| abstract |
The battery system has a bus bar disposed between the first and second cell balancing circuits and the first and second cell balancing circuits. The battery system measures a first voltage between two sense lines coupled to both ends of the busbar while the first and second cell balancing circuits are turned off, and a first voltage based on the first voltage It further comprises an integrated circuit for determining the value. The microcontroller receives the first voltage value, and when the first voltage value is greater than a threshold voltage value, determines that an open circuit state exists in the busbar. |