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Battery management system

  • US 5,701,068 A
  • Filed: 12/05/1996
  • Issued: 12/23/1997
  • Est. Priority Date: 04/03/1995
  • Status: Expired due to Term
First Claim
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1. A battery management system, comprising:

  • a plurality of battery modules, each said battery module comprising;

    a rechargeable battery;

    a sensor node operably coupled to said rechargeable battery, said sensor node comprising;

    a plurality of sensors operably coupled to said rechargeable battery adapted to generate sensor signals representative of conditions of said rechargeable battery; and

    a programmed microcontroller in communication with said plurality of sensors adapted to process said sensor signals to generate a plurality of battery status signals representative of a plurality of status conditions of said rechargeable battery; and

    a direct current charger operably coupled to said rechargeable battery and adapted to controllably provide a charging current to said rechargeable battery;

    a programmed central processing unit in communication with said plurality of programmed microcontrollers; and

    a bulk charger in communication with said programmed central processing unit and operably coupled to all of said rechargeable batteries and adapted to controllably provide a bulk charging current to all of said rechargeable batteries;

    wherein said rechargeable batteries are connected in series.

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