Automatic switchover from cell voltage to interconnect voltage monitoring
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.
8 Assignments
0 Petitions
Accused Products
Abstract
A battery assembly is provided. The battery assembly includes a first module having a first plurality of cells and a first voltage measurement device. The battery module includes a sense wire, coupled to a voltage measurement input of the first voltage measurement device and resistively coupled to a terminal of the first plurality of cells. The battery assembly includes a second module having a second plurality of cells and being configured to couple to the first module with the terminal of the first plurality of cells coupling to a terminal of the second plurality of cells via a connector and with the sense wire coupling to the terminal of the second plurality of cells via the connector.
-
Citations
20 Claims
-
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 Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A battery assembly comprising:
-
a first module having a first plurality of cells and a first voltage measurement device; a sense wire, coupled to a voltage measurement input of the first voltage measurement device and resistively coupled to a terminal of the first plurality of cells; and a second module having a second plurality of cells and being configured to couple to the first module with the terminal of the first plurality of cells coupling to a terminal of the second plurality of cells via a first conductor of a first connector and with the sense wire coupling to the terminal of the second plurality of cells via a second conductor of the first connector wherein the sense wire couples to the first connector; wherein the voltage measurement device couples to the sense wire and the first conductor of the first connector to detect a cell-to-cell resistance across the first conductor of the first connector;
the voltage measurement device configured to detect whether corrosion, a fraying wire, a broken connector or broken wire exists within the first connector, based upon the detected cell-to-cell resistance. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification