Knock suppression system for internal combustion engine

Patent · Tue Dec 02 04:00:00 EST 1986

OSTI ID:7010273

Komurasaki, S; Ueda, A; Morimoto, Y; Kadota, Y

This patent describes a knock suppression system for an internal combustion engine comprising: means for detecting the load condition of the engine; means for detecting the rotating speed of the engine; means for detecting a knock signal at a level corresponding to the knock intensity of the engine; means for determining whether the operating condition of the engine is steady; storage means for storing a reference-controlled variable for the suppression of knocks corresponding to the level of the knock signal when it is determined by the determining means that the operating condition of the engine determined from the rotating speed and the load condition is steady; means for correcting the reference-controlled variable according to the magnitude of the knock signal including means for determining whether the knock signal is larger than a predetermined value; and means for retarding an ignition signal to be applied to the ignition coil of the engine according to the corrected reference-controlled variable.

• Assignee: Mitsubishi Denki Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4625691
• OSTI ID: 7010273
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
COMPUTERIZED CONTROL SYSTEMS
CONTROL
CONTROL SYSTEMS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ENGINES
EQUIPMENT
HEAT ENGINES
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
KNOCK CONTROL
MEMORY DEVICES
MOTION
ROTATION
SIGNALS
STEADY-STATE CONDITIONS
VELOCITY