| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the number of components without providing a solenoid valve exclusive for changing the discharge amount of an oil pump. <P>SOLUTION: A hydraulic control circuit consists of the oil pump for outputting hydraulic pressure from a first port and a second port, a lock-up control valve 2400 for selecting the condition of supplying secondary pressure to the engagement side oil chamber of a torque converter 300 or the condition of supplying it to the disengagement side oil chamber thereof depending on hydraulic pressure to be supplied from a first solenoid valve 2500, a garage shift control valve 2700 for holding a hydraulic pressure supply source when the hydraulic pressure is supplied from the first solenoid valve 2500, and a port selector valve 2900 for shutting off the first port of the oil pump 310 from a line pressure oil path 2002 when hydraulic pressure is supplied from both the first solenoid valve 2500 and a second solenoid valve 2800. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
