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AssigneeToyota Jidosha Kabushiki Kaisha
InventorsOsamu Hirashima, Yuusuke Satoh, Katsunori Kawai, Masahiro Makino, Koutarou Hara
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An on-vehicle gateway apparatus that carries out authentication of an external apparatus at a time of connection between the external apparatus and a vehicle, and relays communications between the external apparatus and in-vehicle communication when the authentication is successful, operates due to power supply from the external apparatus at a time of connection between the external apparatus and the vehicle, and carries out authentication of the external apparatus.
An on-vehicle gateway apparatus that carries out authentication of an external apparatus at a time of connection between the external apparatus and a vehicle, and relays communications between the external apparatus and in-vehicle communication when the authentication is successful, wherein
An on-vehicle gateway apparatus that carries out authentication of an external apparatus at a time of connection between the external apparatus and a vehicle, and relays communications between the external apparatus and in-vehicle communication when the authentication is successful, the on-vehicle gateway apparatus comprising:
A communication system for a vehicle, comprising:
Dependencies are inferred from the claim text.
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Security arrangements; Authentication; Protecting privacy or anonymity: authentication
Bus networks: architecture of a communication node
LAN interconnection over a bridge based backbone: single bridge functionality, e.g. connection of two networks over a single bridge
Packet switching elements: routing or path finding in a switch fabric
About 5 years 1 month of term left · ends 4 Dec 2031 (estimated)
This application is a national phase application of International Application No. PCT/JP2011/070767, filed Sep. 12, 2011, the content of which is incorporated herein by reference.
The present invention relates to an on-vehicle gateway apparatus and a communication system for a vehicle. In particular, the present invention relates to an on-vehicle gateway apparatus that, at a time of connection between an external apparatus and a vehicle, carries out authentication configuration of the external apparatus, and relays communications between the external apparatus and in-vehicle communication when the external apparatus has been authenticated, and a communication system for a vehicle.
A relay unit for a vehicle has been known which prevents unauthorized access to an on-vehicle LAN (Local Area Network) through a diag connector or the like when an off-vehicle apparatus such as a fault diagnosis tool is connected to the vehicle (for example, see Patent Document 1). In a relay unit for a vehicle described in Patent Document 1, a gateway ECU (Electronic Control Unit) that relays data communication between an on-vehicle LAN and an off-vehicle apparatus is mounted. The gateway ECU authenticates the off-vehicle apparatus, and thus, allows only legitimate access. Patent Document 1: Japanese Laid-Open Patent Application No. 2003-46536 Patent Document 2: Japanese Laid-Open Patent Application No. 2010-232867
FIG. 1 is a configuration diagram showing one example of an on-vehicle gateway apparatus and a communication system for a vehicle according to Embodiment 1 of the present invention.
FIG. 2 is a diagram showing a conventional gateway apparatus and communication system for a vehicle as comparative examples.
FIG. 3 is a configuration diagram showing one example of an on-vehicle gateway apparatus and a communication system for a vehicle according to Embodiment 2 of the present invention.
10-14 gateway ECUs (on-vehicle gateway apparatuses) 20 transceiver for communication for outside of vehicle 21 MCU 22 transceiver for in-vehicle communication 23-26, 55, 85 power supply lines 30 bus for in-vehicle communication 40 connector 50 on-vehicle battery 60-63 external apparatuses 70 communication means 80 battery 81-83, 83a, 84 power supply circuits 90 power supply switch control means 91, 92 power supply switch means 95 control line 100 vehicle
Below, modes for carrying out the present invention will be described with reference to drawings.
FIG. 1 is a configuration diagram showing one example of an on-vehicle gateway apparatus and a communication system for a vehicle according to Embodiment 1. In FIG. 1, the communication system for a vehicle according to Embodiment 1 includes a gateway ECU (Electronic Control Unit) 10, a bus 30 for in-vehicle communication, a connector 40, and an external apparatus 60. Further, as an associated element, a vehicle 100 is shown. The gateway ECU 10, the bus 30 for in-vehicle communication and the connector 40 are installed inside the vehicle 100, and the external apparatus 60 is installed outside the vehicle 100. Note that an on-vehicle gateway apparatus can be referred to as a gateway ECU for the present embodiment and subsequent embodiments.