Method for reducing noise in a vehicle cabin
    1.
    发明授权
    Method for reducing noise in a vehicle cabin 有权
    降低车厢噪音的方法

    公开(公告)号:US07775320B2

    公开(公告)日:2010-08-17

    申请号:US12052385

    申请日:2008-03-20

    IPC分类号: F01N1/06

    摘要: A method of controlling noise from a six cylinder engine that can selectively use in separate operating modes either three cylinders, four cylinders, or all six cylinders, is provided that uses a noise cancellation system to provide a cancellation sound at a first frequency representative of the engine operating mode. When the vehicle changes, for example, from a three cylinder utilization mode to six cylinder utilization mode, the method extends the provision of the noise cancellation sound, at a frequency representative of three cylinder operation, beyond the time when three cylinder mode is changed to six cylinder mode. As a result, a residual “pop” noise associated with the vehicle exhaust, that is traditionally heard during the transition period is cancelled and no longer noticeable. The method also includes implementation of a waiting time before a providing cancellation sounds of different frequencies, to avoid amplitude mismatch.

    摘要翻译: 提供了一种控制来自六缸发动机的噪声的方法,其可以选择性地在三个气缸,四个气缸或全部六个气缸的分开的工作模式中使用,其使用噪声消除系统以代表第一频率的第一频率提供消除声音 发动机工作模式。 当车辆例如从三缸利用模式改变为六缸利用模式时,该方法将代表三缸操作的频率的噪声消除声音的提供延伸到三缸模式改变为 六缸模式。 结果,传统上在过渡期间听到的与车辆尾气相关联的残余的“流行”噪声被取消并且不再显着。 该方法还包括在提供不同频率的消除声音之前实现等待时间,以避免幅度失配。

    METHOD FOR REDUCING NOISE IN A VEHICLE CABIN
    2.
    发明申请
    METHOD FOR REDUCING NOISE IN A VEHICLE CABIN 有权
    减少车辆噪音的方法

    公开(公告)号:US20090236173A1

    公开(公告)日:2009-09-24

    申请号:US12052385

    申请日:2008-03-20

    IPC分类号: F01N1/06

    摘要: A method of controlling noise from a six cylinder engine that can selectively use in separate operating modes either three cylinders, four cylinders, or all six cylinders, is provided that uses a noise cancellation system to provide a cancellation sound at a first frequency representative of the engine operating mode. When the vehicle changes, for example, from a three cylinder utilization mode to six cylinder utilization mode, the method extends the provision of the noise cancellation sound, at a frequency representative of three cylinder operation, beyond the time when three cylinder mode is changed to six cylinder mode. As a result, a residual “pop” noise associated with the vehicle exhaust, that is traditionally heard during the transition period is cancelled and no longer noticeable. The method also includes implementation of a waiting time before a providing cancellation sounds of different frequencies, to avoid amplitude mismatch.

    摘要翻译: 提供了一种控制来自六缸发动机的噪声的方法,其可以选择性地在三个气缸,四个气缸或全部六个气缸的分开的工作模式中使用,其使用噪声消除系统以代表第一频率的第一频率提供消除声音 发动机工作模式。 当车辆例如从三缸利用模式改变为六缸利用模式时,该方法将代表三缸操作的频率的噪声消除声音的提供延伸到三缸模式改变为 六缸模式。 结果,传统上在过渡期间听到的与车辆尾气相关联的残余的“流行”噪声被取消并且不再显着。 该方法还包括在提供不同频率的消除声音之前实现等待时间,以避免幅度失配。

    Active noise control device
    3.
    发明授权
    Active noise control device 有权
    主动噪声控制装置

    公开(公告)号:US09042569B2

    公开(公告)日:2015-05-26

    申请号:US13119679

    申请日:2009-06-04

    IPC分类号: G10K11/16 G10K11/178

    摘要: An active noise control device detects composite vibration of a vibration transmitting route to which both vibration of a rotating body caused by generation or transmission of drive force of a vehicle and vibration of a wheel generated by contact between the wheel and a road surface are transmitted. A first reference signal for defining a reference waveform of a canceling sound for canceling vibration noise in a vehicle interior is generated based on the composite vibration. The component of the canceling sound for canceling vibration noise of the rotating body is removed from the first reference signal to generate a second reference signal for defining a reference waveform of the canceling sound for canceling vibration noise of the wheel. The canceling sound is outputted based on the second reference signal.

