Patents by Inventor Daniel J. Berry
Daniel J. Berry 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: 11752878Abstract: A vehicle is described that includes a multi-mode powertrain system having a first drive unit and a second drive unit. A controller is arranged to monitor the high-voltage DC power bus and is in communication with and operatively connected to first and second inverters. The controller is able to detect operation of one of the first inverter or the second inverter in an uncontrolled generating (UCG) mode, determine a driveline torque associated with the operating of the one of the first inverter or the second inverter in the UCG mode, and determine a compensating torque that is needed to counteract the driveline torque associated with the operating of the one of the first inverter or the second inverter in the UCG mode. The controller can further operate to detect a fault that may induce unintended lateral motion (ULM), and control torque outputs of the inverters based thereon.Type: GrantFiled: September 28, 2020Date of Patent: September 12, 2023Assignee: GM Global Technology Operations LLCInventors: Min-Joong Kim, Debanjan Deep, Jinming Liu, Anno Yoo, Daniel J. Berry
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Patent number: 11387757Abstract: A method for estimating a magnet temperature of a rotor magnet within a rotary electric machine includes, while a rotor of the electric machine is stationary, injecting a high-frequency voltage component onto a control voltage of the electric machine, via a controller, to generate an adjusted voltage command, and extracting a high-frequency component of a resulting current as an extracted high-frequency component. The method also includes calculating an inductance value of the electric machine using the extracted high-frequency component of the resulting current. The magnet temperature is estimated using the calculated inductance value and an angular position of the rotor. The method includes controlling an operation of the electric machine using the estimated magnet temperature. An electric powertrain uses the electric machine and controller noted above.Type: GrantFiled: September 4, 2019Date of Patent: July 12, 2022Assignees: GM Global Technology Operations LLC, Seoul National University R & DB FoundationInventors: Daniel J. Berry, Anno Yoo, Seung Ki Sul, Hyun-Sam Jung
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Publication number: 20220097531Abstract: A vehicle is described that includes a multi-mode powertrain system having a first drive unit and a second drive unit. A controller is arranged to monitor the high-voltage DC power bus and is in communication with and operatively connected to first and second inverters. The controller is able to detect operation of one of the first inverter or the second inverter in an uncontrolled generating (UCG) mode, determine a driveline torque associated with the operating of the one of the first inverter or the second inverter in the UCG mode, and determine a compensating torque that is needed to counteract the driveline torque associated with the operating of the one of the first inverter or the second inverter in the UCG mode. The controller can further operate to detect a fault that may induce unintended lateral motion (ULM), and control torque outputs of the inverters based thereon.Type: ApplicationFiled: September 28, 2020Publication date: March 31, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Min-Joong Kim, Debanjan Deep, Jinming Liu, Anno Yoo, Daniel J. Berry
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Patent number: 11264936Abstract: A method, system, and apparatus for controlling and regulating operation of a permanent magnet rotary electric machine including a stator and a rotor includes determining a first reactive power term associated with the electric machine based upon voltage, and determining a second reactive power term associated with the electric machine based upon flux. A first motor temperature associated with the electric machine is determined based upon the first and second reactive power terms, and power output from the permanent magnet electric machine is controlled based upon the first motor temperature.Type: GrantFiled: October 1, 2019Date of Patent: March 1, 2022Assignee: GM Global Technology Operations LLCInventors: Anno Yoo, Daniel J. Berry, Young J. Kim
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Patent number: 11209291Abstract: A resolver disposed to monitor a rotatable member is described, along with an associated method for evaluating an output signal therefrom. The method for monitoring the resolver includes supplying an excitation signal to the resolver, and monitoring, at an oversampling rate, first and second output signals from the resolver. An oversampling routine is executed to determine averages of the first and second output signals from the resolver. A demodulation angle error is determined based upon the first and second output signals from the resolver, and provided as feedback. A position of the resolver is also determined based upon the first and second output signals from the resolver.Type: GrantFiled: July 9, 2019Date of Patent: December 28, 2021Assignee: GM Global Technology Operations LLCInventors: Young Joo Lee, Anno Yoo, Milan A. Vadera, Daniel J. Berry
