Patents by Inventor Nicholas Kokotovich
Nicholas Kokotovich 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: 9657791Abstract: An actuator is provided for preventing rotation of a rotary component and includes a first pawl pivotable about a first pivot axis and engageable with the rotary component for preventing rotation of the rotary component in a first rotary direction. A second pawl is pivotable about a second pivot axis and engageable with the rotary component for preventing rotation of the rotary component in a second rotary direction opposite the first rotary direction. The pawls are each biased toward an engaged position with the rotary component by a pawl spring. A first and a second solenoid each include an electrically activated solenoid and an armature movable from a first position for holding the pawls out of engagement with the rotary component to a second position for allowing the pawls to be engaged with the rotary component.Type: GrantFiled: March 12, 2015Date of Patent: May 23, 2017Assignee: GM Global Technology Operations LLCInventors: Anthony J. Corsetti, Nicholas Kokotovich, David Patrick Balgaard
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Patent number: 9611931Abstract: Method for detecting a fault condition in a vehicular hydraulic circuit during a drive cycle using an electric pump includes monitoring an actual pump torque and monitoring a desired pump torque. A current confidence factor is determined based on the actual pump torque and the desired pump torque. An average confidence factor is iteratively calculated based on the current confidence factor and previously determined confidence factors. The average confidence factor is compared to a fault condition threshold. An absence of the fault condition in the hydraulic circuit is detected when the average confidence factor is at least the fault condition threshold, and a presence of the fault condition in the hydraulic circuit is detected when the average confidence factor is less than the fault condition threshold.Type: GrantFiled: May 24, 2012Date of Patent: April 4, 2017Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Ali K. Naqvi, Andrew M. Zettel, Vincent Rawls, Nicholas Kokotovich
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Publication number: 20160265609Abstract: An actuator is provided for preventing rotation of a rotary component and includes a first pawl pivotable about a first pivot axis and engageable with the rotary component for preventing rotation of the rotary component in a first rotary direction. A second pawl is pivotable about a second pivot axis and engageable with the rotary component for preventing rotation of the rotary component in a second rotary direction opposite the first rotary direction. The pawls are each biased toward an engaged position with the rotary component by a pawl spring. A first and a second solenoid each include an electrically activated solenoid and an armature movable from a first position for holding the pawls out of engagement with the rotary component to a second position for allowing the pawls to be engaged with the rotary component.Type: ApplicationFiled: March 12, 2015Publication date: September 15, 2016Inventors: Anthony J. CORSETTI, Nicholas KOKOTOVICH, David Patrick BALGAARD
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Publication number: 20130313048Abstract: Method for detecting a fault condition in a vehicular hydraulic circuit during a drive cycle using an electric pump includes monitoring an actual pump torque and monitoring a desired pump torque. A current confidence factor is determined based on the actual pump torque and the desired pump torque. An average confidence factor is iteratively calculated based on the current confidence factor and previously determined confidence factors. The average confidence factor is compared to a fault condition threshold. An absence of the fault condition in the hydraulic circuit is detected when the average confidence factor is at least the fault condition threshold, and a presence of the fault condition in the hydraulic circuit is detected when the average confidence factor is less than the fault condition threshold.Type: ApplicationFiled: May 24, 2012Publication date: November 28, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Ali K. NAQVI, Andrew M. ZETTEL, Vincent RAWLS, Nicholas KOKOTOVICH
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Patent number: 8446113Abstract: Methods and systems for operating an inverter having a plurality of high switches and a plurality of low switches coupled to an electric motor are provided. An event indicative of deceleration of the electric motor is detected. The inverter is alternated between a first mode of operation and a second mode of operation during the deceleration of the electric motor. In the first mode of operation, each of the plurality of high switches is activated and each of the plurality of low switches is deactivated or each of the plurality of low switches is activated and each of the plurality of high switches is deactivated. In the second mode of operation, each of the plurality of high switches is deactivated and each of the plurality of low switches is deactivated.Type: GrantFiled: June 17, 2010Date of Patent: May 21, 2013Assignee: GM Global Technology Operations LLCInventors: Brian A Welchko, Konstantin S. Majarov, Silva Hiti, Steven E. Schulz, Aniket Kothari, Nicholas Kokotovich
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Patent number: 8265821Abstract: A method for determining a voltage level across an electrical circuit of a powertrain includes measuring a plurality of voltage levels and utilizing a comparison test between at least two voltage levels of the plurality of voltage levels to determine the circuit voltage level.Type: GrantFiled: October 16, 2008Date of Patent: September 11, 2012Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler Group LLC, Bayerische Motoren Werke AktiengesellschaftInventors: Wei D. Wang, William R. Cawthorne, Aniket Kothari, Nicholas Kokotovich, Wei Ren, Bo Zhang
