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    Automobile suspension
    2.
    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
    3.
    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
    5.
    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。

    Suspension system for a vehicle
    7.
    发明授权
    Suspension system for a vehicle 失效
    车辆悬挂系统

    公开(公告)号：US5269557A

    公开(公告)日：1993-12-14

    申请号：US783183

    申请日：1991-10-28

    申请人： Tetsuro Butsuen ,  Yasunori Yamamoto ,  Tohru Yoshioka

    发明人： Tetsuro Butsuen ,  Yasunori Yamamoto ,  Tohru Yoshioka

    IPC分类号： B60G17/015 ,  F16F9/46 ,  B60G11/26

    CPC分类号： F16F9/468 ,  B60G17/015 ,  B60G2400/10 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/41 ,  B60G2400/518 ,  B60G2400/82 ,  B60G2400/90 ,  B60G2400/91 ,  B60G2500/10 ,  B60G2600/184

    摘要： In a suspension system for a vehicle comprising a shock absorber of which damping force characteristics can be changed into four or more characteristics, detecting means detect the oscillation frequency range of the sprung member of the vehicle and a bumpy road. From the four or more damping force characteristics of the shock absorber, the number of characteristics on the higher level side are limited to two or so when the sprung member is in a low frequency oscillation range, that of the characteristics on the lower level side are limited to two or so when the sprung member is in a high frequency oscillation range, and that of the characteristics on the medium level side are limited to two or so when a road is bumpy. The damping force characteristic of the shock absorber is selected and changed on the basis of a given control rule only within the limited damping force characteristics. Thus, it is possible to prevent noise and oscillation from being caused by the large change of the damping force characteristic. Furthermore, there can be obtained comfortableness to ride in and stability on a high level.

    摘要翻译： 在一种用于车辆的悬架系统中，检测装置检测车辆弹簧构件和颠簸路的振荡频率范围，该缓冲器包括阻尼力特性可以改变为四个或更多特性的减震器。 从减震器的四个以上的阻尼力特性来看，当弹簧构件处于低频振荡范围时，较高侧的特性数量被限制在两个左右，而下一侧的特性的数量是 当弹簧构件处于高频振荡范围时限制为两个左右，而当路面颠簸时，中等水平侧的特性被限制在两个左右。 基于给定的控制规则，仅在有限的阻尼力特性内选择和改变减震器的阻尼力特性。 因此，可以防止噪声和振动由阻尼力特性的大的变化引起。 此外，可以获得在高水平上的舒适性和稳定性。

    Suspension system for a vehicle
    8.
    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。

    Suspension system for a vehicle
    9.
    发明授权
    Suspension system for a vehicle 失效
    车辆悬架系统

    公开(公告)号：US5172929A

    公开(公告)日：1992-12-22

    申请号：US783137

    申请日：1991-10-28

    申请人： Tetsuro Butsuen ,  Yasunori Yamamoto ,  Tohru Yoshioka

    发明人： Tetsuro Butsuen ,  Yasunori Yamamoto ,  Tohru Yoshioka

    IPC分类号： B60G17/015 ,  F16F9/46

    CPC分类号： B60G17/015 ,  F16F9/468 ,  B60G2400/10 ,  B60G2400/104 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/41 ,  B60G2400/518 ,  B60G2400/82 ,  B60G2400/90 ,  B60G2400/91 ,  B60G2500/10 ,  B60G2600/02 ,  B60G2800/24

    摘要： In a suspension system for a vehicle comprising a shock absorber of which damping force characteristic can be changed into three or more characteristics, the predetermined running state of the vehicle is detected by detecting means and there is limited to two or so the number of the damping force characteristics to be selected from the three or more characteristics of the shock absorber according to the running state. The damping force characteristic of the shock absorber is selected and changed on the basis of a given control rule only within the limited damping force characteristics. In addition, the threshold of the control rule is changed such that the damping force characteristic of the shock absorber can easily be changed into the higher or lower level side according to the rate of change in the predetermined running state. Thus, it is possible to prevent noise and oscillation from being caused by the large change of the damping force characteristic. Furthermore, there can be obtained comfortableness to ride in and stability on a high level.

    摘要翻译： 在一种用于车辆的悬架系统中，其特征在于阻尼力特性可以改变为三个或更多个特征的减震器，通过检测装置检测车辆的预定行驶状态，并且限制了两个或更多个阻尼 根据运行状态从减震器的三个或更多个特性中选择力特性。 基于给定的控制规则，仅在有限的阻尼力特性内选择和改变减震器的阻尼力特性。 此外，改变控制规则的阈值，使得减震器的阻尼力特性可以根据预定行驶状态的变化率容易地变成高级或低级侧。 因此，可以防止噪声和振动由阻尼力特性的大的变化引起。 此外，可以获得在高水平上的舒适性和稳定性。