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    Vibration control system for an automotive vehicle
    1.
    发明授权
    Vibration control system for an automotive vehicle 失效
    汽车振动控制系统

    公开(公告)号：US5530764A

    公开(公告)日：1996-06-25

    申请号：US214631

    申请日：1994-03-18

    申请人： Hiroshi Uchida ,  Tetsuro Butsuen ,  Norihiko Nakao

    发明人： Hiroshi Uchida ,  Tetsuro Butsuen ,  Norihiko Nakao

    IPC分类号： G10K11/178 ,  H03B29/00 ,  A61F11/06

    CPC分类号： G10K11/1786 ,  G10K2210/1282 ,  G10K2210/3032 ,  G10K2210/30391 ,  G10K2210/3046 ,  G10K2210/3047 ,  G10K2210/3051

    摘要： Periodic first vibrations generated from the engine are reduced by the interference with the second vibrations generated from the speakers disposed in the vehicle compartment of the vehicle. The second vibrations are set in a cycle unit of the first vibrations, and they are corrected (optimized) on the basis of the signals from the microphones detecting the vibrations within the vehicle compartment and the transmission characteristic between the microphones and the speakers. During a transient period of time during which the cycles vary (during which the data lengths of the data of the second vibrations vary), such as by acceleration or deceleration, the data on the vibration wave form of the previous vibrations is corrected in anticipation (i.e. the data length is corrected), the current vibration wave form is set. The correction of the data length is made by inserting a given number of estimated data values into the previous data length or by deleting a given number of the data values from the previous data length. Further, the data length can be corrected by extending or contracting the previous vibration wave form as a whole so as to provide the data length in accordance with the current vibration wave form.

    摘要翻译： 通过与布置在车辆的车厢内的扬声器产生的第二振动的干扰来减少从发动机产生的定期的第一振动。 第二振动被设置在第一振动的周期单位中，并且它们基于来自检测车厢内的振动的麦克风的信号和麦克风和扬声器之间的传输特性被校正（优化）。 在循环变化的瞬时期间（第二振动的数据的数据长度在此期间变化），例如通过加速或减速，先前振动的振动波形式的数据被预期地校正（ 即数据长度被校正），设定当前振动波形。 通过将给定数量的估计数据值插入到先前数据长度中或通过从先前数据长度中删除给定数量的数据值来进行数据长度的校正。 此外，可以通过将先前的振动波形作为整体进行扩展或缩小来校正数据长度，以便根据当前的振动波形来提供数据长度。

    Suspension system for a vehicle
    2.
    发明授权
    Suspension system for a vehicle 失效
    车辆悬架系统

    公开(公告)号：US5203584A

    公开(公告)日：1993-04-20

    申请号：US686794

    申请日：1991-04-17

    申请人： Tetsuro Butsuen ,  Hiroshi Uchida ,  Tohru Yoshioka ,  Yasunori Yamamoto ,  Shinichiro Yamashita

    发明人： Tetsuro Butsuen ,  Hiroshi Uchida ,  Tohru Yoshioka ,  Yasunori Yamamoto ,  Shinichiro Yamashita

    IPC分类号： B60G17/0165

    CPC分类号： B60G17/0165 ,  B60G2400/102 ,  B60G2400/204 ,  B60G2400/34 ,  B60G2400/41 ,  B60G2400/50 ,  B60G2500/10 ,  B60G2600/184 ,  B60G2600/20 ,  B60G2800/22 ,  B60G2800/916

    摘要： A suspension system of a vehicle which judges the direction of a damping force of a shock absorber of damping force characteristic variable type, provided between the sprung member and the unsprung member, either oscillation-stimulating direction or oscillation-restraining direction with respect to vertical osciallation of the sprung member, and it also judges the size of the damping force of the shock absorber. The damping force characteristic of the shock absorber is set higher when it is larger than the predetermined value and it is set lower when it is less than the predertemined value. The predetermined value can be changed according to the road surface, oscillation-restraining energy becomes larger than the oscillation-stimulating energy thereby. Therefore, improvement of the comfortableness to ride in and running stability can be planned and also, noise and oscillation caused by unnecessary changes of the damping force characteristic of the shock absorber in a high oscillation frequency range due to road bumps can be reduced.

