Alerting predicted accidents between driverless cars

A method for handling a prediction that a first motor-vehicle accident involving first and second motor-vehicles will occur, the method comprising:

• a. operating an onboard computer of the first motor-vehicle to predict that the first motor-vehicle accident between the first and second motor-vehicles will occur;
• b. determining, by the onboard computer of the first motor-vehicle, if changing a velocity of the first motor-vehicle in order to achieve at least one of the following:
• (i) avoid the first motor-vehicle accident,
• (ii) reduce a likelihood thereof, and
• (iii) reduce a severity thereof,
• would result in one or more of:
• A. a second motor-vehicle accident occurring between the first motor-vehicle and a third motor-vehicle;
• and
• B. an increase in a likelihood that the second motor-vehicle accident will occur;
• and
• c. in response to a positive determining, performing at least one vehicle control action by the onboard computer of the first motor-vehicle for adjusting the velocity of the first motor-vehicle according to at least one of:
• i. respective velocities of the second and third motor-vehicles;
• and
• ii. respective accelerations of the second and third motor vehicles.

An anti-accident device for operation onboard a host motor-vehicle, the anti-accident device comprising:

• a. a prediction-engine for:
• processing factual input data about a plurality of motor-vehicles and computationally predicting that a first motor-vehicle accident between the host motor-vehicle and a first external motor-vehicle will occur;
• and
• determining if changing a velocity of the host motor-vehicle in order to achieve at least one of the following:
• (i) to avoid the first motor-vehicle accident,
• (ii) to reduce a likelihood thereof,
• (iii) to reduce a severity thereof,
• would result in one or more of:
• (A) a second motor-vehicle accident occurring between the host motor-vehicle and a second external motor-vehicle and
• (B) an increase in a likelihood that the second motor-vehicle accident will occur;
• and
• b. a device controller for responding to a positive determining by sending control signals to one or more onboard vehicle controls of the host motor-vehicle to adjust the velocity of the host motor-vehicle according to at least one of respective velocities of the first and second external motor-vehicles and respective accelerations of the first and second external motor-vehicles.