be compared to an actual measured engine coolant temperature. The estimated thermostat position can be evaluated with respect to what the thermostat position should be given a particular engine coolant temperature. In some cases, comparison between a healthy model and a faulty model may be used to ascertain thermostat health.Type: GrantFiled: January 5, 2023Date of Patent: June 4, 2024Assignee: Garrett Transportation I Inc.Inventors: Martin Herceg, Lubomir Baramov
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Patent number: 11788461Abstract: Systems and methods for controlling turbocharger operation by maintaining a virtual turbocharger speed calculation using airflow parameters in the context of an engine. An example uses a turbocharger speed estimator, an energy observer, and an energy controller. Optimization of turbocharger speed control, including avoidance of overspeed, while reducing wastegate actuation, can be achieved using a predictive control algorithm.Type: GrantFiled: August 3, 2021Date of Patent: October 17, 2023Assignee: Garrett Transportation I Inc.Inventor: Lubomir Baramov
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Publication number: 20230160331Abstract: Models that employ both measurable engine parameters as well as predictable engine parameters may be used to determine when a thermostat is malfunctioning before the thermostat malfunction results in an engine breakdown. Particular models may be used to provide an estimated coolant temperature and an estimated thermostat position. The estimated coolant temperature can be compared to an actual measured engine coolant temperature. The estimated thermostat position can be evaluated with respect to what the thermostat position should be given a particular engine coolant temperature. In some cases, comparison between a healthy model and a faulty model may be used to ascertain thermostat health.Type: ApplicationFiled: January 5, 2023Publication date: May 25, 2023Inventors: Martin Herceg, Lubomir Baramov
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Patent number: 11578642Abstract: Models that employ both measurable engine parameters as well as predictable engine parameters may be used to determine when a thermostat is malfunctioning before the thermostat malfunction results in an engine breakdown. Particular models may be used to provide an estimated coolant temperature and an estimated thermostat position. The estimated coolant temperature can be compared to an actual measured engine coolant temperature. The estimated thermostat position can be evaluated with respect to what the thermostat position should be given a particular engine coolant temperature. In some cases, comparison between a healthy model and a faulty model may be used to ascertain thermostat health.Type: GrantFiled: August 5, 2021Date of Patent: February 14, 2023Assignee: Garrett Transportation I Inc.Inventors: Martin Herceg, Lubomir Baramov
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Publication number: 20230040272Abstract: Models that employ both measurable engine parameters as well as predictable engine parameters may be used to determine when a thermostat is malfunctioning before the thermostat malfunction results in an engine breakdown. Particular models may be used to provide an estimated coolant temperature and an estimated thermostat position. The estimated coolant temperature can be compared to an actual measured engine coolant temperature. The estimated thermostat position can be evaluated with respect to what the thermostat position should be given a particular engine coolant temperature. In some cases, comparison between a healthy model and a faulty model may be used to ascertain thermostat health.Type: ApplicationFiled: August 5, 2021Publication date: February 9, 2023Inventors: Martin Herceg, Lubomir Baramov
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Publication number: 20230038827Abstract: Systems and methods for controlling turbocharger operation by maintaining a virtual turbocharger speed calculation using airflow parameters in the context of an engine. An example uses a turbocharger speed estimator, an energy observer, and an energy controller. Optimization of turbocharger speed control, including avoidance of overspeed, while reducing wastegate actuation, can be achieved using a predictive control algorithm.Type: ApplicationFiled: August 3, 2021Publication date: February 9, 2023Inventor: Lubomir Baramov
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Patent number: 11506138Abstract: An engine system incorporating an engine, one or more sensors, and a controller. The controller may be connected to the one or more sensors and the engine. The one or more sensors may be configured to sense one or more parameters related to operation of the engine. The controller may incorporate an air-path state estimator configured to estimate one or more air-path state parameters in the engine based on values of one or more parameters sensed by the sensors. The controller may have an on-line and an off-line portion, where the on-line portion may incorporate the air-path state estimator and the off-line portion may configure and/or calibrate a model for the air-path state estimator.Type: GrantFiled: September 10, 2019Date of Patent: November 22, 2022Assignee: Garrett Transportation I Inc.Inventors: Daniel Pachner, Dejan Kihas, Lubomir Baramov
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Patent number: 11492958Abstract: An example engine system is disclosed. The engine system may control a turbocharger of an internal combustion engine, and more particularly control a boost pressure provided by a turbocharger to an internal combustion engine. An example method for controlling a boost pressure provided by a turbocharger may include receiving a boost pressure demand and identifying a compressor speed demand to achieve the received boost pressure demand. The method may also include converting the compressor speed demand into a kinetic energy demand of the turbocharger rotating components and controlling the kinetic energy of the turbocharger rotating components to meet the kinetic energy demand by controlling power supplied by the turbine and the electric motor assist.Type: GrantFiled: December 15, 2020Date of Patent: November 8, 2022Assignee: Garrett Transportation I Inc.Inventors: Martin Herceg, Lubomir Baramov, Jaroslav Pekar
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Patent number: 11434843Abstract: Methods and systems for fault mitigation in an engine system. For ordinary operation, a set of control signals are generated after calculating airflows within the engine system using a set of flow models linked to components of the engine system, while underweighting or omitting an output of a sensor in the engine system. When a fault is identified, the set of flow models is analyzed differently by underweighting or omitting one or more flow models in favor of using the sensor output. By so doing, the engine system can continue to be operated without triggering an on-board diagnostic alert requiring cessation of operation.Type: GrantFiled: May 21, 2021Date of Patent: September 6, 2022Assignee: Garrett Transportation I Inc.Inventors: Lubomir Baramov, Jaroslav Pekar, Paul Dickinson, Tomas Poloni
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Publication number: 20220186660Abstract: An example engine system is disclosed. The engine system may control a turbocharger of an internal combustion engine, and more particularly control a boost pressure provided by a turbocharger to an internal combustion engine. An example method for controlling a boost pressure provided by a turbocharger may include receiving a boost pressure demand and identifying a compressor speed demand to achieve the received boost pressure demand. The method may also include converting the compressor speed demand into a kinetic energy demand of the turbocharger rotating components and controlling the kinetic energy of the turbocharger rotating components to meet the kinetic energy demand by controlling power supplied by the turbine and the electric motor assist.Type: ApplicationFiled: December 15, 2020Publication date: June 16, 2022Inventors: Martin HERCEG, Lubomir BARAMOV, Jaroslav PEKAR
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Publication number: 20200003142Abstract: An engine system incorporating an engine, one or more sensors, and a controller. The controller may be connected to the one or more sensors and the engine. The one or more sensors may be configured to sense one or more parameters related to operation of the engine. The controller may incorporate an air-path state estimator configured to estimate one or more air-path state parameters in the engine based on values of one or more parameters sensed by the sensors. The controller may have an on-line and an off-line portion, where the on-line portion may incorporate the air-path state estimator and the off-line portion may configure and/or calibrate a model for the air-path state estimator.Type: ApplicationFiled: September 10, 2019Publication date: January 2, 2020Inventors: Daniel Pachner, Dejan Kihas, Lubomir Baramov
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Patent number: 10415492Abstract: An engine system incorporating an engine, one or more sensors, and a controller. The controller may be connected to the one or more sensors and the engine. The one or more sensors may be configured to sense one or more parameters related to operation of the engine. The controller may incorporate an air-path state estimator configured to estimate one or more air-path state parameters in the engine based on values of one or more parameters sensed by the sensors. The controller may have an on-line and an off-line portion, where the on-line portion may incorporate the air-path state estimator and the off-line portion may configure and/or calibrate a model for the air-path state estimator.Type: GrantFiled: January 29, 2016Date of Patent: September 17, 2019Assignee: GARRETT TRANSPORTATION I INC.Inventors: Daniel Pachner, Dejan Kihas, Lubomir Baramov
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Patent number: 10072843Abstract: Methods, devices, and systems for combustion resonance suppression are described herein. One device includes a memory, and a processor configured to execute executable instructions stored in the memory to receive a number of operating conditions of a burner, determine whether resonance characteristics are present in a combustion chamber housing the burner based on the number of operating conditions of the burner, and modify at least one of an air supply and a fuel supply to the burner upon determining resonance characteristics are present in the combustion chamber.Type: GrantFiled: October 21, 2015Date of Patent: September 11, 2018Assignee: Honeywell International Inc.Inventors: Lubomir Baramov, Curtis L. Taylor
