Active vibratory noise control apparatus
    11.
    发明授权
    Active vibratory noise control apparatus 有权
    主动振动噪声控制装置

    公开(公告)号:US07873173B2

    公开(公告)日:2011-01-18

    申请号:US11223950

    申请日:2005-09-13

    IPC分类号: A61F11/06

    摘要: A cosine wave over one period is stored as waveform data in a memory, and address shift values based on a phase lag in transfer characteristics from a speaker to a microphone are stored in a memory. An address shift value is read from the memory by referring to the frequency, and waveform data are read from the memory at addresses that are produced by shifting the addresses from which the reference cosine wave signal and the reference sine wave signal are read, by the address shift value. The read waveform data are used as a first reference signal and a second reference signal, which are applied to adaptive notch filters, to suppress vibratory noise.

    摘要翻译: 一个周期中的余弦波作为波形数据存储在存储器中,并且基于从扬声器到麦克风的传送特性中的相位滞后的地址偏移值被存储在存储器中。 通过参考频率从存储器读取地址偏移值,并且从存储器中读取通过将参考余弦波信号和参考正弦波信号从其读取的地址移位而产生的地址的波形数据, 地址移位值。 读取的波形数据被用作施加到自适应陷波滤波器的第一参考信号和第二参考信号,以抑制振动噪声。

    Active vibrational noise control apparatus
    12.
    发明授权
    Active vibrational noise control apparatus 有权
    主动振动噪声控制装置

    公开(公告)号:US07773760B2

    公开(公告)日:2010-08-10

    申请号:US11605238

    申请日:2006-11-29

    IPC分类号: H03B29/00 G10K11/16 A61F11/06

    CPC分类号: G10K11/178

    摘要: While a vehicle incorporating an active vibration noise control apparatus is decelerating, hysteresis is given if an operating point moves from an operating point on a sampling period characteristic curve to an operating point on another sampling period characteristic curve. Even if a base period detected depending on noise contains fluctuations, a smooth noise control process is performed. Since a division number produced when the base period is divided by a sampling period is a real number, the freedom of design is widened. Less strict limits are posed on the processing capability of a CPU of the active vibration noise control apparatus to provide a wider control range.

    摘要翻译: 当包含主动振动噪声控制装置的车辆正在减速时,如果工作点从采样周期特性曲线上的工作点移动到另一个采样周期特性曲线上的工作点,则给出滞后。 即使根据噪声检测到的基准周期包含波动,也执行平滑的噪声控制处理。 由于在基准周期除以采样周期之后产生的分割数是实数,因此设计的自由度变宽。 对主动振动噪声控制装置的CPU的处理能力不严格的限制提供更宽的控制范围。

    Active vibration control system for hybrid vehicle
    14.
    发明授权
    Active vibration control system for hybrid vehicle 有权
    混合动力汽车主动振动控制系统

    公开(公告)号:US07633257B2

    公开(公告)日:2009-12-15

    申请号:US11715849

    申请日:2007-03-09

    IPC分类号: G05B5/01

    摘要: In a motor-assisted hybrid vehicle, an active vibration control system suppresses torque fluctuations of an engine without detriment to the response of a static torque. An adaptive notch filter outputs a control signal depending on a harmonic basic signal generated by a basic signal generator from a rotational frequency of a crankshaft. A combiner combines the control signal with a drive signal for the generator motor and supplies the combined signal through a power controller to the generator motor. The basic signal is supplied to corrective filters having the transfer function of the generator motor to output a reference signal. The filter coefficient of an adaptive notch filter is successively updated so that an error signal representative of a rotational speed fluctuation of the crankshaft will be minimized.

    摘要翻译: 在电动辅助混合动力车辆中,主动振动控制系统抑制发动机的转矩波动而不损害静态转矩的响应。 自适应陷波滤波器根据基本信号发生器从曲轴的旋转频率产生的谐波基本信号输出控制信号。 组合器将控制信号与发电机电机的驱动信号相结合,并将组合信号通过功率控制器提供给发电机。 基本信号被提供给具有发电机电动机的传递函数的校正滤波器以输出参考信号。 连续地更新自适应陷波滤波器的滤波器系数,使得表示曲轴的转速波动的误差信号最小化。

    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    15.
    发明申请
    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
    内燃机控制装置

    公开(公告)号:US20090276144A1

    公开(公告)日:2009-11-05

    申请号:US12513509

    申请日:2007-07-13

    IPC分类号: F02D41/30 F02M37/04 F02M69/04

    摘要: A fuel supply system includes a first non-return valve for a low-pressure delivery connection pipe and a second non-return valve for a pump supply pipe. The former non-return pipe does not allow fuel to flow from the low-pressure delivery pipe to the low-pressure supply pipe. The second non-return valve does not allow fuel to flow from pump supply pipe to the low-pressure supply pipe. Upon determining that air purging is necessary, an engine ECU operates a feed pump for approximately one second and then opens, for dummy injection, an in-cylinder injector and an intake manifold injector.

