Oblon, Fisher, Spivak, McClelland & Maier
Apparatus for controlling line pressure used in V-belt type continuously variable transmission for automobile
 A continuously variable transmission (CVT) has input and output pulleys interconnected by a V-belt. The output pulley is actuated by a line pressure. A throttle pressure is increased as the position of an intake throttle valve arranged in an intake path is increased. A transmission-ratio pressure is decreased as the position of the intake throttle valve is increased. The transmission-ratio pressure is decreased in the region of smaller openings of the intake throttle valve more gently than in the region of larger ones. The line pressure is produced in relation to the throttle pressure and the transmission-ratio pressure. 
Toyota Jidosha Kabushiki Kaisha
B F B B F
B60W F16H B60W B60W F16H
inventional inventional inventional inventional inventional
Mitsuru Nobuyuki Mitsuhiko Hiroshi
Takada Kato Okada Itoh