Patents by Inventor Damon R. Frisch
Damon R. Frisch 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: 9726732Abstract: A system and method for estimating internal parameters of a lithium-ion battery to provide a reliable battery state-of-charge estimate. The method uses a two RC-pair equivalent battery circuit model to estimate the battery parameters, including a battery open circuit voltage, an ohmic resistance, a double layer capacitance, a charge transfer resistance, a diffusion resistance and a diffusion capacitance. The method further uses the equivalent circuit model to provide a difference equation from which the battery parameters are adapted, and calculates the battery parameters from the difference equation.Type: GrantFiled: June 22, 2010Date of Patent: August 8, 2017Assignee: GM Global Technology Operations LLCInventors: Jian Lin, Xidong Tang, Brian J. Koch, Joseph M. Lograsso, Damon R. Frisch, Rezina S. Nabi
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Patent number: 9575128Abstract: Adaptive estimation techniques to create a battery state estimator to estimate power capabilities of the battery pack in a vehicle. The estimator adaptively updates circuit model parameters used to calculate the voltage states of the ECM of a battery pack. The adaptive estimation techniques may also be used to calculate a solid-state diffusion voltage effects within the battery pack. The adaptive estimator is used to increase robustness of the calculation to sensor noise, modeling error, and battery pack degradation.Type: GrantFiled: March 12, 2013Date of Patent: February 21, 2017Assignee: GM Global Technology Operations LLCInventors: Patrick Frost, Brian J. Koch, Damon R. Frisch, Brett B. Stawinski, Patricia M. Laskowsky, Kurt M. Johnson, Robert C. Baraszu
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Patent number: 9535129Abstract: System and methods for estimating a capacity of a battery are presented. In certain embodiments, charge and discharge current throughput data may be separately accumulated during operation of a battery system (e.g., during a charge sustaining operation of vehicle associated with the battery system). Charge and discharge voltage-based state of charge movement data may be further separately accumulated. Upon accumulating sufficient data, estimated charge and discharge battery capacities may be determined based on the accumulated data.Type: GrantFiled: June 17, 2014Date of Patent: January 3, 2017Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Kurt M. Johnson, Patrick Frost, Joon Hwang, Damon R. Frisch
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Patent number: 9419314Abstract: System and methods for determining battery system power capability in a vehicle are presented. Peak power capability estimation systems and methods disclosed herein may compensate regressed parameters in a battery system circuit model for an effect of current magnitude. Utilizing the disclosed methods for accurately estimating peak power capability of a battery system may provide for, among other things, improved battery system performance modeling and/or improved battery system control and management decisions.Type: GrantFiled: May 12, 2014Date of Patent: August 16, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Brian J. Koch, Brett B. Stawinski, Patrick Frost, Damon R. Frisch, John E. Novak
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Patent number: 9395327Abstract: A battery system may include a plurality of subdivisions, such as battery cells or sub-packs. A measurement system configured to determine a subdivision electrical parameter associated with each of a plurality of subdivisions. A battery control may identify a subdivision satisfying a criterion based on the plurality of subdivision electrical parameters. According to some embodiments, the battery control system may determine a ratio of the subdivision electrical parameter of the identified subdivision to the electrical parameter of the battery pack. The ratio may be used to scale the electrical parameter associated with the battery pack by the ratio. According to other embodiments, the subdivision electrical parameter associated with the identified subdivision may be provided to a battery state estimation system. The scaled electrical parameter or the electrical parameter associated with the identified subdivision may be used by a battery state estimation system to generate an estimated battery state.Type: GrantFiled: November 30, 2012Date of Patent: July 19, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Robert C. Baraszu, Kurt M. Johnson, Zachary D. Bylsma, Damon R. Frisch, Wei Liu, David S. Maxwell
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Patent number: 9340121Abstract: A method and system for heating a vehicle battery, such as the type used for vehicle propulsion in a hybrid electric vehicle (HEV). Depending on the battery chemistry involved, such batteries may not perform well in extremely cold environments. For instance, a lithium-ion battery can exhibit a high internal resistance when the battery is extremely cold, which in turn can negatively affect the available power or other capabilities of the battery. According to an exemplary embodiment, the method and system take advantage of the high internal resistance in a cold vehicle battery by purposely cycling electrical current in and/or out of the battery so that heat is created. This heat warms up the vehicle battery and thereby improves its overall performance and capabilities.Type: GrantFiled: April 14, 2011Date of Patent: May 17, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jonathan R. Schwarz, Gregory E. Smith, Damon R. Frisch, Ian L. Hanna, Brian J. Koch
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Patent number: 9285432Abstract: A method and system for manipulating, adjusting or otherwise controlling a state-of-charge (SOC) operating range for a high voltage vehicle battery, such as the type used for hybrid or electric vehicle propulsion. By providing a dynamic SOC operating range that changes in response to changing battery conditions, the battery performance may be improved so that the battery life is extended. Depending on the particular embodiment, the dynamic SOC operating range may have different combinations of hard and/or soft boundaries or limits.Type: GrantFiled: July 26, 2011Date of Patent: March 15, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jonathan R. Schwarz, Gregory E. Smith, Damon R. Frisch, Brian J. Koch, James C. Gibbs, Brandon R. Jones
