Patents Assigned to Transportation Techniques, LLC.
  • Publication number: 20020079853
    Abstract: A series type hybrid electric vehicle including a generator set having an internal combustion engine and a generator, a battery array and at least one electric motor includes a controller for controlling propulsion of the vehicle. The controller generates a second signal having a value proportional to the value of a first signal, indicative of user demand, and indicative of a demand of the at least one electric motor, determines if the value of the first signal is larger than the value of the second signal, increases the value of a command signal to the at least one electric motor, if the value of the first signal is not larger than the value of the second signal, and decreases the value of the command signal, if the value of the first signal is larger than the value of the second signal.
    Type: Application
    Filed: December 27, 2000
    Publication date: June 27, 2002
    Applicant: TRANSPORTATION TECHNIQUES LLC
    Inventors: Robert W. Schmitz, Thomas F. Wilton, Joshua J. Anderson
  • Patent number: 6333620
    Abstract: A series type hybrid electric vehicle including a generator set having an internal combustion engine and a generator, a battery array and at least one electric motor includes a controller for maintaining a state of charge of the battery array within a control limit. A controller of the vehicle determines if the vehicle is in one of a plurality of forward driving modes, compares a state of charge of the battery array to an upper control limit associated with a forward driving mode, decreases generated by the generator, if the state of charge is equal to or greater than the associated upper control limit, and increases the power generated by the generator, if the state of charge is less than the associated upper control limit.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: December 25, 2001
    Assignee: Transportation Techniques LLC
    Inventors: Robert W. Schmitz, Thomas F. Wilton, Joshua J. Anderson
  • Publication number: 20010025737
    Abstract: A wheel suspension assembly for a vehicle having wheels and a chassis, the vehicle suspension system comprising a suspension unit for at least one wheel, the suspension unit including a first pivot arm of which a wheel is mounted and a second pivot arm mounted on the chassis, a drive unit mounted to the chassis, and a transmission unit between the drive unit and the wheel, the transmission unit arranged to accommodate pivoting of the second pivot arm relative to the chassis during operation of the vehicle.
    Type: Application
    Filed: March 30, 2001
    Publication date: October 4, 2001
    Applicant: TRANSPORTATION TECHNIQUES, LLC
    Inventor: Val J. Dare-Bryan