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    Flat-track unit for motor vehicle test beds
    3.
    发明授权
    Flat-track unit for motor vehicle test beds 失效
    机动车试验台平车单位

    公开(公告)号：US4953391A

    公开(公告)日：1990-09-04

    申请号：US400732

    申请日：1989-08-30

    申请人： Karl Schober ,  Norbert Schaub

    发明人： Karl Schober ,  Norbert Schaub

    IPC分类号： G01M17/007 ,  G01M17/04 ,  G01M15/00

    CPC分类号： G01M17/0074 ,  G01M17/045

    摘要： The invention relates to a flat-track unit for motor vehicle test beds comprising a roadway-simulating belt guided over two rollers. So that skew angles between belt running direction and wheel plane can be realized as close to reality as possible on the test bed, the frame supporting the guide rollers of the belt is pivotably mounted about a vertical axis and is provided with a pivot drive variable in a high-frequency manner. The drive and braking unit for the rollers is arranged so as to be spaced from the flat-track unit and mounted in a fixed position in the vertical direction, while it is displaceable on a circular arc-shaped horizontal guide running concentrically to the vertical axis. A corresponding displacement drive is provided for the drive and brake unit. The latter causes the drive and braking unit to follow, at a comparatively slow speed, the belt running directions of the flat-track unit and on which belt torsional oscillations are superimposed. A universal-joint shaft is arranged between flat-track unit and the drive and braking unit and is held in an approximately straightened position.

    摘要翻译： 本发明涉及一种用于机动车辆试验台的平轨单元，其包括在两个辊上引导的道路模拟带。 因此，可以在试验台上尽可能接近实现带运行方向和车轮平面之间的倾斜角度，支撑带的导向辊的框架围绕垂直轴可枢转地安装，并且设置有枢轴驱动变量 高频的方式。 辊的驱动和制动单元布置成与平轨单元间隔开，并且在垂直方向上固定在一个固定位置，同时可在与垂直轴线同心运行的圆弧形水平导轨上移动 。 为驱动和制动单元提供相应的位移驱动。 后者使得驱动和制动单元以相对较慢的速度跟随平轨单元的皮带行进方向，并且在哪个皮带扭转振动被叠加。 万向节轴设置在平轨单元与驱动和制动单元之间，并保持在大致拉直的位置。

    Flat unit for motor vehicle test beds
    4.
    发明授权
    Flat unit for motor vehicle test beds 失效
    机动车试验台的平面单元

    公开(公告)号：US4942762A

    公开(公告)日：1990-07-24

    申请号：US402565

    申请日：1989-09-05

    申请人： Karl Schober ,  Norbert Schaub

    发明人： Karl Schober ,  Norbert Schaub

    IPC分类号： G01M17/007 ,  G01M17/04

    CPC分类号： G01M17/0074 ,  G01M17/045

    摘要： The invention relates to a flat-track unit for motor-vehicle test beds in which a roadway-simulating belt is guided over two rollers lying in parallel. The upper test side of the belt lies roughly at ground level and accommodates a vehicle wheel and can be excited by a supporting shoe below the belt via an excitation cylinder to develop vertical oscillations which are to simulate roadway vibrations. The two belt-guiding rollers are in turn mounted in a frame which in turn is guided so as to be vertically movable and can be excited by a further excitation cylinder to develop vertical oscillations. In the process, the supporting shoe oscillations are limited to short-stroke and high-frequency oscillation portions of simulated driving conditions whereas the frame is excited merely by the long-stroke and low-frequency oscillation portions. This offers the advantage that long-stroke vertical oscillations can also be reproduced in a manner close to reality, but nonetheless, the vertical oscillations of the test side, relative to the belt guide rollers, are only relatively small. By the use of hollow pistons, the required excitation energy is kept within acceptable limits and over all weight is reduced.

    摘要翻译： 本发明涉及一种用于机动车辆试验台的平轨单元，其中巷道模拟带被引导平行于两个辊。 皮带的上部测试侧大致处于地平面并且容纳车轮，并且可以通过激励气缸通过皮带下方的支撑靴激发，以产生模拟道路振动的垂直振荡。 两个带引导辊又安装在框架中，框架又被引导以便可垂直移动，并且可以被另一个励磁气缸激发以产生垂直振荡。 在此过程中，支撑鞋的振动被限制在模拟驾驶条件的短行程和高频振荡部分，而帧仅由长行程和低频振荡部分激发。 这提供了这样的优点：长行程垂直振荡也可以以接近现实的方式再现，但是尽管如此，测试侧相对于带引导辊的垂直振荡仅相对较小。 通过使用中空活塞，所需的激发能量保持在可接受的限度内，并且所有重量都降低。