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Possible vehicle running distance indication

  • US 4,046,998 A
  • Filed: 02/03/1976
  • Issued: 09/06/1977
  • Est. Priority Date: 02/11/1975
  • Status: Expired due to Term
First Claim
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1. A method of indicating a remaining possible vehicle running distance available on the remnant fuel of a vehicle comprising the steps of:

  • measuring the amount of fuel consumed;

    measuring the remnant fuel amount in a fuel tank;

    measuring the running distance the vehicle has run;

    storing the measured remnant fuel amount when either one of the measured consumed fuel amount and the measured running distance has reached a predetermined value;

    generating a train of pulses after said storing step, one cycle period of the train of pulses being determined by the other one of the measured consumed fuel amount and the measured running distance;

    calculating a time interval in which the number of pulses in the train of pulses reaches the stored remnant fuel amount, said time interval being proportional to a remaining possible running distance available on the stored remnant fuel amount; and

    indicating the calculated remaining possible running distance by an indicator.

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