KLOPFREGELUNG IN EINER FUNKENGEZÜNDETEN BRENNKRAFTMASCHINE

摘要

PCT No. PCT/EP92/00583 Sec. 371 Date Nov. 19, 1992 Sec. 102(e) Date Nov. 19, 1992 PCT Filed Mar. 18, 1992 PCT Pub. No. WO92/16740 PCT Pub. Date Oct. 1, 1992.A knock control system and method for operation of a spark ignition internal combustion engine having short-term regulation with a relatively large regulating action, such that when knocking events occur, the value for an actual ignition point is reset in the retard direction from a predetermined characteristic diagram value. In the absence of knocking events, the actual ignition point is advanced to the predetermined characteristic diagram value. Long-term adaptation is carried out such that the predetermined characteristic diagram value is reset from the knock limit by an adaptation value when knocking events occur during a change between a first operating condition to a second operating condition so that the short-term regulation is referred to a new predetermined ignition point value associated with the second operating condition. There is a switch-over to a smaller regulating action after an adaptation has been effected and after a minimum number of knockless ignitions have been desired. A more advanced ignition angle and improved efficiency of the internal combustion engine are achieved.