INTELLIGENT FAULT-TOLERANT BATTERY MANAGEMENT SYSTEM
First Claim
1. A battery pack monitoring system for monitoring a plurality of battery modules within a battery pack, each of the battery modules to include one or more battery cells, the battery pack monitoring system comprising:
- a plurality of primary monitoring circuits coupled respectively to monitor a plurality of battery modules and having circuitry to output measurement values that correspond to respective battery modules;
at least one standby monitoring circuit coupled to monitor at least one of the battery modules and having circuitry to output a first measurement value that corresponds to the at least one of the battery modules; and
a first pack controller to selectively apply, in a determination of battery pack status, either the first measurement value from the standby monitoring circuit or a second measurement value from one of the primary monitoring circuits coupled to the at least one of the battery modules.
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Accused Products
Abstract
A battery pack monitoring system for monitoring a plurality of battery modules within a battery pack. Primary monitoring circuits are coupled to monitor respective battery modules and have circuitry to output measurement values that correspond to the respective battery modules. At least one standby monitoring circuit is coupled to monitor at least one of the battery modules and includes circuitry to output a first measurement value that corresponds to the battery module. A pack controller selectively applies, in a determination of battery pack status, either the first measurement value from the standby monitoring circuit or a second measurement value from one of the primary monitoring circuits.
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Citations
20 Claims
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1. A battery pack monitoring system for monitoring a plurality of battery modules within a battery pack, each of the battery modules to include one or more battery cells, the battery pack monitoring system comprising:
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a plurality of primary monitoring circuits coupled respectively to monitor a plurality of battery modules and having circuitry to output measurement values that correspond to respective battery modules; at least one standby monitoring circuit coupled to monitor at least one of the battery modules and having circuitry to output a first measurement value that corresponds to the at least one of the battery modules; and a first pack controller to selectively apply, in a determination of battery pack status, either the first measurement value from the standby monitoring circuit or a second measurement value from one of the primary monitoring circuits coupled to the at least one of the battery modules. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of controlling a battery pack having a plurality of battery modules, the method comprising:
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outputting respective measurement values from each of a plurality of primary monitoring circuits coupled respectively to monitor the plurality of battery modules; outputting a first measurement value from a standby monitoring circuit coupled to monitor at least one of the plurality of battery modules; and selecting, for application in a determination of battery pack status, either the first measurement value from the standby monitoring circuit or a second measurement value from one of the primary monitoring circuits coupled to the at least one of the battery modules. - View Dependent Claims (17, 18, 19)
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20. A battery monitoring apparatus for monitoring status of a plurality of battery modules, the battery monitoring apparatus comprising:
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means for outputting respective measurement values from each of a plurality of primary monitoring circuits coupled respectively to monitor the plurality of battery modules; means for outputting a first measurement value from a standby monitoring circuit coupled to monitor at least one of the plurality of battery modules; and means for selecting, for application in a determination of battery pack status, either the first measurement value from the standby monitoring circuit or a second measurement value from one of the primary monitoring circuits coupled to the at least one of the battery modules.
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Specification