| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oil pressure generating device of an automatic transmission having the improved energy efficiency, and to provide a method of controlling the oil pressure generating device of an automatic transmission. <P>SOLUTION: The method of controlling the oil pressure generating device of an automatic transmission, including a first oil pump which generates an oil pressure necessary for shift transmission, a second oil pump which additionally generates a deficient oil pressure, an accumulator for storing an oil pressure generated more than necessary by the first oil pump and a control unit which controls the pumping of the second oil pump, includes: a step of actuating the first oil pump in an idle stop state; a step of predicting the completion time point in the idle stop state; a step of starting the second oil pump before a time set from the predicted completion time point; a step of actuating the second oil pump at the maximum set rotation speed; and a step of actuating the second oil pump at the target rotation speed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
