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US 6,279,536 B1Granted
Method for knock regulation in an internal combustion engine
AssigneeSiemens Aktiengesellschaft
InventorsGerhard Brielbeck, Wilfried Kleczka
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Abstract
A method for knock regulation in an internal combustion engine, includes using signals from at least one knock sensor to obtain knock values (KW) and using these knock values (KW) to form knock thresholds (KS) with which the knock values (KW) are compared for the purpose of identifying engine knock. Each determined knock value (KW) is compared with a limit value (g) and is replaced by a replacement value (E) if it exceeds the limit value (g), for calculation of a practical knock threshold (KS).
Claims11
A method for knock regulation in an internal combustion engine, which comprises:
- forming knock values from signals of at least one knock sensor within a measurement window to be specified for each ignition;
- using the knock values to form noise values;
- using the noise values to form knock thresholds with which the knock values are compared;
- identifying engine knocking if the knock value exceeds the knock threshold;
- comparing each determined knock value with a limit value;
- and
- replacing the knock value for calculating the noise value and the knock threshold, with a replacement value, if it exceeds the limit value.
4 more elements
Dependencies are inferred from the claim text.