The active ride control system for the TERRAFOIL vehicle is described. The passenger compartment of this vehicle is supported above the roadway by long flexible struts, and its undercarriage is enclosed in an underground guideway. Lateral loads are imposed on the vehicle by cornering maneuvers, winds, and guideway roughness. This study shows that electrohydraulic servomechanisms designed to apply control moments at the base of the supporting struts can adequately confine the lateral motions of the passenger compartment within specified limits, even with extreme load disturbances. A dynamic model including the flexible strut shows the system to be controllable through the servovalve input signal and observable through feedback signals from the servopiston and an accelerometer mounted on the passenger compartment. Feedback control is achieved through a state estimator and an optimal control law matrix.

  • Corporate Authors:

    American Institute of Aeronautics and Astronautics

    1290 Avenue of the Americas
    New York, NY  United States  10019
  • Authors:
    • Furman Jr, J E
    • Hartz, B J
    • CLARK, R N
  • Publication Date: 1977-2

Media Info

  • Features: References;
  • Pagination: p. 118-123
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00165175
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Dec 27 1982 12:00AM