Details are given of a Doppler radar skid control system, consisting of a Doppler radar vehicle speed sensor, a wheel speed sensor, a controller and an actuator. The device gives safe and effective braking of vehicles by preventing the rear wheels from locking. This is achieved by comparing ground speed measured by radar during braking, with the wheel speed, obtaining the wheel slip ratio and controlling it according to a set value. If the hydraulic pressure of the brakes is too high during emergency braking and the slip ratio exceeds the set value, an actuator operates to release brake pressure once, and to increase pressure when the speed of the wheels increases. This procedure is repeated until the set value of slip ratio is obtained, and the vehicle is stopped. A brief account is given of the effectiveness of the Doppler radar device when mounted on a passenger car. /TRRL/

  • Availability:
  • Corporate Authors:

    Dempa Publications, Incorporated

    380 Madison Avenue
    New York, NY  United States  10017
  • Authors:
    • Kaneko, Y
    • Fukumori, Y
  • Publication Date: 1978-1


  • English

Media Info

  • Features: Figures; Photos; Tables;
  • Pagination: p. 54-57
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00188254
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 28 1979 12:00AM