| 摘要 |
A power transmission device includes a planetary gear set and a first and a second connecting mechanism. The planetary gear set receives power from a power source and outputs it to a power-driven member. The first connecting mechanism connects a first and a second rotor of the planetary gear set through a separate path. The second connecting mechanism connects the second rotor and a third rotor of the planetary gear set through a separate path. The controller is operable selectively in a first operation mode in which the second connecting mechanism is engaged, while the first connecting mechanism is disengaged and a second operation mode in which the second connecting mechanism is engaged, while the first connecting mechanism is disengaged. This ensures suitable mechanical connections among the power source, the power-driven member, and the power split mechanism which match with an operating condition of the power transmission device.
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