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Method and apparatus for operation of an internal combustion engine in a true closed loop fuel control

  • US 6,098,605 A
  • Filed: 01/21/1999
  • Issued: 08/08/2000
  • Est. Priority Date: 01/21/1999
  • Status: Expired due to Fees
First Claim
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1. A method of controlling the fuel delivery rate at which fuel is supplied to the fuel intake of an internal combustion engine while the engine is operating at a desired angular speed, said method comprising, in combination, the steps of:

  • measuring a quantity of air being inducted into the internal combustion engine and then processing a resulting signal to determine a measured engine load value;

    comparing said engine load value with a table of desired engine load values to produce an indication of when said load value is either less than or greater than a desired value;

    responding to an onset of each indication of a load value greater than that desired by increasing fuel delivery to the engine intake until the load value is equal to or less than said desired load value; and

    responding to an onset of each indication of a load value less than that desired by decreasing fuel delivery to the engine intake until the load value is equal to or greater than said desired load value.

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