The invention discloses an active noise reduction system for automobile wheels, which comprises four groups of noise source acquisition controllers and ANC controllers which are respectively arranged on four wheel brake caliper assemblies, and the noise source acquisition controllers are wirelessly connected with the ANC controllers; wherein the noise source controller is used for collecting a noise signal, converting the noise signal into a digital signal and sending the digital signal to the ANC controller; and the ANC controller is used for generating a digital control signal which is opposite to the digital signal in phase, converting the digital control signal into a control signal, and playing the control signal through a loudspeaker. The system can eliminate noise generated by wheels in real time, and can adapt to various working conditions, various vehicle speeds and various load conditions of an automobile; the comfort in the automobile and the driving experience are improved, the noise is eliminated from the sound source of the wheel noise, and the noise pollution of the automobile to the environment is reduced.
本发明公开了一种汽车车轮主动降噪系统,包括四组分别安装于四个车轮制动卡钳总体上的噪声源采集控制器和ANC控制器,噪声源采集控制器与ANC控制器无线连接;其中,噪声源控制器,用于采集噪声信号并将噪声信号转换为数字信号后发送给ANC控制器;ANC控制器,用于生成与数字信号反相的数字控制信号,并将数字控制信号转换为控制信号,再通过扬声器播放控制信号。本发明能够将车轮实时产生的噪声进行消除,能够自适应汽车的各种工况、各种车速、各种载荷条件;不仅增加汽车车内的舒适性、驾驶体验,而且从车轮噪声的声源处进行消除,减少汽车对环境的噪声污染。
Active noise reduction system and method for automobile wheels
一种汽车车轮主动降噪系统与方法
2022-07-08
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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