Birch, Stewart, Kolasch & Birch, LLP
Power saving standby state maintaining device for a vehicle information apparatus
A standby state maintaining device includes a secondary battery disposed separately from a vehicle battery, a temperature sensor for the secondary battery, a charge storage member that supports charge and discharge in a temperature outside a reference range, and a controller having a first operation mode of, in a state in which a starting switch of a vehicle is off, maintaining a power saving standby state of a vehicle-mounted information apparatus by using the secondary battery when a detected value provided by the temperature sensor is within the reference range, and maintaining the power saving standby state by using the charge storage member when the detected value is outside the reference range.
MITSUBISHI ELECTRIC CORPORATION
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Hisanori Masamitsu
Yamada Ishihara