| 摘要 |
PURPOSE: A height controlling device of a propeller shaft center bearing is provided to improve the NVH performance of a vehicle by corresponding to the mounting state change of the rear wheel differential and transmission. CONSTITUTION: A height controlling device of a propeller shaft center bearing comprises a center bearing, a sensor unit, a bearing guide unit, a vertical displacement forming unit and a controller(11). The center bearing supports a propeller shaft(1) to the car body. The sensor unit is installed in order to sense the separated distance in which an ahead propulsion shaft(5) of a center bearing front and a rear thrust shaft(7) of rearward are each separated to a respective car body(9). The bearing guide unit comprises in order to guide the up and down motion to the car body of the center bearing. The vertical displacement forming unit pressurizes the lower of the center bearing to the upper and controls height of upside and downside to the car body of the center bearing. The controller receives the signal of the sensor unit and controls a vertical displacement formation unit.
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