Battery control device, control method, control system and electric vehicle

• US 10,056,773 B2
• Filed: 10/07/2013
• Issued: 08/21/2018
• Est. Priority Date: 11/30/2012
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Murata Manufacturing Co Limited
• Inventors: Sugeno, Naoyuki, Watanabe, Kohki, Takizawa, Shuichi, Sato, Kenji, Umetsu, Koji
• Primary Examiner(s): Smith, Jelani A
• Assistant Examiner(s): Martinez Borrero, Luis A
• Application Number:
  US14/646,442
• Publication Number:
  US 20150295448A1
• Time in Patent Office: 1,779 Days
• Field of Search: 701 22, 701103, 701 16, 701 14, 701 50, 701 58, 320107, 320110, 320104, 320108, 320101, 320112
• CPC Class Codes: B60L 1/02 to electric heating circuits
• CPC Class Codes: B60L 15/2009 for braking
• CPC Class Codes: B60L 2200/12 Bikes
• CPC Class Codes: B60L 2210/10 DC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2240/441 Speed
• CPC Class Codes: B60L 2240/443 Torque
• 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 2240/662 Temperature
• CPC Class Codes: B60L 2240/80 Time limits
• CPC Class Codes: B60L 2250/10 by alarm
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: B60L 50/62 charged by low-power generators primarily intended to support the batteries, e.g. range extenders
• CPC Class Codes: B60L 50/64 : Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 53/14 : Conductive energy transfer
• CPC Class Codes: B60L 53/65 : involving identification of vehicles or their battery types
• CPC Class Codes: B60L 58/12 : responding to state of charge [SoC]
• CPC Class Codes: B60L 58/15 : Preventing overcharging
• 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: B60L 58/21 : having the same nominal voltage
• CPC Class Codes: B60L 58/24 : for controlling the temperature of batteries
• CPC Class Codes: B60L 58/27 : by heating
• CPC Class Codes: B60L 58/32 : for controlling the temperature of fuel cells, e.g. by controlling the electric load
• CPC Class Codes: B60L 7/14 : for vehicles propelled by ac motors
• CPC Class Codes: H01M 10/4207 : for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 10/425 : Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/4257 : Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 10/443 : in response to temperature
• CPC Class Codes: H01M 2010/4271 : Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H01M 2220/20 : Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 2310/48 : for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/00 : Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0016 : using shunting, discharge or bypass circuits
• CPC Class Codes: H02J 7/0047 : with monitoring or indicating devices or circuits
• CPC Class Codes: H02J 7/0048 : Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/007184 : in response to battery voltage gradient
• CPC Class Codes: H02J 7/007194 : of the battery
• CPC Class Codes: H02J 7/35 : with light sensitive cells
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02T 10/62 : Hybrid vehicles
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility
• 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: Y02T 90/40 : Application of hydrogen technology to transportation, e.g. using fuel cells
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A battery package including a power storage portion; and a control device, where the control device determines if a first temperature of the power storage portion is higher than a predetermined temperature, and if the first temperature is higher than the predetermined temperature, discharges the power storage portion at a first discharge rate.

Claims

1. A battery package, comprising:

a battery; and

a central processing unit (CPU) configured to;

determine that an integrated recharging time of the battery, at temperatures lower than a threshold temperature, exceeds a threshold;

set a recovery mode based on the determination that the integrated recharging time of the battery exceeds the threshold;

determine a first temperature of the battery in the set recovery mode;

control discharge of the battery at a first discharge rate in the set recovery mode, wherein the discharge is controlled based on the first temperature of the battery that is higher than the threshold temperature;

determine a second temperature of the battery;

control a heating operation to heat the battery for a determined time period, wherein the heating operation is controlled based on the second temperature that is lower than the threshold temperature;

determine a third temperature of the heated battery; and

control the discharge of the battery at a second discharge rate, based on the third temperature of the heated battery that is higher than the threshold temperature.

2. The battery package of claim 1,

wherein the CPU is further configured to control deterioration of the battery based on a detection of the deterioration of the battery and the recovery mode.

3. The battery package of claim 2,

wherein a first capacity of the battery package is within 500 mAh of a second capacity of the battery package in a sequential set of 250-300 cycles, based on the battery package at the temperatures that is below −

10 degrees Celsius for a sequential set of 0-300 cycles,

wherein the first capacity corresponds to a capacity of the battery package after the recovery mode and the second capacity corresponds to the capacity of the battery package before the recovery mode,

wherein the sequential set of 0-300 cycles includes the sequential set of 250-300 cycles, and

wherein each of the sequential set of 0-300 cycles comprises recharge of the battery and the discharge of the battery.

