CONTROL METHOD OF SWITCHING ON/OFF FOUR WHEEL DRIVING GEAR FOR VEHICLE, PARTICULARLY TRACTOR,AND DRIVING GEAR ARRANGEMENT FOR EXECUTING THIS METHOD

PURPOSE: To provide a method for controlling engagement or disengagement of a four-wheel driver of a tractor for always engaging front wheels when a towing demand is existed and interrupting a torque transmission when a danger of a twist is existed. CONSTITUTION: A driver of steering wheels 3 which...

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Bibliographische Detailangaben
Hauptverfasser:	HANSU YURUGEN RANGEN, FURIIDORITSUHI HERUBERUGU, FUUBERUTO GAISUTOFU, KURAUSU KEMUPUFU
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 BRAKES CLUTCHES COUPLINGS FOR TRANSMITTING ROTATION ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING MOTOR VEHICLES PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRAILERS TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: To provide a method for controlling engagement or disengagement of a four-wheel driver of a tractor for always engaging front wheels when a towing demand is existed and interrupting a torque transmission when a danger of a twist is existed. CONSTITUTION: A driver of steering wheels 3 which are not always driven is branched from a driver of wheels 2 which are always driven by a driving system, and at least one changeover clutch 9 disposed in the system is engaged or disengaged depending upon the driving state. The engagement and the disengagement are conducted so that when an output bundle calculated from a torque direction and a rotating direction is larger than zero, the clutch 9 remains engaged. When the bundle becomes smaller than the zero, the clutch 9 is disengaged. As long as a rotational speed of the part to be clutched is larger than that of a driving clutch, the clutch 9 remains disengaged. When the driving clutch is rotated at higher rotational speed than that of the part to be clutched, the clutch 9 is engaged by starting from the disengaged state.