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Michael F Zawisa

from Rochester Hills, MI
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Related to:
Kevin P Zawisa, 44Homaira BauldWalter F ZawisaDeborah M Zawisa, 75Mark Zawisa, 49Dorothy ZawisaClara J Zawisa, 74
Connected to:
Andrzej Zawislak, 73Jennifer L Zawislak, 51Nicole E Zawislak, 34Joanna Zawistowska, 48Tami W Zawistowski, 67Thaddeus J Zawistowski, 78Alan J Zawisza, 71Heather L Zawisza, 39Pamela H Zawisza, 62Rita A Zawiti, 33

Michael Zawisa Phones & Addresses

  • Rochester Hills, MI
  • 770 Duck Holw, Victor, NY 14564 (585) 924-5396

Publications

Us Patents

High-Precision Rogowski Current Transformer

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US Patent:
7579824, Aug 25, 2009
Filed:
Sep 29, 2006
Appl. No.:
11/536769
Inventors:
David Rea - Pittsford NY, US
Kenneth L. Kaye - Fairport NY, US
Michael F. Zawisa - Victor NY, US
Assignee:
GM Global Technology Operations, Inc. - Detroit MI
International Classification:
G01R 15/18
H01F 5/00
US Classification:
324117R, 3241581, 336200, 336220, 336225
Abstract:
A high-precision Rogowski current transformer, the Rogowski coil is realized in a single printed circuit board while maintaining both the outside field rejection of a traditional Rogowski coil, and the increased output voltage similar to the multiple printed circuit board Rogowski coil arrangements.

Method For Collection And Communication Of Measured Data Within A Fuel Cell Stack

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US Patent:
8257875, Sep 4, 2012
Filed:
Mar 8, 2010
Appl. No.:
12/719367
Inventors:
David D. Rea - Pittsford NY, US
Michael F. Zawisa - Victor NY, US
Kenneth L. Kaye - Fairport NY, US
Assignee:
GM Global Technology Operations LLC - Detroit MI
International Classification:
H01M 8/04
US Classification:
429432, 429428, 429430, 429433, 429442
Abstract:
A system for communicating measurement data from each fuel cell or a group of fuel cells in a fuel cell stack, including a plurality of fuel cells and a plurality of stack plates, where one stack plate is between each fuel cell and on each end of the stack. The system includes a plurality of embedded smart plates where each embedded smart plate is mechanically and electrically coupled to at least one of the plurality of stack plates, and where each embedded smart plate includes optical transceivers on a top side and a bottom side of the smart plate. The system further includes at least one aggregator device having at least one optical transceiver to initiate a series of communications between the embedded smart plates to determine the location and data collected by each of the smart plates.

Fuel Cell Voltage Unit For Detecting A Failed Plate Connection

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US Patent:
8372553, Feb 12, 2013
Filed:
Apr 4, 2006
Appl. No.:
11/397199
Inventors:
Hartmut Stengelin - Mainz, DE
Bernhard Baaser - Milford MI, US
Robert S. Foley - Rochester NY, US
Michael F. Zawisa - Victor NY, US
Assignee:
GM Global Technology Operations LLC - Detroit MI
International Classification:
H01M 8/04
US Classification:
429432, 429428, 429430
Abstract:
A fuel cell system that includes a cell voltage monitoring sub-system that measures the cell voltage of each cell in a fuel cell stack and provides an indication of a low performing or failed cell. The fuel cell system uses the cell voltage monitoring sub-system to determine if one of the wires connected to a bipolar plate in the stack is broken or has otherwise failed. The cell voltage monitoring sub-system uses differential amplifiers to compare the positive side voltage and the negative side voltage of a cell to determine if the cell voltage is low or the cell is failing. By looking at the outputs of two differential amplifiers in the cell voltage monitoring sub-system, it can be determined whether adjacent cells provide an indication of both cells failing, which would indicate that a connection wire has failed.

