| 摘要 |
<p>The planetary differential assembly can split driving torque generated by an engine of a vehicle into two parts at an appropriate ratio to realize an optimum driving condition of the vehicle in traveling even when one of driving wheels of the vehicle loses traction on a bad-condition road. The above appropriate splitting of the driving torque is accomplished by applying a braking torque to each of component gears of a planetary gear set of the assembly. Such braking torque is produced: by reducing at least one of backlashes between these component gears to a possible minimum amount; and/or by roughing an outer peripheral surface of each of pins (13, 16) on which the components gears (10) are rotatably supported, respectively; and/or by roughing an inner peripheral surface of each of central through-holes of the component gears, through which surface each of the gears is brought into a slidable contact with each of the pins. <IMAGE></p> |
