×

Battery system and method of operating the battery system

  • US 9,539,963 B2
  • Filed: 01/17/2013
  • Issued: 01/10/2017
  • Est. Priority Date: 03/23/2012
  • Status: Active Grant
First Claim
Patent Images

1. A battery system for use in a vehicle as power supply, the system comprising:

  • a plurality of battery groups connected in parallel to one another and individually connected to an input/output system line, each of the battery groups being configured to output a rated voltage while being charged, and including a defined number of battery modules connected in series;

    a plurality of coupling switches at respective ones of the battery groups, each of the plurality of coupling switches being configured to disconnect a corresponding battery group from the input/output system line in accordance with a control signal of disconnection; and

    a plurality of monitoring controllers at the respective ones of the battery groups, each of the monitoring controllers being configured to issue the control signal of disconnection to a corresponding one of the coupling switches at a respective one of the battery groups,each of the battery modules comprising a defined number of serially connected battery cells and a cell monitoring unit configured to monitor an operation state of the serially connected battery cells, andeach of the monitoring controllers being configured to be notified from a corresponding one of the cell monitoring units of the operation state of the serially connected battery cells in a corresponding one of the battery groups, to determine, based on the notified operation state, whether the corresponding one of the battery groups enters an abnormal state, and to disconnect the corresponding one of the battery groups from the input/output system line upon determining that the corresponding one of the battery groups is in the abnormal state.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×