AUTOMATIC DRIVING CONTROL SYSTEM AND AUTOMATIC DRIVING CONTROL METHOD

摘要

Provided are an automatic driving control system and an automatic driving control method that are capable of clearing away suspicion of a foul by exchanging a “hand” for determining priority of passage by a fair method that allows no foul when automatically driven vehicles face each other on a road. When the automatically driven vehicles face each other on the road, the “hand” for determining the priority of passage is exchanged by performing transmission/reception two times by use of a composite number of prime numbers each having a large number of digits.

主权项

1. An automatic driving control system for a vehicle, comprising a control operation part for determining, when automatically driven vehicles of an own vehicle and another vehicle face each other on a road, priority of passage by exchanging a “hand” through a communication device for performing vehicle-to-vehicle communications provided to the vehicle,
the control operation part of the own vehicle being configured to:
as first transmission/reception:
multiply a prime number 1 indicating the “hand” of the own vehicle by a prime number 2 that is different from the prime number 1 and unknown to the another vehicle, and transmit a result thereof to the another vehicle as (first composite number)=(prime number 1)×(prime number 2); andreceive, from the another vehicle, (second composite number)=(prime number 3)×(prime number 4) obtained by multiplying a prime number 3 indicating a “hand” of the another vehicle by a prime number 4 that is different from the prime number 3 and unknown to the own vehicle;as second transmission/reception:
multiply the second composite number received in the first transmission/reception by the prime number 2, and transmit a result thereof to the another vehicle as (third composite number)=(prime number 3)×(prime number 4)×(prime number 2); andreceive, from the another vehicle, (fourth composite number)=(prime number 1)×(prime number 2)×(prime number 4) obtained by multiplying the first composite number transmitted in the first transmission/reception by the prime number 4;as processing for acquiring the “hand”:
acquire, from the first composite number and the second composite number transmitted/received in the first transmission/reception and the fourth composite number received in the second transmission/reception, the prime number 3 indicating the “hand” of the another vehicle by an arithmetic operation:
(first composite number)×(second composite number)/(fourth composite number)=((prime number 1)×(prime number 2))×((prime number 3)×(prime number 4))/((prime number 1)×(prime number 2)×(prime number 4))=(prime number 3); and allow the another vehicle to acquire, from the first composite number and the second composite number transmitted/received in the first transmission/reception and the third composite number received in the second transmission/reception, the prime number 1 indicating the “hand” of the own vehicle by an arithmetic operation:
(first composite number)×(second composite number)/(third composite number)=((prime number 1)×(prime number 2))×((prime number 3)×(prime number 4))/((prime number 3)×(prime number 4)×(prime number 2))=(prime number 1); and as processing for determining the priority,
determine the priority of passage between the own vehicle and the another vehicle based on a win-loss outcome obtained from the prime number 3 indicating the “hand” of the another vehicle acquired in the processing for acquiring the “hand” and the prime number 1 indicating the “hand” of the own vehicle, wherein the prime number 1, the prime number 2, the prime number 3, and the prime number 4 have such numbers of digits as to inhibit a central processing unit that forms the control operation part from performing prime factorization for the first composite number and the second composite number within a time period until the second transmission/reception is performed after the first transmission/reception is performed.