CHARGING CONTROL DEVICE, CHARGING CONTROL METHOD, AND PROGRAM

• US 20130293195A1
• Filed: 01/18/2012
• Published: 11/07/2013
• Est. Priority Date: 01/21/2011
• Status: Abandoned Application

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Ishii, Kenichi
• Application Number:
  US13/980,209
• Publication Number:
  US 20130293195A1
• Time in Patent Office: Days
• US Class Current: 320/109
• CPC Class Codes: B60L 2250/14 by input of vehicle departure time
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 53/64 Optimising energy costs, e.g. responding to electricity rates
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 53/665 Methods related to measuring, billing or payment
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: H01M 10/441 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/0019 using switched or multiplexed charge circuits
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 10/126 : the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A charging control device 10 that controls charging of a plurality of electric automobiles 208, 209, 210 includes: a charging determination unit 305 that determines whether or not a state of charge of the electric automobile 208, 209, 210 connected via a contactor 202, 203, 204 satisfies a predetermined condition, determines that the electric automobile is to be charged when the condition is satisfied, and determines that charging of the electric automobile is to be interrupted in order to charge another electric automobile when the condition is not satisfied; and a contactor control unit 302 that controls the contactor 202, 203, 204 on the basis of the determination of the charging determination unit 305.

Claims

1. A charging control device that controls charging of a plurality of electric automobiles, comprising:

a charging determination unit that determines whether or not a state of charge of an electric automobile connected via a contactor satisfies a predetermined condition, determines that the electric automobile is to be charged when the condition is satisfied, and determines that charging of the electric automobile is to be interrupted in order to charge another electric automobile when the condition is not satisfied; and

a contactor control unit that controls the contactor on the basis of the determination of the charging determination unit.

2. The charging control device according to claim 1, wherein the state of charge is a remaining charge of a rechargeable battery of the electric automobile, and

the condition is satisfied when the remaining charge is equal to or smaller than a predetermined threshold.

3. The charging control device according to claim 1, wherein the state of charge is a current value during charging of the electric automobile, and

the condition is satisfied when the current value is equal to or larger than a predetermined threshold.

4. The charging control device according to claim 1, wherein the state of charge is a voltage value during charging of the electric automobile, and

the condition is satisfied when the voltage value is equal to or smaller than a predetermined threshold.

5. A charging control method for controlling charging of a plurality of electric automobiles, comprising the steps of:

determining whether or not a state of charge of an electric automobile connected via a contactor satisfies a predetermined condition, determining that the electric automobile is to be charged when the condition is satisfied, and determining that charging of the electric automobile is to be interrupted in order to charge another electric automobile when the condition is not satisfied; and

controlling the contactor on the basis of the determination.

6. A program that causes a computer to function as a charging control device that controls charging of a plurality of electric automobiles, the program causing the computer to function as:

a charging determination unit that determines whether or not a state of charge of an electric automobile connected via a contactor satisfies a predetermined condition, determines that the electric automobile is to be charged when the condition is satisfied, and determines that charging of the electric automobile is to be interrupted in order to charge another electric automobile when the condition is not satisfied; and

a contactor control unit that controls the contactor on the basis of the determination of the charging determination unit.