Device and method for reducing noise in an interior of a vehicle
AssigneeZF Friedrichshafen AG
InventorsLukas Niedermaier, Phil Karaman
Life of this patent
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Abstract
A device for reducing noise in an interior space of a vehicle is provided. The vehicle includes a body having the interior space, at least one tire, and one wheel rim associated with the tire. The tire and the wheel rim are mounted onto a suspension strut, and the suspension strut is mounted onto the body. The device is arranged outside the interior space of the vehicle. The device includes a sound determination unit and a sound reduction unit. The sound determination unit includes a sensor configured for determining structure-borne noise. The sound reduction unit is configured for generating a vibration.
Claims11
A device (1) for reducing noise in an interior space (18) of a vehicle (23) that includes a body (17) with the interior space (18), a tire, and a wheel rim, the tire and the wheel rim mounted onto a suspension strut that is mounted onto the body, the device (1) being arranged outside the interior space (18) of the vehicle (23), the device comprising:
- a sound determination unit (20), the sound determination unit (20) comprising a sensor (3) configured for determining structure-borne noise;
- and
- a sound reduction unit (21), the sound reduction unit (21) being configured for generating a vibration, the sound reduction unit (21) being at least partially on the suspension strut of the vehicle (23) such that the vibration is transmitted to the suspension strut and attenuates the structure-borne noise.
A method for reducing noise, comprising:
- detecting a structure-borne noise in an interior space (18) of a body (17) of a vehicle (23) via a sensor (3) of a sound determination unit (20) arranged outside the interior space (18) of the vehicle (23), the vehicle (23) further including a tire and a wheel rim, the tire and the wheel rim being mounted onto a suspension strut that is mounted onto the body;
- and
- generating an anti-noise with a sound reduction unit (21) based at least in part on the structure-borne noise detected by the sound determination unit (20), the sound reduction unit (21) being arranged outside the interior space (18) of the vehicle (23) and at least partially on the suspension strut of the vehicle (23) such that the anti-noise is transmitted to the suspension strut and attenuates the structure-borne noise.
Dependencies are inferred from the claim text.