| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To appropriately regulate fastening pressures of a low-speed clutch 7 and high-speed clutch 8 in accordance with an operating condition. <P>SOLUTION: Pressurized oil is fed to respective hydraulic chambers 52a, 52b of a low-speed clutch 7 and high-speed clutch 8 through a system separate from a primary line 50 for introducing the pressurized oil to a hydraulic chamber 51 of a pressing device 14. In this case, oil pressure introduced to the low-speed clutch 7 and high-speed clutch 8 is adjusted by PWM controlling respective solenoid valves 45, 46 for the low-speed clutch 7 and high-speed clutch 8 on the basis of a passing torque (differential pressure corresponding to a passing torque) of a toroidal continuously variable transmission and output torque (accelerator operation amount corresponding to output torque) of an engine connected with the toroidal continuously variable transmission. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
