| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of solenoid valves by performing control to switch two shift valves by a common solenoid valve. SOLUTION: A main shift valve 9 is connected to an oil passage L2 communicated with a manual valve 8 and a low-speed shift valve unit composed of a 1-2 shift valve 10 and a high-speed shift valve unit composed of a 3-4 shift valve 11 and a 4-5 shift valve 12 are connected to the downstream side of the valve 9. Thus, by dividing a shift valve into two units, namely a low speed system and a high speed system, control is performed to switch the 1-2 shift valve 10 and the 4-5 shift valve 12 by a common solenoid valve 152 . |