4. The battery package of claim 1, wherein the first discharge rate is a fixed rate.

5. The battery package of claim 1, wherein the first discharge rate is lower than 0.2C.

6. The battery package of claim 1, wherein the first discharge rate is between 0.2C and 0.1C.

7. The battery package of claim 1, wherein the first discharge rate is 0.1C.

8. The battery package of claim 1, wherein the CPU is further configured to control the discharge of the battery at a third discharge rate before the battery is heated.

9. The battery package of claim 8, wherein the third discharge rate is same as the first discharge rate.

10. The battery package of claim 8, wherein the third discharge rate is different from the first discharge rate.

11. The battery package of claim 8, wherein the first discharge rate is lower than 0.2C.

12. The battery package of claim 8, wherein the first discharge rate is 0.1C.

13. The battery package of claim 1, wherein the battery package further comprises a plurality of batteries, and the plurality of batteries include the battery.

14. The battery package of claim 13, wherein the CPU is further configured to:

determine an initial temperature of at least one battery of the plurality of batteries, wherein the initial temperature of the at least one battery is higher than the threshold temperature; and

control the discharge of the at least one battery of the plurality of batteries at a third discharge rate.

15. The battery package of claim 14, wherein the CPU is further configured to control the discharge of the plurality of batteries based on at least two different discharge rates for at least two different batteries of the plurality of batteries.

16. The battery package of claim 1, wherein the battery is configured to power an electronic device.

17. The battery package of claim 16, wherein the electronic device is a vehicle.

21. The battery package of claim 1, wherein based on one of the first temperature, the second temperature or the third temperature of the battery, the CPU is further configured to one of:

control recharge of the battery at a first recharge rate;

or

control the recharge of the battery at a second recharge rate that is lower than the first recharge rate.

22. The battery package of claim 21, wherein the CPU is further configured to one of:

control the recharge of the battery at the second recharge rate based on the first temperature of the battery that is between an initial temperature and a secondary temperature;

or

control the recharge of the battery at the first recharge rate based on the first temperature of the battery that is higher than the secondary temperature.

23. The battery package of claim 21, wherein the CPU is further configured to one of:

control the recharge of the battery at the first recharge rate based on the battery that reaches a full recharge voltage;

or

control the recharge of the battery at the second recharge rate based on the battery that reaches a second voltage lower than the full recharge voltage.

24. The battery package of claim 22, wherein the initial temperature is −

10 degrees Celsius, and the secondary temperature is 0 degrees Celsius.

18. A power storage device, comprising:

battery; and

a central processing unit (CPU) configured to;

determine that an integrated recharging time of the battery, at temperatures lower than a threshold temperature, exceeds a threshold;

set a recovery mode based on the determination that the integrated recharging time of the battery exceeds the threshold;

determine a first temperature of the battery in the set recovery mode;

control discharge of the battery at a first discharge rate in the set recovery mode, wherein the discharge is controlled based on the first temperature of the battery that is higher than the threshold temperature;

determine a second temperature of the battery;

control a heating operation to heat the battery for a time period, wherein the heating operation is controlled based on the second temperature that is lower than the threshold temperature;

determine a third temperature of the heated battery; and

control the discharge of the battery at a second discharge rate, based on the third temperature of the heated battery that is higher than the threshold temperature.

19. A method of controlling power storage in a battery package, the method comprising:

determining that an integrated recharging time of a battery, at temperatures lower than a threshold temperature, exceeds a threshold;

setting a recovery mode based on the determination that the integrated recharging time of the battery exceeds the threshold;

determining a first temperature of the battery in the set recovery mode;

controlling discharge of the battery at a first discharge rate in the set recovery mode, wherein the discharge is controlled based on the first temperature of the battery that is higher than the threshold temperature;

determining a second temperature of the battery;

controlling a heating operation to heat the battery for a time period, wherein the heating operation is controlled based on the second temperature that is lower than the threshold temperature;

determining a third temperature of the heated battery; and

controlling the discharge of the battery at a second discharge rate, based on the third temperature of the heated battery that is higher than the threshold temperature.

20. A vehicle comprising a battery package,

wherein the battery package comprises:

a battery; and

a central processing unit (CPU) configured to;

determine that an integrated recharging time of the battery, at temperatures lower than a threshold temperature, exceeds a threshold;

set a recovery mode based on the determination that the integrated recharging time of the battery exceeds the threshold;

determine a first temperature of the battery;

control discharge of the battery at a first discharge rate, based on the first temperature of the battery that is higher than the threshold temperature;

determine a second temperature of the battery;

control a heating operation to heat the battery for a time period, wherein the heating operation is controlled based on the second temperature that is lower than the threshold temperature;

determine a third temperature of the heated battery; and

control the discharge of the battery at a second discharge rate, based on the third temperature of the heated battery that is higher than the threshold temperature.