Patents by Inventor Lee Gregor Hofmann

Lee Gregor Hofmann 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).

  • Energy management system for hybrid electric vehicles
    Patent number: 6230496
    Abstract: An energy control unit for a hybrid vehicle is operable to control stored energy of an energy storage unit such that the energy level of the hybrid vehicle is maintained substantially at a desired magnitude. The energy level of the hybrid vehicle is a function of at least: (i) mechanical kinetic energy of the hybrid vehicle; (ii) mechanical potential energy of the hybrid vehicle; and (iii) potential energy of the energy storage unit.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: May 15, 2001
    Assignee: Lockheed Martin Control Systems
    Inventors: Lee Gregor Hofmann, William Anders Peterson, Garey George Roden