Patents by Inventor Brett B. Stawinski

Brett B. Stawinski 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).

  • Battery state-of-charge estimation for hybrid and electric vehicles using extended kalman filter techniques
    Patent number: 9575128
    Abstract: 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: Grant
    Filed: March 12, 2013
    Date of Patent: February 21, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Patrick Frost, Brian J. Koch, Damon R. Frisch, Brett B. Stawinski, Patricia M. Laskowsky, Kurt M. Johnson, Robert C. Baraszu
  • Systems and methods for determining battery system power capability
    Patent number: 9419314
    Abstract: 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: Grant
    Filed: May 12, 2014
    Date of Patent: August 16, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Brian J. Koch, Brett B. Stawinski, Patrick Frost, Damon R. Frisch, John E. Novak
  • Methods and systems for determining whether a voltage measurement is usable for a state of charge estimation
    Patent number: 9267995
    Abstract: 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: Grant
    Filed: December 18, 2012
    Date of Patent: February 23, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Kurt M. Johnson, Brett B. Stawinski, Brian J. Koch, Damon R. Frisch, Patrick Frost
  • SYSTEMS AND METHODS FOR DETERMINING BATTERY SYSTEM POWER CAPABILITY
    Publication number: 20150321572
    Abstract: 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: Application
    Filed: May 12, 2014
    Publication date: November 12, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: BRIAN J. KOCH, BRETT B. STAWINSKI, PATRICK FROST, DAMON R. FRISCH, JOHN E. NOVAK
  • Battery State-Of-Charge Estimation For Hybrid And Electric Vehicles Using Extended Kalman Filter Techniques
    Publication number: 20140278167
    Abstract: 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: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: Patrick Frost, Brian J. Koch, Damon R. Frisch, Brett B. Stawinski, Patricia M. Laskowsky, Kurt M. Johnson, Robert C. Baraszu
  • METHODS AND SYSTEMS FOR DETERMINING WHETHER A VOLTAGE MEASUREMENT IS USABLE FOR A STATE OF CHARGE ESTIMATION
    Publication number: 20140172332
    Abstract: 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: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: Kurt M. Johnson, Brett B. Stawinski, Brian J. Koch, Damon R. Frisch, Patrick Frost