| 摘要 |
An electric force transmission device employs a differential device, having at least three rotating members and having two degrees of freedom that, when rotating states of two of the rotating members are determined, a rotating state of the other is determined, and in which differential device an output to a drive system is connected to the rotating member located on an inside on an alignment chart among the rotating members, two motor generators are coupled to the rotating members located on both sides of the rotating member related to the output on the alignment chart, and the drive system is driven by only a power from the motor generators. The electric force transmission device is configured so that, when the driving achieved by only the power from the motor generators is equivalent to driving started from a state of an output rotational speed of zero, before the driving is started, the two motor generators are rotated oppositely to each other, while keeping the state of the output rotational speed of zero.
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