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Patent number: 9267995Abstract: Systems and methods for improvements in battery state of charge accuracy, charge termination consistency, capacity estimation, and energy delivery consistency. More specifically, embodiments herein detail systems and methods using an algorithm to calculate the change in state of charge for a given voltage change (dSOC/dV) at a given temperature in a region around the present voltage measurement or estimation and to set a signal indicating when the measurement should not be used due to potential error.Type: GrantFiled: December 18, 2012Date of Patent: February 23, 2016Assignee: GM Global Technology Operations LLCInventors: Kurt M. Johnson, Brett B. Stawinski, Brian J. Koch, Damon R. Frisch, Patrick Frost
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Publication number: 20150364936Abstract: System and methods for estimating a capacity of a battery are presented. In certain embodiments, charge and discharge current throughput data may be separately accumulated during operation of a battery system (e.g., during a charge sustaining operation of vehicle associated with the battery system). Charge and discharge voltage-based state of charge movement data may be further separately accumulated. Upon accumulating sufficient data, estimated charge and discharge battery capacities may be determined based on the accumulated data.Type: ApplicationFiled: June 17, 2014Publication date: December 17, 2015Inventors: KURT M. JOHNSON, PATRICK FROST, JOON HWANG, DAMON R. FRISCH
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Patent number: 9211802Abstract: System and methods for identifying a weak subdivision in a battery system are presented. In certain embodiments, a system may include a battery pack that includes multiple subdivisions. A measurement system may be configured to determine multiple subdivision electrical parameters associated with the subdivisions. A battery control system may identify a weakest subdivision based one on or more calculated derivative ratios of a subdivision electrical parameter associated with one subdivision of the battery pack relative to a subdivision electrical parameter associated with another subdivision.Type: GrantFiled: December 14, 2012Date of Patent: December 15, 2015Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Robert C. Baraszu, Kurt M. Johnson, Damon R. Frisch
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Publication number: 20150321572Abstract: System and methods for determining battery system power capability in a vehicle are presented. Peak power capability estimation systems and methods disclosed herein may compensate regressed parameters in a battery system circuit model for an effect of current magnitude. Utilizing the disclosed methods for accurately estimating peak power capability of a battery system may provide for, among other things, improved battery system performance modeling and/or improved battery system control and management decisions.Type: ApplicationFiled: May 12, 2014Publication date: November 12, 2015Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: BRIAN J. KOCH, BRETT B. STAWINSKI, PATRICK FROST, DAMON R. FRISCH, JOHN E. NOVAK
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Patent number: 9145059Abstract: A method and system for use with a vehicle battery pack having a number of individual battery cells, where the method estimates, extrapolates or otherwise determines individual cell resistances. According to an exemplary embodiment, the method and system use a voltage and temperature reading for each of the individual battery cells, as well as a voltage and current reading for the overall battery pack to determine one or more cell resistance values, such as a minimum and maximum cell resistance for the battery pack. This approach relies upon temperature deviations in the battery pack to make assumptions or estimates regarding individual battery cell resistances. By having individual cell resistance values—instead of using an overall pack resistance value and building in a buffer to account for cell variations—better and more accurate cell-level data can be obtained that, in turn, can improve charging, discharging, cell balancing and/or other battery-related processes.Type: GrantFiled: September 9, 2011Date of Patent: September 29, 2015Assignee: GM Global Technology Operations LLCInventors: James C. Gibbs, Joseph Bisbing, Kurt M. Johnson, Damon R. Frisch, Brian J. Koch
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Patent number: 9130248Abstract: A method for modeling changes in the state of charge vs. open circuit voltage (SOC-OCV) curve for a lithium-ion battery cell as it ages. During battery pack charging, voltage and current data are gathered for a battery cell. A set of state equations are used to determine the stoichiometry and state of charge of the cathode half-cell based on the charging current profile over time. The voltage and current data, along with the stoichiometry and state of charge of the cathode half-cell, are then used to estimate maximum and minimum solid concentration values at the anode, using an error function parameter regression/optimization. With stoichiometric conditions at both the cathode and anode calculated, the cell's capacity and a new SOC-OCV curve can be determined.Type: GrantFiled: May 25, 2012Date of Patent: September 8, 2015Assignee: GM Global Technology Operations LLCInventors: Patricia M. Laskowsky, Brian J. Koch, Damon R. Frisch, Ramesh Rebba, Kurt M. Johnson
