Continuous Monitoring Architecture for Power Storage Systems
First Claim
Patent Images
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 respective battery and each including;
switch logic configured to receive selector selection signals via the one or more logic conductors, the selector selection signals and switch logic being configured to select one of the plurality of battery selectors at a time for use in monitoring the respective battery attached to the selected one battery selector,at least two pole interfaces, each of the pole interfaces configured to communicate an interrogation signal to a battery pole and to receive a sense signal from the respective battery pole, the interrogation signal and sense signal being communicated via separate electrical conductors of a Kelvin probe, andan activation relay responsive to the switch logic and configured to control communication of the interrogation signal to one of the at least two pole interfaces and configured to control communication of the sense signal from one of 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 unitconfigured 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 to monitor the respective battery connected thereto.
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Abstract
A battery monitoring system includes a central monitoring system and a set of individual battery selectors. The central monitoring system is electrically connected to the battery selectors and each of the battery selectors is connected to one or more batteries. In operation, commands are sent from the central monitoring system to the individual battery selectors so as to turn one on at a time. When the battery selector is on, test and response signals can be communicated between the one or more batteries connected to the battery selector and the central monitoring system. In some embodiments, the batteries include a reference circuit configured for calibration of battery tests.
5 Citations
23 Claims
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1. A battery monitoring system comprising:
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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 respective battery and each including; switch logic configured to receive selector selection signals via the one or more logic conductors, the selector selection signals and switch logic being configured to select one of the plurality of battery selectors at a time for use in monitoring the respective battery attached to the selected one battery selector, at least two pole interfaces, each of the pole interfaces configured to communicate an interrogation signal to a battery pole and to receive a sense signal from the respective battery pole, the interrogation signal and sense signal being communicated via separate electrical conductors of a Kelvin probe, and an activation relay responsive to the switch logic and configured to control communication of the interrogation signal to one of the at least two pole interfaces and configured to control communication of the sense signal from one of 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 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, and configured 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 to monitor the respective battery connected thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A battery selector comprising:
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switch logic configured to receive selector selection signals, the switch logic being configured to generate an output responsive to a match between an identify of the battery selector and the received selector selection signals; at least a first pole interface, a second pole interface and a third pole interface, each of the first, second and third pole interfaces being configured to be electrically connected to a respective battery pole using at least an interrogate conductor and a sense conductor of a respective Kelvin probe; an activation relay configured to open and close in response to the output of the switch logic, configured to allow communication of interrogation signals from an external bus to at least two of the first pole interface, the second pole interface and the third pole interface when the activation relay is closed, and configured to allow communication of sense signals to the external bus from least two of the first pole interface, the second pole interface and the third pole interface when the activation relay is closed; and a pole selection relay configured to open and close in response to the output of the switch logic, and configured to select which two of the first pole interface, the second pole interface and the third pole interface are in electrical communication with the external bus responsive to the opening and closing of the pole selector relay. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A central monitoring system comprising
a bus interface configured to be electrically connected to a signal bus; -
interrogation signal logic configured to provide interrogation signals to the bus interface, the interrogation signals being further configured for detecting a state of a battery monitored by the central monitoring unit; sensing logic configured to receive sense signals from the battery, the sense signals being in response to the interrogation signals, the sensing logic being further configured to interpret the received sense signals and generate data characterizing a state of the battery based on the interpretation; selection logic configured to generate selection signals and to provide the generated selection signals to the bus interface, the selection signals being configured to select which one of a plurality of batteries receives the interrogation signals at a given time; memory configured to store the data characterizing the state of the battery, for each of the plurality of batteries; and a microprocessor configured to execute at least the sensing logic. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification