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Time-slot-based system and method of inter-vehicle communication

  • US 8,520,695 B1
  • Filed: 07/25/2012
  • Issued: 08/27/2013
  • Est. Priority Date: 04/24/2012
  • Status: Active Grant
First Claim
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1. A vehicle-to-vehicle (V2V) communication system comprising:

  • a V2V transmitter configured to operate in a transmitting vehicle;

    wherein the V2V transmitter is configured to accept as input a subject vehicle position and a subject vehicle heading;

    wherein the V2V transmitter broadcasts V2V messages comprising;

    (i) the subject vehicle position;

    (ii) the subject vehicle heading;

    (iii) a subject vehicle speed;

    wherein the V2V broadcast messages are broadcast repeatedly in a basic time interval of predetermined duration;

    wherein the basic time interval comprises time slots of a predetermined duration;

    a plurality of basic message classes;

    wherein the basic time interval is further subdivided into class regions wherein each class region corresponds with one basic message class;

    wherein each V2V broadcast message is in one of the basic message classes; and

    wherein at least one class region is substantially restricted to messages transmitted from emergency vehicles.

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