18380024. VEHICLE COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND STORAGE MEDIUM STORING COMMUNICATION PROGRAM simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

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VEHICLE COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND STORAGE MEDIUM STORING COMMUNICATION PROGRAM

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Masahide Banno of Nagoya-shi (JP)

VEHICLE COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND STORAGE MEDIUM STORING COMMUNICATION PROGRAM - A simplified explanation of the abstract

This abstract first appeared for US patent application 18380024 titled 'VEHICLE COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND STORAGE MEDIUM STORING COMMUNICATION PROGRAM

Simplified Explanation

The patent application describes a vehicle communication system that allows multiple control devices to communicate with each other. The system includes a transmitting device and a receiving device, both equipped with a memory and a processor.

  • The transmitting device's processor generates authentication information based on a message and an encryption key. If there is an abnormality with the encryption key, the transmitting device sends predetermined authentication information and the message to the receiving device.
  • The receiving device's processor generates authentication information based on the encryption key and the received message. It then compares the first authentication information (received from the transmitting device) with the second authentication information (generated by the receiving device) to authenticate the message. If authentication fails even once after the receiving device starts up, and the received first authentication information matches the predetermined authentication information, the receiving device accepts the received message.

Potential applications of this technology:

  • Vehicle-to-vehicle communication: The system can be used to enable secure communication between vehicles, allowing them to exchange information about their position, speed, and other relevant data.
  • Vehicle-to-infrastructure communication: The system can facilitate communication between vehicles and infrastructure, such as traffic lights or road signs, to improve traffic flow and safety.

Problems solved by this technology:

  • Secure communication: The system ensures that only authenticated messages are accepted, preventing unauthorized access or tampering of data exchanged between vehicles or with infrastructure.
  • Abnormality detection: The system can detect abnormalities in the encryption key and take appropriate actions, such as sending predetermined authentication information, to maintain secure communication.

Benefits of this technology:

  • Improved safety: Secure communication between vehicles and infrastructure can enhance safety by enabling real-time exchange of information and facilitating advanced driver assistance systems.
  • Efficient traffic management: The system allows for efficient traffic management by enabling vehicles and infrastructure to communicate and coordinate, leading to reduced congestion and optimized traffic flow.


Original Abstract Submitted

A vehicle communication system, including plural control devices configured to carry out communication with one another, wherein a transmitting device and a receiving device each include a memory and a processor. The processor at the transmitting device generates first authentication information based on a message and the encryption key, and in a case in which there is an abnormality at the encryption key, transmits the predetermined authentication information and the message to the receiving device. The processor at the receiving device generates second authentication information based on the encryption key and the received message, collates the first authentication information and the second authentication information, and authenticates the message, and in a case in which, after starting-up of the receiving device, authentication has not succeeded even once, and the received first authentication information and the predetermined authentication information match, accepts the received message.

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