Method for controlling knocking in internal combustion engines

Details Method for controlling knocking in internal combustion engines Method for controlling knocking in internal combustion engines

1990-05-23

1991-08-20

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

73 35, F02P 515, G01L 2322

Patent

active

050405101

ABSTRACT:
A method for controlling knocking in internal combustion engines includes determining a measurement window for each ignition cycle. A sensor signal of a knock sensor is scanned within the measurement window at a predetermined scanning frequency to form scanning values. Digital knock values are determined as the mean value of a given number of the relatively highest scanning values. A knock threshold is formed from a noise value calculated by sliding mean-value formation from a given number of previous knock values. The digital knock values are compared with the knock threshold. The ignition angle is intermittently retarded whenever a knock value exceeds the knock threshold.

REFERENCES:
patent: 4274379 (1981-06-01), Iwata et al.
patent: 4356551 (1982-10-01), Iwase et al.
patent: 4444042 (1984-04-01), Bonitz et al.
patent: 4466406 (1984-08-01), Hartung et al.
patent: 4565087 (1986-01-01), Damson et al.
patent: 4699106 (1987-10-01), Haraguchi et al.
patent: 4750103 (1988-06-01), Toshimi et al.
patent: 4793310 (1988-12-01), Komurasaki

Affiliated with

Also associated with

Rating

Method for controlling knocking in internal combustion engines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for controlling knocking in internal combustion engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for controlling knocking in internal combustion engines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1001436