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Method and apparatus for fast battery charging using neural network fuzzy logic based control

  • US 5,714,866 A
  • Filed: 09/08/1994
  • Issued: 02/03/1998
  • Est. Priority Date: 09/08/1994
  • Status: Expired due to Term
First Claim
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1. A method of fast charging a battery, comprising:

  • providing a variable current source to supply current to charge the battery, wherein the current source delivers current at a plurality of levels;

    measuring a parameter indicative of an internal state of the battery; and

    controlling the level of charge supplied to the battery by the current source by means of a controller having an input and an output, wherein the input is a value of the measured parameter and the output of the controller is a signal which determines the level of current supplied by the current source, and further, wherein the output of the controller is determined according to the steps ofinputting data representing a charge rate of the battery as a function of the measured parameter to a neural network;

    generating a fuzzy logic rule and membership function representing the battery'"'"'s charging characteristics as an output of the neural network; and

    generating a set of instructions which control the operation of the controller to produce the controller output from the controller input, the instructions being generated from the fuzzy logic rule and membership function.

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