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Deconvolution method of resonance detection and removal from crankshaft speed measurements

  • US 5,744,722 A
  • Filed: 09/16/1996
  • Issued: 04/28/1998
  • Est. Priority Date: 09/16/1996
  • Status: Expired due to Term
First Claim
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1. A method of resonance detection and removal from crankshaft speed measurements comprising:

  • measuring a crankshaft speed;

    converting said measured crankshaft speed into an input signal;

    sending said input signal to an engine controller;

    determining an impulse response of a resonance system from said input signal;

    subjecting said input signal to a deconvolution operation utilizing said impulse response of said resonance system; and

    obtaining an output signal representative of an engine performance characteristic from said deconvolution operation.

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