The invention discloses a vehicle-mounted active noise control system and a fusion method thereof.The system comprises an acceleration sensor, a microphone, a loudspeaker and a controller, the acceleration sensor, the microphone and the controller are connected to a vehicle-mounted A2B bus, and the controller is further connected to a vehicle-mounted CAN bus; the controller comprises an engine noise active controller and a road noise active controller, and sound signals picked up by the microphones are used as error signals to be respectively output to the engine noise active controller and the road noise active controller; the road noise active controller and the engine noise active controller respectively generate a first excitation signal and a second excitation signal by using signals, and the controllers fuse the two excitation signals and then output the fused excitation signals to the corresponding loudspeakers for operation. According to the vehicle-mounted active noise control system and the fusion method thereof, the vehicle ENC algorithm and the RNC algorithm are fused, the computing power consumption is reduced, and the number and cost of vehicle-mounted microphones are reduced by sharing the same microphone.
本发明公开了一种车载主动噪声控制系统及其融合方法,系统包括加速度传感器、传声器、扬声器和控制器,加速度传感器、传声器和控制器接入车载的A2B总线,控制器还接入车载的CAN总线,控制器包括发动机噪声主动控制器和路面噪声主动控制器,传声器拾取的声音信号作为误差信号分别输出至发动机噪声主动控制器和路面噪声主动控制器;路面噪声主动控制器和发动机噪声主动控制器利用信号分别生成第一激励信号和第二激励信号,控制器将两个激励信号融合后输出至相应的扬声器运行。本发明提供的车载主动噪声控制系统及其融合方法将汽车ENC算法和RNC算法实现融合,降低了算力消耗,并通过共用同一套传声器,减少了车载传声器数量和成本。
Vehicle-mounted active noise control system and fusion method thereof
一种车载主动噪声控制系统及其融合方法
2023-06-06
Patent
Electronic Resource
Chinese
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