| 摘要 |
PROBLEM TO BE SOLVED: To simplify constitution, reduce shift shock and improve shift feeling at manual shifting by supplying the drive pressure supplied from a manual valve to a seventh friction element after absorbing the shock by an accumulator, when manual shifting is performed from the 4th speed of D range to 2 range. SOLUTION: This hydraulic control system of an automatic transmission for vehicle is provided with an oil pump 2, a pressure adjusting valve 8, a solenoid feed valve 16, a manual valve 22, a torque control adjusting valve 20, a control switch valve 26, a N-D control valve 28, a 1-2 speed shift valve 34, a 2-3 speed shift valve 36, a 3-4 speed shift valve 38, and a N-R control valve 48. |
