The embodiment of the invention discloses a vehicle noise reduction method, device and equipment, a vehicle and a storage medium, and the method comprises the steps: carrying out the collection of road noise signals at a plurality of collection points in the vehicle, obtaining a plurality of road noise signals, inputting the plurality of road noise signals into a pre-configured filter, obtaining to-be-output signals corresponding to the loudspeakers in the vehicle, and transmitting the to-be-output signals to the vehicle; when each to-be-output signal is output through the corresponding loudspeaker, the sound wave signal generated when any loudspeaker outputs the corresponding to-be-output signal is equal to the mixed sound wave signal formed by the road noise signals at any loudspeaker in size and opposite in phase, and active noise reduction of the vehicle is achieved. The filter is obtained based on an incidence relation between historical road noise signals at each acquisition point, an incidence relation between error microphones at a plurality of noise reduction points, a transmission path from each loudspeaker to each error microphone and an incidence relation between each acquired historical road noise signal and each expected signal; and multi-point noise reduction of the road noise signal is realized.
本申请实施例公开了一种车辆降噪方法、装置、设备、车辆及存储介质,在车辆内部的多个采集点进行路噪信号采集,得到多个路噪信号,将该多个路噪信号输入预先配置的滤波器,得到与车辆内部的各扬声器对应的待输出信号,将每个待输出信号通过对应的扬声器输出时,任一扬声器输出对应的待输出信号时产生的声波信号与上述多个路噪信号在该任一扬声器处形成的混合声波信号大小相等,相位相反,实现了车辆主动降噪。滤波器是基于各采集点处的历史路噪信号间的关联关系、多个降噪点处的误差麦克风之间的关联关系、每个扬声器到各个误差麦克风之间的传递路径以及采集的每个历史路噪信号与各期望信号之间的关联关系得到的,实现了路噪信号的多点降噪。
Vehicle noise reduction method, device and equipment, vehicle and storage medium
车辆降噪方法、装置、设备、车辆及存储介质
2024-04-05
Patent
Elektronische Ressource
Chinesisch
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