| 摘要 |
<P>PROBLEM TO BE SOLVED: To adequately perform motor cooling, only when necessary. <P>SOLUTION: A hydraulic control device of a drive device for a vehicle, including a motor 20 for driving drive wheels, and a hydraulic connection/disconnection means 24 for connecting/disconnecting the motor 20 to/from the drive wheels, includes: an electric oil pump 50; an oil path 66 for controlling the connection/disconnection that supplies oil pressure for connection to the connection/disconnection means 24; an oil path 68 for cooling a motor that supplies working oil for cooling to the motor 20; and a means CVU for controlling and supplying working oil, disposed between a main oil path 62 on the discharge side of the electric oil pump 50 and the oil path 66 that controls connection/disconnection and the oil path 68 for cooling the motor, for blocking the main oil path 62 and the oil path 68 for cooling the motor and communicating the main oil path 62 and the oil path 66 that control connection/disconnection in a state where the main oil path 62 and the oil path 66 that control connection/disconnection are blocked, and for communicating the main oil path 62 and the oil path 68 for cooling the motor, in a state where the oil pressure for connection is supplied to the connection/disconnection means 24. <P>COPYRIGHT: (C)2010,JPO&INPIT |
