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Operating method for an internal combustion engine with lambda-value control

  • US 6,325,056 B1
  • Filed: 01/25/2000
  • Issued: 12/04/2001
  • Est. Priority Date: 01/30/1999
  • Status: Expired due to Fees
First Claim
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1. Method for the cylinder-selective control of an air/fuel mixture to be burnt in a multi-cylinder internal combustion engine, in which the lambda values for different cylinders or groups of cylinders are separately sensed and controlled,characterized in that the lambda values of the individual cylinders or groups of cylinders are simultaneously controlled to different required values using at least one of an integrating I-control proportion with variable integrator slope and a differentiating D-control proportion.

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