Pressure controlled auto braking for dynamic vehicle test (DVT)

    公开(公告)号:US11726005B2

    公开(公告)日:2023-08-15

    申请号:US17448764

    申请日:2021-09-24

    IPC分类号: G01M17/007

    CPC分类号: G01M17/0072

    摘要: In accordance with exemplary embodiments, methods and systems are provided for automatically controlling braking of a vehicle during testing. In an exemplary embodiments, a testing assembly is provided that includes a roll test machine and a tester system. The roll test machine includes a flat surface, a plurality of rollers, and one or more optical controllers. The plurality of rollers are configured to engage a vehicle on the flat surface for testing of the vehicle. The one or more optical encoders are configured to generate wheel speed and brake force data for the vehicle during testing of the vehicle. The tester system includes a processor configured to at least facilitate generating instructions for brake pressure to be applied via a braking system of the vehicle during the testing of the vehicle.

    Chassis Dynamometer Having Mechanical Configuration That Reduces Size While Maintaining Functionality

    公开(公告)号:US20180113054A1

    公开(公告)日:2018-04-26

    申请号:US15784680

    申请日:2017-10-16

    IPC分类号: G01M17/007 G01L3/16

    CPC分类号: G01M17/0072 G01L3/16 G01L3/22

    摘要: A dynamometer system may include a first dynamometer roll, a second dynamometer roll, a first motor, and a second motor. The first dynamometer roll is supported for rotation about a rotational axis. The second dynamometer roll is supported for rotation about the rotational axis. The first motor may include an output shaft coupled to the first dynamometer roll for rotation therewith. The first motor may be drivingly connected to the first dynamometer roll at a first location. The second motor may include an output shaft coupled to the second dynamometer roll for rotation therewith. The second motor may be drivingly connected to the second dynamometer roll at a second location. The first motor may be disposed between the first and second locations in a direction extending along the rotational axis. The second location may be disposed between the first and second motors in the direction extending along the rotational axis.

    Chassis dynamometer and method of opening and closing a roller opening of chassis dynamometer
    7.
    发明授权
    Chassis dynamometer and method of opening and closing a roller opening of chassis dynamometer 有权
    底盘测功机及底盘测功机的开卷方式

    公开(公告)号:US09212972B2

    公开(公告)日:2015-12-15

    申请号:US14384091

    申请日:2013-02-25

    发明人: Kazuhisa Otsuki

    IPC分类号: G01M17/007

    CPC分类号: G01M17/0072 G01M17/0074

    摘要: In a conventional chassis dynamometer, when a roller opening formed in a pit cover is closed by an open/close plate, the open/close plate is projected from an upper surface of the pit cover so that irregularities are generated on the upper surface of the pit cover. A chassis dynamometer 1 includes rollers 2, 3 on which wheels of a test vehicle are rested through roller openings 6, 7 formed in a pit cover 5, and an opening open/close mechanism 15 that opens and closes the roller openings 6, 7. The rollers 2, 3 are ascendably and descendably operated by a roller ascent/descent operation mechanism 8. The rollers 2, 3 are operated to descend, and the roller openings 6, 7 are closed by open/close plates 16.

    摘要翻译: 在传统的底盘测功机中,当形成在凹坑盖中的滚筒开口被打开/关闭板关闭时,打开/关闭板从凹坑盖的上表面突出,使得凹坑盖的上表面上产生凹凸 坑盖。 底盘测功机1包括滚子2,3,滚子2,3通过形成在凹坑盖5中的滚筒开口6,7固定在该测试车辆的车轮上,打开和关闭滚筒开口6,7的打开/关闭机构15。 辊2,3通过辊上/下降操作机构8上升和下降地操作。辊2,3下降,辊开口6,7由打开/关闭板16关闭。

    Method for predicting the noise/comfort performance of a vehicle travelling on uneven ground
    8.
    发明授权
    Method for predicting the noise/comfort performance of a vehicle travelling on uneven ground 有权
    用于预测不平坦地面行驶的车辆噪声/舒适性能的方法

    公开(公告)号:US08731878B2

    公开(公告)日:2014-05-20

    申请号:US12990088

    申请日:2009-04-28

    CPC分类号: G01M17/0072 G01M17/045

    摘要: A method is presented for predicting a noise/comfort performance in a cabin of a vehicle with a body-shell and a suspension system linked to the body-shell by at least one point of attachment, with the vehicle rolling at a given speed on a rolling device with a macrorough rolling surface. The method includes: determining a global transfer function of the body-shell, determining a global admittance of the body-shell, determining an impedance of the suspension system, determining, while rolling on the macrorough rolling surface, lockup loads of the suspension system, and combining together the global transfer function of the body-shell, the global admittance of the body-shell, the impedance of the suspension system, and the lockup loads of the suspension system to obtain a prediction of noise/comfort performance (P) inside the cabin.

    摘要翻译: 提出了一种用于通过至少一个附接点来预测具有壳体和与壳体相连的悬架系统的车辆舱室中的噪声/舒适性能的方法,其中车辆以给定速度滚动 滚动装置具有大圆面滚动面。 该方法包括:确定身体壳的全局传递函数,确定体壳的全局导纳,确定悬架系统的阻抗,确定在大面积滚动表面上滚动时悬架系统的锁定负载, 并将身体壳体的全局传递函数,体壳的全局导纳,悬架系统的阻抗以及悬挂系统的锁定负载结合在一起,以获得内部噪声/舒适性能(P)的预测 机舱。

    Test System
    9.
    发明申请
    Test System 有权
    测试系统

    公开(公告)号:US20130124033A1

    公开(公告)日:2013-05-16

    申请号:US13672995

    申请日:2012-11-09

    申请人: HORIBA, Ltd.

    IPC分类号: G07C5/00

    摘要: According to the present invention, a test system 1 that tests a mobile body such as a vehicle, a vessel, and a plane, or an instrument used in the mobile body as an object, and is operable by switching among different operational modes, can accumulate an operating period of a component much more accurately than conventional system, and includes an accumulated operating-time calculating unit 46 for accumulating the operating time of the component, and the accumulated operating-time calculating unit 46 accumulates the operating time of the component only in the predetermined operational mode.

    摘要翻译: 根据本发明,在车辆,船舶,飞机等移动体或者作为移动体使用的仪器作为对象进行测试,并且能够通过不同的动作模式切换而进行操作的测试系统1, 比常规系统更精确地累积组件的操作周期,并且包括用于累积部件的操作时间的累计运行时间计算单元46,并且累积运行时间计算单元46仅累积部件的操作时间 在预定的操作模式中。

    Chassis dynamometer
    10.
    发明授权
    Chassis dynamometer 有权
    底盘测功机

    公开(公告)号:US08037743B2

    公开(公告)日:2011-10-18

    申请号:US12298870

    申请日:2007-04-20

    IPC分类号: G01M17/007

    CPC分类号: G01M17/0072

    摘要: A chassis dynamometer for a vehicle has a motor having a rotor, rollers configured to be operably connected to wheels of the vehicle, a flange portion extending inward in a radial direction from each of the rollers, and a rotor bracket for supporting the rotor of the motor. The flange portion and the rotor bracket are connected via a torque meter capable of measuring at least an outer peripheral tangential force of the roller.

    摘要翻译: 一种用于车辆的底盘测功机具有具有转子的电动机,构造成可操作地连接到车辆的车轮的辊,从每个辊沿径向向内延伸的凸缘部分和用于支撑转子的转子的转子支架 发动机。 凸缘部分和转子支架通过能够测量辊的至少外周切向力的扭矩计连接。