    摘要翻译： 一种车辆的悬架系统，其判断弹簧构件与簧下构件之间设置的阻尼力特性可变型减振器的阻尼力方向，相对于垂直振荡的振荡刺激方向或振动抑制方向 并且还判断减震器的阻尼力的大小。 当减震器的阻尼力特性大于预定值时，该减震器的特性被设定得较高，并且当其小于预先设定的值时，其设定得较低。 可以根据路面来改变预定值，因此，抑制振荡的能量变得比振动刺激能量大。 因此，能够提高乘坐稳定性和运行稳定性的舒适性，并且可以减少由于路面颠簸引起的在高振荡频率范围内的减震器的阻尼力特性的不必要的变化引起的噪声和振动。

    Shock absorber having controlled damping force characteristics for use in a suspension system of a vehicle
    3.
    发明授权
    Shock absorber having controlled damping force characteristics for use in a suspension system of a vehicle 失效
    具有受阻的阻尼力特性的减震器用于车辆悬架系统中

    公开(公告)号：US5400245A

    公开(公告)日：1995-03-21

    申请号：US180538

    申请日：1994-01-12

    申请人： Tetsuro Butsuen ,  Hiroshi Uchida ,  Tohru Yoshioka

    发明人： Tetsuro Butsuen ,  Hiroshi Uchida ,  Tohru Yoshioka

    IPC分类号： B60G17/015 ,  B60G17/0165 ,  B60G17/018 ,  B60G17/08 ,  F16F9/50 ,  B60G17/06

    CPC分类号： B60G17/08 ,  B60G17/0165 ,  B60G17/018 ,  B60G2600/184

    摘要： A suspension system of a vehicle for calculating a product of the absolute speed zs of the sprung member and the relative speed zs-zu between the sprung member and the unsprung member and for controlling the damping force characteristic of the shock absorber to be higher if that product is more than the predetermined value and to be lower if the product is less than that value. An insensible range is formed for restricting switching of the damping force characteristic when .vertline.zs.vertline. and .vertline.zs-zu.vertline. are less than the predetermined value .delta.z, .delta.r, so that the damping force characteristic of the shock absorber is kept lower if .vertline.zs.vertline.>.delta.z and .vertline.zs-zu.vertline. or .vertline.zs-zu.vertline. .delta.z and .vertline.zs-zu.vertline. or .vertline.zs-zu.vertline.

    摘要翻译： 一种用于计算弹簧构件的绝对速度zs和簧簧构件与簧下构件之间的相对速度zs-zu的乘积的悬架系统，并且用于控制减震器的阻尼力特性如果 产品超过预定值，如果产品小于该值，则产品将低于该值。 当| zs |时，形成用于限制阻尼力特性的切换的不可见范围 和| zs-zu | 小于预定值δz，delta r，使得如果| zs |> zz | | zs-zu |则减震器的阻尼力特性保持较低。 或| zs-zu | delta z和| zs-zu |则保持较高 或| zs-zu |

    Suspension system for a vehicle
    4.
    发明授权
    Suspension system for a vehicle 失效
    车辆悬挂系统

    公开(公告)号：US5193844A

    公开(公告)日：1993-03-16

    申请号：US697883

    申请日：1991-05-09

    申请人： Tetsuro Butsuen ,  Tohru Yoshioka ,  Hiroshi Uchida ,  Yasunori Yamamoto

    发明人： Tetsuro Butsuen ,  Tohru Yoshioka ,  Hiroshi Uchida ,  Yasunori Yamamoto

    IPC分类号： B60G17/08

    CPC分类号： B60G17/08 ,  B60G2400/102 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/41 ,  B60G2500/102 ,  B60G2800/22 ,  B60G2800/916

