Active noise control roof panel dampening system
AssigneePanasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
InventorKARL CRESSMAN
Life of this patent
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Abstract
A noise dampening arrangement for a motor vehicle includes a mass coupled to a structural component of the motor vehicle. A sensor detects vibration of the structural component of the motor vehicle, and transmits a vibration signal indicative of the detected vibration. An electronic processor is communicatively coupled to the sensor, receives the vibration signal, and emits a vibration compensation signal dependent upon the vibration signal. An actuator is communicatively coupled to the electronic processor, receives the vibration compensation signal, and exerts a force on the mass dependent upon the vibration compensation signal such that the vibration of the structural component of the motor vehicle is reduced.
Claims20
A noise dampening arrangement for a motor vehicle, the arrangement comprising:
- a mass coupled to a structural component of the motor vehicle;
- a sensor configured to:
- detect vibration of the structural component of the motor vehicle;
- and
- transmit a vibration signal indicative of the detected vibration;
- an electronic processor communicatively coupled to the sensor and configured to:
- receive the vibration signal;
- and
- emit a vibration compensation signal dependent upon the vibration signal;
- and
- an actuator communicatively coupled to the electronic processor and configured to:
- receive the vibration compensation signal;
- and
- exert a force on the mass dependent upon the vibration compensation signal such that the vibration of the structural component of the motor vehicle is reduced.
A noise dampening method for a motor vehicle, the method comprising:
- coupling a mass to a structural component of the motor vehicle;
- detecting vibration of the structural component of the motor vehicle;
- transmitting a vibration signal indicative of the detected vibration;
- emitting a vibration compensation signal dependent upon the, vibration signal;
- and
- exerting a force on the mass dependent upon the vibration compensation signal such that the vibration of the structural component of the motor vehicle is reduced.
A noise dampening arrangement for a motor vehicle, the arrangement comprising:
- a mass dampener coupled to a structural component of the motor vehicle and configured to output a mass dampener signal;
- a sensor configured to:
- detect vibration of the structural component of the motor vehicle;
- and
- transmit a vibration signal indicative of the detected vibration;
- a response calculation device communicatively coupled to the sensor and to the mass dampener, the response calculation device being configured to:
- receive at least one input signal indicative of the vibration signal and the mass dampener signal;
- and
- emit a vibration compensation signal dependent upon the input signal;
- and
- an amplifier communicatively coupled to the response calculation device and configured to:
- receive the vibration compensation signal;
- amplify the vibration compensation signal;
- and
- apply the amplified vibration compensation signal to the mass dampener such that the vibration of the structural component of the motor vehicle is reduced.
Dependencies are inferred from the claim text.