New energy vehicle and method and system for improving interior sound quality of new energy vehicle

A new energy vehicle, sound quality technology, applied in the direction of signal processing, frequency response correction, electrical components, etc., can solve the problem of low cost, achieve the effect of low cost, improve the quality of the acoustic environment in the car, and low cost

Active Publication Date: 2019-11-22
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can improve the motor noise problem in new energy vehicles, improve the quality of the acoustic environment inside the vehicle, and is simple and easy to operate with low cost

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  • New energy vehicle and method and system for improving interior sound quality of new energy vehicle
  • New energy vehicle and method and system for improving interior sound quality of new energy vehicle
  • New energy vehicle and method and system for improving interior sound quality of new energy vehicle

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] First of all, it should be explained that the method for improving the sound quality inside the new energy vehicle proposed by the embodiment of the present invention is different from the idea of ​​the noise processing method in the related art (that is, eliminating noise or masking the noise). The method of the present invention is to construct noise, To form "harmonic noise". That is, the noise is not only present, but still audible.

[0032] In musical acoustics, the fundamental frequency determines the pitch, and the...

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Abstract

Disclosed are a new energy vehicle, and a method and system for improving interior sound quality of a new energy vehicle. The method for improving interior sound quality of a new energy vehicle comprises the following steps: acquiring a noise signal from the interior of a vehicle; performing analysis processing on the noise signal to obtain a frequency and a bandwidth of the noise signal; acquiring, according to the frequency and the bandwidth of the noise signal, a subharmonic signal corresponding to the noise signal; and controlling a vehicle-mounted audio player module to output the subharmonic signal so as to generate a harmonic signal by means of the subharmonic signal and the noise signal. The method for improving interior sound quality of a new energy vehicle can mitigate a noise problem associated with a motor in a new energy vehicle, thereby improving interior sound quality of the new energy vehicle. Moreover, the method can be implemented easily and realized at low costs.

Description

technical field [0001] The invention relates to the technical field of noise control, in particular to a method for improving the sound quality inside a new energy vehicle, a system for improving the sound quality inside a new energy vehicle, and a new energy vehicle. Background technique [0002] With the rapid development of the new energy industry, more and more motor-related new energy products appear in our lives. However, while new energy products (such as new energy vehicles) bring convenience to our lives, they also bring us the trouble of motor noise. [0003] The high-frequency noise of the motor is a kind of comprehensive noise, which includes mechanical noise, electromagnetic noise and air noise, and the frequency is from 1KHz to 12KHz or higher. The control of this kind of noise is very necessary. [0004] In related technologies, there are mainly two types of motor noise control schemes: one is passive noise reduction, including structural optimization, elimi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/04
CPCH04R3/04H04R2430/00
Inventor 赵永吉孙亚轩
Owner BYD CO LTD
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