System for controlling ignition timing in an internal combustion engine and method therefor

Patent · Tue Oct 18 04:00:00 EDT 1988

OSTI ID:6529379

Oshiage, K; Yamamoto, A; Nakajima, Y

This patent describes a system for controlling ignition timing for an internal combustion engine, comprising: (a) first means, including a sensor for detecting a pressure in an engine cylinder of the engine and outputting a signal indicative thereof, for detecting the occurrence of an engine knocking on the basis of the signal output by the sensor; (b) second means for measuring the intensity of the knocking, the occurrence thereof being detected by the first means, the second means measuring the intensity of the knocking on the basis of a difference between correlated values of combustion vibration energies when knocking occurs and when knocking does not occur, the correlated values being derived from the output signal of the pressure sensor of the first means; and (c) third means for retarding an ignition advance angle according to the intensity of engine knocking measured by the second means.

• Assignee: Nissan Motor Co., Ltd., Kanagawa
• Patent Number(s): US 4777920
• OSTI ID: 6529379
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL
CONTROL SYSTEMS
ENGINES
HEAT ENGINES
IGNITION
IGNITION QUALITY
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
KNOCK CONTROL
MEASURING INSTRUMENTS
OPERATION
PRESSURE GAGES
PRESSURE MEASUREMENT
TIMING PROPERTIES