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Vehicle use control

  • US 6,232,874 B1
  • Filed: 03/13/2000
  • Issued: 05/15/2001
  • Est. Priority Date: 03/20/1998
  • Status: Expired due to Term
First Claim
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1. A method for restricting use of a vehicle, the method comprising the steps of:

  • receiving a permitted time interval during which a selected vehicle is allowed to travel;

    for at least one selected time, determining the present time and determining if the present time is within said permitted time interval;

    provided said present time is not within said permitted time interval, taking at least one Control Action to control said use of said selected vehicle;

    provided said present time is within said permitted time interval, determining the location of said selected vehicle and determining if said selected vehicle is within a permitted travel region, said step of determining said location of said selected vehicle comprising the steps of;

    attempting to receive location determination (LD) signals from one or more selected LD signal sources; and

    provided sufficient LD signals are being received to determine said location of said selected vehicle, determining said present location of said selected vehicle; and

    provided said selected vehicle is not within said permitted travel region, taking at least one of said Control Actions to control said use of said selected vehicle.

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