Method for operating a combustion engine when changing from full engine operation to partial engine operation

Abstract

In a combustion engine, combustion chamber-specific deviations can be equalized by associating a specific adjustable air-fuel ratio with the individual combustion chambers. When changing from full engine operation to partial engine operation, the associated air-fuel ratios do not always remain optimal. A new air-fuel ratio, which is adjusted immediately when changing from full engine operation to partial engine operation, is then associated with the combustion chambers of a subgroup of combustion chambers to which an air-fuel mixture is applied in partial engine operation. The new individual air-fuel ratios can be easily computed, in particular, from the individual air-fuel ratios associated with full engine operation.

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