Patents by Inventor Andrew M. Zettel
Andrew M. Zettel 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: 11967851Abstract: A method for adapting a usage level of a battery pack includes measuring cell sense data for each respective battery cell using a cell sense circuit, the cell sense data including a cell voltage, current, and temperature. The method includes processing the cell sense data, for each respective battery cell, through multiple battery state functions of a controller to generate numeric cell degradation values (CDVs). The battery state functions are calibrated relationships of the cell sense data to predetermined battery fault conditions. Thereafter, the method includes automatically adapting the usage level of the battery pack during operation of the battery pack, via the controller, based on the numeric CDVs. An electric powertrain system includes the battery pack, cell sense circuit, a rotary electric machine, and a controller configured to execute the above method.Type: GrantFiled: February 25, 2021Date of Patent: April 23, 2024Assignee: GM Global Technology Operations LLCInventors: James C. Gibbs, Andrew M. Zettel, Calvin Goodman, Rajesh Nagappala
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Publication number: 20230311848Abstract: A method of operating a motor vehicle includes a vehicle controller receiving, from a first feedback sensor of an HV component, a first feedback signal indicative of an electrical characteristic of the HV component, and then detecting an HV system fault if the first feedback signal is less than a predefined electrical threshold. Upon detecting the system fault, the controller commands the HV component to operate at a commanded set-point; after sending the command, the controller receives, from a second feedback sensor of the HV component, a second feedback signal indicative of an operating characteristic of the HV component. An HV pathway failure is detected if the second feedback signal is not equal to or within a predefined operating range of the commanded set-point. Upon detecting the pathway failure in an HV electrical pathway of the HV component, the vehicle controller transmits a command signal to take a remedial action.Type: ApplicationFiled: April 5, 2022Publication date: October 5, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Emil Francu, Russell K. Steele, Andrew M. Zettel, Rohit Singhal
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Publication number: 20220271552Abstract: A method for adapting a usage level of a battery pack includes measuring cell sense data for each respective battery cell using a cell sense circuit, the cell sense data including a cell voltage, current, and temperature. The method includes processing the cell sense data, for each respective battery cell, through multiple battery state functions of a controller to generate numeric cell degradation values (CDVs). The battery state functions are calibrated relationships of the cell sense data to predetermined battery fault conditions. Thereafter, the method includes automatically adapting the usage level of the battery pack during operation of the battery pack, via the controller, based on the numeric CDVs. An electric powertrain system includes the battery pack, cell sense circuit, a rotary electric machine, and a controller configured to execute the above method.Type: ApplicationFiled: February 25, 2021Publication date: August 25, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James C. Gibbs, Andrew M. Zettel, Calvin Goodman, Rajesh Nagappala
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Patent number: 11305752Abstract: A system for emissions mitigation for a hybrid automobile vehicle includes an automobile vehicle provided with motive power from: a battery pack; an engine; and a controller in communication with the battery pack and the engine. A threshold battery pack state-of-charge (SOC) is predetermined. A minimum battery pack SOC is less than the threshold battery pack SOC. An engine-on charge depletion (EOCD) command is issued by the controller to start the engine in an engine-catalyst light-off operation condition when the vehicle is operating using power from the battery pack and when the threshold battery pack state-of-charge (SOC) is reached to mitigate against exceeding vehicle emissions standards.Type: GrantFiled: November 1, 2019Date of Patent: April 19, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Eric D. Piper, Andrew M. Zettel, Anthony H. Heap
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Publication number: 20210226276Abstract: A method of controlling temperature of a coolant supplied to a battery pack includes detecting a request for charging the battery pack, and commanding, via the electronic controller, a rate of charge of the battery pack. The method also includes determining the dew point inside the battery pack during the charging. The method additionally includes commanding a supply of coolant to the battery pack while the battery pack is charging. The method also includes regulating a temperature of the coolant to maintain the battery pack above the determined dew point during the charging. The method may further include maximizing the rate of charge at the regulated temperature of the coolant. A battery system employing an electronic controller configured to perform such a method, and a motor vehicle using such a battery system are also within the scope of the present disclosure.Type: ApplicationFiled: January 20, 2020Publication date: July 22, 2021Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Kris Sevel, Orlando Ward-Santos, Kyle Holihan, Andrew M. Zettel
