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Method of controlling fuel composition learning

  • US 8,789,409 B2
  • Filed: 04/11/2013
  • Issued: 07/29/2014
  • Est. Priority Date: 09/06/2011
  • Status: Active Grant
First Claim
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1. A method of controlling a fuel composition learning process for a motor vehicle, comprising:

  • receiving airflow information associated with an engine of the motor vehicle;

    determining a change in airflow from the received airflow information, wherein the change in airflow is determined for a predetermined time period;

    retrieving a threshold range, wherein the threshold range includes an upper threshold for the change in airflow over the predetermined time period and wherein the threshold range includes a lower threshold for the change in airflow over the predetermined time period;

    comparing the change in airflow with the threshold range; and

    initiating the fuel composition learning process when the change in airflow is within the threshold range.

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