Wireless monitoring of battery for lifecycle management

• US 8,692,663 B2
• Filed: 08/10/2010
• Issued: 04/08/2014
• Est. Priority Date: 08/10/2010
• Status: Active Grant

• Current Assignee: General Motors LLC (General Motors Company)
• Original Assignee: General Motors LLC (General Motors Company)
• Inventors: Fecher, Dana B.
• Primary Examiner(s): Bugg, George A
• Assistant Examiner(s): OBINIYI, PAULSON IDOWU
• Application Number:
  US12/853,742
• Publication Number:
  US 20120038473A1
• Time in Patent Office: 1,337 Days
• Field of Search: 340/455, 340/531, 340/636.1, 340/989, 340/995.27, 235/384, 235/385, 180/65.25, 180/65.26, 180/68.5, 701/2
• US Class Current: 340/455
• CPC Class Codes: B60L 2240/60 Navigation input
• CPC Class Codes: B60L 2240/622 by satellite navigation
• CPC Class Codes: B60L 2240/70 Interactions with external data bases, e.g. traffic centres
• CPC Class Codes: B60L 58/10 for monitoring or controlling batteries
• CPC Class Codes: B60L 58/24 for controlling the temperature of batteries
• CPC Class Codes: G01R 31/371 with remote indication, e.g. on external chargers
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: H02J 13/00016 using a wired telecommunication network or a data transmission bus
• CPC Class Codes: H02J 13/00026 involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
• CPC Class Codes: H02J 13/00028 involving the use of Internet protocols
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/005 Detection of state of health [SOH]
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• 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: Y04S 30/12 Remote or cooperative charging

Abstract

The disclosed invention provides a system and apparatus for monitoring battery status and usage to facilitate battery protection, battery repurposing and battery maintenance. Wireless interrogation of a battery'"'"'s location and key attributes provides efficiencies to manage the total lifecycle of an electric vehicle battery, whether installed in a vehicle or in an environment external to the vehicle environment. A wireless battery tether, combined with a wireless battery reader, a wireless battery gateway and a centralized battery monitoring server allows management of the high-voltage battery through its lifecycle.

Claims

1. A system for monitoring a plurality of electric vehicle batteries, the system comprising:

a battery monitoring server, communicably linked to the plurality of batteries via battery readers via a wide area network, and configured to receive data from the battery readers, the battery monitoring server being configured to, for each of the plurality of batteries, perform battery monitoring actions based on the received data, wherein the battery monitoring actions include;

detecting, based on received data, a first lifecycle change point based on degradation in battery capacity of the battery below a first threshold battery capacity;

generating in response to detecting the first lifecycle change point, a notification that the battery is to be repurposed from a present use to an alternative use apart from its respective electric vehicle

detecting a second lifecycle change point based on degradation in battery capacity of the battery below a second threshold battery capacity during the alternative use of the battery, wherein the second threshold battery capacity is lower than the first battery capacity; and

generating, in response to detecting the second lifecycle change point, a notification that the battery is to be recycled.

2. The system of claim 1, wherein the received data includes battery location information.

3. The system of claim 1, wherein the received data includes one or more of a present battery charge rate, a present battery discharge rate, a present battery voltage, a present battery current, and a present battery temperature.

4. The system of claim 2, wherein the battery monitoring server is further configured to compare received location information with predetermined locational limits to determine whether the battery has been removed from an authorized location.

6. The system of claim 1, wherein the battery monitoring server is further configured to detect improper handling of the battery by comparing received collected battery data with one or more predetermined parameter thresholds to determine whether the battery is being exposed to a harmful condition.

7. The system of claim 6, wherein the battery monitoring server is further configured to alert predetermined personnel if it is determined that the battery is being exposed to a harmful condition.

5. The system of 4, wherein the battery monitoring server is further configured to alert predetermined personnel if it is determined that the battery has been removed from the authorized location.

8. A method for monitor, via a battery monitoring server, battery life associated with a plurality of electric vehicle batteries, the method comprising, for each of the plurality of batteries:

receiving data from a battery reader connected to the battery;

detecting, based on received data, a first lifecycle change point based on degradation in battery capacity of the battery below a first threshold battery capacity;

generating. in response to detecting the first lifecycle change point, a notification that the battery is to be repurposed from a present use to an alternative use apart from its respective electric vehicle;

detecting a second lifecycle change point based on degradation in battery capacity of the battery below a second threshold battery capacity during the alternative use of the battery wherein the second threshold battery capacity is lower than the first battery capacity; and

generating, in response to detecting the second lifecycle change point, a notification that the battery is to be recycled.