# US 2015/0084601 A1 · Device for determining a property of a battery and method for operating such a device

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- Number: US 2015/0084601 A1
- Document ID: US20150084601A1
- Status: Published application
- Kind: A1
- Application number: 14/394,857
- Filed: 2013-04-19
- Published: 2015-03-26
- Earliest claimed: 2012-04-19
- Assignees: Commissariat A L'energie Atomique Et Aux Energies Alternatives
- Applicants: Commissariat A L'energie Atomique Et Aux Energies Alternatives
- Inventors: Sothun Eric Hing; Duy Long Ha
- Web page: https://patentgrep.com/patent/US20150084601A1

## CPC

- G01R 31/392: Determining battery ageing or deterioration, e.g. state of health
- 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
- B60L 53/11: {DC charging controlled by the charging station, e.g. mode 4}
- B60L 53/305: {Communication interfaces}
- B60L 53/63: in response to network capacity
- B60L 53/65: involving identification of vehicles or their battery types
- B60L 55/00: Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
- B60L 58/12: responding to state of charge [SoC]
- B60L 58/16: responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
- G01R 31/382: Arrangements for monitoring battery or accumulator variables, e.g. SoC
- B60L 2210/30: AC to DC converters
- B60L 2210/40: DC to AC converters
- B60L 2240/545: Temperature
- B60L 2240/547: Voltage
- B60L 2240/549: Current
- B60L 2240/80: Time limits
- G01R 31/3832: without measurement of battery voltage
- Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 10/72: Electric energy management in electromobility
- Y02T 90/12: Electric charging stations
- Y02T 90/14: Plug-in electric vehicles
- Y02T 90/16: Information or communication technologies improving the operation of electric vehicles
- 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]
- 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]
- Y04S 30/14: Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS

## 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

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1)

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.

### Claim 4 (depends on 1)

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.

### Claim 5 (depends on 1)

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.

### Claim 6 (depends on 5)

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.

### Claim 7 (depends on 1)

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.

### Claim 8 (depends on 1)

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.

### Claim 9 (depends on 1)

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.

### Claim 10 (depends on 1)

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.

### Claim 11 (depends on 1)

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.

### Claim 12 (depends on 1)

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.

### Claim 13 (depends on 1)

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.

### Claim 14 (depends on 13)

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.

### Claim 15 (depends on 13)

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

### Claim 16 (depends on 14)

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

### Claim 17 (depends on 13)

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

### Claim 18 (depends on 14)

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

### Claim 19 (depends on 2)

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.

### Claim 20 (depends on 11)

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.