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Patent number: 9065278Abstract: Systems and methods for estimating the relative capacity of individual battery subdivisions in a battery system are presented. In some embodiments, a system may include calculation system configured to analyze the electrical parameters to generate derivative values of the parameters over a period of time. The calculation system may further calculate summation values associated with individual battery subdivisions based upon the derivate values. A battery control system may utilize the summation values to generate one or more commands configured to control an aspect of an operation of the battery pack based on using the summation values. The summation values associated with battery subdivisions may be used to determine a relative capacity for storing electrical energy, according to some embodiments. The determination of relative capacity may be used by a control system to prevent over-discharge of a battery subdivision having the lowest energy storage capacity.Type: GrantFiled: January 22, 2013Date of Patent: June 23, 2015Assignee: GM Global Technology Operations LLCInventors: Robert C. Baraszu, Kurt M. Johnson, Zachary D. Bylsma, Damon R. Frisch, George Robison, Ashley McAllister
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Patent number: 8937452Abstract: A system and method for controlling a state-of-charge (SOC) of a vehicle battery, such as a high-voltage battery used by a hybrid electric vehicle (HEV) for vehicle propulsion, so that the SOC is maintained within a desired SOC range that is temperature-dependent. In an exemplary embodiment, the system and method use a battery temperature prediction to determine a desired SOC range, and then control the amount of charge on the vehicle battery such that the SOC is maintained within the desired SOC range. As the battery temperature prediction goes lower (i.e., as it gets colder), the desired SOC range may need to be adjusted or shifted upwards in order to account for increased internal battery resistance and to ensure that the vehicle battery has enough power to start the vehicle. Similarly, as the battery temperature prediction goes higher (i.e., as it gets warmer), the desired SOC range may need to be adjusted or shifted downwards in order to reduce degradation effects and improve battery.Type: GrantFiled: February 4, 2011Date of Patent: January 20, 2015Assignee: GM Global Technology Operations LLCInventors: Jonathan R. Schwarz, Gregory E. Smith, Ian L. Hanna, Damon R. Frisch
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Publication number: 20140278167Abstract: Adaptive estimation techniques to create a battery state estimator to estimate power capabilities of the battery pack in a vehicle. The estimator adaptively updates circuit model parameters used to calculate the voltage states of the ECM of a battery pack. The adaptive estimation techniques may also be used to calculate a solid-state diffusion voltage effects within the battery pack. The adaptive estimator is used to increase robustness of the calculation to sensor noise, modeling error, and battery pack degradation.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Applicant: GM Global Technology Operations LLCInventors: Patrick Frost, Brian J. Koch, Damon R. Frisch, Brett B. Stawinski, Patricia M. Laskowsky, Kurt M. Johnson, Robert C. Baraszu
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Patent number: 8802301Abstract: An electrolyte for a lithium ion battery includes a vitreous eutectic mixture represented by the formula AxBy, where A is a salt chosen from a lithium fluoroalkylsulfonimide or a lithium fluoroarylsulfonimide, B is a solvent chosen from an alkylsulfonamide or an arylsulfonamide, and x and y are the mole fractions of A and B, respectively.Type: GrantFiled: October 11, 2010Date of Patent: August 12, 2014Assignee: GM Global Technology Operations LLCInventors: Ion C. Halalay, Damon R. Frisch, Olt E. Geiculescu, Darryl D Desmarteau, Stephen E Creager, Changqing Lu
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Publication number: 20140203785Abstract: Systems and methods for estimating the relative capacity of individual battery subdivisions in a battery system are presented. In some embodiments, a system may include calculation system configured to analyze the electrical parameters to generate derivative values of the parameters over a period of time. The calculation system may further calculate summation values associated with individual battery subdivisions based upon the derivate values. A battery control system may utilize the summation values to generate one or more commands configured to control an aspect of an operation of the battery pack based on using the summation values. The summation values associated with battery subdivisions may be used to determine a relative capacity for storing electrical energy, according to some embodiments. The determination of relative capacity may be used by a control system to prevent over-discharge of a battery subdivision having the lowest energy storage capacity.Type: ApplicationFiled: January 22, 2013Publication date: July 24, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: ROBERT C. BARASZU, KURT M. JOHNSON, ZACHARY D. BYLSMA, DAMON R. FRISCH, GEORGE ROBISON, ASHLEY MCALLISTER
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Publication number: 20140167776Abstract: System and methods for identifying a weak subdivision in a battery system are presented. In certain embodiments, a system may include a battery pack that includes multiple subdivisions. A measurement system may be configured to determine multiple subdivision electrical parameters associated with the subdivisions. A battery control system may identify a weakest subdivision based one on or more calculated derivative ratios of a subdivision electrical parameter associated with one subdivision of the battery pack relative to a subdivision electrical parameter associated with another subdivision.Type: ApplicationFiled: December 14, 2012Publication date: June 19, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: ROBERT C. BARASZU, KURT M. JOHNSON, DAMON R. FRISCH
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Publication number: 20140172332Abstract: Systems and methods for improvements in battery state of charge accuracy, charge termination consistency, capacity estimation, and energy delivery consistency. More specifically, embodiments herein detail systems and methods using an algorithm to calculate the change in state of charge for a given voltage change (dSOC/dV) at a given temperature in a region around the present voltage measurement or estimation and to set a signal indicating when the measurement should not be used due to potential error.Type: ApplicationFiled: December 18, 2012Publication date: June 19, 2014Applicant: GM Global Technology Operations LLCInventors: Kurt M. Johnson, Brett B. Stawinski, Brian J. Koch, Damon R. Frisch, Patrick Frost