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).
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Patent number: 8552687Abstract: 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: GrantFiled: June 5, 2008Date of Patent: October 8, 2013Assignee: GM Global Technology Operations LLCInventors: Jian Lin, Xidong Tang, Xiaodong Zhang, Brian J. Koch, Damon R. Frisch, Wei Liu, Michael J. Gielniak
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Patent number: 8321164Abstract: 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: GrantFiled: September 25, 2008Date of Patent: November 27, 2012Assignee: GM Global Technology Operations LLCInventors: Wei Liu, Michael J. Gielniak, Jian Lin, Brian J. Koch, Damon R. Frisch, Joseph M. Lograsso
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Patent number: 8239850Abstract: 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: GrantFiled: December 14, 2007Date of Patent: August 7, 2012Assignee: GM Global Technology Operations LLCInventors: Michael J. Gielniak, Damon R. Frisch
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Patent number: 8108160Abstract: 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: GrantFiled: September 25, 2008Date of Patent: January 31, 2012Assignee: GM Global Technology Operations LLCInventors: Wei Liu, Michael J. Gielniak, Jian Lin, Brian Koch, Damon R. Frisch, Joseph M. Lograsso
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Patent number: 8054046Abstract: 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: GrantFiled: January 23, 2008Date of Patent: November 8, 2011Assignee: GM Global Technology Operations LLCInventors: Jian Lin, Brian J. Koch, Damon R. Frisch, Michael J. Gielniak
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Patent number: 7768233Abstract: 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: GrantFiled: October 4, 2007Date of Patent: August 3, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Jian Lin, Xidong Tang, Brian J. Koch, Damon R. Frisch, Michael J. Gielniak
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Patent number: 7714736Abstract: 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: GrantFiled: October 30, 2007Date of Patent: May 11, 2010Assignee: GM Global Technology Operations, Inc.Inventor: Michael J. Gielniak
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Publication number: 20100076705Abstract: 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: ApplicationFiled: September 25, 2008Publication date: March 25, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: WEI LIU, MICHAEL J. GIELNIAK, JIAN LIN, BRIAN J. KOCH, DAMON R. FRISCH, JOSEPH M. LOGRASSO
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Publication number: 20100076704Abstract: 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: ApplicationFiled: September 25, 2008Publication date: March 25, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: WEI LIU, MICHAEL J. GIELNIAK, JIAN LIN, BRIAN J. KOCH, DAMON R. FRISCH, JOSEPH M. LOGRASSO
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Publication number: 20090302855Abstract: 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: ApplicationFiled: June 5, 2008Publication date: December 10, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Jian LIN, Xidong TANG, Xiaodong ZHANG, Brian J. KOCH, Damon R. FRISCH, Wei LIU, Michael J. GIELNIAK
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Publication number: 20090158261Abstract: 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: ApplicationFiled: December 14, 2007Publication date: June 18, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Michael J. Gielniak, Damon R. Frisch
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Publication number: 20090109046Abstract: 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: ApplicationFiled: October 30, 2007Publication date: April 30, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: Michael J. Gielniak
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Publication number: 20090091299Abstract: 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: ApplicationFiled: October 4, 2007Publication date: April 9, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: JIAN LIN, XIDONG TANG, BRIAN J. KOCH, DAMON R. FRISCH, MICHAEL J. GIELNIAK
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Publication number: 20080135315Abstract: 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: ApplicationFiled: January 23, 2008Publication date: June 12, 2008Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: JIAN LIN, BRIAN J. KOCH, DAMON R. FRISCH, MICHAEL J. GIELNIAK