AIR/FUEL RATIO CONTROLLER OF HYBRID VEHICLE

PROBLEM TO BE SOLVED: To provide an air/fuel ratio controller of a hybrid vehicle that can improve restartability and drivability of an engine.SOLUTION: There is provided an air/fuel ratio controller of a hybrid vehicle that includes an internal combustion engine and a rotary electric machine as pow...

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Bibliographische Detailangaben
1. Verfasser:	MAMADA YUSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES 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 INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an air/fuel ratio controller of a hybrid vehicle that can improve restartability and drivability of an engine.SOLUTION: There is provided an air/fuel ratio controller of a hybrid vehicle that includes an internal combustion engine and a rotary electric machine as power sources, and starts the internal combustion engine when a start condition is met and intermittently stops the internal combustion engine when an intermittent stop condition is met, the air/fuel ratio controller changes modes of control over the internal combustion engine at an intermittent stop (steps S5, S7, and S8) so as to optimize an air/fuel ratio when the internal combustion engine is started next time according to a difference between a richest value of an air/fuel ratio waveform at the start of the internal combustion engine and a preset reference richest value of the air/fuel ratio waveform (steps S4, S6).