Automatic and Dynamic Home Electricity Load Balancing for the Purpose of EV Charging

• US 20120319649A1
• Filed: 06/10/2012
• Published: 12/20/2012
• Est. Priority Date: 03/13/2010
• Status: Active Grant

• Current Assignee: Chargepoint, Inc.
• Original Assignee: TurboPatent Corp.
• Inventors: Billmaier, James A.
• Granted Patent: US 8,723,478 B2
• Time in Patent Office: Days
• US Class Current: 320/109
• CPC Class Codes: B60L 2240/72 Charging station selection relying on external data
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• 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 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 3/02 using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of ac power and of dc power
• 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 30/14 Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

“A charging station for electric vehicles receives customer bids on a charging time interval allotment, compares the customer bids, and supplies electric current from the charging station to a plurality of electric vehicles allocated to each electric vehicle according to the bids.”

Claims

1-11. -11. (canceled)

12. A charging station for electric vehicles, comprising:

a first input receive a plurality of customer bids on a charging time interval allotment;

logic to compare the customer bids;

a plurality of outputs to supply electric current from the charging station to a plurality of electric vehicles; and

logic to allocate current to each electric vehicle coupled to the plurality of outputs according to the bids.

13. The charging station of claim 12, further comprising:

logic to receive an electricity sell-back rate from at least one of the electric vehicles; and

a second input to draw current from a battery of the at least one electric vehicle, if the electricity sell-back rate is lower than a rate for charging determined from one of the customer bids.

14. The charging station of claim 12, further comprising:

a second input to receive current from at least one of the plurality of electric vehicles; and

logic to allocate current to at least one of the plurality of electric vehicles, the allocated current including current received by the charging station from the at least one electric vehicle.