发明公开
- 专利标题: ACTIVE NOISE ATTENUATION SYSTEM FOR VEHICLES
- 专利标题(中): 主动降噪系统的车辆
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申请号: EP03786121.8申请日: 2003-12-16
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公开(公告)号: EP1573716A2公开(公告)日: 2005-09-14
- 发明人: STOTHERS, Ian, McGregor,The Old White Horse , SCOTT, Ivan, Anthony,28A Saffron Road , ELLIOTT, Stephen, John
- 申请人: ULTRA ELECTRONICS LIMITED
- 申请人地址: 417 Bridport Road Greenford, Middlesex UB6 8UA GB
- 专利权人: ULTRA ELECTRONICS LIMITED
- 当前专利权人: ULTRA ELECTRONICS LIMITED
- 当前专利权人地址: 417 Bridport Road Greenford, Middlesex UB6 8UA GB
- 代理机构: Collins, John David
- 优先权: GB0229580 20021219
- 国际公布: WO2004057572 20040708
- 主分类号: G10K11/178
- IPC分类号: G10K11/178
摘要:
A system for attenuating noise in a cabin of a vehicle is provided in which the vehicle has an interior wall defining the cabin and an exterior wall defining a cavity between the interior wall and the exterior wall. A plurality of actuators are arranged within the cavity, on the interior wall or on the exterior wall for providing a physical actuation resulting in an acoustic disturbance. A plurality of sensors are arranged in the cavity on the interior wall, or on the exterior wall to provide indications of acoustic disturbances. A control system uses the indications from the sensors to generate control signals for the actuators. In one arrangement the sensors are arranged in an array interspersed between the actuators which are also arranged in an array. A drive signal for each actuator is then generated using the signals from sensors adjacent to the actuators.
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