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Method and apparatus for continuously optimized road noise cancellation

A technology of noise cancellation and road, applied in the direction of sounding equipment, active noise control, musical instruments, etc., can solve problems such as detrimental user experience

Pending Publication Date: 2019-09-06
HARMAN INT IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the time it takes for the RNC system to converge to a new optimal state, the output of the road noise cancellation system may be suboptimal, which may detract from the user's experience in the cabin listening environment

Method used

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  • Method and apparatus for continuously optimized road noise cancellation
  • Method and apparatus for continuously optimized road noise cancellation
  • Method and apparatus for continuously optimized road noise cancellation

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Embodiment Construction

[0014] Although various aspects of the inventive subject matter are described with reference to particular illustrative embodiments, the inventive subject matter is not limited to such embodiments, and additional modifications, applications, and implementations are possible without departing from the inventive subject matter. In the drawings, the same reference numerals will be used to show the same parts. Those skilled in the art will recognize that changes may be made in the various components set forth herein without departing from the scope of the inventive subject matter.

[0015] Any one or more of the servers, receivers, or devices described herein embodies computer-executable instructions that can be compiled or interpreted from computer programs created using a variety of programming languages ​​and / or technologies. In general, a processor, such as a microprocessor, receives instructions, eg, from memory, computer readable media, etc., and executes the instructions. ...

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Abstract

The invention provides a system and a method for applying a set of road noise cancellation parameters to a road noise cancellation system in a vehicle traveling from a first road surface type to a second road surface type, the set being associated with a vehicle type, a tire type, a road surface type, or a vehicle location. The system and method collects and compares data with the set of road noise cancellation parameters in a database to identify when the vehicle has traveled from a first road surface type to a second road surface type and, upon identifying the vehicle has traveled from a first road surface type to a second road surface type, applies the adjusted set of road noise cancellation parameters in the database that optimize the road noise cancellation system for the second roadsurface type.

Description

technical field [0001] The subject of the invention relates to road noise cancellation, and more particularly to a road noise cancellation system with road type recognition. Background technique [0002] Active noise control (ANC) systems attenuate undesired noise using feedforward and feedback structures to adaptively remove undesired noise within a listening environment such as a car cabin. In a car listening environment, a potential source of unwanted noise comes from the interaction between the vehicle's tires and the road surface the vehicle is driving on. A Road Noise Cancellation (RNC) system is a specific ANC system implemented on a vehicle to minimize unwanted road noise inside the cabin. The RNC system uses vibration sensors to sense road-induced vibrations generated by tire and road contact surfaces that cause unwanted road noise. This unwanted road noise in the vehicle cabin is then canceled, or reduced, by using speakers to produce sound waves that are ideally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/178
CPCG10K11/17853G10K11/17854G10K2210/12G10K2210/12821G10K11/17881G10K2210/3028G10K11/17823G10K2210/3044G10K11/178
Inventor D.M.斯塔福德T.蔡K.J.巴斯蒂尔A.库马
Owner HARMAN INT IND INC
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