System and method for controlling vehicle noise

A noise and controller technology, applied in vehicle components, active noise control, sound-generating equipment, etc., to solve problems such as ineffective removal of low-frequency noise, artificial or unnatural noise, etc.

Active Publication Date: 2016-03-02
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when a sound output device such as a speaker is used to reduce noise inside a car, the resulting sound may feel artificial or unnatural to the user.
In addition, active noise control techniques using opposite-phase signals output from audio speakers have issues including ineffective removal of low-frequency noise, such as the roar of an engine

Method used

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  • System and method for controlling vehicle noise
  • System and method for controlling vehicle noise
  • System and method for controlling vehicle noise

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Embodiment Construction

[0021] It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein includes motor vehicles in general, for example, passenger vehicles including sport utility vehicles (SUVs), buses, trucks, commercial vehicles of all kinds, including various boats and watercraft of ships, aircraft, etc., and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen vehicles, and other alternative fuel vehicles (eg, fuels derived from sources other than petroleum). As referred to herein, a hybrid vehicle is a vehicle that has two or more sources of power, for example, a vehicle that has gasoline power and electric power.

[0022] Although the exemplary embodiment is described as using a plurality of units to implement the exemplary operations, it is understood that the exemplary operations may also be implemented by one or more modules. Furthermore, it will be understood that the term controller refers to a hardware device ...

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Abstract

A noise control system and a method are provided. The method includes receiving, by a controller, a reference signal in response to a noise and an error signal that corresponds to residual noise. A control signal is generated for cancelling the noise based on the reference signal. In addition, the controller outputs a vibration according to the control signal to generate a cancellation signal for cancelling the noise. A phase delay of the reference signal is compensated for by the controller and updates a filter value of the adaptive filter based on the reference signal passing through the path compensation filter and the error signal.

Description

[0001] Cross References to Related Applications [0002] Pursuant to 35 U.S.C. §119(a), this application claims the benefit of Korean Patent Application No. 10-2014-0103941 filed on Aug. 11, 2014, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to systems and methods for controlling noise, and more particularly, to systems and methods for actively controlling noise that reduce vehicle interior noise. Background technique [0004] Generally, a passive method using a sound absorbing material, a sound insulating material, or the like is used as a method of reducing noise inside a vehicle. However, this passive noise reduction method is limited. Recently, an active noise control technique has been developed that reduces noise by using a sound output device such as an audio speaker to generate a signal having an opposite phase to the noise. Various noises may be generated during driving, including noise ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208
CPCG10K2210/1282G10K2210/1291G10K11/17883G10K11/1785G10K11/17855G10K11/17823G10K11/17825G10K11/17817G10K11/17854G10K11/175B60R11/02G10K11/16H03H21/00
Inventor 张琼镇
Owner HYUNDAI MOTOR CO LTD
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