Patents by Inventor Michael J. Gielniak

Michael J. Gielniak 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).

  • Patent number: 8552687
    Abstract: Methods and systems are provided for characterizing a battery. A property of the battery is measured. A dynamic characteristic of the battery is determined from a second order linear dynamic model.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: October 8, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Jian Lin, Xidong Tang, Xiaodong Zhang, Brian J. Koch, Damon R. Frisch, Wei Liu, Michael J. Gielniak
  • Patent number: 8321164
    Abstract: Methods and systems for determining a state of charge of a battery exhibiting a transient response are provided. At least one property of the battery is measured. The state of charge of the battery is determined based on the at least one measured property and a transient response of the battery.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: November 27, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Wei Liu, Michael J. Gielniak, Jian Lin, Brian J. Koch, Damon R. Frisch, Joseph M. Lograsso
  • Patent number: 8239850
    Abstract: A computer implemented method of facilely releasing a BSE software module adapted for execution by an electronic control unit having an update model of the BSE software and a controller having an embedded desktop model of the BSE software, includes a plurality of autonomously performed steps resulting in the compiling of a plurality of c-files into a library file. A single keyword activated preferred embodiment is disclosed in a MatLab®/Simulink®/Real-Time Workshop® environment.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: August 7, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael J. Gielniak, Damon R. Frisch
  • Patent number: 8108160
    Abstract: Methods and systems for determining a state of charge of a battery are provided. A first component of the state of charge is calculated based on a first property of the battery. A second component of the state of charge is calculated based on a second property of the battery. The first component of the state of charge is weighted based on a rate of change of the first property relative to a change of the state of charge. The second component of the state of charge is weighted based on a rate of change of the second property relative to a change of the state of charge. The state of charge is determined based on the first and second weighted components.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: January 31, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Wei Liu, Michael J. Gielniak, Jian Lin, Brian Koch, Damon R. Frisch, Joseph M. Lograsso
  • Patent number: 8054046
    Abstract: A method for rapidly determining an initial diffusion voltage (Vdiff)initial as a starting point in calculating a diffusion voltage in an electro-chemical cell (e.g., a battery used in an automotive vehicle) includes obtaining a time difference toff between a time when the cell was last turned-OFF and a time when the cell was next turned-ON, selecting a starting diffusion voltage (Vdiff)start based on toff, determining a trial diffusion voltage Vdiff based on a diffusion circuit model and (Vdiff)start, calculating an error voltage Verror=(Vdiff)?|VOFF?VON| where VOFF and VON are cell voltages at turn-OFF and turn-ON respectively, repeating the foregoing determining and calculating steps using for each iteration (Vdiff)start=(Vdiff)previous+Verror until Verror is less than or equal to a first predetermined tolerance amount ?, storing in a memory a value of Vdiff corresponding to the condition Verror??, and setting (Vdiff)initial equal to the just stored value of Vdiff.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: November 8, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Jian Lin, Brian J. Koch, Damon R. Frisch, Michael J. Gielniak
  • Patent number: 7768233
    Abstract: A method for determining the state of charge (SOC) of a lithium ion battery is provided. The method leverages a circuit model of the lithium ion battery, and generates four battery parameters from which the SOC is derived.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: August 3, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Jian Lin, Xidong Tang, Brian J. Koch, Damon R. Frisch, Michael J. Gielniak
  • Patent number: 7714736
    Abstract: A system for and method of estimating the state-of-age of a secondary cell utilizing an adaptive group filter algorithm, includes battery current, voltage, and temperature sensors, a communication device, and a controller communicatively coupled to the sensors and device, configured to filter data by analyzing only sample data points from instantaneous charge or discharge events, selecting only a sample of n instantaneous points for further regression, including n/2 charge event points and n/2 discharge event points, and separately averaging the charge and discharge event points, and further configured to determine the state-of-age by determining a resistance slope based on the rate of current and voltage change between the averages of the points, and matching the slope to a calibrated scalar or relational database.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: May 11, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventor: Michael J. Gielniak
