On-board update system and on-board update device

Abstract

Provided is an on-board update system and an on-board update device that can suppress battery exhaustion associated with update processing of an on-board apparatus. An on-board update system according to the present embodiment is provided with: an on-board apparatus that operates by receiving power supplied from a battery that is installed in a vehicle and executing a program stored in a storage unit; a first relay that is arranged in a power supply path from the battery to an on-board electronic component that is installed in the vehicle, the first relay switching the power supply path between conduction and interruption; an on-board update device that includes an update processor that performs processing that updates the program that is stored in the storage unit of the on-board apparatus; and a switch control unit that switches the first relay to an interrupted state when the update processor performs update processing.

Dependencies are inferred from the claim text.