For the method for the running parameter of sense cycle pulsation

For the method for the running parameter of sense cycle pulsation

  • CN 101,910,594 B
  • Filed: 12/18/2008
  • Issued: 03/16/2016
  • Est. Priority Date: 12/28/2007
  • Status: Active Grant
First Claim
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1. , for detecting a method for the running parameter of the periodically pulsing of internal-combustion engine (10), said method comprising the steps of:

  • -detect the measurement parameter of the running parameter of the periodically pulsing of described internal-combustion engine (10), to produce the measurement signal of periodically pulsing,-carry out measurement signal described in discretization with regular time increment in the time domain, wherein on the cycle of described measurement signal, obtain a large amount of discrete measured values according to the number of the incremental time in described cycle respectively, wherein said measured value is considered to represent the measurement signal in each incremental time respectively, and-by obtaining the mean value on the described cycle of described measurement signal from the mode of described discrete measured values calculating mean value,It is characterized in that,The waveform of described measurement signal on the incremental time (61) of correspondence is approached with multinomial at least one discrete measured values in described discrete measured values, to obtain described discrete measured values, the wherein said waveform utilizing multinomial to carry out approach be the incremental time (61) of correspondence in described discrete measured values exceed the border in described cycle discrete measured values on carry out, wherein described measurement signal to be sampled and by the signal waveform between with described multinomial the mode that the measured value at the two ends of described incremental time (61) connects being come with these two ends of described approximation by polynomi-als at two ends of described incremental time (61), and when calculating described mean value, to be weighted than the measured value exceeding described cycle boundary for calculating the less incremental time (61) of share to described correspondence of at least one measured value in other measured values of described mean value.

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