Stack-Powered Fuel Cell Monitoring Device With Prioritized Arbitration

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US Patent:
8450965, May 28, 2013
Filed:
Jul 20, 2010
Appl. No.:
12/840047
Inventors:
David D. Rea - Pittsford NY, US
Michael F. Zawisa - Victor NY, US
Kenneth L. Kaye - Fairport NY, US
Robert S. Foley - Rochester NY, US
Assignee:
GM Global Technology Operations LLC - Detroit MI
International Classification:
H01M 10/44
H02J 7/00
US Classification:
320101, 320104, 320138, 320139
Abstract:
A system that monitors fuel cells in a fuel cell group. The system includes a plurality of voltage sensors coupled to the fuel cells in the fuel cell group, where each sensor monitors a different voltage of the fuel cells and where lower priority voltage sensors monitor higher voltages and higher priority sensors monitor lower voltages. The system also includes a plurality of oscillators where a separate oscillator is coupled to each of the sensors. Each oscillator operates at a different frequency where higher frequency oscillators are coupled to lower priority sensors and lower frequency oscillators are coupled to higher priority sensors. A light source that receives frequency signals from the oscillators and switches on and off in response to the frequency signals. A light pipe receives the switched light signals from the light source and provides light signals at a certain frequency at an end of the light pipe.

Method To Measure And Communicate Cell Voltage In A Fuel Cell Stack By Embedding Measurement Units On The Plate

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US Patent:
8206862, Jun 26, 2012
Filed:
Mar 8, 2010
Appl. No.:
12/719156
Inventors:
Michael F. Zawisa - Victor NY, US
David D. Rea - Pittsford NY, US
Kenneth L. Kaye - Fairport NY, US
Assignee:
GM Global Technology Operations LLC - Detroit MI
International Classification:
H01M 8/04
US Classification:
429432, 429428, 429430, 429433, 429442
Abstract:
A system for communicating measurement data from each fuel cell or a group of fuel cells in a fuel cell stack, including a plurality of fuel cells, a plurality of stack plates, and a plurality of embedded smart plates. The stack plates are between each fuel cell and on each end of the stack, and the plurality of embedded smart plates are mechanically and electrically coupled to at least one of the plurality of stack plates, and each smart plate including optical transceivers on the top side and the bottom side. The system further includes first and second aggregator devices, said first and second aggregator devices including at least one optical transceiver for communicating with the embedded smart plate adjacent to the first or second aggregator device, where one aggregator device initiates communication with the embedded smart plates and the other aggregator device completes communication.

Method And Apparatus For Measurement Of Fuel Cell High Frequency Resistance In The Presence Of Large Undesirable Signals

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US Patent:
20080091367, Apr 17, 2008
Filed:
Sep 29, 2006
Appl. No.:
11/536723
Inventors:
David Rea - Pittsford NY, US
Kenneth L. Kaye - Fairport NY, US
Robert S. Foley - Rochester NY, US
Michael F. Zawisa - Victor NY, US
Clark G. Hochgraf - Rochester NY, US
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS, INC. - Detroit MI
International Classification:
G01R 23/16
US Classification:
702 76
Abstract:
A method and apparatus for a high frequency resistance measurement instrument with a reasonable dynamic range, which militates against saturation in the presence of one or more large undesirable signals, the high frequency measurement instrument capable of employing multiple alternating currents of differing frequencies to maintain measurement capability despite signal chain saturation in the presence of a large undesirable signal.

Estimating Minimum Voltage Of Fuel Cells

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US Patent:
20100114513, May 6, 2010
Filed:
Oct 31, 2008
Appl. No.:
12/262592
Inventors:
Kiran Mallavarapu - Honeoye Falls NY, US
Balasubramanian Lakshmanan - Pittsford NY, US
Michael F. Zawisa - Victor NY, US
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS, INC. - Detroit MI
International Classification:
G01R 19/00
US Classification:
702 64
Abstract:
A method of estimating minimum voltage of fuel cells, and a product using same.

Interconnect Device For Battery Assembly

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US Patent:
20110229745, Sep 22, 2011
Filed:
Mar 19, 2010
Appl. No.:
12/727667
Inventors:
Stuart D. Barter - Lima NY, US
Michael F. Zawisa - Victor NY, US
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS, INC. - DETROIT MI
International Classification:
H01R 13/40
H01M 6/42
US Classification:
429 90, 4397331
Abstract:
An interconnect device for a battery assembly having a plurality of battery cell assemblies and a thermistor is disclosed. The interconnect device includes a non-conductive frame; a plurality of conductive traces integrally formed with the frame, a busbar in electrical communication with at least one of the conductive traces and disposed adjacent an aperture formed in the frame, wherein the aperture receives a tab of at least one of the battery cell assemblies, and a conductive pad disposed on a lower surface of the frame, the pad in electrical communication with at least one of the conductive traces and adapted to receive a signal from the thermistor.
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Michael F Zawisa from Rochester Hills, MI Get Report