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Battery charging controller

  • US 6,204,645 B1
  • Filed: 07/20/2000
  • Issued: 03/20/2001
  • Est. Priority Date: 09/11/1998
  • Status: Expired due to Term
First Claim
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1. A battery charging controller for an electric generator comprising:

  • A) an interim electric storage means for receiving electric energy generated by an electric generator and temporarily storing said energy, B) a controllable periodic electric charge drainage means for draining electric energy from said interim electric storage means into a battery, C) an estimating means for estimating a target voltage of said interim electric storage means which will result in maximum transfer of power from said electric generating unit, and D) a controller for;

    1) controlling said drainage means so as to maintain said interim electric storage means at said target voltage and 2) providing at least three charging stages comprising;

    a) a bulk charging stage when the battery is a relatively low state of charge, b) an acceptance stage when the battery is at a relatively high state of charge, and c) a float stage when the battery is fully or approximately fully charged.

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