| 摘要 |
A driving power distribution device (26) includes a propeller shaft (24) that transmits the driving power generated by an engine (12), a differential device (38) having a planetary gear device (46) that is provided concentrically with the axial center of rotation of the propeller shaft (24), and a hydraulic motor (32) fixed to the propeller shaft (24). The ring gear (R) of the planetary gear device (46) is coupled to the propeller shaft (24). The carrier (CA) is connected to a right rear wheel (3Or). The sun gear (S) is connected to a left rear wheel (301). Inner pinions (PIN) of the planetary gear device (46) are driven by the hydraulic motor (32). Therefore, while the driving power generated by the engine (12) is being distributed to the right and left rear wheels (30), a control of generating a desired torque difference or restricting the differential motion can be performed. Also, the actuator torque capacity can be reduced, so that size reduction of the device is made possible. |
