Power management device
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorKei Murayama
Life of this patent
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Abstract
In order to manage power exchanged between an electric vehicle 1 and a house system 2 including an electric device 22, a power management device includes a vehicle detection portion 26 configured to detect a vehicle available for a resident of the house. A controller 24 determines power supplied from the electric vehicle 1 to the house system 2 in accordance with the presence of the vehicle detected by the vehicle detection portion 26. The power management device can thereby supply power from an electric vehicle to a house while securing the situation where the resident can move by vehicle in emergencies.
Claims6
A power management device, which manages power exchanged between an electric vehicle and a house including an electric device, the device comprising:
- a vehicle detection portion configured to detect presence of a second vehicle which is available for a resident of the house;
- and
- a power controller configured to determine power supplied from the electric vehicle to the house in accordance with the presence of the second vehicle detected by the vehicle detection portion, wherein
- the power controller changes a lower limit of a charge level of the electric vehicle to a predetermined value A in accordance with the presence of the second vehicle detected by the vehicle detection portion and discharges power from the electric vehicle to the house until the charge level reaches the predetermined value A, and
- in a case where the presence of the second vehicle is not detected by the vehicle detection portion, the power controller sets the lower limit of the charge level to a predetermined value B higher than the predetermined value A and discharges power from the electric vehicle to the house until the charge level reaches the predetermined value B.
Dependencies are inferred from the claim text.