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Fuel-level detecting system for automotive vehicle

  • US 4,773,260 A
  • Filed: 06/19/1987
  • Issued: 09/27/1988
  • Est. Priority Date: 06/23/1986
  • Status: Expired due to Term
First Claim
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1. A fuel-level detecting system for monitoring fuel consumption in an automotive engine and for detecting residual fuel in a fuel tank which defines a first fuel chamber being in communication with said automotive engine for supplying the fuel thereto and for receiving the fuel recirculating therefrom, and a second chamber being in communication with means for supplying the fuel to said first chamber at a supply rate irrespective of consumption rate of the fuel in said first chamber, said system comprising:

  • a first resistor means, disposed within said first fuel chamber, for detecting a first level of the fuel in said first fuel chamber, said first resistor means having a resistance value variable depending upon said first level;

    a second resistor means, disposed within said second fuel chamber, for detecting a second level of the fuel in said second fuel chamber, said second resistor means having a resistance value veriable depending upon said second level; and

    means, associated with said first and second resistor means, for deriving a residual fuel amount indicative value based on said resistances of said first and second resistor means.

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