| 主权项 |
1. A battery monitoring system comprising:
a signal bus including at least two sense signal conductors, at least two interrogation signal conductors and one or more logic conductors; a plurality of battery selectors, each of the battery selectors being configured to be electronically attached to a battery and each including
a calibration shunt of known impedance;at least two pole interfaces, each of the pole interfaces configured to communicate interrogation signals to a respective battery pole and to receive sense signals from the respective battery pole, the interrogation signals and sense signals being communicated via separate electrical conductors of a Kelvin probe, andswitch logic configured to receive selector selection signals via the one or more logic conductors, and configured to select between, in the alternative, testing across the calibration shunt and testing across the at least two pole interfaces; and a central monitoring unit electrically coupled to the plurality of battery selectors by the signal bus, the central monitoring unit being
configured to provide the interrogation signals to the plurality of battery selectors via the interrogation signal conductors,configured to receive the sense signals from the plurality of battery selectors via the sense signal conductors, andconfigured to send the selector selection signals to the plurality of battery selectors via the logic conductors so as to select an individual member of the plurality of battery selectors and, within the selected individual member of the plurality of battery selectors, to select between testing across the calibration shunt and testing across the respective battery poles. |
