US 2022/0032807 A1 · ONBOARD SYSTEM

Abstract

When software of a first electronic control unit that controls charging of an auxiliary machinery battery from a power supply by controlling a charging device is rewritten, an onboard system is configured so that charging of the auxiliary machine battery from the power supply is controlled by one or more electronic control units different from the first electronic control unit. Accordingly, even when the software of the first electronic control unit that controls the charging of the auxiliary machinery battery is rewritten, the auxiliary machinery battery can be charged by one or more electronic control units different from the first electronic control unit when the software is rewritten, and the power for rewriting the software of the first electronic control unit can be secured. This can ensure power to rewrite the software of the first electronic control unit.

Claims7

Dependent claims

An onboard system that is mounted in a vehicle, the onboard system comprising:

a power supply;
an auxiliary-machinery battery;
a charging device that charges the auxiliary-machinery battery with electric power from the power supply;
and
a plurality of electronic control units that operates with electric power which is supplied from the auxiliary-machinery battery,
wherein a first electronic control unit configured to be able to rewrite software and to control the charging device such that charging of the auxiliary-machinery battery with the power supply is controlled is included as one of the plurality of electronic control units, and
wherein one or more electronic control units which are different from the first electronic control unit are configured to control charging of the auxiliary-machinery battery with the power supply when the software of the first electronic control unit is rewritten.

4 more elements

Dependencies are inferred from the claim text.

Onboard system

Life of this patent

Onboard system

Life of this patent

Abstract

Claims7