| 摘要 |
The present invention relates to a manual valve of a hydraulic control system of an automatic transmission and, more specifically, to a manual valve of a hydraulic control system for an automatic transmission which can prevent gearshift impact and can improve response at the same time by controlling release pressure during gearshift. For the above of the present invention, a manual valve moves back and forth according gearshift operation by being connected to a gear lever. An operation fluid path supplies operation fluid to one operation element to realize a transmission range of the automatic transmission by passing through the manual valve. A check valve has a branch fluid path branched from the operation fluid path, and opens and closes the flow of the operation fluid selectively supplied through the branch fluid path. A pressure control valve comprises a supply fluid path to supply the operation fluid for the manual valve, and controls the pressure of the supply fluid path. And a bypass fluid path is formed so that the operation fluid passing through the check valve meets the supply fluid path and then returns to the pressure control valve. |
