Sharing charging system

• US 8,558,505 B2
• Filed: 08/11/2011
• Issued: 10/15/2013
• Est. Priority Date: 09/03/2010
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Toyota Jidoshokki
• Original Assignee: Kabushiki Kaisha Toyota Jidoshokki
• Inventors: Iwata, Yasuki
• Primary Examiner(s): Dunn, Drew A
• Assistant Examiner(s): PELTON, NATHANIEL R
• Application Number:
  US13/207,618
• Publication Number:
  US 20120056582A1
• Time in Patent Office: 796 Days
• Field of Search: 320/109, 180/65.1
• US Class Current: 320/109
• CPC Class Codes: B60L 2240/72 Charging station selection relying on external data
• CPC Class Codes: B60L 2250/12 by confirmation, e.g. of the input
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/63 in response to network capacity
• 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 53/67 Controlling two or more charging stations
• CPC Class Codes: H02J 2310/60 Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H02J 7/0024 Parallel/serial switching of connection of batteries to charge or load circuit
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• 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 20/222 : Demand response systems, e.g. load shedding, peak shaving
• 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

When it is determined that a charge controllable vehicle and a charge uncontrollable vehicle coexist are connected to a plurality of charging stations, available power X is distributed and supplied to the charge controllable vehicle or the charge uncontrollable vehicle so that total power derived from the charge controllable vehicle and the charge uncontrollable vehicle does not exceed the available power X of a power supply unit, and the available power X is distributed as time division and supplied to the charge controllable vehicle and the charge uncontrollable vehicle.

Claims

1. A sharing charging system having a plurality of charging stations and a power receiving facility for supplying power to each of the plurality of charging stations, wherein:

the power receiving facility comprises;

a power supply unit to supply power to each of the plurality of charging stations; and

a charge amount control unit to obtain a possible power supply value per vehicle based on a total number of vehicles connected to the plurality of charging stations and available power of the power supply unit when connection information indicating that a vehicle is connected is transmitted from any of the plurality of charging station, and to transmit the possible power supply value to each of the plurality of charging stations;

the charging station comprises;

a communication unit to transmit the possible power supply value transmitted from the power receiving facility to the vehicle connected to the charging station;

a power measuring unit to measure power derived from the power supply unit to the vehicle connected to the charging station; and

a control unit to determine based on the power measured by the power measuring unit and the possible power supply value whether the vehicle connected to the charging station is a charge controllable vehicle which derives the power based on the possible power supply value from the power supply unit or a charge uncontrollable vehicle which derives the power not based on the possible power supply value from the power supply unit;

when the charge amount control unit determines based on a determination result of the control unit of the plurality of charging stations that only the charge controllable vehicle is connected, the charge amount control unit distributes and supplies the available power of the power supply unit to each of the charge controllable vehicles; and

when the charge amount control unit determines based on a determination result of the control unit of the plurality of charging stations that the charge controllable vehicle and the charge uncontrollable vehicle are connected, the charge amount control unit distributes and supplies the available power of the power supply unit to the charge controllable vehicle or the charge uncontrollable vehicle so that total power derived from the charge controllable vehicle and the charge uncontrollable vehicle does not exceed the available power of the power supply unit, and distributes as time division and supplies the available power of the power supply unit to the charge controllable vehicle and the charge uncontrollable vehicle.

2. The sharing charging system according to claim 1, wherein

when the charge amount control unit determines based on the determination result of the control unit of each of the charging stations that the plurality of charge controllable vehicles and the plurality of charge uncontrollable vehicles are connected to the plurality of charging stations, the charge amount control unit repeatedly and alternately distributes and supplies the available power of the power supply unit to the plurality of charge controllable vehicles and distributes and supplies the available power of the power supply unit to the plurality of charge uncontrollable vehicles.

3. The sharing charging system according to claim 1, wherein

when the charge amount control unit determines based on the determination result of the control unit of each of the charging stations that the plurality of charge controllable vehicles and the plurality of charge uncontrollable vehicles are connected to the plurality of charging stations, the charge amount control unit sequentially supplies power to each of the plurality of charge uncontrollable vehicles and distributes and supplies the remaining power after supplying the power to the charge uncontrollable vehicles in the available power of the power supply unit to the plurality of charge controllable vehicles.