Marilyn L Kindermann from Milford, MI, age 62

Knock Sensor Diagnostic System And Method
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US Patent:

7562558, Jul 21, 2009
Filed:

Sep 11, 2007
Appl. No.:

11/853178
Inventors:

Robert J. Horner - Dexter MI, US
Craig M. Sawdon - Williamston MI, US
Thomas A Szpakowski - South Lyon MI, US
Brian Carl Nelson - Bath MI, US
Karl T. Kiebel - Royal Oak MI, US
Marilyn L Kindermann - Milford MI, US
Anthony L. Marks - Novi MI, US
Assignee:

GM Global Technology Operations, Inc. - Detroit MI
International Classification:

G01L 23/22
US Classification:

73 3509
Abstract:

A knock sensor diagnostic system may include a knock sensor. A bias circuit applies a bias voltage to the knock sensor. An input circuit receives an input signal based on the bias voltage. A control module indicates a short circuit associated with the knock sensor based on the input signal. A knock sensor diagnostic system may also or alternatively include a signal generator that generates and applies a test signal with a predetermined frequency to the knock sensor. Another input circuit receives another input signal that is based on the test signal. A control module indicates an open circuit associated with the knock sensor based on the other input signal.

System And Method For More Accurate Temperature Sensing Using Thermistors
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US Patent:

8314623, Nov 20, 2012
Filed:

Sep 15, 2010
Appl. No.:

12/882488
Inventors:

Brian Carl Nelson - Bath MI, US
Christian G. Masson - Howell MI, US
Marilyn L. Kindermann - Milford MI, US
Brian K. Kowalczyk - Howell MI, US
International Classification:

G01R 27/08
US Classification:

324721, 32475003, 32475006, 324431, 324685, 374 1, 374185, 374163, 374 43, 702 99, 702100
Abstract:

A system includes a first module, a second module, and a third module. The first module determines a first temperature and a first power dissipation value of a thermistor based on a resistance of a first resistor connected in series with the thermistor. The second module, after disconnecting the first resistor and connecting a second resistor in series with the thermistor, determines a second temperature and a second power dissipation value of the thermistor based on a resistance of the second resistor. The third module determines a thermal dissipation factor based on the first and second temperatures and the first and second power dissipation values, and corrects temperature sensed by the thermistor based on the thermal dissipation factor.

System And Method For Detecting An Unexpected Medium Or A Change Of Medium Sensed By A Thermistor
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US Patent:

8485725, Jul 16, 2013
Filed:

Dec 21, 2010
Appl. No.:

12/974299
Inventors:

Brian Carl Nelson - Bath MI, US
Marilyn L. Kindermann - Milford MI, US
Brian K. Kowalczyk - Howell MI, US
Christian G. Masson - Howell MI, US
International Classification:

G01K 7/00
G01N 25/00
US Classification:

374185, 374 43
Abstract:

A system for detecting a change in medium sensed by a thermistor comprises a first module that receives a temperature signal from a thermistor and that calculates a first dissipation factor of the thermistor. A second module receives the first dissipation factor of the thermistor and detects at least one of an unexpected medium and a change in medium based on the first dissipation factor.

Knock System With Detection Zones
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US Patent:

20080229806, Sep 25, 2008
Filed:

Sep 11, 2007
Appl. No.:

11/853124
Inventors:

Anthony E. Cubr - Fenton MI, US
Craig M. Sawdon - Williamston MI, US
Wajdi B. Hamama - Whitmore Lake MI, US
Karl T. Kiebel - Royal Oak MI, US
Robert J. Horner - Dexter MI, US
Marilyn L. Kindermann - Milford MI, US
Jian Lin - Beverly Hills MI, US
Trenton W. Haines - Novi MI, US
Eric Ferch - Northville MI, US
Hamid M. Esfahan - Ann Arbor MI, US
James T. Kurnik - Linden MI, US
Weixin Yan - Novi MI, US
International Classification:

G01L 23/22
US Classification:

73 3503, 702 56
Abstract:

A knock detection module for an engine comprises a statistics storage module and a processing module. The statistics storage module stores M times N vibration profiles corresponding to M zones of operation of the engine and N cylinders of the engine, wherein M and N are integers greater than one. The processing module determines in which one of the M zones the engine is operating and determines whether knock has occurred for one of the N cylinders by comparing measured vibration data with a selected one of the vibration profiles corresponding to the one of the M zones and the one of the N cylinders.

Marilyn L Kindermann