Back to results
US 10,380,988 B1Granted
Body mounted vehicle noise cancellation system
AssigneeGM Global Technology Operations LLC
InventorsFrank C. Valeri, Scott M. Reilly, Eric J. Defenderfer
Life of this patent
Estimating the term…
Abstract
A noise cancellation system for a vehicle includes an excitation device mountable to a vehicle body component. The excitation device is operable to produce a low frequency response of the vehicle body component.
Claims12
A noise cancellation system for a vehicle comprising:
- a first excitation device and a second excitation device mountable to a vehicle body component, the first excitation device and the second excitation device being operable to produce a low frequency response of the vehicle body component, wherein the first excitation device is excitable at a first frequency at a first phase and the second excitation device is excitable at the first frequency at a second phase that is distinct from the first phase.
A vehicle comprising:
- a body component and one or more body panels;
- and
- a noise cancellation system including a first excitation device and a second excitation device mounted to at least one of the vehicle body component and the one or more body panels, the first excitation device and the second excitation device being operable to produce a low frequency response of the one of the vehicle body component and the one or more body panels, wherein the first excitation device is excitable at a first frequency at a first phase and the second excitation device isexcitable at the first frequency at a second phase that is distinct from the first phase.
A method of cancelling noise in a vehicle comprising:
- activating a noise cancellation system;
- determining that a cancellation noise is needed below a predetermined frequency threshold;
- and
- activating a first excitation device and a second excitation device to excite at least one of a vehicle body component and one or more body panels to produce a cancellation noise having a frequency below the predetermined threshold, the first excitation device operating to produce a first cancellation noise having a first frequency at a first phase and the second excitation device operating to produce a second cancellation noise having a second frequency at a second phase that is distinct from the first phase.
1 more element
Dependencies are inferred from the claim text.