| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power transmission control device for enabling stable changeover control without generating gear noise even if front-stage-side operation is performed in the violation of conditions during changeover operation. <P>SOLUTION: The power transmission control device comprises a sub transmission 20 changeable between a High-mode and a Low-mode, a changeover command means for requesting the changeover, and an actuator unit 30 for starting the changeover operation when conditions preset as allowable conditions of the changeover of the sub transmission 20 are established after command operation is inputted. A transfer ECU 70 has a function of a first determining means for determining that the changeover conditions are established during a time before the actuator unit 30 completes releasing operation after starting changeover operation, and a function of a restoring means for restoring the sub transmission 20 into a state of starting the changeover operation when the changeover conditions are not established during a time before it completes the releasing operation after starting the changeover operation as a result of the determination. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
