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Non-intrusive method of measuring engine operating parameters

  • US 6,873,902 B2
  • Filed: 03/27/2003
  • Issued: 03/29/2005
  • Est. Priority Date: 03/27/2003
  • Status: Expired due to Fees
First Claim
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1. A method for measuring at least one parameter of a combustion engine containing a plurality of cylinders, the at least one parameter being related to firing of the cylinders, the method comprising:

  • capturing a series of images of a component moving in synchronism with the engine;

    extracting motion information from the series of images indicative of motion of the engine caused by the firing of at least one of the cylinders; and

    extracting the at least one parameter from the motion information.

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