| 摘要 |
A manual valve of a hydraulic pressure control system for an automatic transmission includes: a valve body that includes an input port and two reverse range pressure supply ports for supplying a hydraulic pressure from the input port to two friction elements; and a valve spool that is disposed in the valve body and that is connected to a select lever, wherein at least one exhaust passage is formed on a land of the valve spool that opens/closes the two reverse range pressure supply ports of the valve body.
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