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US 8,985,287 B2Granted
Device for actively influencing vibrations in a component
AssigneeRobert Bosch GmbH
InventorKarl Bendel
Life of this patent
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Abstract
A device for actively influencing vibrations in a component, in particular vibrations in a component of a motor vehicle such as engine vibrations, for example. The device includes a sensor for detecting the vibrations, an actuator which acts on the component, and a regulation and control unit in which actuating signals may be generated from the sensor signals in order to adjust the actuator. The actuator is designed as an electrically actuatable piezoelectric actuator.
Claims8
A system, comprising:
- a component;
- and
- a device for actively influencing vibrations in the component, comprising:
- a first sensor including a microphone;
- a second sensor including a piezoelectric sensor configured for detecting the vibrations;
- an electrically actuatable piezoelectric actuator configured for acting on the component;
- and
- a regulation and control unit in which actuating signals are generated from sensor signals of one of the first sensor and the second sensor in order to adjust the actuator;
- wherein the microphone, the piezoelectric sensor, and the actuator are embedded within a material of a wall of the component influenced by the vibrations.
6 more elements
Dependencies are inferred from the claim text.