US 12,236,228 B2
Management data rewrite system and vehicle including management data rewrite system
Masaaki Harada, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Feb. 24, 2023, as Appl. No. 18/113,679.
Claims priority of application No. 2022-037429 (JP), filed on Mar. 10, 2022.
Prior Publication US 2023/0289172 A1, Sep. 14, 2023
Int. Cl. G06F 8/65 (2018.01); G07C 5/00 (2006.01); H04L 67/12 (2022.01)
CPC G06F 8/65 (2013.01) [G07C 5/008 (2013.01); H04L 67/12 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A management data rewrite system comprising:
a first electronic control unit including a non-volatile memory, the non-volatile memory being configured to hold management data regarding multiple electronic control units; and
a second electronic control unit in which an update of in-vehicle software is made, the second electronic control unit being coupled to the first electronic control unit and configured to carry out transmission and reception of data to and from the first electronic control unit through an in-vehicle network,
the management data rewrite system being configured to rewrite the management data on an occasion of the update of the in-vehicle software, and
the second electronic control unit being configured to
receive an entirety of the management data from the non-volatile memory of the first electronic control unit,
rewrite a data portion related to the update of the in-vehicle software in the management data, into new data, and
transmit an entirety of the management data containing the rewritten data portion to the first electronic control unit, to allow the non-volatile memory to hold the entirety of the management data containing the rewritten data portion.