| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide the controller of a power transmission device of a vehicle for preventing the high revolution of rotary elements in a power transmission device for a vehicle in shift transition due to the large fluctuation of torque generated from an internal combustion engine in the controller of a power transmission device of a vehicle. <P>SOLUTION: When engine torque T<SB>E</SB>generated from an engine 8 connected to a transmission mechanism 10 is large, a down shift is performed by lower acceleration opening than when the engine torque is small, and torque generated form the engine 8 is shifted at a small shift point. That is, the torque is shifted at a shift point at which the increase of the torque is suppressed under the consideration of the engine torque T<SB>E</SB>generated from the engine 8 so that it is possible to prevent the high rotation of the rotating elements of the transmission mechanism 10 in down shift transition. Thus, it is possible to suppress the deterioration of the durability of the shift mechanism 10. <P>COPYRIGHT: (C)2009,JPO&INPIT |