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Patent number: 10507841Abstract: A method of controlling a ground vehicle includes providing the vehicle with a first sensor configured to detect a vehicle position, a second sensor configured to detect a driven path of the vehicle, and a controller. The method also includes obtaining, via the first sensor, a plurality of vehicle position coordinates during a time interval of a drive cycle, and calculating, via the controller, a first path curvature parameter based on the plurality of vehicle position coordinates. The method additionally includes obtaining, via the second sensor, a second path curvature parameter based on the driven path during the time interval. The method further includes comparing, via the controller, the first path curvature parameter to the second path curvature parameter, and in response to a difference between the second path curvature and the first path curvature exceeding a threshold, automatically operating the controller according to a diagnostic mode.Type: GrantFiled: January 23, 2019Date of Patent: December 17, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Gurhari Singh, Andrew M. Zettel, Crystal Nassouri, Henry R. Wright
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Patent number: 10464547Abstract: A vehicle includes drive wheels, an energy source having an available energy, a torque-generating device powered by the energy source to provide an input torque, a transmission configured to receive the input torque and deliver an output torque to the set of drive wheels, and a controller. The controller, as part of a programmed method, predicts consumption of the available energy along a predetermined travel route using onboard data, offboard data, and a first logic block, and also corrects the predicted energy consumption using the onboard data, offboard data, and an error correction loop between a second logic block and the first logic block. The controller also executes a control action with respect to the vehicle using the corrected energy consumption, including changing a logic state of the vehicle.Type: GrantFiled: July 13, 2017Date of Patent: November 5, 2019Assignee: GM Global Technology Operations LLCInventors: David S. Park, Kevin J. Smith, Terence L. Meehan, Todd P. Lindemann, Richard B. Weinberg, James B. Nicholson, Chia-Hsiang Liu, Andrew M. Zettel, Ramon A. Alonso
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Publication number: 20190300105Abstract: A pedal electric cycle (e-bike) includes a road wheel connected to a frame, a crankset imparting a rider torque to the road wheel when a rider manually rotates the crankset, a battery pack having a state of charge (SOC), an electric traction motor, and a controller. In response to motor control signals, the motor imparts an electric-assist (e-assist) torque to the road wheel as a torque multiplier. The controller uses an energy cost function, and in response to input signals including a travel route and a desired e-assist objective, commands the e-assist torque via the motor control signals to augment the rider torque while satisfying the e-assist objective. The level is determined via the energy cost function, with the input signals including the SOC, inclination data describing a grade of each road segment of the route, and an electric model providing the torque multiplier.Type: ApplicationFiled: March 28, 2018Publication date: October 3, 2019Applicant: GM Global Technology Operations LLCInventors: Shaun S. Marshall, Mark A Manickaraj, Andrew M. Zettel, Prakash Murugesan
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Publication number: 20190016329Abstract: A vehicle includes drive wheels, an energy source having an available energy, a torque-generating device powered by the energy source to provide an input torque, a transmission configured to receive the input torque and deliver an output torque to the set of drive wheels, and a controller. The controller, as part of a programmed method, predicts consumption of the available energy along a predetermined travel route using onboard data, offboard data, and a first logic block, and also corrects the predicted energy consumption using the onboard data, offboard data, and an error correction loop between a second logic block and the first logic block. The controller also executes a control action with respect to the vehicle using the corrected energy consumption, including changing a logic state of the vehicle.Type: ApplicationFiled: July 13, 2017Publication date: January 17, 2019Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: David S. Park, Kevin J. Smith, Terence L. Meehan, Todd P. Lindemann, Richard B. Weinberg, James B. Nicholson, Chia-Hsiang Liu, Andrew M. Zettel, Ramon A. Alonso
