Risk management in a vehicle anti-collision system

A method of vehicle-to-vehicle (V2V) collision avoidance comprising:

• determining a risk of collision by a first vehicle;
• generating a risk value responsive to the risk of collision;
• transmitting by the first vehicle a V2V risk message comprising the risk value;
• receiving the V2V risk message by a second vehicle;
• generating a warning to the driver of second vehicle, wherein the warning is responsive the risk value in the risk message.

A method of vehicle-to-vehicle (V2V) collision avoidance comprising:

• determining, by a first vehicle, a likely collision;
• generating a collision type value responsive to the type of likely collision;
• transmitting by the first vehicle a V2V collision type message comprising the collision type value;
• receiving the V2V collision type message by a second vehicle;
• generating a warning to the driver of second vehicle, wherein the warning is responsive the collision type value in the V2V collision type message.