Vehicle-mounted device, program, and information processing method

An information processing method for causing a computer that is communicably connected to a vehicle-mounted ECU configured to perform control of a vehicle-mounted load to be mounted in a vehicle, and that receives supply of power from a power source device mounted in the vehicle, to execute the following processing:

• executing processing related to control of power supply to the vehicle-mounted ECU;
• and taking over control to be performed by the vehicle-mounted ECU on the vehicle-mounted load, according to a state of the vehicle-mounted ECU,
• wherein the power source device and the vehicle-mounted ECU are connected to each other via a first relay,
• the power source device and the vehicle-mounted load are connected to each other via a second relay subjected to opening and closing control by the vehicle-mounted ECU, the computer further executes the following processing:
• performing control of power supply to the vehicle-mounted ECU by performing opening and closing control of the first relay;
• and
• taking over the control to be performed by the vehicle-mounted ECU on the vehicle-mounted load by performing opening and closing control of the second relay,
• control lines that are made redundant due to respectively extending from the vehicle-mounted ECU and the vehicle-mounted device are connected to the second relay, and
• the redundant control lines are respectively connected to the same portion of the second relay,
• acquires a drive request for the vehicle-mounted load;
• and
• takes over the control to be performed by the vehicle-mounted ECU on the vehicle-mounted load, in response to the acquired drive request.

A computer program product for causing a computer that is communicably connected to a vehicle-mounted ECU configured to perform control of a vehicle-mounted load to be mounted in a vehicle, and that receives supply of power from a power source device mounted in the vehicle, the computer program product comprising a non-transitory, machine-readable medium storing instructions which, when executed by at least one programmable processor of the computer, causes at least one programmable processor to execute the following processing:

• executing processing related to control of power supply to the vehicle-mounted ECU;
• and taking over control to be performed by the vehicle-mounted ECU on the vehicle-mounted load, according to a state of the vehicle-mounted ECU,
• the power source device and the vehicle-mounted ECU are connected to each other via a first relay,
• the power source device and the vehicle-mounted load are connected to each other via a second relay subjected to opening and closing control by the vehicle-mounted ECU,
• the computer further executes the following processing:
• performing control of power supply to the vehicle-mounted ECU by performing opening and closing control of the first relay, and
• taking over the control to be performed by the vehicle-mounted ECU on the vehicle-mounted load by performing opening and closing control of the second relay, and
• control lines that are made redundant due to respectively extending from the vehicle-mounted ECU and the vehicle-mounted device are connected to the second relay,
• the redundant control lines are respectively connected to the same portion of the second relay;
• acquires a drive request for the vehicle-mounted load;
• and
• takes over the control to be performed by the vehicle-mounted ECU on the vehicle-mounted load, in response to the acquired drive request.