Loading patent…
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKenichi Yamaguchi, Masahiro Tawara
Estimating the term…
A belt-type continuously variable transmission changes winding radii of a belt that is wound around an input-side and an output-side pulley to shift speeds. The belt-type continuously variable transmission is mounted on a vehicle that switches between two-wheel drive is transmitted only to front wheels and four-wheel drive. An electronic control unit that controls the belt-type continuously variable transmisson adjusts the belt clamping pressure of each pulley as torque is distributed to the rear wheels, to suppress muffled noise due to resonance of vehicle components with belt span vibrations.
A control device for a belt-type continuously variable transmission that is mounted on a four-wheel drive vehicle, which variably distributes torque between front and rear wheels, and that changes a winding radii of a belt wound around an input-side pulley and an output-side pulley to shift speeds, the control device comprising:
A control method for a belt-type continuously variable transmission that is mounted on a four-wheel drive vehicle, which variably distributes torque between front and rear wheels, and that changes winding radii of a belt on two input-side and output-side pulleys to shift speeds, the belt being wound around the two pulleys,
Dependencies are inferred from the claim text.