METHOD AND APPARATUS FOR DISCRETE CYLINDER ADAPTIVE TYPE LAMBDA CONTROL IN ENGINE HAVING VARIABLE-VALVE CONTROL FUNCTION

PURPOSE: To attempt optimization of a lambda control by solving the temperature characters of adjustment properties based on detecting adaptive value of different engine temperature, or estimating the adaptive value. CONSTITUTION: An apparatus 12 for measuring engine temperature, an apparatus 14 for...

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Hauptverfasser:	HERUMUUTO RENBORUTO, HERUMAN GESURAA, KURISUCHIYAN KURINKE
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL 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 LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: To attempt optimization of a lambda control by solving the temperature characters of adjustment properties based on detecting adaptive value of different engine temperature, or estimating the adaptive value. CONSTITUTION: An apparatus 12 for measuring engine temperature, an apparatus 14 for detecting if a lambda control is enabled, an adaptive apparatus 15, and a memory/extrapolation apparatus 16 are provided. When a lambda control is enabled, an adaptive control is conducted by the adaptive apparatus 15, adaptive values of each cylinder relative to at least two engine temperatures -MOT are detected, at least two values representing engine temperature-depending properties of the adaptive values are derived from the detected adaptive values for each cylinder, and are memorized by the memory/extrapolation apparatus 16. Furthermore, actual adaptive values of each cylinder are estimated from the actual engine temperature and at least the two values representing the temperature-depending properties of the adaptive values, and are used for the adaptive lambda control.