Patent ID: 8753249

Claim:
A control apparatus for an automatic transmission mechanism including: an oil pressure pump, that is driven by a drive source for driving a vehicle, for pressurizing hydraulic oil; a transmission that has a drive pulley, a driven pulley, and a belt wound around the drive pulley and the driven pulley; first oil pressure-supplying means for regulating an oil pressure generated by the oil pressure pump to a first command oil pressure, and supplying the oil pressure to a cylinder chamber of the drive pulley via a first oil passage; and second oil pressure-supplying means for regulating the oil pressure generated by the oil pressure pump to a second command oil pressure, and supplying the oil pressure to a cylinder chamber of the driven pulley via a second oil passage, the control apparatus being characterized by comprising: drive source start-detecting means for detecting beginning of a start of the drive source; driven oil pressure-detecting means for detecting an oil pressure supplied to the driven pulley; first command oil pressure-setting means for setting the first command oil pressure to a first predetermined oil pressure substantially equal to 0 when the beginning of the start of the drive source has been detected; second command oil pressure-setting means for setting the second command oil pressure to a second predetermined oil pressure higher than the first predetermined oil pressure when the beginning of the start of the drive source has been detected; and filling completion-determining means for determining completion of filling of the cylinder chamber of the driven pulley with the hydraulic oil, when the oil pressure detected by said driven oil pressure-detecting means has reached a predetermined threshold value, wherein said first command oil pressure-setting means increases the first command oil pressure after a time point when the completion of the filling of the cylinder chamber of the driven pulley has been determined.