Patents by Inventor Matthew From

Matthew From 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).

  • Selective motor derating using estimated internal temperature of inverter bulk capacitor
    Patent number: 12726149
    Abstract: An electric drive system includes a direct current (DC) power supply, a rotary electric machine connectable to a load, a power inverter module (PIM), and a controller. The PIM includes a bulk capacitor connected to the DC power supply, along with a plurality of power switches. Each power switch has an output side connected to the electric machine and an input side connected to the bulk capacitor. The controller executes a method to estimate an internal temperature of the bulk capacitor as an estimated internal temperature. This occurs in response to an enabling condition. The controller then selectively derates the electric machine in response to the estimated internal temperature.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: September 1, 2026
    Assignee: GM Global Technology Operations LLC
    Inventors: Dylan M. Day, Matthew From, Young J. Kim, Daniel J. Berry
  • SELECTIVE MOTOR DERATING USING ESTIMATED INTERNAL TEMPERATURE OF INVERTER BULK CAPACITOR
    Publication number: 20240243682
    Abstract: An electric drive system includes a direct current (DC) power supply, a rotary electric machine connectable to a load, a power inverter module (PIM), and a controller. The PIM includes a bulk capacitor connected to the DC power supply, along with a plurality of power switches. Each power switch has an output side connected to the electric machine and an input side connected to the bulk capacitor. The controller executes a method to estimate an internal temperature of the bulk capacitor as an estimated internal temperature. This occurs in response to an enabling condition. The controller then selectively derates the electric machine in response to the estimated internal temperature.
    Type: Application
    Filed: January 12, 2023
    Publication date: July 18, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dylan M. Day, Matthew From, Young J. Kim, Daniel J. Berry