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Patent number: 8248023Abstract: A method of externally charging a powertrain includes monitoring a voltage level of a first battery, determining when the monitored voltage level is below a first voltage threshold, and when the monitored voltage level is below the first voltage threshold, charging the first battery by supplying power from an external power source and increasing voltage of the power supplied by the external power source within the powertrain.Type: GrantFiled: October 20, 2008Date of Patent: August 21, 2012Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler Group LLC, Bayerische Motoren Werke AktiengesellschaftInventors: R. Travis Schwenke, Nicholas Kokotovich, Aniket Kothari, Mario V. Maiorana, Jr., William R. Cawthorne
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Patent number: 8214120Abstract: A powertrain includes an electromechanical transmission operative to transmit torque between an input member and an electric machine and an output member to transmit tractive torque. The electric machine is electrically connected to an inverter device which is electrically connected to an energy storage device. A method for operating the powertrain includes detecting a shutdown event, commanding the transmission to neutral, commanding the electric machine to cease operating in a torque generating mode, and electrically disconnecting the energy storage device from the inverter device.Type: GrantFiled: October 28, 2008Date of Patent: July 3, 2012Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler Group LLC, Bayerische Motoren Werke AktiengesellschaftInventors: Aniket Kothari, Nicholas Kokotovich, Stephen T. West, James E. Tarchinski, Sean E Gleason, William R. Cawthorne
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Publication number: 20120123807Abstract: Systems, apparatus, methods and articles of manufacture provide for an integrated operations management system for revenue management and/or billing and accounts receivable (e.g., in an insurance or other financial context). In some embodiments, an operations management system provides for determining a complexity rating for an account (e.g., a loss sensitive insurance account). In some embodiments, the complexity rating may be based on respective answers (e.g., provided by an end user) to one or more survey questions. In some embodiments, the complexity rating may be used for determining a billing priority rating for an account.Type: ApplicationFiled: October 25, 2011Publication date: May 17, 2012Applicant: The Travelers Companies, Inc.Inventors: Vincent J. Seaver, Carolyn D. Jaworski, Anthony Snider, Nicholas Kokotovich, Ann M. McDougall, Virnitia J. Holston
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Patent number: 8098041Abstract: A method of charging a powertrain includes detecting an external power source in electrical communication with the powertrain, establishing a virtual network between charging control module, and transferring charge from the external power source to the powertrain.Type: GrantFiled: October 16, 2008Date of Patent: January 17, 2012Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke AktiengesellshaftInventors: Nicholas Kokotovich, Aniket Kothari, Michael Bolton
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Publication number: 20110309777Abstract: Methods and systems for operating an inverter having a plurality of high switches and a plurality of low switches coupled to an electric motor are provided. An event indicative of deceleration of the electric motor is detected. The inverter is alternated between a first mode of operation and a second mode of operation during the deceleration of the electric motor. In the first mode of operation, each of the plurality of high switches is activated and each of the plurality of low switches is deactivated or each of the plurality of low switches is activated and each of the plurality of high switches is deactivated. In the second mode of operation, each of the plurality of high switches is deactivated and each of the plurality of low switches is deactivated.Type: ApplicationFiled: June 17, 2010Publication date: December 22, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Brian A. Welchko, Konstantin S. Majarov, Silva Hiti, Steven E. Schulz, Aniket Kothari, Nicholas Kokotovich
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Publication number: 20090115373Abstract: A method of charging a powertrain includes detecting an external power source in electrical communication with the powertrain, establishing a virtual network between charging control module, and transferring charge from the external power source to the powertrain.Type: ApplicationFiled: October 16, 2008Publication date: May 7, 2009Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke AktiengesellschaftInventors: Nicholas Kokotovich, Aniket Kothari, Michael Bolton
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Publication number: 20090118916Abstract: A powertrain includes an electromechanical transmission operative to transmit torque between an input member and an electric machine and an output member to transmit tractive torque. The electric machine is electrically connected to an inverter device which is electrically connected to an energy storage device. A method for operating the powertrain includes detecting a shutdown event, commanding the transmission to neutral, commanding the electric machine to cease operating in a torque generating mode, and electrically disconnecting the energy storage device from the inverter device.Type: ApplicationFiled: October 28, 2008Publication date: May 7, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Aniket Kothari, Nicholas Kokotovich, Stephen T. West, James E. Tarchinski, Sean Em Gleason, William R. Cawthorne
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Publication number: 20090115377Abstract: A method of externally charging a powertrain includes monitoring a voltage level of a first battery, determining when the monitored voltage level is below a first voltage threshold, and when the monitored voltage level is below the first voltage threshold, charging the first battery by supplying power from an external power source and increasing voltage of the power supplied by the external power source within the powertrain.Type: ApplicationFiled: October 20, 2008Publication date: May 7, 2009Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke AktiengesellschaftInventors: R. Travis Schwenke, Nicholas Kokotovich, Aniket Kothari, Mario V. Maiorana, JR., William R. Cawthorne