VEHICLE DRIVING DEVICE

A vehicle driving device includes: an engine; a brake booster including a negative pressure chamber, the brake booster amplifying a brake pressure by a negative pressure determined corresponding to a pressure inside the negative pressure chamber; a power transmission clutch disposed between the engi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YANAGIDA Tomoaki, ITO Yoshio
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL 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 BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES 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 INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES 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 VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A vehicle driving device includes: an engine; a brake booster including a negative pressure chamber, the brake booster amplifying a brake pressure by a negative pressure determined corresponding to a pressure inside the negative pressure chamber; a power transmission clutch disposed between the engine and a driving wheel; and a negative pressure pump configured to drive by using at least one of a torque from the engine and a torque from the driving wheel, the negative pressure pump being configured to vary the negative pressure inside the negative pressure chamber. In the vehicle driving device included in a vehicle that performs freewheeling in a state where the power transmission clutch is released and the engine is stopped, the negative pressure pump includes a control chamber configured to reduce a capacity of the negative pressure pump as a magnitude of the negative pressure inside the negative pressure chamber increases.