OIL PRESSURE CONTROL MECHANISM FOR AUTOMATIC TRANSMISSION

摘要

In the case of a vehicle for running on wasteland that includes an automatic transmission for performing speed change by connection/disconnection of an oil hydraulic clutch provided alongside each speed change gear or the like vehicles, at the time of use on a wild ground, it is impossible to step on the brake, depending on the posture of the driver, so that it may be impossible to achieve creep prevention with a creep preventive mechanism dependent on a brake signal. Therefore, a creep preventive mechanism independent from a brake signal is required. An oil pressure supply source for an oil hydraulic clutch is provided with a linear solenoid valve for supplying a working oil or interrupting the supply of the working oil, and the supply of the working oil to clutches is interrupted when the vehicle is stopped under an idling condition of an internal combustion engine.