Method and system for an energy storage system

• US 10,076,970 B2
• Filed: 11/28/2016
• Issued: 09/18/2018
• Est. Priority Date: 11/30/2015
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Khosravi, Maziar, Huth, Florian, van Bebber, David
• Primary Examiner(s): BUTLER, RODNEY ALLEN
• Application Number:
  US15/362,357
• Publication Number:
  US 20170151884A1
• Time in Patent Office: 659 Days
• CPC Class Codes: B60K 6/20 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/445 Temperature
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 2270/10 Emission reduction
• CPC Class Codes: B60L 50/15 with additional electric power supply with capacitors charged by engine-driven generators B60L50/40; with batteries charged by engine-driven generators B60L50/61
• CPC Class Codes: B60L 53/00 Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
• CPC Class Codes: B60L 53/56 Mechanical storage means, e.g. fly wheels
• CPC Class Codes: B60L 53/64 Optimising energy costs, e.g. responding to electricity rates
• 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: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: G01C 21/3469 Fuel consumption; Energy use; Emission aspects
• 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]

Abstract

Methods and systems are provided for a network in communication with one or more vehicles. In one example, a method may include transferring energy back and forth between the one or more vehicles and the network.

Claims

1. A method for operating a vehicle comprising an internal combustion engine and a controller, comprising:

operating the vehicle via the controller in a driving state according to instructions of a driver and/or an assistance system,

ascertaining a quantity of electrical energy stored in a store of the vehicle via a store-monitoring device,

comparing the ascertained quantity of the stored electrical energy with a pre-definable limit value via a control unit, and

feeding a selectable quantity of electrical energy from the vehicle into an external energy-uptake device having an energy-transfer device in response to the quantity of the electrical energy stored in the vehicle exceeding the pre-definable limit value.

2. The method of claim 1, further comprising ascertaining a quantity of electrical energy that was consumed via a usage meter, and adjusting a quantity of electrical energy fed into the external energy-uptake device via the control unit with consideration for the ascertained quantity of consumed electrical energy.

3. The method of claim 1, wherein the store-monitoring device ascertains the quantity of energy stored in further stores of the vehicle, and the quantity of stored energy is taken into account by the control unit.

4. The method as claimed in claim 3, further comprising detecting a driving state of the vehicle and generating corresponding driving-state signals using a driving-state detection device, and feeding the driving-state signals to the control unit which takes the driving-state signals into account when changing the pre-definable value and the selectable quantity.

5. The method of claim 1, wherein the quantity of consumed electrical energy and the driving state with respect to a pre-definable time are tracked.

6. The method of claim 1, further comprising detecting the instantaneous position of the vehicle and the planned destination, generating corresponding position and destination signals via a navigation system, and feeding the position and destination signals to the control unit which takes the position and destination signals into account when changing the pre-definable value and the selectable quantity.

7. The method of claim 1, wherein the vehicle is a hybrid further comprising an electric motor, and where the internal combustion engine and electric motor are operated to minimize energy penalties.

8. The method of claim 1, wherein the control unit controls a navigation system in such a way that a route guidance is adjusted as a function of an ascertained quantity of consumed electrical energy and the quantity of energy stored in the store and/or energy stored in further stores.

9. A system for a hybrid vehicle comprising:

a store-monitoring device for ascertaining the quantity of electrical energy stored in a store of the vehicle which is operated in a driving state according to instructions from a driver and/or an assistance system;

energy-transfer device coupled in the vehicle for feeding a selectable quantity of electrical energy from the vehicle into an external energy-uptake device, and

a control unit for comparing the ascertained quantity of the stored electrical energy with a pre-definable limit value, where

the control unit stores instructions in non-transitory memory that when executed enable the control unit to operate the energy-transfer device in such a way that, in response to the quantity of electrical energy stored in the vehicle exceeding the pre-definable limit value, the selectable quantity of electrical energy is fed from the vehicle into the external energy-uptake device.

10. The system of claim 9, further comprising a network for supplying hybrid vehicles with electrical energy, comprising a transfer network for transferring electrical energy, a number of energy-uptake devices configured to transfer electrical energy to the hybrid vehicles and a number of energy-exchange devices, and where electrical energy can be exchanged with the vehicles driven by electrical energy.

11. The system of claim 10, wherein the network comprises one or more network stores for electrical energy, where the one or more network stores comprise an energy-converting device which is suitable for carrying out a power-to-gas method or a power-to-fuel method, or is connected to such an energy-converting device for operating an internal combustion engine for transferring energy from the vehicle to the one or more network stores.

12. A method for managing a vehicle with energy storage devices, actuators, and an electronic controller, comprising:

via the electronic controller, adjusting the actuators including flowing electrical energy from a vehicle to an external network comprising a plurality of energy-uptake devices in response to an energy storage device state of charge relative to a threshold state of charge, and flowing electrical energy from the external network into the vehicle in response to the energy storage device state of charge being determined to be insufficient to propel the vehicle to a final destination.

13. The method of claim 12, wherein the vehicle is stopped, or moving when electrical energy is transferred between the vehicle and the network in response to the energy storage device state of charge being equal to the threshold state of charge, wherein the external network is a part of a fixed land-based electrical energy infrastructure, wherein the electrical energy flows into the vehicle via the energy-uptake device to the energy storage device.

14. The method of claim 12, wherein insufficiency is estimated based on one or more of a distance remaining between a current position and the final destination, driver behavior, and activated auxiliary devices.

15. The method of claim 12, wherein the threshold state of charge is equal to a maximum state of charge of the energy storage device and where flowing electrical energy to the network include flowing an energy surplus generated from one or more of recuperative and engine combustion.

16. The method of claim 15, wherein electrical energy flows from the vehicle to the network via operating an internal combustion engine in response to the driver selecting a fuel pricing benefits option and the energy storage device state of charge being greater than the threshold state of charge, and where fuel is consumed and the engine is combusting.

17. The method of claim 16, wherein the fuel pricing benefits option is presented to the driver when a price of a unit of fuel is less than a price of a unit of electrical energy, where the unit of fuel provides an identical energy output to the unit of electrical energy.

18. The method of claim 16, further comprising reimbursing a vehicle operator in response to the engine being operated to supply electrical energy to the network.

19. The method of claim 12, wherein the network directs electrical energy received from the vehicle to one or more different vehicles located in a different location.

20. The method of claim 12, wherein flowing electrical energy between the vehicle and the network occurs during stationary, decelerating, steady-state, and accelerating vehicle operating conditions.