| 摘要 |
Providing a vehicle drive device realizing preferred fuel efficiency while allowing a torsional vibration reduction device to produce a vibration suppressing effect during slip control of a clutch included in a fluid power transmission device. During slip control when a clutch 18 is put into slip engagement, a minimum value of differential rotation speed of the clutch 18 is set equal to or greater than zero while a minimum value of differential rotation speed is set less than zero between a first inertial body 100 acting as an input side inertial body in a damper mechanism 84 and a turbine impeller 14t and, therefore, torsional vibration input to the clutch 18 can be reduced by the damper mechanism 84 while a durability of a friction material 78 in the clutch 18 is improved, and the slip control by the clutch 18 and vibration suppression by the damper mechanism 84 can be achieved at the same time. |
