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Health management of rechargeable batteries

  • US 8,890,480 B2
  • Filed: 11/30/2006
  • Issued: 11/18/2014
  • Est. Priority Date: 11/30/2006
  • Status: Active Grant
First Claim
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1. A system to monitor health of a rechargeable battery electrically coupled to an aircraft, the system comprising:

  • a vehicle portion, comprising;

    a battery health management unit physically connected to the rechargeable battery by an internal data bus and including;

    a state of charge module to estimate a state of battery charge of the rechargeable battery based on battery-related data received on the internal data bus;

    a state of health module to estimate a state of battery health based on battery-related data received on the internal data bus, wherein the battery-related data comprises data collected in real time operation of the battery and fault history of the aircraft;

    a state of life module to estimate a state of battery life of the rechargeable battery based on battery-related data received on the internal data bus; and

    a prognostic management component to;

    receive an output from at least one of the state of charge module, the state of health module, and the state of life module;

    process the output to generate a health status indicator which provides a fix or fly status for the rechargeable battery; and

    output the health status indicator to an external data bus separate from the internal data bus.

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