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INTELLIGENT FAULT-TOLERANT BATTERY MANAGEMENT SYSTEM

  • US 20090206841A1
  • Filed: 02/17/2009
  • Published: 08/20/2009
  • Est. Priority Date: 02/15/2008
  • Status: Abandoned Application
First Claim
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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:

  • 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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