CHARGING SYSTEM, SERVER DEVICE, AND PROGRAM FOR SERVER DEVICE

• US 20140191722A1
• Filed: 03/11/2014
• Published: 07/10/2014
• Est. Priority Date: 09/20/2011
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: USUKI, Izumi, OGAWA, Takeshi
• Granted Patent: US 9,387,772 B2
• Time in Patent Office: Days
• US Class Current: 320/109
• CPC Class Codes: B60L 2240/622 by satellite navigation
• 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 2250/10 by alarm
• CPC Class Codes: B60L 2250/14 by input of vehicle departure time
• CPC Class Codes: B60L 2260/46 by self learning
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 53/67 Controlling two or more charging stations
• CPC Class Codes: B60L 53/68 Off-site monitoring or control, e.g. remote control
• CPC Class Codes: G06Q 10/04 Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem" market predictions or forecasting for commercial activities G06Q30/0202
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• 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 3/003 Load forecast, e.g. methods or systems for forecasting future load demand
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• 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 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: 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]

Abstract

A charging system includes central server capable of communicating with electric vehicles, and charging stations. Central server receives travel information on the electric vehicles and remaining charge information on rechargeable batteries from the electric vehicles, forecasts demanded power in a predetermined area, and issues a charge schedule change request to charge control devices included in the predetermined area. Charging stations change charge schedules for the rechargeable batteries mounted on the electric vehicles in accordance with the charge schedule change request.

Claims

1. A charging system comprising:

a server device capable of communicating with an electric vehicle driven by electric power stored in a rechargeable battery; and

a charge control device capable of communicating with the server device and configured to control charging of the rechargeable battery,

wherein the server device comprises;

a communication unit configured to receive travel information on the electric vehicle and remaining charge information on the rechargeable battery of the electric vehicle from the electric vehicle;

a demand forecast unit configured to forecast demanded power in a predetermined area based on the travel information and the remaining charge information received by the communication unit; and

a schedule management unit configured to issue a charge schedule change request to the charge control device included in the predetermined area based on the demanded power in the predetermined area forecasted by the demand forecast unit, and

the charge control device changes a charge schedule for the rechargeable battery mounted on the electric vehicle in accordance with the charge schedule change request issued by the server device.

2. The charging system according to claim 1,

wherein the schedule management unit obtains a power consumption in the predetermined area, and compares the obtained power consumption and the demanded power in the predetermined area forecasted by the demand forecast unit to calculate a degree of match,

in a case where the degree of match calculated by the schedule management unit is lower than a predetermined value, the demand forecast unit re-forecasts demanded power in the predetermined area based on the travel information and the remaining charge information, and

the schedule management unit issues a charge schedule change request to the charge control device included in the predetermined area based on the demanded power as a re-forecast result of the demand forecast unit.

3. The charging system according to claim 2, wherein the schedule management unit learns a process of generating the charge schedule change request in the predetermined area based on the degree of match.

4. A server device capable of communicating with an electric vehicle driven by electric power stored in a rechargeable battery and a charge control device configured to control charging of the rechargeable battery mounted on the electric vehicle, the server device comprising:

a communication unit configured to receive travel information on the electric vehicle and remaining charge information on the rechargeable battery of the electric vehicle from the electric vehicle;

a demand forecast unit configured to forecast demanded power in a predetermined area based on the travel information and the remaining charge information received by the communication unit; and

a schedule management unit configured to issue a charge schedule change request to the charge control device included in the predetermined area based on the demanded power in the predetermined area forecasted by the demand forecast unit.

6. The server device according to claim 4,

wherein the schedule management unit obtains a power consumption in the predetermined area, and compares the obtained power consumption and the demanded power in the predetermined area forecasted by the demand forecast unit to calculate a degree of match,

in a case where the degree of match calculated by the schedule management unit is lower than a predetermined value, the demand forecast unit re-forecasts demanded power in the predetermined area based on the travel information and the remaining charge information, and

the schedule management unit issues a charge schedule change request to the charge control device included in the predetermined area based on the demanded power as a re-forecast result of the demand forecast unit.

7. The server device according to claim 6, wherein the schedule management unit learns a process of generating the charge schedule change request in the predetermined area based on the degree of match.

5. A program for a server device capable of communicating with an electric vehicle driven by electric power stored in a rechargeable battery and a charge control device configured to control charging of the rechargeable battery mounted on the electric vehicle,

the program causing a computer of the server device to function as:

a communication unit configured to receive travel information on the electric vehicle and remaining charge information on the rechargeable battery of the electric vehicle from the electric vehicle;

a demand forecast unit configured to forecast demanded power in a predetermined area including a destination contained in the travel information based on the travel information and the remaining charge information received by the communication unit; and

a schedule management unit configured to issue a charge schedule change request to the charge control device included in the predetermined area based on the demanded power in the predetermined area forecasted by the demand forecast unit.

8. The program for server device according to claim 5,

wherein the schedule management unit obtains a power consumption in the predetermined area, and compares the obtained power consumption and the demanded power in the predetermined area forecasted by the demand forecast unit to calculate a degree of match,

in a case where the degree of match calculated by the schedule management unit is lower than a predetermined value, the demand forecast unit re-forecasts demanded power in the predetermined area based on the travel information and the remaining charge information, and

the schedule management unit issues a charge schedule change request to the charge control device included in the predetermined area based on the demanded power as a re-forecast result of the demand forecast unit.

9. The program for server device according to claim 8, wherein the schedule management unit learns a process of generating the charge schedule change request in the predetermined area based on the degree of match.