Oil pressure controller for automatic transmission

An oil pressure controller for an automatic transmission, the oil pressure controller producing a pre-charge shelf pressure supplied to a starter clutch by rapidly decreasing a command hydraulic pressure to the starter clutch after temporarily rapidly increasing the command hydraulic pressure and also producing a capacity adjustment pressure of the starter clutch by gradually increasing the command hydraulic pressure after decreasing the pre-charge shelf pressure when a selecting operation is made from a neutral range to a drive range, the oil pressure controller comprising:

• a brake state detecting unit that detects a brake-operating/nonoperating state of a vehicle mounting the automatic transmission, and
• the command hydraulic pressure in the brake-nonoperating state being set to be higher than the command hydraulic pressure in the brake-operating state, and
• when a brake is changed from the brake-operating state to the brake-nonoperating state during the progress of production of the capacity adjustment pressure on the basis of the selecting operation from the neutral range to the drive range, the capacity adjustment pressure in the brake-nonoperating state being produced while gradually increasing the capacity adjustment pressure in the brake-operating state.