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Vehicle spacing control system

  • US 6,434,471 B1
  • Filed: 06/22/2000
  • Issued: 08/13/2002
  • Est. Priority Date: 06/23/1999
  • Status: Active Grant
First Claim
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1. A vehicle spacing control apparatus comprising:

  • a vehicle spacing sensor sensing an actual vehicle spacing;

    a vehicle speed sensor sensing an actual vehicle speed;

    a selector changing a selected vehicle-to-vehicle time gap among a plurality of discrete values; and

    a controller determining a desired vehicle-to-vehicle time gap so that the desired time gap varies at a predetermined rate in response to a change in the selected time gap, the predetermined rate being a predetermined amount of change per unit time, determining a desired vehicle spacing in accordance with the desired time gap and the actual vehicle speed, and controlling at least one of a driving force and a braking force of a controlled vehicle so as to bring the actual vehicle spacing closer to the desired vehicle spacing.

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