V2V SAFETY SYSTEM USING LEARNED SIGNAL TIMING
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Abstract
A vehicle-to-vehicle (V2V) communication transponder for use in V2V communication, safety, optimization and anti-collision systems wherein the transponder records and shares observed traffic signal timing and phasing, and uses this information to make recommendations or perform automatic operation to optimize parameters such as safety, gas mileage, travel time, and overall traffic flow. Methods for sharing and making recommendations are described. Embodiments include considerations of traffic and road history in recommendations. No central authority, road-side equipment, (RSU), or pre-determined lane maps are required. Embodiments include a hybrid protocol using both TDMA and CSMA. Some embodiments are free of MAC and IP addresses. Embodiments include equipped vehicles and V2V system using the transponder.
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Citations
48 Claims
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1-33. -33. (canceled)
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34. A vehicle-to-vehicle (V2V) communication transponder adapted to operate in a first vehicle wherein the transponder is adapted to accept as input a first location of the first vehicle and a vehicle heading of the first vehicle, and wherein the transponder is adapted to broadcast a series of V2V safety messages wherein a majority of V2V safety message comprise:
- (i) the first vehicle position;
(ii) the first vehicle heading; and
(iii) a first vehicle speed; and
wherein improvement is;the transponder comprises a time base; the transponder comprises a signal timing store in non-transitory memory, the signal timing store comprising a plurality of signal timing records, wherein each signal timing record comprises;
(i) a location of a traffic signal, (ii) a cycle time for the traffic signal, (iii) a phase sequence for the traffic signal. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
- (i) the first vehicle position;
Specification