CHARGING CONTROL SYSTEM AND CHARGING CONTROL METHOD

• US 20130057211A1
• Filed: 02/29/2012
• Published: 03/07/2013
• Est. Priority Date: 09/01/2011
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: KUDO, Koji, KURIBAYASHI, Ryosuke, YANO, Hitoshi
• Granted Patent: US 9,168,838 B2
• Time in Patent Office: Days
• US Class Current: 320/109
• CPC Class Codes: B60L 2240/70 Interactions with external data bases, e.g. traffic centres
• CPC Class Codes: B60L 2240/80 Time limits
• CPC Class Codes: B60L 2260/52 drive range estimation, e.g. of estimation of available travel distance
• CPC Class Codes: B60L 2260/54 Energy consumption estimation
• CPC Class Codes: B60L 2260/58 Departure time prediction
• CPC Class Codes: B60L 53/11 DC charging controlled by the charging station, e.g. mode 4
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/53 Batteries
• 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 53/68 Off-site monitoring or control, e.g. remote control
• CPC Class Codes: B60L 55/00 Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 3/322 the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0071 with a programmable schedule
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• 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 10/72 : Electric energy management in electromobility
• 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 30/12 : Remote or cooperative charging
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

Charging control section 17 controls charging such that when the charging of an EV satisfies a predetermined condition, the EV is charged with electricity from a stationary energy storage and when the charging of the EV does not satisfy the predetermined condition, the EV is charged with electricity from an electric power grid and information communication grid 1 and the stationary energy storage is charged from electric power grid and information communication grid 1 based on the state of stored electricity of the stationary energy storage. Charging scheduling section 15 performs scheduling for the EV based on an electric power demand that cause electric power grid and information communication grid 1 to charge the EV with electricity, the electric power demand including electric power demand created by charging performed under the control of charging control section 17.

Claims

1. A charging control system that controls charging or a vehicle that runs on electricity, comprising:

at least one stationary rechargeable means;

charging means that charges said vehicle or said stationary rechargeable means with electricity;

detection means that detects states of charge of said vehicle and said stationary rechargeable means;

charging scheduling means that performs scheduling in which said charging means charges said vehicle based on an electric power demand that cause said charging means to charge said vehicle with electricity; and

charging control means that controls said charging such that when said charging of said vehicle satisfies a predetermined condition, said vehicle is charged with electricity from said stationary rechargeable means and when the charging of said vehicle does not satisfy the predetermined condition, said vehicle is charged with electricity by said charging means and said stationary rechargeable means is charged with electricity by said charging means based on the state of stored electricity of said stationary rechargeable means detected by said detection means,

wherein said charging scheduling means performs charging scheduling for said charging means that charges said vehicle and said stationary rechargeable means with electricity also based on an electric power demand created under the control of said charging control means.

2. The charging control system according to claim 1,

wherein said charging control means controls charging such that when the charging for said vehicle by said charging means is not ensured for a predetermined time or longer, said vehicle is charged with electricity from said stationary rechargeable means.

3. The charging control system according to claim I,

wherein said charging control means controls charging such that if a time zone, in which the number of vehicles charged with electricity by said charging means is equal to or smaller than a predetermined number, occurs, said vehicles are charged with electricity from said stationary rechargeable means in other than the time zone and said stationary rechargeable means is charged by said charging means in the time zone in which the number of vehicles charged with electricity is equal or smaller than the predetermined number.

4. A charging control method for a charging control system, including:

at least one stationary rechargeable means; and

charging means that charges a vehicle that runs on electricity, comprising;

a charging control step that controls charging such that when said charging of said vehicle satisfies a predetermined condition, said vehicle is charged with electricity from said stationary rechargeable means and when the charging of said vehicle does not satisfy the predetermined condition, said vehicle is charged with electricity by said charging means and said stationary rechargeable means is charged with electricity by said charging means based on the state of stored electricity of said stationary rechargeable means; and

a charging scheduling step that performs charging scheduling for said charging means that charges said vehicle with electricity also based on an electric power demand created by said charging means that charges said vehicle with electricity, said electric power demand including an electric power demand created by charging performed under the control of said charging control step.

5. The charging control method according to claim 4,

wherein said charging control step controls charging such that when the charging of said vehicle by said charging means is not ensured for a predetermined time or longer, said vehicle is charged with electricity from said stationary rechargeable means.

6. The charging control method according to claim 4,

wherein said charging control step controls charging such that if a time zone, in which the number of vehicles charged with electricity by said charging means is equal to or smaller than a predetermined number, occurs, said vehicles are charged with electricity from said stationary rechargeable means in other than the time zone and said stationary rechargeable means is charged by said charging means in the time zone in which the number of vehicles charged with electricity is equal or smaller than the predetermined number.