| 摘要 |
PROBLEM TO BE SOLVED: To provide a device to perform starting assist control, rotation control to improve rotation performance by positively producing differential rotation between right and left wheels, and differential limit control to regulate differential rotation between the right and left wheels. SOLUTION: A coupling device between the right and left wheels of a vehicle comprises a first rotation element 8a; a differential device 8 having second and third rotation elements 8b and 8c to reverse when the other rotates forward based on the first rotation element 8a; and a drive source 9 coupled to the first rotation element 8a. One, for example, the third rotation element 8c, of the second and third rotation elements is coupled to one rear wheel 5R through a first transmission system 10 and the second rotation element 8b is coupled to the other rear wheel 5L through second and third transmission systems 11 and 12, selectively established through a switching means 13. The gear ratios of the first and second transmission systems 10 and 11 are set to the same as each other, and the gear ratio of the third transmission system 12 is set in such a manner that a direction is reverse to the gear ratio and absolute values are equal to each other. |
