CONTROL DEVICE AND CONTROL METHOD FOR BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION

• Main Authors: YAMAGUCHI, KENICHI, TAWARA, MASAHIRO
• Format: Patent
• Language: English; French
• Published: 08.10.2009
• Subjects: 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; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; 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; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

A control device (23) for a belt-type continuously variable transmission (12) that is mounted on a four-wheel drive vehicle, which variably distributes torque between front (16) and rear (21) wheels, and that changes winding radii of a belt (15) wound around an input-side pulley (13) and an output-side pulley (14) to shift speeds, the control device (23) comprising a clamping pressure adjusting device that adjusts belt clamping pressures of the pulleys (13, 14) in accordance with a torque distribution between the front (16) and rear (21) wheels. L'invention porte sur un dispositif de commande (23) pour une transmission à variation continue de type à courroie (12) qui est monté sur un véhicule à quatre roues motrices, qui distribue de façon variable un couple entre les roues avant (16) et arrière (21), et qui change les rayons d'enroulement d'une courroie (15) enroulée autour d'une poulie côté entrée (13) et d'une poulie côté sortie (14) pour changer les vitesses, le dispositif de commande (23) comprenant un dispositif d'ajustement de pression de serrage qui ajuste des pressions de serrage de courroie des poulies (13, 14) conformément à une distribution de couple entre les roues avant (16) et arrière (21).