| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress the occurrence of a slip due to insufficient engagement pressure of a hydraulic type engagement device when a switching valve switches to a first oil passage due to abnormality of a solenoid valve for switching the oil passages of the switching valve, in a hydraulic control device of a continuously variable transmission equipped with the switching valve for switching the first oil passage for supplying engagement transient oil pressure to the hydraulic type engagement device and a second oil passage for supplying predetermined oil pressure for holding a complete engaged state of the hydraulic type engagement device. <P>SOLUTION: In this hydraulic control device, control oil pressure P<SB>SLT</SB>is regulated in a linear solenoid valve SLT by a slip-time pressure regulating control means 168 based on an engine torque T<SB>E</SB>when the engaged engagement device is in a predetermined slip state even when a clutch apply control valve 112 is in an abnormal switching state in which it is switched to a first position at a normal time after garage shift. Therefore, insufficient engagement pressure of a forward clutch C1 or insufficient engagement pressure of a reverse brake B1 due to output oil pressure P<SB>LM2</SB>not being supplied is suppressed, and the occurrence of a slip of the engagement device is suppressed. <P>COPYRIGHT: (C)2007,JPO&INPIT |
