IN-VEHICLE COMMUNICATION SYSTEM AND IN-VEHICLE RELAY APPARATUS

摘要

An in-vehicle communication system and an in-vehicle relay apparatus that can perform relaying between multiple in-vehicle networks if a new in-vehicle device is connected to a said in-vehicle network, and that can prevent, if an improper in-vehicle device is connected to the in-vehicle network, the entire system from being adversely affected by the improper in-vehicle device. The in-vehicle relay apparatus that relays information between the multiple in-vehicle networks has stored therein relay destination determination information necessary to determine a relay destination of information. If a new in-vehicle device is connected to any one of the in-vehicle networks, an acquiring unit communicates with a communication device to obtain updated relay destination determination information, a determination unit determines if the updated relay destination determination information is legitimate, and an updating unit updates the relay destination determination information of the in-vehicle relay apparatus.

主权项

1. An in-vehicle communication system comprising:
a plurality of in-vehicle networks respectively connected to at least one in-vehicle device; and an in-vehicle relay apparatus that is connected to the plurality of in-vehicle networks and that relays information between the in-vehicle networks, the in-vehicle relay apparatus comprising:
a storage unit that stores relay destination determination information that is necessary to determine a destination of information to be relayed by the in-vehicle relay apparatus, anda relay destination determination unit that determines, based on the relay destination determination information stored in the storage unit, another said in-vehicle network to which received information is to be transmitted if the received information is received from one said in-vehicle network, the in-vehicle communication system further comprising: a vehicle external communication unit that transmits and receives information to and from a communication device outside of a vehicle; an acquiring unit that acquires, using the vehicle external communication unit, updated relay destination determination information from the communication device outside of the vehicle; a determination unit that determines if the updated relay destination determination information acquired by the acquiring unit satisfies a predetermined condition; and an update unit that updates the relay destination determination information stored in the storage unit of the in-vehicle relay apparatus with the updated relay destination determination information if the determination unit has determined that the updated relay destination determination information satisfies the predetermined condition.