Pulsating Or Alternating Current Or Potential For The Discharge Control Means Patents (Class 324/411)
  • Patent number: 10549649
    Abstract: A method for predicting power capability of a battery pack in a system includes determining an open-circuit voltage of the battery pack via a controller, calculating pack resistance using measured voltage and current during a charge or discharge event, and calculating a maximum current of the pack using the open-circuit voltage and internal resistance. The method includes selecting the lower of an absolute value of each of the calculated maximum discharge current and predetermined current limit, calculating the discharge power capability of the battery pack using the selected lower absolute value, and controlling a state of the system using the calculated power capability. The method also controls the charging current and parameters during a DC fast-charging operation. A system includes the battery pack, electric machine, and controller. The system may be a vehicle having an electric powertrain, with an electric machine powered by the battery pack.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: February 4, 2020
    Assignee: GM Global Technology Operations LLC
    Inventor: Ramona Y. Ying
  • Patent number: 10488453
    Abstract: A diagnostic system for a vehicle electrical system having a first and second diagnostic application is provided. The first diagnostic application commands a high side driver circuit and a low side driver circuit to transition a contactor to an open operational position when a first difference value is greater than a first threshold difference value indicating that at least one of the first and second analog multiplexers is malfunctioning. The second diagnostic application commanding the high side driver circuit and the low side driver circuit to transition the contactor to the open operational position when a second difference value is greater than the first threshold difference value indicating that at least one of the first and second analog multiplexers is malfunctioning.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: November 26, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Kerfegar K. Katrak, Sagar V. Nagaluru, Thaddeus Steyskal, Su Hyuk Jang, Kunal Tipnis
  • Patent number: 7190170
    Abstract: A system and method for decreasing partial discharge between adjacent conductive plates includes suspending a plurality of particles in the space between adjacent plates of a magnetic coil. The plurality of particles are generally uniformly dispersed in the space and allow for increased partial discharge inception voltages. Such a construction allows the coil to operate at elevated driving voltages with reduced partial discharge between adjacent plates.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: March 13, 2007
    Assignee: General Electric Company
    Inventors: Derek Allan Seeber, Timothy John Havens
  • Patent number: 7145343
    Abstract: A repair device for fixing a malfunctioning shunt across a failed filament in a light bulb in a group of series-connected miniature decorative bulbs includes a high-voltage pulse generator producing one or more pulses of a magnitude greater than the standard AC power line voltage. A connector receives the pulses from the pulse generator and supplies them to the group of series-connected miniature decorative bulbs. The pulse generator may be a piezoelectric pulse generator, a battery-powered electronic pulse generator, and/or an AC-powered electrical pulse generator.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: December 5, 2006
    Inventors: W. Richard Frederick, John Prey
  • Patent number: 6984984
    Abstract: A repair device for fixing a malfunctioning shunt across a failed filament in a light bulb in a group of series-connected miniature decorative bulbs includes a high-voltage pulse generator producing one or more pulses of a magnitude greater than the standard AC power line voltage. A connector receives the pulses from the pulse generator and supplies them to the group of series-connected miniature decorative bulbs. The pulse generator may be a piezoelectric pulse generator, a battery-powered electronic pulse generator, and/or an AC-powered electrical pulse generator.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: January 10, 2006
    Assignee: Integrated Power Components, Inc.
    Inventors: W. Richard Frederick, John Prey
  • Patent number: 6734678
    Abstract: A repair device for fixing a malfunctioning shunt across a failed filament in a light bulb in a group of series-connected miniature decorative bulbs includes a high-voltage pulse generator producing one or more pulses of a magnitude greater than the standard AC power line voltage. A connector receives the pulses from the pulse generator and supplies them to the group of series-connected miniature decorative bulbs. The pulse generator may be a piezoelectric pulse generator, a battery-powered electronic pulse generator, and/or an AC-powered electrical pulse generator.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: May 11, 2004
    Assignee: Integrated Power Components, Inc.
    Inventor: W. Richard Frederick
  • Patent number: 4894611
    Abstract: A measuring system particularly suitably usable with an apparatus having a plurality of electron emitting sources, for measuring the characteristics of the electron emitting sources is disclosed. In the measuring system, the electron emitting sources are driven so that they emit electron flows of predetermined and different frequencies. The emitted electron flows are collected and, thereafter, only those signals having components corresponding to the predetermined frequencies are extracted. Based on the extracted signals, the characteristics of the electron emitting sources are measured at the same time and independently of each other.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: January 16, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Isamu Shimoda, Mamoru Miyawaki, Akira Suzuki, Tetsuya Kaneko, Takeo Tsukamoto, Toshihiko Takeda, Masahiko Okunuki