| 摘要 |
PURPOSE:To attain the stable high-speed travel of a vehicle by automatically locking a differential device at the time of a high-speed travel with a relatively simple structure. CONSTITUTION:A sleeve is spline-fitted slidably in the axial direction at one of the drive shafts of a rear axle 14, the sleeve is formed demountably with one side differential case, and a driving means 37 moves the sleeve in the axial direction of one drive shaft. A steering sensor 47 detects the steering angle of a steering wheel 46, and a vehicle speed sensor 48 detects the vehicle speed. When the vehicle speed sensor 48 detects the vehicle speed at a preset value or above and the steering sensor 47 detects the steering angle of the steering wheel 46 below a preset value, a controller 49 hooks the sleeve on one side differential case via the driving means 37.
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