×

Apparatus and method of detecting combustion state of internal combustion engine and recording medium storing program for execution of the detecting method

  • US 5,991,684 A
  • Filed: 11/07/1997
  • Issued: 11/23/1999
  • Est. Priority Date: 09/04/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. An apparatus of detecting a combustion state of an internal combustion engine, comprising:

  • means for calculating a combustion parameter value of said engine on the basis of measurement data concerning an engine speed;

    means for correcting a value of the data concerning the engine speed with a correction value;

    means for calculating said correction value for making the calculated combustion parameter value fall within a predetermined range;

    means for setting said correction value to a predetermined value when a predetermined condition is satisfied;

    means for calculating an average value of correction values obtained in the past; and

    condition decision means,whereby when at least one of the running state of said engine and a running condition does not meet a predetermined condition, said correction value is set to said average value.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×