Patents Assigned to Lockheed Martin Control Systems
  • 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