Patents by Inventor Michael M. Gandham

Michael M. Gandham 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).

  • Method and apparatus for controlling an electrified powertrain system of a vehicle
    Patent number: 9731605
    Abstract: An electrified powertrain system for a vehicle includes an electric machine coupled to a driveline. An inverter controller communicates directly with an auxiliary power module. An ignition module indicates either a key-on state or a key-off state. When the ignition module is in a key-off state, a low-power DC/DC converter generates an output voltage originating on the high-voltage DC bus having a magnitude sufficient to activate the inverter controller. The inverter controller detects a key-off uncontrolled generator (UCG) mode. The inverter controller directly communicates detection of the key-off UCG mode to the auxiliary power module. The inverter controller controls the inverter. The auxiliary power module supplies electric power to operate low-voltage electrically-powered powertrain actuators.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: August 15, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Konking (Michael) Wang, Aniket Kothari, William T. Ivan, Steven V. Wybo, Ying Tan, Michael M. Gandham
  • METHOD AND APPARATUS FOR CONTROLLING AN ELECTRIFIED POWERTRAIN SYSTEM OF A VEHICLE
    Publication number: 20160250927
    Abstract: An electrified powertrain system for a vehicle includes an electric machine coupled to a driveline. An inverter controller communicates directly with an auxiliary power module. An ignition module indicates either a key-on state or a key-off state. When the ignition module is in a key-off state, a low-power DC/DC converter generates an output voltage originating on the high-voltage DC bus having a magnitude sufficient to activate the inverter controller. The inverter controller detects a key-off uncontrolled generator (UCG) mode. The inverter controller directly communicates detection of the key-off UCG mode to the auxiliary power module. The inverter controller controls the inverter. The auxiliary power module supplies electric power to operate low-voltage electrically-powered powertrain actuators.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 1, 2016
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Konking (Michael) Wang, Aniket Kothari, William T. Ivan, Steven V. Wybo, Ying Tan, Michael M. Gandham