Battery intelligent management method, battery intelligent management apparatus, and battery

Patent metadata

Field	Value
Publication number	US-9812885-B2
Application number	US-201514788068-A
Country	US
Kind code	B2
Filing date	Jun 30, 2015
Priority date	Apr 16, 2014
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

The present invention discloses a battery intelligent management apparatus. A recognizing unit is configured to recognize a specification of a power supply assembly. A storage unit is configured to store management modes of power supply assemblies of various specifications, where the management modes of the power supply assemblies are in one-to-one correspondence with the specifications of the power supply assemblies. A control unit is configured to extract, from the storage unit and according to the specification, recognized by the recognizing unit, of the power supply assembly, a management mode corresponding to the specification of the power supply assembly, and perform charge management on the power supply assembly by using the management mode.

First claim

What is claimed is:

1. A method for battery intelligent management the method comprising:
detecting, by a battery intelligent management apparatus, an accumulated time of power grid disconnection within a preset time, and an accumulated time of a high temperature during which a working temperature of a battery exceeds a preset temperature within a preset time;
recognizing, by the battery intelligent management apparatus, a specification of a power supply assembly of the battery according to the detected accumulated time of power grid disconnection or the accumulated time of the high temperature, wherein the battery intelligent management apparatus stores a plurality of management modes of power supply assemblies of various specifications, wherein the management modes of the power supply assemblies are in one-to-one correspondence with the specifications of the power supply assemblies; and
extracting, by the battery intelligent management apparatus, a management mode corresponding to the recognized specification of the power supply assembly from the battery intelligent management apparatus; and
performing charge management on the power supply assembly using the extracted management mode.

2. The battery intelligent management method according to claim 1 , further comprising:
determining that the specification of the power supply assembly is a B-type float charged battery when the accumulated time of power grid disconnection within the preset time is less than or equal to 10 hours, and the accumulated time of a high temperature during which the working temperature of the battery exceeds the preset temperature within the preset time is also less than or equal to 10 hours;
wherein the management mode extracted by the battery intelligent management apparatus comprises a charge current limiting point that is less than or equal to 0.10 C and a charge voltage that is in a range of 2.20-2.23V/CELL, and wherein charge management is performed on the B-type float charged battery using the management mode.

3. The battery intelligent management method according to claim 1 , further comprising:
determining that the specification of the power supply assembly is an A-type cycle battery when the accumulated time of power grid disconnection within the preset time is in a range that is greater than or equal to 30 hours and the accumulated time of a high temperature during which the working temperature of the battery exceeds the preset temperature within the preset time is in a range of 10-20 hours;
wherein the management mode extracted by the battery intelligent management apparatus comprises a charge current limiting point that is in the range of 0.10-0.15 C and a charge voltage that is in the range 2.23-2.27V/CELL, and wherein charge management is performed on the A-type cycle battery using the management mode.

4. The battery intelligent management method according to claim 1 , further comprising:
determining that the specification of the power supply assembly is a C-type high temperature battery when the accumulated time of power grid disconnection within the preset time is in a range that is greater than or equal to 30 hours and the accumulated time of a high temperature during which the working temperature of the battery exceeds the preset temperature within the preset time is in a range that is greater than or equal to 30 hours;
wherein a management mode extracted by the battery intelligent management apparatus comprises a charge current limiting point is is greater than or equal to 0.15 C and a charge voltage that is in the range of 2.23-2.27V/CELL, and wherein charge management is performed on the C-type high temperature battery using the management mode.

5. The battery intelligent management method according to claim 1 , further comprising:
detecting, by the battery intelligent management apparatus, discharge data in a discharge process of the power supply assembly, wherein the battery intelligent management apparatus further stores a preset-capacity parameter table comprising:
a capacity coefficient in charge;
discharge processes of the power supply assembly: and
alarm protection points of a voltage and a current in the charge and discharge processes of the power supply assembly;

calculating, by the battery intelligent management apparatus, an actual battery capacity of the power supply assembly according to the discharge data and the preset-capacity parameter table;
calculating a health status of the power supply assembly according to the actual battery capacity of the power supply assembly; and
alerting an operator to the health status using an alarm.

6. The battery intelligent management method according to claim 5 , further comprising:
detecting, by the battery intelligent management apparatus, a working ambient temperature of the power supply assembly;
enabling a cooling function when the detected working ambient temperature of the power supply assembly is higher than a preset temperature value; and
enabling a heating function when the detected working ambient temperature of the power supply assembly is lower than the preset temperature value.

7. A battery intelligent management apparatus interconnected with a battery, wherein the battery intelligent management apparatus comprises:
a recognizing unit, configured to:
detect an accumulated time of power grid disconnection within a preset time and an accumulated time of a high temperature during which a working temperature of the battery exceeds a preset temperature within a preset time; and
recognize a specification of a power supply assembly of the battery according to the accumulated time of power grid disconnection or the accumulated time of the high temperature;

a storage unit, configured to store a plurality of management modes of power supply assemblies of various specifications, wherein the management modes of the power supply assemblies are in one-to-one correspondence with the specifications of the power supply assemblies; and
a control unit, configured to extract from the storage unit a management mode corresponding to a recognized specification of the power supply assembly and perform charge management on the power supply assembly using the management mode.

8. The battery intelligent management apparatus according to claim 7 , wherein the recognizing unit is further configured to determine that the specification of the power supply assembly is a B-type float charged battery when the accumulated time of power grid disconnection within the preset time is less than or equal to 10 hours and the accumulated time of a high temperature during which the working temperature of the battery exceeds the preset temperature within the preset time is also less than or equal to 10 hours; and wherein the corresponding management mode comprises a charge current limiting point that is less than or equal to 0.10 C and a charge voltage that is in a range of 2.20-2.23V/CELL.

9. The battery intelligent management apparatus according to claim 7 , wherein the recognizing unit is further configured to determine that the specification of the power supply assembly is an A-type cycle battery when the accumulated time of power grid disconnection within the preset time is greater than or equal to 30 hours, and the accumulated time of a high temperature during which the working temperature of the battery exceeds the preset temperature within the preset time is in a range of 10-20 hours; and wherein the corresponding management mode comprises a charge current limiting point is in a range of 0.10-0.15 C and a charge voltage is is in a range of 2.23-2.27V/CELL.

10. The battery intelligent management apparatus according to claim 7 , wherein the recognizing unit is further co

Assignees

• Huawei Tech Canada Co Ltd
• Huawei Tech Co Ltd

Inventors

• Ma Xiangmin
• Zhu Dingwang

Classifications

• H02J7/84

  Control of state of health [SOH] · CPC title

• H02J7/82

  Control of state of charge [SOC] · CPC title

• H02J7/80

  including monitoring or indicating arrangements · CPC title

• H02J7/50

  acting upon multiple batteries simultaneously or sequentially · CPC title

• H01M10/488

  Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density · CPC title