DEVICE FOR DETERMINING A PROPERTY OF A BATTERY AND METHOD FOR OPERATING SUCH A DEVICE

• US 20150084601A1
• Filed: 04/19/2013
• Published: 03/26/2015
• Est. Priority Date: 04/19/2012
• Status: Abandoned Application

• Current Assignee: Commissariat a L'Energie Atomique (French Alternative Energies and Atomic Energy Commission)
• Original Assignee: Commissariat a L'Energie Atomique (French Alternative Energies and Atomic Energy Commission)
• Inventors: Ha, Duy Long, Hing, Sothun Eric
• Application Number:
  US14/394,857
• Publication Number:
  US 20150084601A1
• Time in Patent Office: Days
• US Class Current: 320/132
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/547 Voltage
• CPC Class Codes: B60L 2240/549 Current
• CPC Class Codes: B60L 2240/80 Time limits
• 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 53/11 DC charging controlled by the charging station, e.g. mode 4
• 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 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: B60L 58/16 responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
• CPC Class Codes: G01R 31/382 Arrangements for monitoring battery or accumulator variables, e.g. SoC
• CPC Class Codes: G01R 31/3832 without measurement of battery voltage
• CPC Class Codes: G01R 31/392 Determining battery ageing or deterioration, e.g. state of health
• 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

Method of operation of a device for determining a feature of a battery from among the state of charge of the battery, the state of health of the battery and the capacity of the battery, the device comprising a man-machine interface, the method comprising receiving a request to determine an actual value of the feature of a battery, determining, by interrogating a user via the man-machine interface, the next date at which a consuming device will need energy from the battery, verifying that it is possible to determine the actual value of the feature of the battery by the next date, and if such is the case, determining the actual value of the feature of the battery by carrying out a phase of charging and/or discharging of the battery.

Claims

1. Method of operation of a device for determining a feature of a battery from among the state of charge of the battery, the state of health of the battery and the capacity of the battery, the device comprising a man-machine interface, the method comprising the following steps:

Receiving a request to determine an actual value of the feature of a battery,

Determining, by interrogating a user via the man-machine interface, the next date at which a consuming device will need energy from the battery,

Verifying that it is possible to determine the actual value of the feature of the battery by the next date,

If such is the case, determining the actual value of the feature of the battery by carrying out a phase of charging and/or discharging of the battery.

2. Method of operation according to claim 1, which comprises the following step:

Using the previously determined actual value for the said feature of the state of charge of the battery, to reinitialize or adjust a procedure for estimating, in particular for estimating the value of the state of charge of the battery.

3. Method of operation according to claim 1, wherein the feature is the state of health of the battery or the capacity of the battery, wherein at least one value of the said feature is saved in a memory and wherein, after determination of the actual value of the feature, the actual value is recorded in the memory.

4. Method of operation according to claim 1, wherein the step of determining the actual value of the feature of the battery comprises a phase of discharging the battery, and then a phase of charging of the battery.

5. Method according to claim 1, wherein the step of determining the actual value of the feature of the battery comprises a phase of complete charging of the battery.

6. Method according to claim 5, wherein the intensity of the battery charging current is determined throughout the battery charging phase and this intensity is used to determine the level of the charge of the battery at the end of the charging phase.

7. Method according to claim 1, wherein the step of determining the actual value of the feature of the battery comprises a phase of complete discharging of the battery.

8. Method according to claim 1, wherein the intensity of the battery discharge current is determined throughout the battery discharging phase and the intensity is used to determine the level of the charge of the battery at the end of the discharging phase.

9. Method according to claim 1, wherein the step of receiving a request to determine an actual value of the feature of the battery comprises the detection of a deadline of a time delay triggered during a previous determination step and/or a detection of a wish for determination expressed by the user of the device.

10. Method according to claim 1, wherein the step of verifying that it is possible to determine the actual value of the feature of the battery by the next date at which a consuming device will need energy from the battery comprises a validation confirming that the device is not forecast to use energy from the battery for a duration at least equal to the duration of the step of determining the actual value of the feature of the battery.

11. Method according to claim 1, wherein the energy arising from the battery during the discharging of the battery is:

used to recharge at least one other battery; and

/or

used in a residence to which the device is electrically connected; and

/or

fed into an electrical network.

12. Data recording medium readable by a calculator on which is recorded a computer program comprising software means for implementing the steps of the method according to claim 1.

13. Device for determining a feature of a battery from among the state of charge of the battery, the state of health of the battery and the capacity of the battery, the device comprising:

a man-machine interface, and

hardware and/or software elements for implementing the steps of the method according to claim 1.

14. Device according to claim 13, wherein the hardware and/or software elements comprise:

An element for receiving a request to determine an actual value of the feature of a battery,

An element for determining, by interrogating a user, the next date at which a consuming device will need energy from the battery,

An element for verifying that it is possible to determine the actual value of the feature of the battery by the next date,

An element for determining the actual value of the feature of the battery by carrying out a phase of charging and/or discharging of the battery.

15. System comprising a device according to claim 13, a battery and a consuming device.

16. System comprising a device according to claim 14, a battery and a consuming device.

17. Automotive vehicle comprising a device according to claim 13, a battery and a consuming device.

18. Automotive vehicle comprising a device according to claim 14, a battery and a consuming device.

19. Method according to claim 2, wherein the procedure for estimating the value of the state of charge of the battery is a procedure for estimating in real time the value of the state of charge of the battery.

20. Method according to claim 11, wherein the energy arising from the battery during the discharging of the battery is fed into the commercial electrical network.