    摘要翻译: 燃料供给系统包括用于低压输送连接管的第一止回阀和用于泵供给管的第二止回阀。 前者的止回管不允许燃料从低压输送管流向低压供应管。 第二个止回阀不允许燃料从泵供应管道流到低压供应管道。 在确定需要进行空气净化时,发动机ECU将进料泵操作大约一秒钟,然后打开用于虚拟喷射的缸内喷射器和进气歧管喷射器。

    ACTIVE NOISE CONTROL APPARATUS
    17.
    发明申请
    ACTIVE NOISE CONTROL APPARATUS 失效
    主动噪声控制装置

    公开(公告)号:US20080240457A1

    公开(公告)日:2008-10-02

    申请号:US12058094

    申请日:2008-03-28

    IPC分类号: G10K11/16

    CPC分类号: G10K11/178 G10K2210/1282

    摘要: A subtractor subtracts an echo canceling signal Ĉ·yl(n−1) from a canceling error signal e(n) to estimate a residual noise to be silenced at the position of a microphone, and outputs a first basic signal x1(n) representing the residual noise. A first control circuit section generates a first control signal y1(n) based on the first basic signal x1(n) and a second basic signal x2(n) that is generated by delaying the first basic signal x1(n) by a time Z−n. A second circuit section generates a second control signal y2(n) based on the first basic signal x1(n) and an engine rotation signal.

    摘要翻译: 减法器从消除误差信号e(n)中减去回波消除信号C.yl(n-1),以估计在麦克风的位置处要静音的残留噪声,并输出第一基本信号x 1(n) 代表残留噪声。 第一控制电路部分基于第一基本信号x 1(n)和通过延迟第一基本信号x 1(n)而产生的第二基本信号x 2(n)产生第一控制信号y 1(n) 一段时间Z -n 。 第二电路部分基于第一基本信号x 1(n)和发动机旋转信号产生第二控制信号y 2(n)。

    Control device of cylinder reducing operation of multi-cylinder engine
    18.
    发明授权
    Control device of cylinder reducing operation of multi-cylinder engine 有权
    多缸发动机减缸运行控制装置

    公开(公告)号:US07350499B2

    公开(公告)日:2008-04-01

    申请号:US10573788

    申请日:2004-11-05

    IPC分类号: F02D13/06

    摘要: A control device for cylinder reducing operation of a multi-cylinder engine for a vehicle controls the number of working cylinders in the engine more appropriately for fuel economy while ensuring the operational stability of the engine and comfortable drivability of the vehicle. The control device comprises a detector detecting engine output torque and judges if cylinder reducing operation is to be executed while referring to the engine output torque. Because of the detection of engine output torque, cylinder reducing operation will be executed as long as torque requested of the engine is available from the reduced number of working cylinders, thereby ensuring the generation of torque required in operating the engine while saving fuel as much as possible. Through a learning process, criteria for the judgment of execution of cylinder reducing operation are modified to be adapted for any variation of engine output performances.

    摘要翻译: 用于车辆的多气缸发动机的气缸减少操作的控制装置在确保发动机的操作稳定性和车辆的舒适驾驶性的同时更适当地控制发动机中的工作气缸的数量以适合燃料经济性。 控制装置包括检测发动机输出扭矩的检测器,并且判断是否将参照发动机输出转矩执行气缸减速操作。 由于检测到发动机输出扭矩,只要可以从减少工作气缸数量获得发动机要求的扭矩,就可以执行气缸减速操作,从而确保在运行发动机时所需的扭矩的产生,同时节省燃料 可能。 通过学习过程,对气缸减速操作执行判断的标准进行了修改,以适应发动机输出性能的任何变化。

    Active noise control system
    19.
    发明授权
    Active noise control system 有权
    主动噪声控制系统

    公开(公告)号:US07340065B2

    公开(公告)日:2008-03-04

    申请号:US10855242

    申请日:2004-05-27

    IPC分类号: G10K11/16 H03B29/00

    摘要: An active noise control system is provided which cancels a noise using a sound radiated from a speaker driven by an output from an adaptive notch filter. The system employs output signals from an adder or simulation cosine-wave and sine-wave signals, an error signal or an output signal from a microphone, and a compensated signal from the adder or a signal available for acoustically transferring an output from the adaptive notch filter to the microphone in accordance with initial transfer characteristics to update the filter coefficient of the adaptive notch filter. This configuration allows the system to operate with stability even when the acoustic transfer characteristics vary with time or under circumstances where there exists a significant amount of incoming external noises. The system also prevents overcompensation for a noise at the ears of a passenger in a vehicle, thereby proving an ideal noise reduction effect.

    摘要翻译: 提供了一种主动噪声控制系统,其使用从由自适应陷波滤波器的输出驱动的扬声器辐射的声音消除噪声。 该系统采用来自加法器或模拟余弦波和正弦波信号的输出信号,来自麦克风的误差信号或输出信号,以及来自加法器的补偿信号或可用于声输出来自适应陷波的输出的信号 根据初始传输特性对麦克风进行滤波,以更新自适应陷波滤波器的滤波器系数。 这种配置允许系统即使当声传递特性随时间变化或在存在大量传入的外部噪声的情况下也能稳定地操作。 该系统还防止对车辆乘客耳朵的噪声进行过度补偿,从而证明理想的降噪效果。

    Active noise control system and active vibration control system
    20.
    发明申请
    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:US20070233478A1

    公开(公告)日:2007-10-04

    申请号:US11723435

    申请日:2007-03-20

    IPC分类号: G10L15/20

    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.