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Method for controlling an internal combustion engine for compensating bouncing oscillations

  • US 6,035,827 A
  • Filed: 12/07/1998
  • Issued: 03/14/2000
  • Est. Priority Date: 12/05/1997
  • Status: Expired due to Term
First Claim
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1. In a method for controlling an internal combustion engine, the improvement which comprises:

  • providing a transmission system having a transmission function, a vehicle drive train and the internal combustion engine, the transmission system to be excited by changes in a fuel supply quantity to experience low frequency bouncing oscillations defined by the transmission function of the transmission system;

    providing a transmission element for compensating the bouncing oscillations by correcting a fuel supply, the transmission element having a transmission function being inverse of the transmission function of the transmission system and being a fractional rational function in a frequency representation;

    setting a numerator of the fractional rational function equal to a denominator of the transmission function of the transmission system;

    damping the bouncing oscillations by selecting a time constant and a damping in a numerator of the inverse transmission function; and

    damping load jolts by selecting a time constant and a damping in the denominator of the inverse transmission function.

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