VEHICLE POWERTRAIN MOUNTING SYSTEM AND METHOD OF DESIGNING SAME

A powertrain mounting system for a vehicle powertrain includes a first powertrain mount that exhibits a first gradual rate of change of static stiffness when under load. The mounting system also includes a second powertrain mount that exhibits a second gradual rate of change of static stiffness when...

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Bibliographische Detailangaben
Hauptverfasser:	WEIR, DANIEL F, JOMAA, SAM M
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 INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS TRAILERS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A powertrain mounting system for a vehicle powertrain includes a first powertrain mount that exhibits a first gradual rate of change of static stiffness when under load. The mounting system also includes a second powertrain mount that exhibits a second gradual rate of change of static stiffness when under load. The first gradual rate of change of static stiffness is related to the second gradual rate of change of static stiffness by a static equilibrium torque balance equation of respective displacements at the first and the second powertrain mounts. The static equilibrium torque balance equation is based in part on a spatial arrangement of the first and the second powertrain mounts relative to the powertrain. A method of designing the powertrain mounting system determines the first and second gradual rates of change of static stiffness under load to achieve efficient energy management.