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Method to adjust fuel economy readings for stored energy

  • US 10,163,279 B2
  • Filed: 05/19/2016
  • Issued: 12/25/2018
  • Est. Priority Date: 04/21/2014
  • Status: Active Grant
First Claim
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1. A method for vehicle operation with an engine, comprising:

  • sensing fuel flow and vehicle speed;

    determining a fuel economy at steady-state driving conditions based on fuel flow and vehicle speed;

    sensing a brake pedal position;

    during non-braking conditions, estimating a conversion factor for stored vehicle energy based on the fuel economy at steady-state driving conditions;

    waiting to estimate the conversion factor during braking conditions; and

    displaying a fuel economy reading to an operator of a vehicle based on fuel consumed by the engine adjusted for stored vehicle energy with the conversion factor.

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