US 12,395,416 B2
Vehicle-mounted relay device
Azusa Nakamura, Kariya (JP); Takahiro Sasaki, Kariya (JP); Shota Mizoguchi, Kariya (JP); and Masayoshi Asano, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Feb. 23, 2023, as Appl. No. 18/173,521.
Application 18/173,521 is a continuation of application No. PCT/JP2021/030758, filed on Aug. 23, 2021.
Claims priority of application No. 2020-158706 (JP), filed on Sep. 23, 2020.
Prior Publication US 2023/0208733 A1, Jun. 29, 2023
Int. Cl. H04L 43/0823 (2022.01); B60R 16/023 (2006.01); H04L 67/12 (2022.01)
CPC H04L 43/0823 (2013.01) [B60R 16/023 (2013.01); H04L 67/12 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A vehicle-mounted relay device used in a vehicle, the vehicle-mounted relay device comprising:
a hardware unit performing a hardware operation; and
a software unit performing a software operation,
wherein
the hardware operation implements functions of a first layer to a third layer of an open systems interconnection (OSI) reference model,
the software operation implements functions of a fourth layer and upper layers of the OSI reference model,
the hardware unit includes a second layer relay section, which implements a relay function in the second layer of the OSI reference model, and a third layer relay section, which implements a relay function in the third layer of the OSI reference model,
the software unit includes a vehicle information recording processing section storing vehicle information, which is sequentially transmitted from another vehicle-mounted device, in a vehicle information recording section,
the vehicle information recording section is readable by the software unit,
the hardware unit includes a first abnormality recording processing section storing, in response to an abnormal frame being detected during a data relay in the second layer relay section or in the third layer relay section, the detected abnormal frame in a first abnormality recording section,
the first abnormality recording section is readable by the software unit,
the software unit includes a first diagnostic recording processing section,
the first diagnostic recording processing section reads out the abnormal frame from the first abnormality recording section and stores the readout abnormal frame together with the vehicle information, which is read out from the vehicle information recording section, in a diagnostic information recording section as diagnostic information, and
the diagnostic information recording section is readable by the software unit.