| 摘要 |
PURPOSE:To obtain the optimum shift pattern in every range by providing a range control valve in an oil path for supplying governor pressure to a shift valve, which is adapted to change governor pressure by switching a range by a manual valve. CONSTITUTION:A spool 70a of a range control valve 70 is urged to the right by a spring 70b, governor pressure is applied to the right end of the spool through a line 120b, and further range control pressure is applied to a pressure receiving portion 70d through a line 121. The range control pressure is changed by switching a range by a manual valve. As the range control pressure becomes line pressure in D-range, and it becomes drain pressure in the first range, a shift pattern can be changed from the first speed to the second speed by D-range and the first range. |