  • Publication number: 20100076705
    Abstract: Methods and systems for determining a state of charge of a battery exhibiting a transient response are provided. At least one property of the battery is measured. The state of charge of the battery is determined based on the at least one measured property and a transient response of the battery.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 25, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: WEI LIU, MICHAEL J. GIELNIAK, JIAN LIN, BRIAN J. KOCH, DAMON R. FRISCH, JOSEPH M. LOGRASSO
  • Publication number: 20100076704
    Abstract: Methods and systems for determining a state of charge of a battery are provided. A first component of the state of charge is calculated based on a first property of the battery. A second component of the state of charge is calculated based on a second property of the battery. The first component of the state of charge is weighted based on a rate of change of the first property relative to a change of the state of charge. The second component of the state of charge is weighted based on a rate of change of the second property relative to a change of the state of charge. The state of charge is determined based on the first and second weighted components.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 25, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: WEI LIU, MICHAEL J. GIELNIAK, JIAN LIN, BRIAN J. KOCH, DAMON R. FRISCH, JOSEPH M. LOGRASSO
  • Publication number: 20090302855
    Abstract: Methods and systems are provided for characterizing a battery. A property of the battery is measured. A dynamic characteristic of the battery is determined from a second order linear dynamic model.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 10, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Jian LIN, Xidong TANG, Xiaodong ZHANG, Brian J. KOCH, Damon R. FRISCH, Wei LIU, Michael J. GIELNIAK
  • Publication number: 20090158261
    Abstract: A computer implemented method of facilely releasing a BSE software module adapted for execution by an electronic control unit having an update model of the BSE software and a controller having an embedded desktop model of the BSE software, includes a plurality of autonomously performed steps resulting in the compiling of a plurality of c-files into a library file. A single keyword activated preferred embodiment is disclosed in a MatLab®/Simulink®/Real-Time Workshop® environment.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 18, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Michael J. Gielniak, Damon R. Frisch
  • Publication number: 20090109046
    Abstract: A system for and method of estimating the state-of-age of a secondary cell utilizing an adaptive group filter algorithm, includes battery current, voltage, and temperature sensors, a communication device, and a controller communicatively coupled to the sensors and device, configured to filter data by analyzing only sample data points from instantaneous charge or discharge events, selecting only a sample of n instantaneous points for further regression, including n/2 charge event points and n/2 discharge event points, and separately averaging the charge and discharge event points, and further configured to determine the state-of-age by determining a resistance slope based on the rate of current and voltage change between the averages of the points, and matching the slope to a calibrated scalar or relational database.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 30, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventor: Michael J. Gielniak
  • Publication number: 20090091299
    Abstract: A method for determining the state of charge (SOC) of a lithium ion battery is provided. The method leverages a circuit model of the lithium ion battery, and generates four battery parameters from which the SOC is derived.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 9, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: JIAN LIN, XIDONG TANG, BRIAN J. KOCH, DAMON R. FRISCH, MICHAEL J. GIELNIAK
  • Publication number: 20080135315
    Abstract: A method for rapidly determining an initial diffusion voltage (Vdiff)initial as a starting point in calculating a diffusion voltage in an electro-chemical cell (e.g., a battery used in an automotive vehicle) includes obtaining a time difference toff between a time when the cell was last turned-OFF and a time when the cell was next turned-ON, selecting a starting diffusion voltage (Vdiff)start based on toff, determining a trial diffusion voltage Vdiff based on a diffusion circuit model and (Vdiff)start, calculating an error voltage Verror=(Vdiff)?|VOFF?VON| where VOFF and VON are cell voltages at turn-OFF and turn-ON respectively, repeating the foregoing determining and calculating steps using for each iteration (Vdiff)start=(Vdiff)previous+Verror until Verror is less than or equal to a first predetermined tolerance amount ?, storing in a memory a value of Vdiff corresponding to the condition Verror??, and setting (Vdiff)initial equal to the just stored value of Vdiff.
    Type: Application
    Filed: January 23, 2008
    Publication date: June 12, 2008
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: JIAN LIN, BRIAN J. KOCH, DAMON R. FRISCH, MICHAEL J. GIELNIAK