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Publication number: 20210099123Abstract: A method, system, and apparatus for controlling and regulating operation of a permanent magnet rotary electric machine including a stator and a rotor includes determining a first reactive power term associated with the electric machine based upon voltage, and determining a second reactive power term associated with the electric machine based upon flux. A first motor temperature associated with the electric machine is determined based upon the first and second reactive power terms, and power output from the permanent magnet electric machine is controlled based upon the first motor temperature.Type: ApplicationFiled: October 1, 2019Publication date: April 1, 2021Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Anno Yoo, Daniel J. Berry, Young J. Kim
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Publication number: 20210067075Abstract: A method for estimating a magnet temperature of a rotor magnet within a rotary electric machine includes, while a rotor of the electric machine is stationary, injecting a high-frequency voltage component onto a control voltage of the electric machine, via a controller, to generate an adjusted voltage command, and extracting a high-frequency component of a resulting current as an extracted high-frequency component. The method also includes calculating an inductance value of the electric machine using the extracted high-frequency component of the resulting current. The magnet temperature is estimated using the calculated inductance value and an angular position of the rotor. The method includes controlling an operation of the electric machine using the estimated magnet temperature. An electric powertrain uses the electric machine and controller noted above.Type: ApplicationFiled: September 4, 2019Publication date: March 4, 2021Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLC, Seoul National University R & DB FoundationInventors: Daniel J. Berry, Anno Yoo, Seung Ki Sul, Hyun-Sam Jung
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Publication number: 20210010832Abstract: A resolver disposed to monitor a rotatable member is described, along with an associated method for evaluating an output signal therefrom. The method for monitoring the resolver includes supplying an excitation signal to the resolver, and monitoring, at an oversampling rate, first and second output signals from the resolver. An oversampling routine is executed to determine averages of the first and second output signals from the resolver. A demodulation angle error is determined based upon the first and second output signals from the resolver, and provided as feedback. A position of the resolver is also determined based upon the first and second output signals from the resolver.Type: ApplicationFiled: July 9, 2019Publication date: January 14, 2021Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Young Joo Lee, Anno Yoo, Milan A. Vadera, Daniel J. Berry
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Patent number: 10340819Abstract: A torque system includes a DC power device, a polyphase electric machine, a contactor pair, a power inverter module (PIM), and a controller. The PIM connects to the power device via the contactor pair and directly connects to the electric machine. The controller executes a method to control a fault response under a fault condition resulting in opening of the contactor pair and a polyphase short condition. The controller calculates a back EMF of the electric machine and transmits switching control signals to semiconductor switches of the PIM to transition from the polyphase short condition to a polyphase open condition only when the calculated back EMF is less than a calibrated value and a voltage rise on a DC side of the PIM is less than a calibrated voltage rise. A vehicle includes the DC power device, road wheels, electric machine, PIM, and controller.Type: GrantFiled: April 29, 2016Date of Patent: July 2, 2019Assignee: GM Global Technology Operations LLC.Inventors: Daniel J. Berry, Wei D. Wang, Bon Ho Bae, Brian A. Welchko, Wesley G. Zanardelli, Melissa R. McNeely
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Patent number: 10162680Abstract: A method of exchanging data in a real-time operating system, between a primary core and a secondary core in a multi-core processor, includes executing a primary path via the primary core and executing a secondary path via the secondary core. The primary path is configured to be a relatively faster processing task and the secondary path is configured to be a relatively slower processing task. The method includes devising a freeze in process flag to have a respective flag status set and cleared by the primary path. The method includes devising a data frozen flag to have a respective flag status set and cleared by both the primary and the secondary paths. A component that is operatively connected to the multi-core processor may be controlled based at least partially on a difference between primary and secondary sets of calculations executed by the primary and secondary cores, respectively.Type: GrantFiled: December 13, 2016Date of Patent: December 25, 2018Assignee: GM Global Technology Operations LLCInventors: Young Joo Lee, Daniel J. Berry, Brian A. Welchko
