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8 条记录 (耗时 0.017 秒)

    Apparatus for preventing flow noise in throttle valve
    2.
    发明公开
    Apparatus for preventing flow noise in throttle valve 失效
    Vorrichtung zum Verhindern vonDurchströmgeräuschenbei Drosselklappen

    公开(公告)号：EP0863303A2

    公开(公告)日：1998-09-09

    申请号：EP98103722.9

    申请日：1998-03-03

    申请人： NIPPON SOKEN, INC. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Nakase, Yoshihiro ,  Ohara, Kouzi ,  Kohama, Tokio ,  Kanehara, Kenji ,  Yamamoto, Kenichi ,  Miyaji, Yoshihiro

    IPC分类号： F02M35/12

    CPC分类号： F02M35/1211 ,  F02D9/104 ,  F02M35/1216

    摘要： An apparatus for preventing flow noise which suppresses the noise caused at the time of opening of a throttle valve provided in an intake passage of an internal combustion engine etc. At the downstream side of a pair of clearances formed at the top and bottom when the throttle valve opens, a means is provided acting on the flows of air passing through at least one of the clearances to reduce the flow rate and acting on the flows to cause the point of convergence of the flows of air passing through the pair of clearances to shift to the downstream side.

    摘要翻译： 一种用于防止流量噪声的装置，其抑制在设置在内燃机的进气通道中的节流阀打开时引起的噪音。在形成在顶部和底部的一对间隙的下游侧，当节气门 阀门打开时，提供作用于穿过至少一个间隙的空气流动的装置，以减小流量并作用在流动上，以使通过该对间隙的空气流收敛点移动 到下游。

    Internal combustion engine knock determination device and knock determination method
    3.
    发明公开
    Internal combustion engine knock determination device and knock determination method 有权
    一种用于爆震的内燃机和方法的爆震判定装置beuerteilung

    公开(公告)号：EP2116713A1

    公开(公告)日：2009-11-11

    申请号：EP09010526.3

    申请日：2007-10-01

    申请人： Toyota Jidosha Kabushiki Kaisha ,  Nippon Soken, Inc.

    发明人： Oe, Shuhei ,  Ohara, Kouzi ,  Masuda, Satoshi ,  Takemura, Yuuichi ,  Kaneko, Rihito ,  Kasashima, Kenji ,  Yoshihara, Masatomo ,  Senda, Kenji ,  Hanai, Norihito ,  Yamasako, Yasuhiro

    IPC分类号： F02D45/00

    CPC分类号： G01M15/11 ,  F02D35/027 ,  F02D41/1498 ,  G01L23/225

    摘要： An engine ECU executes a program that includes the steps of: calculating 15-degrees integrated value integrating vibration intensity for each of six crank angle ranges (S110); detecting an amount of change in the 15-degrees integrated value between ignition cycles (S 112); specifying two ranges having larger amounts of change (S114); specifying a crank angle having intensity larger than that of a neighboring crank angle in a search range determined to be the same as the specified ranges (S 116); calculating a coefficient of correlation K corresponding to a difference between a vibration waveform and a knock waveform model (S 122) while the specified crank angle is matched with a timing at which intensity peaks in the knock waveform model; and, if the coefficient of correlation K is larger than a threshold value K(0) (YES at S 126), determining that knock has occurred (S128).

    摘要翻译： 发动机ECU执行的程序那样包括如下步骤：计算15度积分值INTEGRA对于每个六个曲柄角度范围（S110）廷振动强度; 变化量的在点火周期（S 112）之间的15度的积分值检测; 指定具有较大的改变（S114）的量两个范围; 指定具有强度比开采是一样的规定的范围（S 116）的搜索范围确定的相邻曲柄角的较大的曲柄角; 计算相关的K对应于振动波形和爆震波形模型（S 122）之间的差而确定的曲柄角与在所述爆震波形模型，其强度峰值的定时相匹配的系数; 并且，如果相关系数K大于阈值K（0）的情况下（S126），确定的采矿并敲已发生（S128）放大。

    Engine noise control apparatus
    8.
    发明公开
    Engine noise control apparatus 失效
    Motorlärmkontrollegerät。

    公开(公告)号：EP0625773A2

    公开(公告)日：1994-11-23

    申请号：EP94107760.4

    申请日：1994-05-19

    申请人： NIPPONDENSO CO., LTD. ,  NIPPON SOKEN, INC.

    发明人： Tanaka, Katsuyuki ,  Nishio, Yoshitaka ,  Kohama, Tokio ,  Kameyama, Satoshi 237, Shiratoriryo, ,  Ohara, Kouzi ,  Kato, Masanori

    IPC分类号： G10K11/16

    CPC分类号： F01N1/065 ,  G10K11/178 ,  G10K2210/107 ,  G10K2210/112 ,  G10K2210/1282 ,  G10K2210/12822 ,  G10K2210/3027 ,  G10K2210/3032 ,  G10K2210/3033 ,  G10K2210/3039 ,  G10K2210/3046 ,  G10K2210/51

    摘要： An engine noise control apparatus which is capable of effectively reducing or waveform-reshaping a wide range of engine noise. The apparatus has an engine rotating speed sensor (5) for detecting an engine rotating speed and a waveform generator circuit (46) for converting a rotation pulse signal to a periodic signal having a frequency which is a predetermined multiple of the detected engine rotating speed. The output of an air flow meter (3) is passed through a bandpass filter (41) and a rectifier circuit (42) to generate a control signal which is an average value of alternating current components of the output. A CPU (44), with reference to a map previously stored in a memory (45), modifies the phase and amplitude of the periodic signal with respect to an engine rotation reference signal based on the rotation pulse signal and the control signal, and outputs the modified signal as driving signals to operate speakers (6A, 6B) disposed in an intake tube and an exhaust tube for reducing noise.

    摘要翻译： 一种发动机噪声控制装置，其能够有效地减小或波形重新形成大范围的发动机噪声。 该装置具有用于检测发动机转速的发动机转速传感器（5）和用于将旋转脉冲信号转换为具有检测到的发动机转速的预定倍数的频率的周期信号的波形发生器电路（46）。 空气流量计（3）的输出通过带通滤波器（41）和整流电路（42），以产生作为输出的交流分量的平均值的控制信号。 参考先前存储在存储器（45）中的映射的CPU（44）基于旋转脉冲信号和控制信号修改相对于发动机旋转参考信号的周期信号的相位和幅度，并且输出 修改的信号作为用于操作设置在进气管中的扬声器（6A，6B）和用于降低噪声的排气管的驱动信号。