| 摘要 |
PURPOSE:To exactly reduce speed-changing shocks by applying a pressure oil to the cutback valve prior to 1-2 shift valve during the 1-2 shift-up period. CONSTITUTION:The first pilot line L1 is divided into the first pilot line L'1 and branched first pilot line L1b in the downstream of 1-2 shift solenoid valve SL1. The first pilot line L'1 is connected to a 1-2 shift valve 110 through the second flow rate control valve 161, and the pilot line L1b is connected to the pilot chamber of the cutback valve 115 to work a pressure governing valve 102 toward a decompression direction through the first flow rate control valve 160. Since the pressure to the fluid type actuator can be cutback prior to 1-2 shift- up, speed-changing shocks can be exactly reduced. |
