| 摘要 |
PURPOSE:To provide optimal adjustment of reversing timing at the time of gear change, by controlling, on the base of on/off control program data, the on/off duty of a solenoid valve for adjusting pressure in a working oil chamber of an impact eliminating valve. CONSTITUTION:A hydraulic circuit for controlling the automatic transmission gear is equipped with 1-2 shift valve, 2-3 shift valve, 3-4 shift valve, 2-3 solenoid valve 310, 1-2 and 3-4 solenoid valve 320 and solenoid valve 300 for adjusting pressure in an oil chamber of an impact eliminating valve, each solenoid valve being controlled by an electronic controller 400. Being equipped with CPU401, ROM402, RAM403, etc, the controller 400 controls the on/off duty of the pressure regulating solenoid valve 300 at the time of gear change, in accordance with the repetition type on/off control program data fixed in the ROM402. |
