发明授权
- 专利标题: Device for reducing tire/road surface noise
- 专利标题(中): 减少轮胎/路面噪音的装置
-
申请号: US381411申请日: 1995-01-30
-
公开(公告)号: US5598479A公开(公告)日: 1997-01-28
- 发明人: Thomas Dodt , Frank Gauterin , Thomas Schulze , Geert Roik , Heinrich Huinink
- 申请人: Thomas Dodt , Frank Gauterin , Thomas Schulze , Geert Roik , Heinrich Huinink
- 申请人地址: DEX Hanover
- 专利权人: Continental Aktiengesellschaft
- 当前专利权人: Continental Aktiengesellschaft
- 当前专利权人地址: DEX Hanover
- 优先权: DEX4402699.4 19940129
- 主分类号: B60C19/00
- IPC分类号: B60C19/00 ; G10K11/178 ; G10K11/16
摘要:
A device for reducing certain sound ranges of tire/road surface noise of a motor vehicle includes sound absorbers in the form of resonators positioned at the inner wall of a wheel well of the vehicle in the area of sound projection of the tire/road surface noise. The device has an electronic control device for receiving a signal preferably derived from an ABS system in the form of the wheel rpm. The control device adjusts the resonators according to the number of tread blocks of the tire, the sound emission characteristics, and the wheel rpm. In another embodiment the electronic control device is supplied with signals received from a sound receiver that records the course over time of the sound pressure. The control device adjusts the resonators such that the measured sound pressure signal is minimized. In another alternative the device has a data processing unit including an electronic control device. The control device is supplied with a signal from sound receiving devices that record the course over time of the sound pressure. The data processing unit together with an adjusting device adjusts the resonators such that the measured sound pressure signal for selected frequency ranges is minimized.
公开/授权文献
- US6164027A Method to produce elongated objects of wood 公开/授权日:2000-12-26
信息查询