| 摘要 |
PROBLEM TO BE SOLVED: To provide a simply-structured power transmission device that can improve an assist region of a vehicle speed while preventing increase in size of the device.SOLUTION: A power transmission device 5 to be used for an auxiliary driving system 5 for driving a rear wheel side separated from a main driving system 3 for driving a front wheel side includes: two electric motors 7, 9 having the same capacity; a speed reducing mechanism 11 for reducing drive speed output from the two electric motors 7, 9; a distribution mechanism 13 into which the drive force reduced by the speed reducing mechanism 11 is distributed; and a clutch mechanism 23 provided between the electric motors 7, 9 and output shafts 19, 21. |
