| 摘要 |
A starting clutch control system for a continuous variable transmission is disclosed, in which the smooth engagement in the starting clutch incorporated with the continuous variable transmission is allowed by controlling the engaging pressure exerted on the starting clutch in accordance with a torque transmitted through the continuous variable transmission. A desired value of torque to be transmitted through the starting clutch is set according to the vehicle running conditions. An actual torque transmitted to the starting clutch from the toroidal continuously-variable transmission is measured in terms of a pressure difference between the pressures developed in the cylinders of the hydraulic actuator to drive a trunnion. An engaging-pressure control valve regulates the engaging pressure exerted on the starting clutch, depending on a deviation of the actual transmitted-torque torque toroidal from the desired transmitted torque, and thereby making the actual transmitted-torque agree with the desired transmitted-torque in a feedback way.
|