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Patent number: 10124679Abstract: A vehicle including an energy storage device and a powertrain system configured to effect regenerative braking is described. A method for controlling the vehicle includes determining an expected increase in a state of charge of the energy storage device achieved through opportunity charging by employing regenerative braking during an anticipated next trip of the vehicle. A preferred setpoint for the state of charge of the energy storage device is determined based upon the expected increase in the state of charge achieved through opportunity charging, and charging of the energy storage device is controlled during a remote charging event based upon the preferred setpoint for the state of charge of the energy storage device.Type: GrantFiled: October 30, 2015Date of Patent: November 13, 2018Assignee: GM Global Technology Operations LLCInventors: Andrew M. Zettel, Larry T. Nitz, Andrew J. Farah, Matthew S. Stout, Daniel P. Grenn
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Patent number: 9857252Abstract: A system for, and method of, providing e-assist on a route. A determination may be made of whether terrain data for the route is available. A rider effort level may be determined. The terrain data may be read when available. Whether a change in slope has occurred, or is anticipated to occur, corresponding to a need for an additional input to the rider effort level may be determined. The e-assist level may be adjusted to provide a level that offsets the need for the additional input, or the rider may be informed to provide an increased effort level.Type: GrantFiled: November 24, 2015Date of Patent: January 2, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Prakash Murugesan, Mark A. Manickaraj, Michael J. Chappell, Andrew M. Zettel
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Publication number: 20170144724Abstract: A system for, and method of, providing e-assist on a route. A determination may be made of whether terrain data for the route is available. A rider effort level may be determined. The terrain data may be read when available. Whether a change in slope has occurred, or is anticipated to occur, corresponding to a need for an additional input to the rider effort level may be determined. The e-assist level may be adjusted to provide a level that offsets the need for the additional input, or the rider may be informed to provide an increased effort level.Type: ApplicationFiled: November 24, 2015Publication date: May 25, 2017Inventors: PRAKASH MURUGESAN, MARK A. MANICKARAJ, MICHAEL J. CHAPPELL, ANDREW M. ZETTEL
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Publication number: 20170120762Abstract: A vehicle including an energy storage device and a powertrain system configured to effect regenerative braking is described. A method for controlling the vehicle includes determining an expected increase in a state of charge of the energy storage device achieved through opportunity charging by employing regenerative braking during an anticipated next trip of the vehicle. A preferred setpoint for the state of charge of the energy storage device is determined based upon the expected increase in the state of charge achieved through opportunity charging, and charging of the energy storage device is controlled during a remote charging event based upon the preferred setpoint for the state of charge of the energy storage device.Type: ApplicationFiled: October 30, 2015Publication date: May 4, 2017Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Andrew M. Zettel, Larry T. Nitz, Andrew J. Farah, Matthew S. Stout, Daniel P. Grenn
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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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Patent number: 9566985Abstract: A method for monitoring an electrically-powered torque machine configured to generate torque in a hybrid powertrain system includes monitoring signal outputs of a resolver configured to monitor rotational position of the torque machine. Upon detecting a fault warning state associated with the signal outputs of the resolver, a motor torque capacity of the torque machine is derated. Upon a clearing of the fault warning state, a torque ramp-up state to increase the motor torque capacity of the torque machine is executed. Notice of an incidence of a fault associated with the signal outputs of the resolver is provided only when the motor torque capacity fails to achieve a threshold motor torque capacity within a threshold recovery time period while executing the torque ramp-up state.Type: GrantFiled: February 8, 2011Date of Patent: February 14, 2017Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Wei D. Wang, Bon Ho Bae, Leah Dunbar, Kevin P. Houle, William R. Cawthorne, Andrew M. Zettel, Hanne Buur, Steven E. Schulz
