| 摘要 |
<p>A hydraulic control circuit of a vehicular synchromesh transmission includes a linear solenoid valve (94) that supplies a hydraulic pressure to a shift cylinder (78) until one of a plurality of synchromesh clutches (48) is placed in a neutral condition, and shuts off the supply before a synchronizing operation is started, and an accumulator (100) provided in a first oil channel (98) between the linear solenoid valve (94) and the shift cylinder (78). The accumulator (100) stores a certain amount of hydraulic fluid while accumulating a hydraulic pressure, and functions as a hydraulic pressure source after the linear solenoid valve (94) is shut off. The hydraulic pressure supplied from the accumulator (100) after the shutoff is reduced in accordance with the amount of the hydraulic fluid supplied from the accumulator (100), and a hydraulic pressure of an appropriate level is generated to the shift cylinder (78) without delay when the synchronizing operation of the synchromesh clutch (48) is started.</p> |
