公开(公告)号：US20150109115A1

公开(公告)日：2015-04-23

申请号：US14518917

申请日：2014-10-20

Applicant: GM Global Technology Operations LLC

Inventor： Peter Bender ,  Oliver Jung

IPC: B60Q5/00

CPC classification number: B60Q5/005 ,  B60Q5/008 ,  G10K11/004

Abstract: An acoustic warning device for a vehicle is disclosed. The acoustic warning device includes an air suction device having a suction tube, and a filter housing having a filter and a sound generating device which is arranged therein. The sound generating device is arranged between suction tube and filter with respect to a flow direction of the air. The sound generating device firstly emits the acoustic signal into a spatial volume of the filter housing. An additional chamber volume serves as a band-pass filter for the sound waves emitted from the sound generating device. The acoustic warning device may further include a sound source arranged outside the filter housing to generate sound signals with higher frequencies than emitted from the filter housing. By the combination of these two sound generating devices, an efficient emission of low-frequency and also of high-frequency sound signals is therefore possible.

Abstract translation: 公开了一种用于车辆的声学警告装置。 声学警报装置包括具有吸入管的吸气装置和布置在其中的具有过滤器和声音产生装置的过滤器壳体。 发声装置相对于空气的流动方向布置在吸入管和过滤器之间。 声音发生装置首先将声信号发射到过滤器壳体的空间体积中。 附加的室容积用作从发声装置发出的声波的带通滤波器。 声音警告装置还可以包括布置在过滤器壳体外部的声源，以产生具有比从过滤器壳体发射的频率更高的频率的声音信号。 通过这两个发声装置的组合，因此可以有效地发射低频和高频声音信号。