Battery management system and method for transferring data within the battery management system

• US 8,341,449 B2
• Filed: 06/24/2010
• Issued: 12/25/2012
• Est. Priority Date: 04/16/2010
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Daniel, Vaughan, Trader, Michael, Park, JongMin, Robertson, David C.
• Primary Examiner(s): PHAN, RAYMOND NGAN
• Application Number:
  US12/822,285
• Publication Number:
  US 20110258471A1
• Time in Patent Office: 915 Days
• Field of Search: 713300-340
• US Class Current: 713/340
• 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: H04Q 2209/75 by polling or interrogating the sub-stations
• 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

Abstract

A battery management system is provided. The system includes a battery monitoring device having a microprocessor and a hardware component. The microprocessor identifies a non-modifiable node ID from the hardware component. The microprocessor also obtains operational parameters associated with the at least one battery cell. The microprocessor computes a network ID for the battery monitoring device based on the non-modifiable node ID. The system further includes a main controller that communicates with the battery monitoring device via a communication bus utilizing the network ID.

Claims

1. A method for transferring data within a battery management system, the battery management system having a battery monitoring device, a communication bus, and a main controller, the method comprising:

identifying a non-modifiable node ID uniquely assigned to the battery monitoring device and stored in a hardware component of the battery monitoring device, by using a microprocessor of the battery monitoring device which accesses the hardware component;

computing a network ID for the battery monitoring device based on the non-modifiable node ID, by using the microprocessor;

measuring operational parameters associated with at least one battery cell, by using the battery monitoring device; and

transmitting data corresponding to the measured operational parameters from the microprocessor through the communication bus to the main controller, by using the network ID.

2. The method of claim 1, further comprising:

receiving, by the microprocessor, a command from the main controller which requests data corresponding to the operational parameters associated with the at least one battery cell; and

measuring the operational parameters of the at least one battery cell in response to the command by using the battery monitoring device.

3. The method of claim 1, wherein the battery management system further comprises a memory which stores a table listing a device number of the battery monitoring device in association with the non-modifiable node ID thereof, the method the further comprising:

determining the device number by using the table based on the identified non-modifiable node ID.

4. A battery management system, comprising:

a battery monitoring device having a microprocessor and a hardware component, the microprocessor configured to identify a non-modifiable node ID uniquely assigned to the battery monitoring device and stored in the hardware component by accessing the hardware component, configured to obtain operational parameters associated with at least one battery cell, and configured to compute a network ID for the battery monitoring device based on the non-modifiable node ID; and

a main controller configured to communicate with the battery monitoring device via a communication bus by using the network ID.

5. The battery management system of claim 4, wherein the microprocessor is further configured to transmit data corresponding to the measured operational parameters through the communication bus to the main controller by using the network ID.

6. The battery management system of claim 4, further comprising:

a memory which stores a table listing a device number of the battery monitoring device in association with the non-modifiable node ID thereof, wherein the main controller is configured to determine the device number by using the table based on the identified non-modifiable node ID.

7. A method for transferring data within a battery management system, the battery management system having a battery monitoring device, a communication bus, and a main controller, the method comprising:

identifying a non-modifiable node ID associated with the battery monitoring device from a hardware component of the battery monitoring device, utilizing a microprocessor of the battery monitoring device;

computing a network ID for the battery monitoring device based on the non-modifiable node ID, utilizing the microprocessor;

calculating a device number associated with the battery monitoring device based on the non-modifiable node ID, utilizing the microprocessor of the battery monitoring device;

receiving a command from the main controller at the microprocessor, the command having the device number associated with the battery monitoring device, the command requesting data corresponding to the operational parameters associated with at least one battery cell;

measuring the operational parameters of the at least one battery cell in response to the command utilizing the battery monitoring device; and

transmitting data corresponding to the measured operational parameters from the microprocessor through the communication bus to the main controller, utilizing the network ID.

8. The method of claim 7, wherein the microprocessor is configured to compute the network ID by performing an arithmetic shift of a plurality of bits of the non-modifiable node ID associated with the battery monitoring device.