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Vehicle engine refueling detection apparatus and method and fuel supply apparatus and method

  • US 5,542,394 A
  • Filed: 04/13/1995
  • Issued: 08/06/1996
  • Est. Priority Date: 04/15/1994
  • Status: Expired due to Term
First Claim
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1. An apparatus for detecting refueling of a vehicle engine, which outputs a detection signal indicating the presence or absence of refueling of a fuel tank from which fuel is supplied to the engine, said apparatus comprising;

  • a remaining quantity sensor for detecting a remaining fuel quantity inside said fuel tank, andrefueling detection means for outputting a refueling signal indicating that said fuel tank has been refueled, when an increase change in the remaining fuel quantity detected by said remaining quantity sensor is equal to or greater than a predetermined proportion of the remaining fuel quantity before the increase change.

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