| 摘要 |
PURPOSE:To prevent a shock of speed change by disposing a relief means for controlling a line pressure corresponding to a signal pressure due to a boost pressure at the downstream of a throttle valve K. CONSTITUTION:A signal pressure generating means L for generating a signal pressure due to a boost pressure at the downstream of a throttle valve K in an intake passage C of an engine 1 and a line pressure generating means M for generating a line pressure due to a signal pressure generated by the signal pressure generating means L are disposed. The line pressure is supplied to an actuator I through a valve means J and a relief means N for preventing the signal pressure generated by the signal pressure generating means L from being increased over a fixed value is disposed. Thereby, the remarkable increase of the line pressure can be prevented at the time of the kick down operation and a shock of speed change is also reduced. |