    摘要： In a suspension system of a vehicle which the damping force characteristic is changed into three or more characteristics, the damping force characteristic is changed step by step when the damping force characteristic selected by a given control rule is different from the damping force characteristic at that moment in several steps. Also, the running state is detected by detecting means and the damping force characteristic to be selected is limited to two or so from three or more characteristics according to the vehicle running state. The damping force characteristic is changed only within the above selected damping force characteristics based on a given control rule. Through the above, noise and oscillation caused by large changes of the damping force characteristic can be lowered.

    摘要翻译： 在阻尼力特性变为三个以上特性的车辆的悬架系统中，当由给定控制规则选择的阻尼力特性与当时的阻尼力特性不同时，阻尼力特性逐步改变 在几个步骤。 此外，通过检测装置检测行驶状态，根据车辆行驶状态从三个以上的特性将所选择的阻尼力特性限制在两个左右。 基于给定的控制规则，阻尼力特性仅在上述选择的阻尼力特性内改变。 通过上述，可以降低由阻尼力特性的大变化引起的噪声和振动。

    Automobile suspension
    6.
    发明授权
    Automobile suspension 失效
    汽车悬挂

    公开(公告)号：US5248015A

    公开(公告)日：1993-09-28

    申请号：US987178

    申请日：1992-12-08

    申请人： Tohru Yoshioka ,  Tetsuro Butsuen ,  Yasunori Yamamoto

    发明人： Tohru Yoshioka ,  Tetsuro Butsuen ,  Yasunori Yamamoto

    IPC分类号： B60G17/015 ,  F16F9/46

    CPC分类号： F16F9/468 ,  B60G17/015 ,  B60G2400/102 ,  B60G2400/204 ,  B60G2400/41 ,  B60G2400/5182 ,  B60G2400/60 ,  B60G2400/82 ,  B60G2500/102 ,  B60G2600/02 ,  B60G2600/14

    摘要： Disposed between a sprung element and an unsprung element is a shock absorber of multi-degree variable-damping-coefficient type. A damping coefficient of the shock absorber is changed so that an actual damping force generated by the shock absorber becomes equal to a target damping force that causes no sprung vertical motion. Such a change is inhibited when the difference between the damping force and the target force falls in the range of a predetermined value. The value is changed according to the magnitude of an damping coefficient now in selection of the shock absorber. This allows the shock absorber to effectively produce damping forces while at the same time preventing the damping coefficient from being changed too often to avoid the occurrence of chattering. Additionally, control delay due to the presence of a dead band zone is lessened. Traveling stabilization and riding comfort is improved.

    摘要翻译： 在弹簧元件和簧下元件之间设置的是多度可变阻尼系数型的减震器。 减震器的阻尼系数发生变化，使得由减震器产生的实际阻尼力等于不产生弹起垂直运动的目标阻尼力。 当阻尼力和目标力之间的差落在预定值的范围内时，这种变化被抑制。 该值根据减振器选择中的阻尼系数的大小而改变。 这允许减震器有效地产生阻尼力，同时防止阻尼系数被频繁地改变以避免颤动的发生。 此外，由于死区带的存在而导致的控制延迟减小。 行驶稳定和乘坐舒适度得到改善。

    Suspension apparatus with driving state feedback for vehicles
    7.
    发明授权
    Suspension apparatus with driving state feedback for vehicles 失效
    具有车辆驾驶状态反馈的悬架装置

