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Exhaust gas recirculation control system

  • US 5,533,489 A
  • Filed: 03/30/1995
  • Issued: 07/09/1996
  • Est. Priority Date: 03/30/1995
  • Status: Expired due to Term
First Claim
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1. A control system operable to receive an input signal and generate a system output signal, comprising:

  • a first signal processor operable to produce a first signal processor output signal based upon a rate of change of the input signal; and

    a second signal processor operable to produce a tracking signal which tracks the input signal over time, the tracking signal not exceeding a predetermined maximum rate of change, and further operable to produce a second signal processor output signal equal to a difference between the input signal and the tracking signal;

    wherein the system output signal comprises a summation of the first signal processor output signal and the second signal processor output signal.

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