Patents by Inventor Lauren M. WHITE
Lauren M. WHITE 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: 12193355Abstract: An agricultural machine includes a seeding system having a seed transport mechanism configured to transport a seed along a transport route, a seed sensor configured to sense presence of the seed at a first location along the transport route, and a motor configured to drive movement of the seed transport mechanism to transport the seed from the first location to a second location in which the seed is released from the seed transport mechanism. A processing system is configured to track a position of the seed along the transport route based on an indication of the sensed presence of the seed at the first location and detected movement of the seed transport mechanism, and generate a motor operating parameter based on the tracked position of the seed and a target parameter for releasing the seed. The motor of the seeding system is operated based on the motor operating parameter.Type: GrantFiled: July 7, 2022Date of Patent: January 14, 2025Assignee: Deere & CompanyInventors: Cary S. Hubner, Matt D. Bartelson, Erick D. Esping, Scott C. Johnson, Lauren M. White, Douglas J. Olson
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Patent number: 11689142Abstract: A control module comprises software instructions for execution by an electronic data processor. An inductance estimator is configured to estimate direct inductance and quadrature inductance associated with the electric machine based on a first set of equations that assume constant rotor resistance and constant magnetic flux. A torque estimator is configured to estimate an observed torque associated with a rotor of the electric machine based a commanded direct-axis voltage and a commanded quadrature-axis voltage, where the observed torque is proportional to the observed power consumption of the electric machine. A pulse-width-modulation (PWM) module is configured to provide pulse-width modulated signals to the electric machine based on the commanded direct-axis voltage and a commanded quadrature-axis voltage. A back-electromotive force adjustment is derived from an estimated, observed torque and a commanded torque.Type: GrantFiled: December 12, 2021Date of Patent: June 27, 2023Assignee: Deere & CompanyInventors: Lauren M. White, Long Wu, Lav Thyagarajan, Danielle Li, Scott C. Johnson
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Patent number: 11602095Abstract: An agricultural machine includes a seeding system having a seed transport mechanism configured to transport a seed along a transport route, a seed sensor configured to sense presence of the seed at a first location along the transport route, and a motor configured to drive movement of the seed transport mechanism to transport the seed from the first location to a second location in which the seed is released from the seed transport mechanism. A processing system is configured to track a position of the seed along the transport route based on an indication of the sensed presence of the seed at the first location and detected movement of the seed transport mechanism, and generate a motor operating parameter based on the tracked position of the seed and a target parameter for releasing the seed. The motor of the seeding system is operated based on the motor operating parameter.Type: GrantFiled: October 31, 2019Date of Patent: March 14, 2023Assignee: DEERE & COMPANYInventors: Cary S. Hubner, Matt D. Bartelson, Erick D. Esping, Scott C. Johnson, Lauren M. White, Douglas J. Olson
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Publication number: 20230034814Abstract: An agricultural machine includes a seeding system having a seed transport mechanism configured to transport a seed along a transport route, a seed sensor configured to sense presence of the seed at a first location along the transport route, and a motor configured to drive movement of the seed transport mechanism to transport the seed from the first location to a second location in which the seed is released from the seed transport mechanism. A processing system is configured to track a position of the seed along the transport route based on an indication of the sensed presence of the seed at the first location and detected movement of the seed transport mechanism, and generate a motor operating parameter based on the tracked position of the seed and a target parameter for releasing the seed. The motor of the seeding system is operated based on the motor operating parameter.Type: ApplicationFiled: July 7, 2022Publication date: February 2, 2023Inventors: Cary S. HUBNER, Matt D. Bartelson, Erick D. Esping, Scott C. Johnson, Lauren M. White, Douglas J. Olson
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Patent number: 11535234Abstract: An energy management control module is configured for communication with the vehicle controller. The energy management control module is configured to generate generator command data for the generator in a power command mode. In one embodiment, the energy management control module supports a first mode and a second mode. A first mode comprises the power command mode and a stored power extraction mode that are mutually exclusive modes for any sampling interval. In the power command mode of the first mode, the energy management controller is configured to generate generator command data for the generator based on a commanded motor torque and an energy storage power command (e.g., SOC command data) if the primary rotational energy of the internal combustion engine meets or exceeds the total vehicle load for a sampling interval.Type: GrantFiled: June 26, 2020Date of Patent: December 27, 2022Assignee: Deere & CompanyInventors: Tyler J. Duffy, Dan Li, Long Wu, Eric Vilar, Lauren M. White
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Publication number: 20220376642Abstract: A control module comprises software instructions for execution by an electronic data processor. An inductance estimator is configured to estimate direct inductance and quadrature inductance associated with the electric machine based on a first set of equations that assume constant rotor resistance and constant magnetic flux. A torque estimator is configured to estimate an observed torque associated with a rotor of the electric machine based a commanded direct-axis voltage and a commanded quadrature-axis voltage, where the observed torque is proportional to the observed power consumption of the electric machine. A pulse-width-modulation (PWM) module is configured to provide pulse-width modulated signals to the electric machine based on the commanded direct-axis voltage and a commanded quadrature-axis voltage. A back-electromotive force adjustment is derived from an estimated, observed torque and a commanded torque.Type: ApplicationFiled: December 12, 2021Publication date: November 24, 2022Inventors: Lauren M. White, Long Wu, Lav Thyagarajan, Danielle Li, Scott C. Johnson
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Publication number: 20210253081Abstract: An energy management control module is configured for communication with the vehicle controller. The energy management control module is configured to generate generator command data for the generator in a power command mode. In one embodiment, the energy management control module supports a first mode and a second mode. A first mode comprises the power command mode and a stored power extraction mode that are mutually exclusive modes for any sampling interval. In the power command mode of the first mode, the energy management controller is configured to generate generator command data for the generator based on a commanded motor torque and an energy storage power command (e.g., SOC command data) if the primary rotational energy of the internal combustion engine meets or exceeds the total vehicle load for a sampling interval.Type: ApplicationFiled: June 26, 2020Publication date: August 19, 2021Inventors: Tyler J. Duffy, Dan Li, Long Wu, Eric Vilar, Lauren M. White
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Publication number: 20210127558Abstract: An agricultural machine includes a seeding system having a seed transport mechanism configured to transport a seed along a transport route, a seed sensor configured to sense presence of the seed at a first location along the transport route, and a motor configured to drive movement of the seed transport mechanism to transport the seed from the first location to a second location in which the seed is released from the seed transport mechanism. A processing system is configured to track a position of the seed along the transport route based on an indication of the sensed presence of the seed at the first location and detected movement of the seed transport mechanism, and generate a motor operating parameter based on the tracked position of the seed and a target parameter for releasing the seed. The motor of the seeding system is operated based on the motor operating parameter.Type: ApplicationFiled: October 31, 2019Publication date: May 6, 2021Inventors: Cary S. HUBNER, Matt D. BARTELSON, Erick D. ESPING, Scott C. JOHNSON, Lauren M. WHITE, Douglas J. OLSON