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Patent number: 9527495Abstract: A vehicle system includes an electric motor, an internal combustion engine, and a heating system configured to transfer heat from the internal combustion engine to a passenger compartment of the vehicle. The system includes a controller configured to operate the electric motor and the internal combustion engine according to one of a plurality of drive cycle profiles. The controller selects the drive cycle profile based on an ambient temperature. The drive cycle profiles include a first drive cycle profile that commands power from the electric motor until the battery system reaches a predetermined state of charge and subsequently commands power from the internal combustion engine and a second drive cycle profile that commands power from the internal combustion engine and subsequently commands power from the electric motor.Type: GrantFiled: December 11, 2014Date of Patent: December 27, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Andrew M. Zettel, Norman J. Weigert, Mark A. Manickaraj, Anthony H. Heap, Richard A. Marsh, Aniket Kothari, Michael R. Colville
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Patent number: 9428073Abstract: A method of monitoring a performance level of a battery of a vehicle having an electronic control unit (ECU) includes enabling a charging diagnostic module (CDM) and determining, with the CDM, a charging status of the battery. The method also includes enabling a discharging diagnostic module (DDM) and determining, with the DDM, a discharging status of the battery. The charging status and the discharging status are recorded in a memory location of the ECU.Type: GrantFiled: February 21, 2014Date of Patent: August 30, 2016Assignee: GM Global Technology Operations LLCInventors: Andrew C. Baughman, Daniel P. Grenn, Andrew M. Zettel
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Publication number: 20160167640Abstract: A vehicle system includes an electric motor, an internal combustion engine, and a heating system configured to transfer heat from the internal combustion engine to a passenger compartment of the vehicle. The system includes a controller configured to operate the electric motor and the internal combustion engine according to one of a plurality of drive cycle profiles. The controller selects the drive cycle profile based on an ambient temperature. The drive cycle profiles include a first drive cycle profile that commands power from the electric motor until the battery system reaches a predetermined state of charge and subsequently commands power from the internal combustion engine and a second drive cycle profile that commands power from the internal combustion engine and subsequently commands power from the electric motor.Type: ApplicationFiled: December 11, 2014Publication date: June 16, 2016Inventors: ANDREW M. ZETTEL, NORMAN J. WEIGERT, MARK A. MANICKARAJ, ANTHONY H. HEAP, RICHARD A. MARSH, ANIKET KOTHARI, MICHAEL R. COLVILLE
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Patent number: 9278684Abstract: A method for controlling a hybrid vehicle includes the following: (a) receiving route data regarding a desired trip; (b) determining a load distribution along the desired trip based on the route data; (c) determining a load threshold based on the load distribution along the desired trip; (d) determining a charge depleting operating threshold based on a state of charge of the energy storage device; (e) commanding the powertrain to shift from a charge-depleting mode to a charge-sustaining mode when a load of the hybrid vehicle is equal to or greater than the load threshold; and (f) commanding the powertrain to shift from the charge-sustaining mode to the charge-depleting mode when the hybrid vehicle has traveled a distance that is greater than or equal to the charge-depleting operating threshold since the powertrain shifted from the charge-depleting mode to the charge-sustaining mode.Type: GrantFiled: February 24, 2014Date of Patent: March 8, 2016Assignee: GM Global Technology Operations LLCInventors: Mark A. Manickaraj, Andrew M. Zettel, Rick W. Szymczyk, Norman J. Weigert, Richard A. Marsh, Kevin A. Dietrich, Michael R. Colville
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Patent number: 9260087Abstract: A brake system for a vehicle having a hydraulic brake system and a regenerative brake system and a method of controlling the same is provided. The brake system may include a brake pedal having a range of motion and configured to control the application of the hydraulic brake system based upon a position of the brake pedal within the range of motion. The brake system may further include a brake controller configured to determine an inflection position of the brake pedal, the inflection position being a position of the brake pedal within the range of motion when the hydraulic brake system begins to apply a brake pressure over a predetermined threshold, wherein the brake controller applies the regenerative brake system based upon inflection position.Type: GrantFiled: September 29, 2010Date of Patent: February 16, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: William L. Aldrich, III, Andrew M. Zettel, Ammar A. Atmeh