Method and apparatus for calculating work cycle times
    1.
    发明授权
    Method and apparatus for calculating work cycle times 失效
    计算工作周期时间的方法和装置

    公开(公告)号:US5955706A

    公开(公告)日:1999-09-21

    申请号:US979885

    申请日:1997-11-26

    CPC classification number: E02F9/2025 E02F3/434

    Abstract: In one aspect of the present invention, a method for determining the work cycle of an earth moving machine is disclosed. The machine has a transmission, a work implement, and a lift cylinder and a tilt cylinder connected to the work implement. The method includes the steps of determining a lift cylinder head end pressure, a displacement of the lift cylinder, a displacement of the tilt cylinder, and a direction of travel of the machine. The method further includes determining the work cycle of the machine in response to the displacement of the tilt and lift cylinders, and the lift cylinder head end pressure.

    Abstract translation: 在本发明的一个方面,公开了一种用于确定土方机械的工作循环的方法。 该机具有传动装置,工作装置,以及连接到工作装置的提升缸和倾斜缸。 该方法包括确定提升缸头端压力,提升缸的位移,倾斜缸的位移以及机器的行进方向的步骤。 该方法还包括响应于倾斜和提升缸的位移以及提升缸头端压力来确定机器的工作循环。

    Method for determining the transmission output torque for an earth moving machine
    3.
    发明授权
    Method for determining the transmission output torque for an earth moving machine 失效
    确定土方机械传动输出扭矩的方法

    公开(公告)号:US06560549B2

    公开(公告)日:2003-05-06

    申请号:US08996286

    申请日:1997-12-22

    Abstract: The present invention is adapted to provide a method for determining the torque of a driveshaft. In the preferred embodiment a drivetrain includes a front and a rear drivetrain. The drivetrain is also connected to an engine, torque converter, front and rear axle and a transmission. In one embodiment, the ability to determine the transmission output torque for an earth moving machine includes determining an output torque of the converter and a gear reduction of the engine, and then responsively determining the front and rear driveshaft torque in response to the converter output torque and the engine gear reduction. The driveshaft torque calculations may be performed while the earth moving machine is operating. The resulting front and rear driveshaft torque calculations may be used to determine an axle damage index, or axle life calculations.

    Abstract translation: 本发明适用于提供一种用于确定驱动轴的扭矩的方法。 在优选实施例中,传动系包括前传动系和后传动系。 传动系统还连接到发动机,变矩器,前桥和后桥以及变速器。 在一个实施例中,确定土方机械的变速器输出扭矩的能力包括确定转换器的输出扭矩和发动机的齿轮减速,然后响应于转换器输出转矩响应地确定前驱动轴和后驱动轴的转矩 并减少发动机齿轮。 驱动轴扭矩计算可以在土方机械运行时进行。 所得到的前后驱动轴扭矩计算可用于确定轴损伤指数或轴寿命计算。

    System and method for controlling vehicle speed
    5.
    发明授权
    System and method for controlling vehicle speed 失效
    控制车速的系统和方法

    公开(公告)号:US07637845B2

    公开(公告)日:2009-12-29

    申请号:US11543941

    申请日:2006-10-06

    Abstract: A system is provided for controlling the speed of a vehicle having a power plant and a transmission. A control unit is configured to receive a signal indicative of the speed of the vehicle. The control unit is further configured to determine a desired output speed of the power plant based on the signal indicative of the speed of the vehicle, a signal indicative of the gear ratio of the transmission, and a desired vehicle speed associated with the gear ratio. The control unit is also configured to send a signal to the power plant, such that power plant operates at an output speed that substantially maintains the desired vehicle speed in a manner substantially independent of a magnitude of load on the power plant.

    Abstract translation: 提供一种用于控制具有发电厂和变速器的车辆的速度的系统。 控制单元被配置为接收指示车辆速度的信号。 控制单元还被配置为基于指示车辆速度的信号,表示变速器的传动比的信号和与传动比相关联的期望车速来确定发电厂的期望输出速度。 控制单元还被配置为向发电厂发送信号,使得发电厂以基本上以与发电厂上的负载大小无关的方式基本保持期望车辆速度的输出速度运行。

    Electrohydraulic control device for a drive train of a machine
    7.
    发明授权
    Electrohydraulic control device for a drive train of a machine 失效
    机电传动系电液控制装置

    公开(公告)号:US5613581A

    公开(公告)日:1997-03-25

    申请号:US584506

    申请日:1996-01-11

    Abstract: An electrohydraulic control device for a drive train of a machine including an engine, a transmission, a torque converter, and an impeller clutch is disclosed. A manually operated impeller clutch pedal produces an impeller clutch pedal signal in response to the position of the impeller clutch pedal. An impeller clutch electrohydraulic valve produces fluid flow to the impeller clutch to controllably engage and disengage the impeller clutch. An impeller clutch pressure curve that is responsive to the impeller clutch pedal position is stored in memory. A rotary position switch selects a desired rimpull setting indicative of a desired reduction in rimpull and produces a desired rimpull signal. An electronic controller receives the desired rimpull signal and reconfigures the impeller clutch pressure curve. Thereafter, the electronic controller receives the impeller clutch pedal signal and controllably actuates the electrohydraulic valve to produce a desired impeller clutch pressure defined by the impeller clutch pressure curve.

    Abstract translation: 公开了一种用于包括发动机,变速器,变矩器和叶轮离合器的机器的传动系的电动液压控制装置。 手动操作的叶轮离合器踏板响应叶轮离合器踏板的位置产生叶轮离合器踏板信号。 叶轮离合器电动液压阀产生流向叶轮离合器的流体,以可控制地接合和分离叶轮离合器。 响应于叶轮离合器踏板位置的叶轮离合器压力曲线被存储在存储器中。 旋转位置开关选择指示轮辋桨的期望减小的期望的轮辋桨距设置,并产生期望的轮辋桨信号。 电子控制器接收所需的轮辋信号并重新配置叶轮离合器压力曲线。 此后,电子控制器接收叶轮离合器踏板信号并且可控地致动电动液压阀以产生由叶轮离合器压力曲线限定的期望的叶轮离合器压力。

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