Vehicle and vehicle control method

A control method for a vehicle, the vehicle including a power interface configured to perform at least one of power transmission to and power reception from an external apparatus, a power accumulation device, and a power line that constitutes at least a part of a current path between the power interface and the power accumulation device, the control method comprising:

• acquiring an ambient temperature of the power line;
• and
• controlling charging and discharging of the power accumulation device using a plurality of profiles for protecting the power line, wherein:
• the profiles are determined such that degrees of reduction of a magnitude of a current that flows through the power line and an energization time become larger as an ambient temperature of the power line becomes higher;
• the profiles include a first profile and a second profile that has a degree of reduction larger than a degree of reduction of the first profile;
• and
• the controlling includes calculating, before charging and discharging of the power accumulation device, an elapsed time since last charging and discharging of the power accumulation device, controlling charging and discharging of the power accumulation device using one of the first and second profiles that matches the ambient temperature when the elapsed time is longer than a reference time, and controlling charging and discharging of the power accumulation device using the second profile, irrespective of the ambient temperature, when the elapsed time is shorter than the reference time.