×

Automatic switchover from cell voltage to interconnect voltage monitoring

  • US 10,084,214 B2
  • Filed: 03/15/2013
  • Issued: 09/25/2018
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
Patent Images

1. A battery cell module comprising:

  • a plurality of cells;

    a voltage measurement device;

    a sense wire coupled to an input of the voltage measurement device;

    a first connector configured to couple a first terminal of the plurality of cells to a previous battery cell module via two separate conductors of the first connector, so as to make available to the previous battery cell module the first terminal of the plurality of cells as both a power connection and a first sense point;

    a second connector configured to couple a second terminal of the plurality of cells to a next battery cell module via a first conductor of the second connector and couple the sense wire to the next battery cell module via a second conductor of the second connector, wherein the next battery cell module couples the sense wire to a second sense point of the next battery cell module; and

    a resistive device coupling the sense wire and the second terminal of the plurality of cells;

    wherein the first connector and the second connector are configured to couple the previous battery cell module, the battery cell module and the next battery cell module in series wherein the sense wire is coupled to the second connector;

    wherein the voltage measurement device couples to the sense wire and the first conductor of the second connector to detect a cell-to-cell resistance across the second connector;

    the voltage measurement device configured to detect whether corrosion, a fraying wire, a broken connector or broken wire exists within the second connector, based upon the detected cell-to-cell resistance.

View all claims
  • 8 Assignments
Timeline View
Assignment View
    ×
    ×