| 摘要 |
A device for controlling active vibration of a tire is provided to improve riding comfort by transmitting vibration from the tire to a first case and then changing phase of the vibration using an actuator at 180° for eliminating vibration in a rim. A device for controlling active vibration of a tire has an active vibration control unit having a first case(20), a vibration sensor(40), a second case(30), an actuator(50), and a control unit(60). The first case is installed along longitudinal direction of an inner surface of a rim(10), and has a space unit inside. The vibration sensor is installed in the first case to sense vibration. The second case is installed in the first case, and has a space unit inside. The actuator is integrally installed with space unit of the second case, and vibrates the second case. The control unit controls operation of the actuator in accordance with measured value of the vibration sensor. At least one pair of active vibration control units symmetrically placed around a rotation center of the rim have a rotary balance. The first case has a first horizontal surface(22) and a second horizontal surface(24) perpendicularly crossed each other. The second case having the actuator is installed on one of the first and the second horizontal surfaces.
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