VEHICLE BATTERY MONITORING SYSTEM

• US 20150301113A1
• Filed: 09/09/2011
• Published: 10/22/2015
• Est. Priority Date: 09/10/2010
• Status: Active Grant

• Current Assignee: CPS Technology Holdings, LLC
• Original Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Inventors: Sims, Michael J., Muis, Pascal, Eloy, Frederic, Lemoult, Jean-Claude, Lagabe, Gregoire
• Granted Patent: US 9,766,293 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01K 13/00 Thermometers specially adapted for specific purposes
• CPC Class Codes: G01R 31/371 with remote indication, e.g. on external chargers
• CPC Class Codes: G01R 31/382 Arrangements for monitoring battery or accumulator variables, e.g. SoC
• CPC Class Codes: H01M 10/4285 Testing apparatus
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H04B 2203/5445 Local network
• CPC Class Codes: H04B 2203/5458 Monitor sensor; Alarm systems
• CPC Class Codes: H04B 3/548 the power on the line being DC arrangements for feeding power H04L12/10; extracting feeding power from signals H04L25/02
• CPC Class Codes: H04Q 2209/10 using a centralized architecture
• CPC Class Codes: H04Q 2209/40 using a wireless architecture
• CPC Class Codes: H04Q 2209/75 by polling or interrogating the sub-stations
• CPC Class Codes: H04Q 2209/883 where the sensing device enters an active or inactive mode
• 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 battery monitoring system includes a self-contained measurement device configured to mount to a battery cell. The self-contained measurement device includes a sensor configured to monitor an operational parameter of the battery cell, and a communication module configured to output a signal indicative of the operational parameter.

Claims

1. A battery monitoring system, comprising:

a self-contained measurement device configured to mount to a battery cell, wherein the self-contained measurement device comprises a sensor configured to monitor an operational parameter of the battery cell, and a communication module configured to output a signal indicative of the operational parameter.

2. The battery monitoring system of claim 1, wherein the self-contained measurement device comprises a first lead configured to couple to a positive terminal of the battery cell, and a second lead configured to couple to a negative terminal of the battery cell.

3. The battery monitoring system of claim 2, wherein the communication module is communicatively coupled to the first and second leads, and the communication module is configured to output the signal indicative of the operational parameter via modulation of a power signal output by the battery cell.

4. The battery monitoring system of claim 2, wherein the sensor comprises a voltmeter electrically coupled to the first and second leads, and the operational parameter comprises a battery voltage.

5. The battery monitoring system of claim 1, wherein the sensor comprises a temperature sensor, and the operational parameter comprises a battery temperature.

6. The battery monitoring system of claim 1, wherein the self-contained measurement device comprises an integrated circuit having the sensor and the communication module.

7. The battery monitoring system of claim 1, wherein the self-contained measurement device comprises a memory configured to store battery cell identification information, operational parameter history information, usage information, or a combination thereof.

8. The battery monitoring system of claim 1, wherein the communication module is configured to output the signal indicative of the operational parameter via a wireless communication link.

9. The battery monitoring system of claim 1, wherein the communication module is configured to receive a signal from a battery management unit, a second self-contained measurement device, or a combination thereof.

10. The battery monitoring system of claim 1, wherein the self-contained measurement device is configured to mount to an interior surface of the battery cell.

11. A battery monitoring system, comprising:

a sensor configured to monitor an operational parameter of a battery cell; and

a communication module configured to output a signal indicative of the operational parameter via modulation of a power signal output by the battery cell.

12. The battery monitoring system of claim 11, comprising a self-contained measurement device configured to mount to the battery cell, wherein the self-contained measurement device includes the sensor and communication module.

13. The battery monitoring system of claim 11, wherein the sensor comprises a voltmeter, a temperature sensor, or a combination thereof.

14. The battery monitoring system of claim 11, comprising a memory configured to store battery cell identification information, operational parameter history information, usage information, or a combination thereof.

15. A battery monitoring system, comprising:

a self-contained measurement device configured to mount to a battery cell, wherein the self-contained measurement device comprises a sensor configured to monitor an operational parameter of the battery cell, and a first communication module configured to output a signal indicative of the operational parameter via a wireless communication link.

16. The battery monitoring system of claim 15, comprising:

a second communication module configured to receive the signal indicative of the operational parameter via the wireless communication link; and

an antenna communicatively coupled to the second communication module and configured to extend about a plurality of battery cells.

17. The battery monitoring system of claim 16, comprising an enclosure configured to house the sensor, the first communication module, the second communication module and the antenna, and to shield external signals from interfering with the wireless communication link.

18. The battery monitoring system of claim 15, wherein the self-contained measurement device is configured to permanently affix to an exterior surface of the battery cell or an interior surface of the battery cell.

19. The battery monitoring system of claim 15, wherein the sensor comprises a voltmeter, a temperature sensor, or a combination thereof.

20. The battery monitoring system of claim 15, wherein the self-contained measurement device comprises an integrated circuit having the sensor and the first communication module.