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Collision avoidance system for snowmobiles

  • US 7,095,315 B2
  • Filed: 02/26/2004
  • Issued: 08/22/2006
  • Est. Priority Date: 02/26/2004
  • Status: Expired due to Fees
First Claim
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1. A collision avoidance system for a vehicle, comprising:

  • a plurality of sensors for detecting the presence of approaching obstacles in a plurality of danger zones;

    wherein said plurality of sensors comprise a plurality of sensor pairs arranged for detecting approaching objects in said danger zones, and wherein each sensor pair comprises a pyroelectric heat sensor and an ultrasonic speed sensor;

    a control unit for processing signals received from the sensors;

    an interface for providing an audible warning to a driver that an approaching obstacle has been detected by one or more of said sensors; and

    said control unit having a means for changing the audible warning to indicate to the driver in which zone the approaching obstacle is located.

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