| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent oil discharged from an accumulator from flowing back to a strainer in a hydraulic circuit in which a hydraulic pressure is temporarily held in the accumulator.SOLUTION: In an idling stop state, a solenoid valve 16 is closed to hold a hydraulic pressure of an accumulator 3. When a vehicle restarts, the solenoid valve 16 is open and a discharge pressure of the accumulator 3 acts as a D range pressure via changeover valves 17 and 19. At this time, a check valve 13 prevents the discharge pressure of the accumulator 3 from acting on a sub-strainer 12.</p> |
