Distributed battery management system and method of identification distribution using the same

• US 9,222,986 B2
• Filed: 04/23/2014
• Issued: 12/29/2015
• Est. Priority Date: 10/25/2011
• Status: Active Grant

• Current Assignee: BYD Company Limited
• Original Assignee: BYD Company Limited, Shenzhen BYD Auto R&D Company Limited
• Inventors: Shen, Xiaofeng, Liu, Gang, Li, Shuping, Sun, Jiaojiao, Yu, Haijun
• Primary Examiner(s): Cosimano, Edward
• Application Number:
  US14/260,034
• Publication Number:
  US 20140236510A1
• Time in Patent Office: 615 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G01R 29/00 Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
• CPC Class Codes: G01R 31/382 Arrangements for monitoring battery or accumulator variables, e.g. SoC
• CPC Class Codes: G01R 31/396 Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G06F 11/3065 Monitoring arrangements determined by the means or processing involved in reporting the monitored data error or fault reporting or logging G06F11/0766
• CPC Class Codes: G06F 17/40 Data acquisition and logging for input to computer G06F3/00
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass
• CPC Class Codes: H01M 10/4207 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 2220/00 Batteries for particular applications
• CPC Class Codes: H04Q 2209/10 using a centralized architecture
• CPC Class Codes: H04Q 2209/30 using a wired architecture
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A distributed battery management device and a method thereof are provided. The method comprises: receiving, by a battery management control module, a first identification distribution request from a first data acquisition module; activating, by the battery management control module, the first data acquisition module for monitoring one or more batteries; and sending, by the battery management control module, a first identification message corresponding to the first identification distribution request, to the first data acquisition module. The device comprises: a battery management control module; and a first data acquisition module communicatively coupled with the battery management control module, wherein the battery management control module and the first data acquisition module are configured to communicate with each other to identify the data acquisition module.

Claims

1. A method for distributed battery management, the method comprising steps of:

receiving, by a battery management control module, a first identification distribution request from a first data acquisition module configured to acquire at least one parameter of one or more battery cells and to communicate with the battery management control module;

activating, by the battery management control module, the first data acquisition module for monitoring one or more battery cells;

sending, by the battery management control module, a first identification message corresponding to the first identification distribution request, to the first data acquisition module; and

determining, by the first data acquisition module, whether the first data acquisition module is activated;

sending, by the first data acquisition module, a second identification distribution request to the battery management control module if the first data acquisition module is determined to be not activated; and

receiving, by the first data acquisition module, the first identification message, and sending, by the first data acquisition module, an identification distribution reply and a second identification message to the battery management control module if the first data acquisition module is determined to be activated.

2. The method according to claim 1, wherein the first and the second identification messages are identical.

3. The method according to claim 1, further comprising:

counting for an amount of time;

and wherein the activating of the first data acquisition module occurs when the counted time exceeds a predetermined time.

4. The claim according to claim 1, further comprising:

receiving, by the battery management control module, a second identification message;

determining, by the battery management control module, whether the first identification message is identical to the second identification message; and

sending, by the battery management control module, a third identification message corresponding to the first identification distribution request, if the first identification message is determined to be not identical to the second identification message.

5. The method according to claim 1, further comprising:

terminating, by the battery management control module, the identification distribution of the first data acquisition module after receiving the identification distribution reply from the first data acquisition module.

6. The method according to claim 1, further comprising:

determining, by the battery management control module, whether a second data acquisition module is in an abnormal state; and

activating, by the battery management control module, the second data acquisition module if the second data acquisition module is determined to be in the abnormal state.

7. The method according to claim 1, wherein the first identification message comprises identification assigned to the first data acquisition module.

8. The method according to claim 1, wherein the at least one parameter is selected from voltages, electric currents, and temperatures.

9. A battery management device, comprising:

a battery management control module configured to;

receive a first identification request sent from a first data acquisition module communicatively coupled with the battery management control module;

send a first identification message corresponding to the first identification request; and

activate the first data acquisition module;

wherein the battery management control module and the first data acquisition module are configured to communicate with each other to identify the data acquisition module, and

the first acquisition module is configured to;

acquire at least one parameter of one or more battery cells;

determine whether the first data acquisition module is activated;

send a second identification distribution request to the battery management control module if the first data acquisition module is determined to be not activated; and

receive the first identification message and send an identification distribution reply and a second identification message to the battery management control module if the first data acquisition module is determined to be activated.

10. The device according to claim 9, wherein the first and the second identification messages are identical.

11. The device according to claim 9, wherein the battery management control module is further configured to count for an amount of time, and wherein the first data acquisition module is activated when the counted time exceeds a predetermined time.

12. The device according to claim 9, wherein the battery management control module is further configured to:

receive a second identification message;

determine whether the first identification message and the second identification message are identical; and

send a third identification message corresponding to the first identification request if the first and the second identification messages are determined to be not identical.

13. The device according to claim 9, further comprising a second data acquisition module, wherein the battery management control module is further configured to:

determine whether the second data acquisition module is in an abnormal state; and

activate the second data acquisition module if the second data acquisition module is determined to be in the abnormal state.

14. The device according to claim 9, wherein the first identification message comprises identification assigned to the first data acquisition module.

15. The device according to claim 9, wherein the at least one parameter is selected from voltages, electric currents, and temperatures of a plurality of battery cells.