| 摘要 |
PCT No. PCT/DE89/00292 Sec. 371 Date Nov. 14, 1990 Sec. 102(e) Date Nov. 14, 1990 PCT Filed May 10, 1989 PCT Pub. No. WO89/11030 PCT Pub. Date Nov. 16, 1989.In a method for lambda control, the lambda controller actual value for forming a control deviation is not only measured by a lambda probe having a jump response but in addition, the averaged lambda value is used as a lambda measurement actual lvalue which is compared to a lambda measurement desired value. The lambda measurement desired value is fixed in advance for different values of operating variables such that it corresponds to that lambda value for every operating condition for which an optimal toxic substance conversion results. If the lambda measurement actual value deviates from a pregiven value, then at least one control parameter for the two-position control is so changed that the desired value self adjusts thereafter. This method and an apparatus operating pursuant thereto permit the two-position control to be so controlled with respect to its characteristics in all operating conditions that the particular desired mean lambda value self adjusts for optimal toxic substance conversion.
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