Internal-combustion engines – Combustion chamber means combined with air-fuel mixture...
Patent
1987-01-23
1988-10-18
Nelli, Raymond A.
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
123435, 73 35, F02P 504
Patent
active
047779209
ABSTRACT:
A system and method for controlling ignition timing of an internal combustion engine controls the ignition timing in accordance with the measured intensity of knocking when such occurs. The system corrects the ignition timing by a retardation amount related to the intensity of knocking. The system monitors engine vibration over a period in which knocking cannot occur and over the period after TDC in which knocking may occur and compares the vibration intensity levels to produce a statistical measure of knocking intensity. If the measured intensity reflects a high probability of severe knocking, ignition is retarded immediation to an extent related to the measured intensity. If knocking is absent to a high probability, ignition timing is advanced to a fixed extent. When only light knocking is detected, the measured intensity is monitored over numerous ignition cycles until the cumulative intensity level reflects a high probability either of desirable trace knocking or moderately disruptive knocking. In the latter case, ignition is retarded to a fixed extent.
REFERENCES:
patent: 4106447 (1978-08-01), West
patent: 4355359 (1982-10-01), Kanegae et al.
patent: 4368635 (1983-01-01), Yoshida
patent: 4370964 (1983-02-01), Muranaka et al.
patent: 4373489 (1983-02-01), Yamaguchi
patent: 4376428 (1983-03-01), Hata et al.
patent: 4380981 (1983-04-01), Enoshima et al.
patent: 4382429 (1983-05-01), Enoshima et al.
patent: 4393837 (1983-07-01), Sugihara et al.
patent: 4409937 (1983-10-01), Asano
patent: 4420967 (1983-12-01), Enoshima et al.
patent: 4423621 (1984-01-01), Kenichi
patent: 4425890 (1984-01-01), Yamaguchi
patent: 4452204 (1984-06-01), Matsubara
patent: 4455862 (1984-06-01), Takeuchi
patent: 4463722 (1984-08-01), Kobayashi
patent: 4481924 (1984-11-01), Kobayashi
patent: 4513716 (1985-04-01), Haroguchi et al.
Nakajima Yuji
Oshiage Katsunori
Yamamoto Akito
Nelli Raymond A.
Nissan Motor Company Limited
LandOfFree
System for controlling ignition timing in an internal combustion does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for controlling ignition timing in an internal combustion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for controlling ignition timing in an internal combustion will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1188716