Charging control system
AssigneeNEC Corporation
InventorsHitoshi Yano, Koji Kudo, Hiroto Iguchi, Kazuhiko Ogimoto, Kazuto Kataoka, Takashi Ikegami
Life of this patent
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Abstract
A charging controller (300) controls charging of a battery by an interface device (400-1 to 400-m) on the basis of distribution system connection time when the interface device (400-1 to 400-m) and a battery mounted on EV (500-1 to 500-n) are connected to each other and on the basis of distribution system disconnection time when they are disconnected in each of the interface devices (400-1 to 400-m).
Claims11
A charging control system, comprising:
- a distribution device that distributes power;
- a plurality of interface devices, each connected to a battery mounted on a vehicle for charging the battery with the power distributed from the distribution device;
- and
- a charging controller that controls charging in said interface device,
- wherein said charging controller controls charging to said battery by said interface device on a basis of a distribution system connection time when said interface device and said battery are connected to each other and on a basis of a distribution system disconnection time when said interface device and said battery are disconnected in each of said plurality of interface devices,
- wherein said charging controller controls the charging in compliance with a priority order of said plurality of interface devices so that a target demand amount set in advance is not exceeded, and
- wherein said charging controller:
- calculates an amount of excess or insufficient power needed to charge a battery on a basis of electricity energy that is obtained by adding the electricity energy needed to charge a battery by said interface device, which is performing charging at a present time, to the electricity energy needed to charge a battery by said interface device, which is estimated to be carrying out charging of a battery after an elapse of a predetermined time;
- and
- corrects the target demand amount on a basis of the calculated amount of excess or deficient power.
A charging controller that controls charging in a plurality of interface devices, each connected to a battery mounted on a vehicle for charging the battery by using distributed power, said charging controller comprising:
- a control portion that controls charging of said battery by said interface device on a basis of a distribution system connection time when the interface device and said battery are connected to each other and on a basis of a distribution system disconnection time when said interface device and said battery are disconnected in each of said plurality of interface devices,
- wherein said charging controller controls the charging in compliance with a priority order of said plurality of interface devices so that a target demand amount set in advance is not exceeded, and
- wherein said charging controller:
- calculates an amount of excess or insufficient power needed to charge a battery on a basis of electricity energy that is obtained by adding the electricity energy needed to charge a battery by said interface device, which is performing charging at a present time, to the electricity energy needed to charge a battery by said interface device, which is estimated to be carrying out charging of a battery after an elapse of a predetermined time;
- and
- corrects the target demand amount on a basis of the calculated amount of excess or deficient power.
A charging control method that controls charging in a plurality of interface devices, each connected to a battery mounted on a vehicle for charging the battery by using distributed power, said method comprising:
- charging said battery by using said plurality of interface devices;
- and
- controlling the charging of said battery by said interface devices on a basis of a distribution system connection time when the interface device and said battery are connected to each other and on a basis of a distribution system disconnection time when said interface device and said battery are disconnected in each of said plurality of interface devices;
- controlling the charging in compliance with a priority order of said plurality of interface devices so that a target demand amount set in advance is not exceeded;
- calculating an amount of excess or insufficient power needed to charge a battery on a basis of electricity energy that is obtained by adding the electricity energy needed to charge a battery by said interface device, which is performing charging at a present time, to the electricity energy needed to charge a battery by said interface device, which is estimated to be carrying out charging of a battery after an elapse of a predetermined time;
- and
- correcting the target demand amount on a basis of the calculated amount of excess or deficient power.
Dependencies are inferred from the claim text.