Kenyon & Kenyon LLP
Power supply system for electrically powered vehicle, electrically powered vehicle, and method for controlling power supply system of electrically powered vehicle
A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is sequentially connected to one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. The sub power storage device undergoes a connection switching process, and when there is no new sub power storage device remaining for replacement, then, in accordance with that sub power storage device's SOC and the vehicle's state, a request is generated to disconnect the sub power storage device. Here, when a condition regarding a temperature of at least one of the main power storage device and the plurality of sub power storage devices is satisfied, generation of a disconnection request is prohibited, in order to protect the main power storage device.
Toyota Jidosha Kabushiki Kaisha
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Norihiko
Kato