| 摘要 |
A control method and apparatus for combating knocking in internal combustion engines which automatically adapts itself to the internal combustion engine to be controlled and, as a result of the automatic adaptation, is capable of employment, without adjustments, on different model-lines and on the individual examples of the internal combustion engines, within these lines and falling within the permissible scatter-range. Anti-knock control is obtained by means of a technique whereby the control input signal (for example, to retard the ignition timing) is increased while knock-signals are occurring, and is reduced if knock-signals do not occur, whereby, following the occurrence of knock-signals, the threshold value for detection of knock-signals is increased, as long as either the knock-signals do not diminish, in spite of the control input signal having been increased, or whereby, if a defined period has elapsed since the last reduction of the control input signal, and knock-signals are not occurring, the threshold value is reduced, or held constant. |