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Publication number: 20180165127Abstract: A method of exchanging data in a real-time operating system, between a primary core and a secondary core in a multi-core processor, includes executing a primary path via the primary core and executing a secondary path via the secondary core. The primary path is configured to be a relatively faster processing task and the secondary path is configured to be a relatively slower processing task. The method includes devising a freeze in process flag to have a respective flag status set and cleared by the primary path. The method includes devising a data frozen flag to have a respective flag status set and cleared by both the primary and the secondary paths. A component that is operatively connected to the multi-core processor may be controlled based at least partially on a difference between primary and secondary sets of calculations executed by the primary and secondary cores, respectively.Type: ApplicationFiled: December 13, 2016Publication date: June 14, 2018Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Young Joo Lee, Daniel J. Berry, Brian A. Welchko
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Patent number: 9846002Abstract: A method for dynamically monitoring temperature of a fluid at a heat generating device includes monitoring, using a temperature sensor, temperature of the fluid held in a fluidic sump. A first fluidic flow rate and a second fluidic flow rate are determined. A third fluidic flow rate and a temperature drop of the fluid across the heat exchanger in the active coolant circuit are determined based upon the temperature of the fluid and the third fluidic flow rate through the active coolant circuit. A fluid temperature supplied to the electric machine through the active coolant circuit is determined based upon the third fluidic flow rate and the temperature drop of the fluid across the heat exchanger. An effective temperature of the fluid is determined based upon the temperature of the fluid in the sump and the temperature of the fluid supplied to the electric machine through the active coolant circuit.Type: GrantFiled: December 18, 2014Date of Patent: December 19, 2017Assignee: GM Global Technology Operations LLCInventor: Daniel J. Berry
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Publication number: 20170317615Abstract: A torque system includes a DC power device, a polyphase electric machine, a contactor pair, a power inverter module (PIM), and a controller. The PIM connects to the power device via the contactor pair and directly connects to the electric machine. The controller executes a method to control a fault response under a fault condition resulting in opening of the contactor pair and a polyphase short condition. The controller calculates a back EMF of the electric machine and transmits switching control signals to semiconductor switches of the PIM to transition from the polyphase short condition to a polyphase open condition only when the calculated back EMF is less than a calibrated value and a voltage rise on a DC side of the PIM is less than a calibrated voltage rise. A vehicle includes the DC power device, road wheels, electric machine, PIM, and controller.Type: ApplicationFiled: April 29, 2016Publication date: November 2, 2017Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Daniel J. Berry, Wei D. Wang, Bon Ho Bae, Brian A. Welchko, Wesley G. Zanardelli, Melissa R. McNeely
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Publication number: 20160178548Abstract: A method for dynamically monitoring temperature of a fluid at a heat generating device includes monitoring, using a temperature sensor, temperature of the fluid held in a fluidic sump. A first fluidic flow rate and a second fluidic flow rate are determined. A third fluidic flow rate and a temperature drop of the fluid across the heat exchanger in the active coolant circuit are determined based upon the temperature of the fluid and the third fluidic flow rate through the active coolant circuit. A fluid temperature supplied to the electric machine through the active coolant circuit is determined based upon the third fluidic flow rate and the temperature drop of the fluid across the heat exchanger. An effective temperature of the fluid is determined based upon the temperature of the fluid in the sump and the temperature of the fluid supplied to the electric machine through the active coolant circuit.Type: ApplicationFiled: December 18, 2014Publication date: June 23, 2016Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Daniel J. Berry
