US 12,266,225 B2
On-vehicle communication system, switch device, communication control method, and communication control program
Takehiro Kawauchi, Osaka (JP); Akihito Iwata, Osaka (JP); Takeshi Hagihara, Yokkaichi (JP); Yasuhiro Yabuuchi, Yokkaichi (JP); Yuanjun Xian, Yokkaichi (JP); and Makoto Mashita, Yokkaichi (JP)
Assigned to SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP); SUMITOMO WIRING SYSTEMS, LTD., Mie (JP); and AUTONETWORKS TECHNOLOGIES, LTD., Mie (JP)
Appl. No. 16/975,931
Filed by SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP); SUMITOMO WIRING SYSTEMS, LTD., Yokkaichi (JP); and AUTONETWORKS TECHNOLOGIES, LTD., Yokkaichi (JP)
PCT Filed Jan. 31, 2019, PCT No. PCT/JP2019/003299
§ 371(c)(1), (2) Date Aug. 26, 2020,
PCT Pub. No. WO2019/187613, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 2018-058761 (JP), filed on Mar. 26, 2018.
Prior Publication US 2020/0410785 A1, Dec. 31, 2020
Int. Cl. G07C 5/00 (2006.01); G07C 5/08 (2006.01); H04L 12/40 (2006.01); H04L 49/55 (2022.01); H04W 4/44 (2018.01)
CPC G07C 5/008 (2013.01) [G07C 5/0816 (2013.01); H04L 12/40 (2013.01); H04L 49/557 (2013.01); H04W 4/44 (2018.02); H04L 2012/40273 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An on-vehicle communication system comprising:
a first switch device and a second switch device each configured to relay data between a plurality of function units mounted to a vehicle, wherein
the first switch device includes a processor and is programmed to:
detect a first abnormality regarding a function unit;
generate an OAM frame including abnormality information indicating the detected first abnormality and address of the function unit where the first abnormality has been detected;
transmit the generated OAM frame to the second switch device, and
the second switch device includes a processor and is programmed to:
receive the OAM frame transmitted from the first switch device;
when the first abnormality has been detected by the first switch device, perform, based on the received OAM frame, a communication protocol change process of causing the function unit for which the first abnormality has been detected, to change a communication protocol that is used from a first communication protocol to a second communication protocol different from the first communication protocol; and
when a second abnormality different from the first abnormality has been detected by the first switch device, not perform the communication protocol change process and perform a communication path change process of switching a communication path to the function unit, from a first communication path via the first switch device to a second communication path via a third switch device different from the first switch device.