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Publication number: 20170218860Abstract: An engine system incorporating an engine, one or more sensors, and a controller. The controller may be connected to the one or more sensors and the engine. The one or more sensors may be configured to sense one or more parameters related to operation of the engine. The controller may incorporate an air-path state estimator configured to estimate one or more air-path state parameters in the engine based on values of one or more parameters sensed by the sensors. The controller may have an on-line and an off-line portion, where the on-line portion may incorporate the air-path state estimator and the off-line portion may configure and/or calibrate a model for the air-path state estimator.Type: ApplicationFiled: January 29, 2016Publication date: August 3, 2017Inventors: Daniel Pachner, Dejan Kihas, Lubomir Baramov
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Patent number: 9704116Abstract: An optimizer is used to help manage a process that has multiple consumption inputs with differing costs, multiple production outputs with differing sale prices and intermediates. The process may have storage capabilities for some consumption inputs, production outputs and intermediates. Further, there may be multiple production and consumption targets for the total amount of consumption inputs/production outputs, consumed/produced over a fixed period of time. The optimizer finds the most economical solution while staying in a region from which the contract target is reachable for any combination of uncertain fixed trajectories from pre-selected intervals.Type: GrantFiled: March 21, 2013Date of Patent: July 11, 2017Assignee: Honeywell International Inc.Inventor: Lubomir Baramov
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Publication number: 20170115004Abstract: Methods, devices, and systems for combustion resonance suppression are described herein. One device includes a memory, and a processor configured to execute executable instructions stored in the memory to receive a number of operating conditions of a burner, determine whether resonance characteristics are present in a combustion chamber housing the burner based on the number of operating conditions of the burner, and modify at least one of an air supply and a fuel supply to the burner upon determining resonance characteristics are present in the combustion chamber.Type: ApplicationFiled: October 21, 2015Publication date: April 27, 2017Inventors: Lubomir Baramov, Curtis L. Taylor
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Patent number: 9176498Abstract: A device and method calculates and sends a manipulated variable via a network to control an actuator in a process. An indication identifying when the sent manipulated variable was applied by the actuator is received, and an applied actuator signal is estimated. Using a difference between the calculated manipulated variable and the estimated applied signal, a next calculated manipulated variable is corrected prior to sending the next calculated manipulated variable to the actuator.Type: GrantFiled: September 21, 2012Date of Patent: November 3, 2015Assignee: Honeywell International Inc.Inventor: Lubomir Baramov
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Publication number: 20150168925Abstract: A process controller-optimizer with a nonlinear steady-state model includes a model based predictive controller running on a computer to receive measurements of controlled variables and disturbance variables from a process to compute manipulated variables to control the process as a function of a dynamic process model, a filter to provide an estimated state of the process to the model based predictive controller, a steady-state real-time optimizer setting economically optimal steady-state targets to the model-based predictive controller, a model adaptation tool to modify the nonlinear steady state model to be consistent with process data and to modify a linear dynamic model to be consistent with the non linear steady state model in the steady-state, and a quasi steady state estimator to provide estimates of manipulated variables and controlled variables such that they are consistent with a steady state of the process for a given disturbance.Type: ApplicationFiled: December 8, 2014Publication date: June 18, 2015Inventor: Lubomir BARAMOV
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Publication number: 20150159518Abstract: A system and method include receiving waste heat from a gas turbine, adding heat via duct firing, using the received waste heat and added heat via duct firing to create steam at multiple stages of a heat recovery steam generator, and controlling the multiple stages of the heat recovery steam generator utilizing parameters representative of heat input to each stage.Type: ApplicationFiled: December 3, 2014Publication date: June 11, 2015Inventors: Lubomir BARAMOV, Ondrej BASUS, Vladimir HAVLENA
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Patent number: 8897125Abstract: A method and system include a distributed network of filters having a topology corresponding to an interconnection map of a process to be controlled, each filter modeling a sub-process of the process. Each filter is interconnected to receive an input vector of process measurements corresponding to a local state of the process and to receive process variables. The filters are adapted to determine a communication failure and responsive to the communication failure, correlations of the local state with the state of subsystems estimated by filters that are not accessible due to the communication failure are set to zero and wherein a local state covariance is increased.Type: GrantFiled: May 23, 2012Date of Patent: November 25, 2014Assignee: Honeywell International Inc.Inventor: Lubomir Baramov