CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE OF VEHICLE

PURPOSE: To improve exhaust gas characteristics by estimating the temperature of a catalyst means at restart after the stop state of an engine is continued for a prescribed term and changing a control parameter after restart based on the estimated catalyst temperature. CONSTITUTION: At the ignition...

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Bibliographische Detailangaben
Hauptverfasser:	TESHIROGI SATORU, IWATA YOICHI, YOKOO KENTARO, IIDA NAOKI, KATO AKIRA, HARA YOSHINAO, OKETANI RIICHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING 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 SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC 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:	PURPOSE: To improve exhaust gas characteristics by estimating the temperature of a catalyst means at restart after the stop state of an engine is continued for a prescribed term and changing a control parameter after restart based on the estimated catalyst temperature. CONSTITUTION: At the ignition switch on time (S11), it is judged whether just after on or not (S14), at the just after on time, a timer tSOSK is stopped and a three dimensional catalyst temperature TCAT is estimated by a table is response to the count value of the timer tSOAK and SOAK time (S15). Then, it is judged whether it is within the prescribed term after start or not (S16), at the time within the prescribed term, it is judged whether the value of the timer tSOAK is within the prescribed range (S17). At the time within the prescribed range, it is judged whether a catalyst temperature estimation value TCAT is lower than the prescribed temperature or not (S18), at the low time, the cold up soft of a transmission, the increase of the number of idle rotation at the increase of auxiliary air amount, the retard correction of ignition timing are carried out (S20). At the high time, an exhaust reflux amount is increased and the air fuel ratio control by O2 sensor is started (S21).