    公开(公告)号：US5598337A

    公开(公告)日：1997-01-28

    申请号：US495872

    申请日：1995-06-28

    申请人： Tetsuro Butsuen ,  Yasunori Yamamoto ,  Tohru Yoshioka

    发明人： Tetsuro Butsuen ,  Yasunori Yamamoto ,  Tohru Yoshioka

    IPC分类号： B60G17/015 ,  B60G13/16 ,  B60G17/018 ,  B60G17/08 ,  G06F7/70

    CPC分类号： B60G17/018 ,  B60G13/16 ,  B60G17/08 ,  B60G2400/204 ,  B60G2400/41 ,  B60G2400/5182 ,  B60G2400/82 ,  B60G2500/10 ,  B60G2600/60 ,  B60G2600/90 ,  B60G2800/916 ,  Y10S180/902

    摘要： A suspension control system for feedback-controlling the sprung mass acceleration signal y.sub.m and a method for introducing the unsprung mass acceleration signal y.sub.L into a tuning circuit to tune gain of an FIR filter. In this system, tuning is performed so as to cancel the road surface input y.sub.m close to a reference frequency (around 10-12 Hz). As a result, the sprung mass acts as a dynamic damper upon the road surface input y.sub.m close to the reference frequency (around 10-12 Hz), however, frequency bands other than the reference frequency band do not receive the contribution of the second term in the equation (6). That is, output from the tuning circuit to an adder becomes almost zero, and normal sky-hook control is performed. Though the sprung mass system acts as a dynamic damper, the unsprung mass system exceeds the sprung mass system in mass, and excessive resonance does not occur.

    摘要翻译： 用于反馈控制簧上质量加速度信号ym的悬架控制系统以及非调频质量加速度信号yL引入调谐电路以调谐FIR滤波器的增益的方法。 在该系统中，执行调谐以抵消接近参考频率（大约10-12Hz）的路面输入ym。 结果，悬挂质量作为接近参考频率（大约10-12Hz）的路面输入ym上的动态阻尼器，然而，除了参考频带之外的频带不会接收第二项的贡献 在式（6）中。 也就是说，从调谐电路到加法器的输出变得几乎为零，并且执行正常的吊钩控制。 虽然弹簧质量系统作为动力阻尼器，但簧下质量系统质量超过弹簧质量系统，并且不会发生过度共振。

    Suspension system for vehicle
    9.
    发明授权
    Suspension system for vehicle 失效
    车辆悬挂系统

    公开(公告)号：US5327983A

    公开(公告)日：1994-07-12

    申请号：US833931

    申请日：1992-02-11

    申请人： Tohru Yoshioka ,  Tetsuro Butsuen ,  Yasunori Yamamoto

    发明人： Tohru Yoshioka ,  Tetsuro Butsuen ,  Yasunori Yamamoto

    IPC分类号： B60G17/015 ,  F16F9/46 ,  B60G17/00

    CPC分类号： B60G17/015 ,  B60G2400/102 ,  B60G2400/204 ,  B60G2400/412 ,  B60G2400/5182 ,  B60G2400/90 ,  B60G2500/10

    摘要： A suspension system for a vehicle has shock absorbers, each provided so as to be associated with one wheel and between sprung parts and unsprung parts, step motors, each being adapted for changing damping force characteristics of one of the shock absorbers by open loop control, and a controller for outputting control signals to the step motors. The controller is adapted for outputting control signals every predetermined time interval so as to make the damping force characteristics of the shock absorbers harder. According to the thus constituted suspension system for a vehicle, it is possible to prevent the driving stability from being lowered even when at least one of the step motors is thrown out of synchronism.

    摘要翻译： 一种用于车辆的悬挂系统具有减震器，每个减震器设置成与一个车轮相关联并且在弹簧部件和簧下部件之间，步进电机，每个都适于通过开环控制来改变其中一个减震器的阻尼力特性， 以及用于向步进电机输出控制信号的控制器。 控制器适于每隔预定的时间间隔输出控制信号，以使减震器的阻尼力特性变得更强。 根据这样构成的车辆用悬架系统，即使至少一台步进电机失去同步，也可以防止行驶稳定性降低。