Dynamic grid loading using plug-in electrified vehicles

• US 9,630,518 B2
• Filed: 06/09/2015
• Issued: 04/25/2017
• Est. Priority Date: 06/09/2015
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Gibeau, John Paul
• Primary Examiner(s): BUTLER, RODNEY ALLEN
• Application Number:
  US14/734,722
• Publication Number:
  US 20160362013A1
• Time in Patent Office: 686 Days
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 1/04 fed by the power supply line
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/547 Voltage
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 58/13 Maintaining the SoC within a determined range
• CPC Class Codes: H02J 13/00016 using a wired telecommunication network or a data transmission bus
• CPC Class Codes: H02J 13/00028 involving the use of Internet protocols
• CPC Class Codes: H02J 13/00032 Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for circuits specially adapted for remote switching of lighting via the power line H05B47/185
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 2310/58 The condition being electrical
• 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 3/144 Demand-response operation of the power transmission or distribution network
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• 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 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]
• CPC Class Codes: Y04S 20/222 : Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 40/124 : using wired telecommunication networks or data transmission busses
• CPC Class Codes: Y10S 903/907 : Electricity storage, e.g. battery, capacitor

Abstract

A vehicle includes a traction battery configured to be coupled to a power network that is controlled by a grid management system. The vehicle further includes a controller. The controller charges the traction battery and activates vehicle loads based on a request from the grid management system to consume an amount of power from the power network. When the traction battery is fully charged, one or more vehicle loads are activated to consume the amount of power. When a charge power limit of the traction battery is greater than or equal to the amount of power requested, the traction battery is charged to consume the amount of power requested.

Claims

1. A vehicle comprising:

a traction battery configured to be coupled to a power network that is controlled by a grid management system; and

a controller programmed to, in response to a request from the grid management system to consume an amount of power from the power network that is greater than a charge power limit of the traction battery, charge the traction battery and activate a vehicle load to consume the amount of power.

2. The vehicle of claim 1 wherein the controller is further programmed to charge the traction battery at the charge power limit.

3. The vehicle of claim 1 wherein the controller is further programmed to activate the vehicle load at a power level that is based on a difference between the amount of power and the charge power limit.

4. The vehicle of claim 1 wherein the controller is further programmed to, in response to the request from the grid management system to consume the amount of power from the power network that is less than the charge power limit of the traction battery, charge the traction battery at the amount of power.

5. The vehicle of claim 1 wherein the vehicle load is one or more of a heating element, an air conditioning compressor, an auxiliary battery charging system, and a fan.

6. The vehicle of claim 1 wherein the controller is further programmed to, in response to the charge power limit being less than a predetermined threshold indicative of the battery being fully charged, activate the vehicle load to consume the amount of power.

7. A vehicle comprising:

a traction battery configured to be coupled to a power network that is controlled by a grid management system; and

at least one controller programmed to, in response to a request from the grid management system to consume an amount of power from the power network when the traction battery is fully charged, activate at least one vehicle load to consume power from the power network.

8. The vehicle of claim 7 wherein the traction battery is fully charged when a state of charge of the traction battery is greater than a predetermined state of charge.

9. The vehicle of claim 7 wherein the traction battery is fully charged when a charge power limit of the traction battery is less than a predetermined power.

10. The vehicle of claim 7 wherein the at least one controller is further programmed to select the at least one vehicle load based on ambient temperature.

11. The vehicle of claim 7 wherein the at least one vehicle load is a first vehicle load having a power consumption capacity greater than or equal to the amount of power that is activated to consume the amount of power.

12. The vehicle of claim 7 wherein the at least one vehicle load includes a first vehicle load, having a power consumption capacity less than the amount of power, that is activated to consume the power consumption capacity and at least a second vehicle load activated at a power level based on a difference between the amount of power and the power consumption capacity of the first vehicle load.

13. The vehicle of claim 7 wherein the at least one controller is further programmed to, in response to the request from the grid management system when a charge power limit of the traction battery is greater than a predetermined value, charge the traction battery.

14. The vehicle of claim 13 wherein the at least one controller is further programmed to, in response to the charge power limit being greater than or equal to the amount of power, charge the traction battery at the amount of power.

15. The vehicle of claim 13 wherein the at least one controller is further programmed to, in response to the charge power limit being less than the amount of power, charge the traction battery at the charge power limit.

16. The vehicle of claim 15 wherein the at least one controller is further programmed to activate the at least on vehicle load based on a difference between the amount of power and the charge power limit.

17. A method comprising:

coupling a traction battery of a vehicle to a power network that is controlled by a grid management system;

receiving, by a controller, a request from the grid management system to consume an amount of power from the power network; and

activating, by the controller, a vehicle load in response to the amount of power being greater than a charge power limit of the traction battery.

18. The method of claim 17 further comprising charging the traction battery at the charge power limit.

19. The method of claim 17 wherein a power consumed by the vehicle load is based on a difference between the amount of power and the charge power limit.

20. The method of claim 17 further comprising charging the traction battery with the amount of power in response to the amount of power being less than or equal to the charge power limit.