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Patent number: 9356551Abstract: An electric motor powers a fluidic pump fluidly connected to a hydraulic circuit. Operating the electric motor includes determining a heat transfer coefficient for the electric motor based upon a temperature of hydraulic fluid in the hydraulic circuit. A temperature of the electric motor is determined based upon the heat transfer coefficient. Operation of the electric motor is controlled based upon the temperature of the electric motor.Type: GrantFiled: January 31, 2013Date of Patent: May 31, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Daniel J. Berry, Paul F. Turnbull, Chia-Chou Yeh
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Publication number: 20160023573Abstract: A method for operating an electric machine of a ground vehicle includes periodically determining an aging parameter based upon a temperature of the electric machine and periodically determining a short-term aging effect based upon the periodically determined aging parameter. A long-term aging effect is determined based upon the short-term aging effect. A short-term temperature adjustment is determined based upon the short-term aging effect and a long-term temperature adjustment is determined based upon the long-term aging effect. A temperature-based derated motor torque is determined based upon the long-term temperature adjustment and the short-term temperature adjustment. Operation of the electric machine is controlled responsive to an operator command for torque based upon the temperature-based derated motor torque.Type: ApplicationFiled: July 25, 2014Publication date: January 28, 2016Inventors: Paul F. Turnbull, Steven L. Hayslett, Harry J. Bauer, Daniel J. Berry, George D. Dolan
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Patent number: 9242576Abstract: A method for operating an electric machine of a ground vehicle includes periodically determining an aging parameter based upon a temperature of the electric machine and periodically determining a short-term aging effect based upon the periodically determined aging parameter. A long-term aging effect is determined based upon the short-term aging effect. A short-term temperature adjustment is determined based upon the short-term aging effect and a long-term temperature adjustment is determined based upon the long-term aging effect. A temperature-based derated motor torque is determined based upon the long-term temperature adjustment and the short-term temperature adjustment. Operation of the electric machine is controlled responsive to an operator command for torque based upon the temperature-based derated motor torque.Type: GrantFiled: July 25, 2014Date of Patent: January 26, 2016Assignee: GM Global Technology Operations LLCInventors: Paul F. Turnbull, Steven L. Hayslett, Harry J. Bauer, Daniel J. Berry, George D. Dolan
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Publication number: 20140276847Abstract: A kit for use in performing joint arthroplasty is provided. The kit (400) includes a trial (12) and a reamer (2). The reamer (2) is for preparing a cavity (4) in the intramedullary canal (8) of a long bone (8) with the use of a driver (10) and to assist in performing a trial reduction. The reamer (2) includes a first portion (14) for placement at least partially in the cavity (4) of the long bone (8) and a second portion (16) operably connected to the first portion (14). The reamer (2) is removably connected to the driver (10) to rotate the reamer (2). The trial (12) is removably attachable to the reamer (2).Type: ApplicationFiled: May 30, 2014Publication date: September 18, 2014Applicant: DEPUY SYNTHES PRODUCTS, LLCInventors: DAVID WAYNE DANIELS, CHARLES WESLEY JAGGERS, KIMBERLY ANN DWYER, DAVID WILLIAM MORROW, BRAD ALAN PARKER, DANIEL J. BERRY
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Publication number: 20140210392Abstract: An electric motor powers a fluidic pump fluidly connected to a hydraulic circuit. Operating the electric motor includes determining a heat transfer coefficient for the electric motor based upon a temperature of hydraulic fluid in the hydraulic circuit. A temperature of the electric motor is determined based upon the heat transfer coefficient. Operation of the electric motor is controlled based upon the temperature of the electric motor.Type: ApplicationFiled: January 31, 2013Publication date: July 31, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: DANIEL J. BERRY, PAUL F. TURNBULL, CHIA-CHOU YEH
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Patent number: 8790346Abstract: A kit (400) for use in performing joint arthroplasty is provided. The kit (400) includes a trial (12) and a reamer (2). The reamer (2) is for preparing a cavity (4) in the intramedullary canal (8) of a long bone (8) with the use of a driver (10) and to assist in performing a trial reduction. The reamer (2) includes a first portion (14) for placement at least partially in the cavity (4) of the long bone (8) and a second portion (16) operably connected to the first portion (14). The reamer (2) is removably connected to the driver (10) to rotate the reamer (2). The trial (12) is removably attachable to the reamer (2).Type: GrantFiled: June 2, 2006Date of Patent: July 29, 2014Assignee: DePuy Synthes Products, LLCInventors: David Wayne Daniels, Charles Wesley Jaggers, Kimberly Ann Dwyer, David William Morrow, Brad Alan Parker, Daniel J. Berry