Patents by Inventor Brian Wightman

Brian Wightman 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).

  • Publication number: 20250153586
    Abstract: An integrated synchronous motor charger includes a battery, and a synchronous motor having a set of phase windings, with each phase winding thereof having an open-ended winding configuration, the synchronous motor being electrically connected to the battery via a bidirectional inverter on a first end of at least one phase winding from the set of phase windings, and to a power source on a second end of the at least one phase winding. The synchronous motor is operably shiftable between a charging mode and a driving mode, the synchronous motor allowing electric power to flow bidirectionally between the power source and the battery in the charging mode, and allowing electric power to flow bidirectionally between the battery and the synchronous motor in the driving mode.
    Type: Application
    Filed: November 9, 2023
    Publication date: May 15, 2025
    Applicant: Jacobi Motors, LLC
    Inventors: Ahmed Morsy, Brian Wightman
  • Publication number: 20250026207
    Abstract: A direct current (DC) fast charger for charging batteries of electric vehicles (EVs) including a primary circuit, having nine switches, electrically linked to primary wires of a transformer and configured to receive three-phase alternating current (AC) power and increase the frequency of the AC power; and a secondary circuit, including six switches or diodes arranged to rectify AC voltage into DC power, that is electrically linked to a secondary wire of the transformer.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 23, 2025
    Inventors: Woongkul Lee, Brian Wightman
  • Patent number: 10848014
    Abstract: In one aspect, embodiments of the invention are directed to a multi-pole rotor of a variable-flux memory motor (VFMM) that includes: a rotor core; and a plurality of poles. Each of the poles includes: one or more soft rotor magnets; a first ferrous wedge; and a second ferrous wedge. The one or more soft rotor magnets are disposed between the first and second ferrous wedges in a circumferential direction of the rotor.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: November 24, 2020
    Assignee: Jacobi Motors LLC
    Inventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli, Akhila Bachapalli, Takashi Nakachi, Chaitanya Ravipalli, Brian Wightman, Shriya Bhatnagar
  • Publication number: 20200328632
    Abstract: In one aspect, embodiments of the invention are directed to a multi-pole rotor of a variable-flux memory motor (VFMM) that includes: a rotor core; and a plurality of poles. Each of the poles includes: one or more soft rotor magnets; a first ferrous wedge; and a second ferrous wedge. The one or more soft rotor magnets are disposed between the first and second ferrous wedges in a circumferential direction of the rotor.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 15, 2020
    Applicant: Jacobi Motors LLC
    Inventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli, Akhila Bachapalli, Takashi Nakachi, Chaitanya Ravipalli, Brian Wightman, Shriya Bhatnagar
  • Patent number: 10790712
    Abstract: In one aspect, embodiments of the invention are directed to a multi-pole rotor of a variable-flux memory motor (VFMM) that includes: a rotor core; and a plurality of poles. Each of the poles includes: one or more soft rotor magnets; a first ferrous wedge; and a second ferrous wedge. The one or more soft rotor magnets are disposed between the first and second ferrous wedges in a circumferential direction of the rotor.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: September 29, 2020
    Assignee: Jacobi Motors LLC
    Inventors: Nicolaus Radford, Mohammadreza Barzegaranbaboli, Akhila Bachapalli, Takashi Nakachi, Chaitanya Ravipalli, Brian Wightman, Shriya Bhatnagar
  • Patent number: 10125699
    Abstract: A method, using multiple position sensors, for determining a characteristic of the actuator or a system, wherein the characteristic is causing or is indicative of the cause of the change in position of the actuator. One characteristic may be the lost motion of the actuator or system. Lost motion is the lag between the motion of a controlled device and that of an electrical drive device due to yielding or looseness. The lost motion of an actuator may increase as components wear and may eventually degrade the function or cause failure of the actuator and/or system.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: November 13, 2018
    Assignee: Borgwarner Inc.
    Inventors: Brian Wightman, Ryan Howell
  • Publication number: 20180119626
    Abstract: A method, using multiple position sensors, for determining a characteristic of the actuator or a system, wherein the characteristic is causing or is indicative of the cause of the change in position of the actuator. One characteristic may be the lost motion of the actuator or system. Lost motion is the lag between the motion of a controlled device and that of an electrical drive device due to yielding or looseness. The lost motion of an actuator may increase as components wear and may eventually degrade the function or cause failure of the actuator and/or system.
    Type: Application
    Filed: November 3, 2016
    Publication date: May 3, 2018
    Inventors: Brian Wightman, Ryan Howell
  • Publication number: 20070073511
    Abstract: A method for determining the absolute angle of an angle position sensor over a predetermined rotation range and in which the sensor generates a repeating periodic analog signal across the rotation range. The initial position of the sensor is stored in memory when the sensor is in a predetermined initial angular position. Thereafter, the angular position of the sensor within the rotation range is determined as a function of both the sensor output signal and the stored angular position of the sensor. The current position of the sensor is iteratively stored in memory. Additionally, the sensor output is calibrated by dividing the sensor output into a plurality of arc segments across the rotation range. A polynomial curve fit is then applied to each arc segment to determine the calibration for the sensor and this calibration data is subsequently utilized to provide a signal representative of the absolute angle of the position sensor over the rotation range.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 29, 2007
    Inventors: Masashi Saito, Brian Wightman
  • Patent number: 7194377
    Abstract: A method for determining the absolute angle of an angle position sensor over a predetermined rotation range and in which the sensor generates a repeating periodic analog signal across the rotation range. The initial position of the sensor is stored in memory when the sensor is in a predetermined initial angular position. Thereafter, the angular position of the sensor within the rotation range is determined as a function of both the sensor output signal and the stored angular position of the sensor. The current position of the sensor is iteratively stored in memory. Additionally, the sensor output is calibrated by dividing the sensor output into a plurality of arc segments across the rotation range. A polynomial curve fit is then applied to each arc segment to determine the calibration for the sensor and this calibration data is subsequently utilized to provide a signal representative of the absolute angle of the position sensor over the rotation range.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: March 20, 2007
    Assignee: Hitachi Automotive Products (USA), Inc.
    Inventors: Masashi Saito, Brian Wightman