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Driver advisory system for fuel economy improvement of a hybrid electric vehicle

  • US 8,108,136 B2
  • Filed: 08/09/2007
  • Issued: 01/31/2012
  • Est. Priority Date: 08/09/2007
  • Status: Active Grant
First Claim
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1. A driver advisory system comprising:

  • a vehicle system controller having a fuzzy logic controller with an instantaneous fuel economy input, a desired fuel economy input and a driver advisory output;

    the fuzzy logic controller configured to develop an accelerator pedal position modifier based on a fuel economy error which is a difference between the desired and instantaneous fuel economy, a rate of change of the fuel economy error, and an actual engine power.

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