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Remaining fuel amount measuring apparatus for a fuel tank

  • US 5,826,459 A
  • Filed: 04/03/1997
  • Issued: 10/27/1998
  • Est. Priority Date: 04/19/1996
  • Status: Expired due to Term
First Claim
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1. A remaining fuel amount measuring apparatus for a fuel tank, comprising:

  • detecting means for detecting an amount of fuel remaining in the fuel tank to output remaining fuel amount data;

    block data storage means for capturing the remaining fuel amount data outputted from said detecting means at prescribed periods and compiling the captured remaining fuel amount data into blocks each composed of a prescribed number of data to be successively stored;

    simple average computing means for computing a simple average for each block on the basis of the block data stored in said block data storage means;

    weighted average computing means for computing a weighted average by further averaging the simple averages of a plurality of blocks on the basis of the simple average for a newest block and that for at least one past block computed by said simple average computing means; and

    remaining fuel amount outputting means for converting the weighted average computed by said weighted average computing means into a remaining fuel amount to be outputted.

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