Claims
- 1. A vehicle air supply system comprising:
a duct for supplying air to a vehicle engine; a resonator volume communicating with said duct, said resonator volume being designed to attenuate a noise emanating through said duct from a vehicle engine; and an active noise control system including a controller and a speaker, said controller driving said speaker to attenuate engine noise over a wide band of frequencies.
- 2. A vehicle air supply system as recited in claim 1, wherein said speaker is mounted within said resonator volume.
- 3. An air supply system as set forth in claim 1, wherein said resonator is a helmholtz resonator having a narrow neck communicating said duct to an enlarged volume.
- 4. A vehicle air supply system comprising:
a duct for supplying air to a vehicle engine; a resonator volume communicating with said duct, said resonator volume being designed to attenuate a noise emanating through said duct from a vehicle engine; and an active noise control system including a controller and a speaker, said controller driving said speaker to attenuate engine noise over a wide band of frequencies, said duct communicating an air cleaner to said vehicle engine through a throttle.
- 5. A system as set forth in claim 4, wherein said helmholtz resonator is mounted between said air cleaner and said throttle body.
- 6. A vehicle air supply system as recited in claim 4, wherein said speaker is mounted within said resonator volume.
- 7. A vehicle air supply system comprising:
a duct for supplying air to a vehicle engine; a helmholtz resonator having a narrow neck communicating said duct to an enlarged volume, said volume being designed to attenuate a noise passing through said duct from a vehicle engine; an active noise control system including a controller and a speaker, said controller driving said speaker to attenuate engine noise over a wide band of frequencies; said speaker being mounted within said resonator volume; and an air cleaner mounted to provide air to said duct, and a throttle body, said resonator communicating with said duct intermediate said air cleaner and said throttle body.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to U.S. Provisional Patent Application Serial No. 60/367,020 filed on Mar. 22, 2002.
Provisional Applications (1)
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Number |
Date |
Country |
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60367020 |
Mar 2002 |
US |