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    Apparatus for determining steer angle of a motor vehicle
    37.
    发明申请
    Apparatus for determining steer angle of a motor vehicle 失效

    公开(公告)号：US20020133278A1

    公开(公告)日：2002-09-19

    申请号：US09805487

    申请日：2001-03-13

    发明人： Eldon Gerrald Leaphart

    IPC分类号： B62D005/00

    CPC分类号： B62D15/02 ,  B60G2400/0523 ,  B60G2400/104 ,  B60G2400/208 ,  B60G2400/412 ,  B60G2400/4122 ,  B60G2401/26 ,  B60G2800/22 ,  B60G2800/24 ,  B60G2800/7022 ,  B60G2800/91 ,  B60G2800/922 ,  B60G2800/94

    摘要： A steering angle sensor providing an output signal indicating relative position within a full rotation, such as a relative dual track steering sensor, provides a signal to a digital processor coupled to a non-volatile memory for storing retained values of a centered vehicle steer angle, a rotation count and a mounting bias angle. The processor derives three test steer angle values utilizing, respectively, (1) the retained rotation count, (2) one greater than the retained rotation count and (3) one less than the retained rotation count and chooses as an initialized steer angle one of the three test steer angles that differs from the retained value of a centered vehicle steer angle by less than a first calibration value. If such an initialized steer angle is found, the processor verifies that the initialized steer angle differs from an estimated steer angle derived in response to signals from the vehicle yaw rate sensor and lateral acceleration sensor by less than a second calibration value less than the first calibration value and, if so, accepts the verified initialized steer angle as the centered vehicle steer angle. If not, the processor preferably reverts to a full recalibration without use of the retained values in the non-volatile memory. Preferably, the first calibrated value is 180 rotational degrees, so that the initialized steering angle value may be assumed to be within the same rotation as the centered angle.

    Damper based vehicle yaw control
    38.
    发明申请
    Damper based vehicle yaw control 失效
    基于阻尼器的车辆偏航控制

    公开(公告)号：US20020128760A1

    公开(公告)日：2002-09-12

    申请号：US09963765

    申请日：2001-09-26

    发明人： Mark Olen Bodie ,  Aleksander Boguslaw Hac

    IPC分类号： G06F017/00

    CPC分类号： B60G17/0162 ,  B60G17/0195 ,  B60G17/08 ,  B60G2400/0523 ,  B60G2400/104 ,  B60G2400/208 ,  B60G2400/41 ,  B60G2400/822 ,  B60G2500/10 ,  B60G2600/184 ,  B60G2600/1873 ,  B60G2800/212 ,  B60G2800/215 ,  B60G2800/24 ,  B60G2800/244 ,  B60G2800/246 ,  B60G2800/91 ,  B60G2800/922

    摘要： Controllable dampers are used to improve vehicle responses and stability during severe vehicle handling maneuvers. A total handling damping value for the vehicle is derived, preferably from the greatest of a yaw rate error value, a lateral acceleration value and a time derivative of lateral acceleration value. In addition, a control ratio of front axle roll damping to total roll damping is derived, preferably from the yaw rate error value, an oversteer/understeer indication and possibly vehicle speed. From these values, handling damping values are derived for each wheel of the vehicle and blended with damping values for the same wheels derived from suspension component movement to determine a corner damping command for each controllable damper. Preferably, the damping values derived from suspension component movement are shifted away from damping control of the vehicle body toward handling damping control when yaw rate error is large in magnitude.

    摘要翻译： 可控制的阻尼器用于在严重的车辆处理操作期间改善车辆响应和稳定性。 导出车辆的总处理阻尼值，优选地从横摆速度误差值，横向加速度值和横向加速度值的时间导数的最大值中得出。 此外，优选地从横摆率误差值，过度转向/不足转向指示和可能的车速导出前轴滚动阻尼与总滚动阻尼的控制比。 根据这些值，对于车辆的每个车轮导出处理阻尼值，并与来自悬架部件运动的相同车轮的阻尼值混合，以确定每个可控阻尼器的拐角阻尼命令。 优选地，当横摆率误差大时，从悬架分量移动导出的阻尼值从车身的阻尼控制转移到处理阻尼控制。

    Failure diagnosis method for dump truck and device therefor
    40.
    发明授权
    Failure diagnosis method for dump truck and device therefor 失效
    自卸车故障诊断方法及其设备

    公开(公告)号：US06175788B1

    公开(公告)日：2001-01-16

    申请号：US09155736

    申请日：1998-10-05

    申请人： Nobuki Hasegawa ,  Yukio Sugano ,  Genichirou Watanabe

    发明人： Nobuki Hasegawa ,  Yukio Sugano ,  Genichirou Watanabe

    IPC分类号： B60P104

    CPC分类号： B60G17/0185 ,  B60G2300/026 ,  B60G2400/25 ,  B60G2400/252 ,  B60G2400/38 ,  B60G2400/50 ,  B60G2400/70 ,  B60G2600/042 ,  B60G2600/08 ,  B60G2600/124 ,  B60G2800/91 ,  B60G2800/914 ,  B60G2800/92 ,  B60G2800/95 ,  B60G2800/97 ,  B60P1/045 ,  B60P1/283

    摘要： It is possible to prevent generation of failure in a dump truck and to diagnose a true cause of failure in a short period of time. Thus the present failure diagnosis method diagnoses an operation and function of at least one of respective devices, such as an engine at a predetermined engine rotational speed, a transmission, respective axles, respective suspensions, hydro-pneumatic systems, and a brake while a vessel body (4) descends after evacuation of a load. The failure diagnosis device comprises body operating means (50) for raising or lowering a vessel body, a direction switching valve (7) for receiving a command from the body operating means to lower the vessel body, and a self-diagnosis control device (11) for using state detecting means (20) to detect and store a state of at least one of the respective devices at a predetermined engine rotational speed when the body operating means is at a predetermined operative position and for comparing a magnitude of a detected value and a rate of change with reference values on the basis of hysteresis data when carrying out failure diagnosis.

    摘要翻译： 可以防止自卸车中发生故障，并在短时间内诊断故障原因。 因此，本故障诊断方法诊断各个装置的操作和功能，例如在预定的发动机转速下的发动机，变速器，各个轴，各自的悬架，液压气动系统和制动器中的至少一个，而船舶 身体（4）在撤离负载后下降。 故障诊断装置包括用于升高或降低容器主体的主体操作装置（50），用于从主体操作装置接收命令以降低容器主体的方向切换阀（7），以及自诊断控制装置 ），用于当所述身体操作装置处于预定的操作位置时，使用状态检测装置（20）来检测并存储处于预定的发动机转速的各个装置中的至少一个的状态，并且将检测值的大小与 在执行故障诊断时基于滞后数据的参考值的变化率。