    摘要翻译: 主动噪声控制装置检测由车辆的驱动力的产生或传递引起的旋转体的振动和车轮与路面之间的接触产生的车轮的振动的振动传递路径的复合振动。 基于复合振动产生用于定义用于消除车辆内部的振动噪声的消除声音的参考波形的第一参考信号。 用于消除旋转体的振动噪声的抵消声音的分量从第一参考信号中去除,以产生用于定义用于消除车轮的振动噪声的消除声音的参考波形的第二参考信号。 基于第二参考信号输出消除声音。

    Active noise control system and active vibration control system
    5.
    发明授权
    Active noise control system and active vibration control system 有权
    主动噪声控制系统和主动振动控制系统

    公开(公告)号:US08150055B2

    公开(公告)日:2012-04-03

    申请号:US11723435

    申请日:2007-03-20

    IPC分类号: G10K11/16 A61F11/06

    CPC分类号: G10K11/178

    摘要: An active noise control system includes a filter coefficient updating unit including an imaginary term estimator. The imaginary term estimator estimates an imaginary term Ie from a real term Re of an error signal e supplied from a microphone. The filter coefficient updating unit updates a filter coefficient W of an adaptive filter based on the imaginary term Ie, the real term Re, and a corrective signal supplied from a reference signal corrector. The filter coefficient updating unit updates the filter coefficient W successively in respective sampling periods.

    摘要翻译: 有源噪声控制系统包括具有虚拟项估计器的滤波器系数更新单元。 虚词估计器从麦克风提供的误差信号e的实数Re估计虚词Ie。 滤波器系数更新单元基于虚项Ie,实数Re和从参考信号校正器提供的校正信号来更新自适应滤波器的滤波器系数W. 滤波器系数更新单元在各个采样周期中连续地更新滤波器系数W.

    ACTIVE NOISE CONTROLLER
    6.
    发明申请
    ACTIVE NOISE CONTROLLER 有权
    主动噪声控制器

    公开(公告)号:US20110075854A1

    公开(公告)日:2011-03-31

    申请号:US12994025

    申请日:2009-02-19

    IPC分类号: G10K11/16

    摘要: On an active noise controller, an adjustment reference signal generator generates an adjustment reference signal Sra by reading the waveform data sequentially at a read location shifted by a given amount from a read location for a reference signal Sr with respect to the waveform data at a reference signal generator. A one-tap adaptive filter generates a control signal Scp by multiplying the adjustment reference signal Sra by a filter factor W. A gain controller outputs a compensation control signal Sca generated by multiplying the control signal Scp by gain G. A speaker outputs the compensation control signal Sca as a cancellation sound.

    摘要翻译: 在有源噪声控制器上,调整参考信号发生器通过在参考信号Sr的读取位置相对于基准信号Sr相对于波形数据的读取位置顺序地读取波形数据来生成调整参考信号Sra 信号发生器。 单抽头自适应滤波器通过将调整参考信号Sra乘以滤波器因子W来产生控制信号Scp。增益控制器输出通过将控制信号Scp乘以增益G而产生的补偿控制信号Sca。扬声器输出补偿控制 信号Sca作为取消声音。

    VEHICULAR ACTIVE VIBRATORY NOISE CONTROL APPARATUS
    7.
    发明申请
    VEHICULAR ACTIVE VIBRATORY NOISE CONTROL APPARATUS 有权
    车辆主动振动噪声控制装置

    公开(公告)号:US20090060217A1

    公开(公告)日:2009-03-05

    申请号:US12197883

    申请日:2008-08-25

    IPC分类号: G10K11/16

    摘要: A vehicular active vibratory noise control apparatus includes an adaptive notch filter (second control signal generating unit) for generating a corrected error signal representative of a road noise only by removing the component of a rotational frequency (the component of an engine muffled sound) from an error signal, generates a first control signal from the corrected error signal and a reference signal, and reduces the component of the rotational frequency (engine muffled sound) at a position where a microphone is located (evaluating point).

