Patent ID: 7445572

Claim:
A hydraulic pressure control apparatus for a continuously variable transmission, comprising: a torque converter; an engine associated with the continuously variable transmission; an oil pump driven by means of the engine; a line pressure control valve configured to develop and control a line pressure of the continuously variable transmission with a working oil supplied from the oil pump as an original pressure; and a line pressure control section configured to command a line pressure command pressure to develop the line pressure at the line pressure control valve to the line pressure control valve, a revolution from the engine being inputted into the continuously variable transmission via the torque converter, the revolution from the engine shifted by the continuously variable transmission being transmitted to driven wheels, the oil pump being arranged to be spaced apart from a principal axis of the transmission, a first sprocket revolved by means of the engine, a second sprocket linked via a chain to the first sprocket, and a revolution axle of the oil pump being coupled together, the revolution of the engine causing the oil pump to be driven, and the line pressure control section controlling the line pressure command pressure in such a manner that a rise rate of the line pressure command pressure is limited to a value smaller than a preset value when a shift range of the continuously variable transmission is transferred from a neutral range to a running range.