Sensors arrangement

  • US 6,493,612 B1
  • Filed: 06/18/2001
  • Issued: 12/10/2002
  • Est. Priority Date: 12/18/1998
  • Status: Expired due to Term
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First Claim
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1. An autonomous vehicle comprising wheels for supporting the vehicle and for allowing the vehicle to traverse a surface, downward looking wheel sensors for sensing whether there is a surface in front of the wheels, a further sensor at or near a leading edge of the vehicle for sensing whether there is a surface beneath the leading edge of the vehicle and a control apparatus for controlling movement of the vehicle, the control apparatus being arranged to permit movement of the vehicle when the leading edge sensor senses that there is no surface beneath the leading edge of the vehicle, provided that the wheel sensors indicate that there is a surface adjacent the wheel.

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