    摘要翻译: 一种车辆用主动振动噪声控制装置,其特征在于,包括:自适应陷波滤波器(第二控制信号生成单元),用于通过从所述自适应陷波滤波器(A)中除去所述旋转频率的分量 误差信号从校正后的误差信号和参考信号产生第一控制信号,并且减小麦克风位置的位置处的旋转频率(发动机消声)的分量(评价点)。

    Vehicular sound effect generating apparatus
    8.
    发明申请
    Vehicular sound effect generating apparatus 有权
    车载音效发生装置

    公开(公告)号:US20070234879A1

    公开(公告)日:2007-10-11

    申请号:US11727239

    申请日:2007-03-26

    IPC分类号: G10H1/00

    摘要: A vehicular sound effect generating apparatus has a controller for determining whether a transmission on a vehicle is a manual transmission or an automatic transmission based on whether a clutch signal is generated or not, and automatically changing weighting gain characteristics as acoustic correcting characteristics stored in a sound pressure adjuster depending on the determined transmission. The vehicular sound effect generating apparatus generates a sound effect in a vehicle cabin depending on the manual transmission or the automatic transmission.

    摘要翻译: 车用声音效果产生装置具有控制器,用于基于是否产生离合器信号来确定车辆上的变速器是手动变速器还是自动变速器,并且将加权增益特性自动改变为存储在声音中的声学校正特性 压力调节器取决于确定的传动。 车辆声音效果产生装置根据手动变速器或自动变速器在车厢中产生声音效果。

    Active vibration noise control apparatus
    9.
    发明授权
    Active vibration noise control apparatus 有权
    主动振动噪声控制装置

    公开(公告)号:US09245518B2

    公开(公告)日:2016-01-26

    申请号:US13354068

    申请日:2012-01-19

    摘要: An active vibration noise control apparatus uses an adaptive control process, which predicts rear road wheel noise canceling sounds by correcting a front road wheel reference signal or a rear road wheel reference signal with a corrective filter, based on different characteristics of front road wheel suspensions and rear road wheel suspensions.

    摘要翻译: 主动振动噪声控制装置使用自适应控制过程,该自适应控制过程基于前轮车悬架的不同特性和通过校正滤波器校正前车轮参考信号或后车轮参考信号来预测后车轮噪声消除声音 后轮车悬架

    Active vibration noise control apparatus
    10.
    发明授权
    Active vibration noise control apparatus 有权
    主动振动噪声控制装置

    公开(公告)号:US09042570B2

    公开(公告)日:2015-05-26

    申请号:US13991114

    申请日:2011-09-27

    摘要: An ANC apparatus using so-called adaptive control is provided with a cancellation sound output means which outputs front wheel cancellation sound that cancels front wheel vibration noise due to front wheel vibration at a position to be silenced on the basis of a front wheel reference signal, and outputs rear wheel cancellation sound that cancels rear wheel vibration noise due to predicted rear wheel vibration at the position to be silenced on the basis of a rear wheel reference signal, and a turning state detection means which detects a turning state of a vehicle. When a difference in travel trajectory between a front wheel and a rear wheel is detected on the basis of the turning state, the cancellation sound output means suppresses the output of the rear wheel cancellation sound.

    摘要翻译: 使用所谓的自适应控制的ANC装置设置有消除声音输出装置,其输出前轮消除声音,其基于前轮参考信号在待沉默的位置处抵消由于前轮振动引起的前轮振动噪声, 并输出后轮消除声,该后轮消除声由于根据后轮参考信号而在待沉默的位置处由于预测的后轮振动而消除后轮振动噪声;以及转向状态检测装置,其检测车辆的转动状态。 当基于转向状态检测到前轮和后轮之间的行驶轨迹的差异时,取消声音输出装置抑制后轮消除声音的输出。