VARIABLE VALVE-ACTUATING DEVICE, CONTROL METHOD FOR THE DEVICE, AND VEHICLE CARRYING THE DEVICE

In a hybrid vehicle 20, on a start of an engine 22, when an engine water temperature Tw is low and there is a need of advancing open and close timings of an intake valve 128 from their most delayed positions, electric power is supplied to a VVT motor 133 either via a first route R1 or via a second r...

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Bibliographische Detailangaben
1. Verfasser:	ICHIMOTO, Kazuhiro
Format:	Patent
Sprache:	eng ; fre ; ger
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 COMBUSTION ENGINES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES CONTROLLING COMBUSTION ENGINES ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MECHANICAL ENGINEERING PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	In a hybrid vehicle 20, on a start of an engine 22, when an engine water temperature Tw is low and there is a need of advancing open and close timings of an intake valve 128 from their most delayed positions, electric power is supplied to a VVT motor 133 either via a first route R1 or via a second route R2. Even when the state of charge of a low voltage battery 53 is very low and insufficient, the required electric power is supplied from a DC-DC converter 55 to the VVT motor 133 without passing through the low voltage battery 53. On the start of the engine 22, such start control ensures an adequate change of the open and close timings of the intake valve 128 set in the stop state of the engine 22.