Control system for internal combustion engine

An electronic system which limits exhaust emissions from an automobile engine by selectively retarding the point of firing the spark plugs at selected speeds during acceleration and at different speeds during deceleration; said system including a capacitive discharge ignition system which is respons...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SWANSON, CALEB V, LANNING, WILLIAM C
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES LIGHTING MECHANICAL ENGINEERING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	An electronic system which limits exhaust emissions from an automobile engine by selectively retarding the point of firing the spark plugs at selected speeds during acceleration and at different speeds during deceleration; said system including a capacitive discharge ignition system which is responsive to an electronic system which will retard the point of firing the spark plugs a predetermined amount dependent upon the speed of the vehicle as above or below a predetermined speed. Said system also including an improved low cost tachometer for feeding to the system an analog output dependent upon the engine speed, which analog output is fed to a low rpm control level detector and a high rpm control level detector, and the outputs of said detectors are fed to a control logic which is connected to the vacuum advance of the engine to selectively disconnect the vacuum advance of the engine at certain speeds. Said electronic circuitry being connected such that the vacuum advance is disconnected and then reconnected at different speeds when the vehicle is operating in an acceleration mode than when the vehicle is operating in a deceleration mode.