| 摘要 |
PROBLEM TO BE SOLVED: To provide a power transmission device capable of holding engagement between a driving side element and a driven side element properly, and performing elastic power transmission between both elements.SOLUTION: A controller 11 of a power transmission device 1 sets a tolerance of a time-variant change ratio of drive force between elements which is transmitted between a driving side element 4 (elastic member) and a driven side element 5 so that the tolerance changes according to an observation value of an amount of elastic deformation of the elastic member (driving side element 4), and controls the time-variant change ratio of the drive force between elements so as to be limited in the set tolerance via an actuator 2. |
