Spark ignition timing control system for internal combustion engine with feature of suppression of jerking during engine acceleration
This patent describes a spark ignition timing control system for an internal combustion engine, it comprises: sensor means monitoring preselected parameters for producing a sensor signal; first means for deriving a spark ignition timing on the basis of data contained in the sensor signal; second means for detecting an engine acceleration demand for producing an accelerating condition indicative signal; and third means, responsive to the accelerating condition indicative signal, for modifying the spark ignition timing derived by the first means after expiration of a first predetermined period of time of occurence of the accelerating condition indicative signal, in such a manner that the spark ignition timing is advanced and retarded for suppressing cycle-to-cycle fluctuation of engine speed and for smoothly increasing engine speed.
- Assignee:
- Japan Electronic Control Systems Co., Limited, Isezaki
- Patent Number(s):
- US 4844026
- OSTI ID:
- 5652537
- Resource Relation:
- Patent File Date: 18 Mar 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
SPARK IGNITION ENGINES
COMPUTERIZED CONTROL SYSTEMS
DAMPING
MECHANICAL VIBRATIONS
MONITORS
TIMING PROPERTIES
CONTROL SYSTEMS
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
330101* - Internal Combustion Engines- Spark-Ignition
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)