Engine valve drive control apparatus and method

A drive control apparatus and a control method are provided for controlling driving of an engine valve (10) of an internal combustion engine, utilizing an electromagnetic force generated by an electromagnet or electromagnets (61, 62). A magnitude of an external force applied to the engine valve is e...

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Bibliographische Detailangaben
1. Verfasser:	FUWA, TOSHIO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS COMBUSTION ENGINES CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING CONTROLLING COMBUSTION ENGINES CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES DEVICES FOR VENTING OR AERATING ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING STEAM ENGINES TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A drive control apparatus and a control method are provided for controlling driving of an engine valve (10) of an internal combustion engine, utilizing an electromagnetic force generated by an electromagnet or electromagnets (61, 62). A magnitude of an external force applied to the engine valve is estimated, and a target operating state of the engine valve is set in view of the estimated magnitude of the external force. Then, a current applied to the electromagnet(s) is controlled in accordance with an actual operating state and the target operating state of the engine valve, so that the actual operating state substantially coincides with the target operating state.