Electrohydraulic control device for a drive train of a machine
    1.
    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:US5947242A

    公开(公告)日:1999-09-07

    申请号:US923898

    申请日:1997-09-04

    申请人: Todd D. Creger

    发明人: Todd D. Creger

    IPC分类号: F16H45/00 F16H61/14 B60K41/28

    摘要: An electrohydraulic control device for a drive train of a machine is disclosed. The machine includes an engine, a torque converter having an impeller element, a reactor element and a turbine element, an impeller clutch drivingly connected between the engine and the impeller element, and a set of service brakes. An impeller brake is drivingly connected between the impeller element and a stationary support member. A controller receives at least one input signal representing an operation of the drive train and responsively controls one of the impeller clutch, impeller brake and brake set.

    摘要翻译: 公开了一种用于机器的传动系的电动液压控制装置。 机器包括发动机,具有叶轮元件,反应器元件和涡轮机元件的变矩器,驱动地连接在发动机和叶轮元件之间的叶轮离合器以及一组行车制动器。 叶轮制动器驱动地连接在叶轮元件和固定支撑构件之间。 控制器接收表示传动系的操作的至少一个输入信号,并且响应地控制叶轮离合器,叶轮制动器和制动器组中的一个。

    Tube expander and method
    2.
    发明授权
    Tube expander and method 失效
    管扩管器及方法

    公开(公告)号:US4262518A

    公开(公告)日:1981-04-21

    申请号:US58058

    申请日:1979-07-16

    CPC分类号: B21D39/20 Y10T29/53122

    摘要: A tube expander (10) for extrudably deforming tubes (12) into conformity with a flange (16) has a plurality of first and second forming members (28,30) circumferentially arranged on a mandrel (20). In an initial position, the forming members (28,30) are axially offset and radially retracted for ease of insertion into the bore (13) of the tube (12). After insertion, the mandrel (20) is partially withdrawn by an actuator (64) and by such action, the forming members (28,30) are brought together in an abutting, axially aligned, and radially expanded relationship such that workpiece-contacting surfaces (40,42) of the forming members (28,30) are brought into substantially continuous circumferential contact with the tube bore 13. The workpiece-contacting surfaces (40,42) are maintained in continuous circumferential contact with the tube bore 13 as the forming members (28,30) and the mandrel (20) are withdrawn from the tube end, thereby uniformly extruding the tube.

    摘要翻译: 用于使管(12)可挤出变形成与凸缘(16)一致的管膨胀器(10)具有周向布置在心轴(20)上的多个第一和第二成形构件(28,30)。 在初始位置,形成构件(28,30)被轴向偏移并且径向缩回,以便易于插入到管(12)的孔(13)中。 在插入之后,心轴(20)由致动器(64)部分地缩回,并且通过这种作用,成形构件(28,30)以邻接的,轴向对齐的和径向扩张的关系被带到一起,使得工件接触表面 (40,42)与管孔13基本上连续地周向接触。工件接触表面(40,42)保持与管孔13连续周向接触,因为 形成构件(28,30)和心轴(20)从管端抽出,从而均匀地挤出管。

    Simplified powertrain load prediction method and system using computer based models
    3.
    发明授权
    Simplified powertrain load prediction method and system using computer based models 失效
    简化的动力总成负荷预测方法和使用基于计算机的模型的系统

    公开(公告)号:US06208925B1

    公开(公告)日:2001-03-27

    申请号:US09299544

    申请日:1999-04-26

    IPC分类号: G06F700

    摘要: A simplified method and system for determining a loading condition on a powertrain of a machine resulting from a loading condition on an implement thereof. The method includes the steps of inputting a predetermined plurality of parameter signals representative of the loading condition on the implement into an implement loading model to determine a plurality of implement loading modeled values as a function of the inputted loading parameter signals and inputting the implement loading modeled values into a kinematic linkage model to determine a plurality of modeled linkage loading values as a function of the inputted implement loading modeled values and a plurality of known linkage parameter values and inputting the modeled linkage loading values into a machine powertrain loading model to determine a plurality of powertrain loading modeled values indicative of the loading condition on the powertrain.

    摘要翻译: 一种简化的方法和系统,用于确定由其工具上的装载状态导致的机器的动力系的负载状况。 该方法包括以下步骤:将表示装置上的装载状态的预定多个参数信号输入到工具装载模型中,以确定作为输入的加载参数信号的函数的多个实施装载建模值,并输入建模装载 值作为运动学连杆模型,以根据输入的实施负荷建模值和多个已知的联动参数值确定多个建模的联动装载值,并将建模的联动装载值输入到机械动力系装载模型中以确定多个 的动力总成负载模拟值表示动力系统的负载状况。

    Method and apparatus for controlling a hitch system on a work machine
    4.
    发明授权
    Method and apparatus for controlling a hitch system on a work machine 有权
    用于控制作业机械上的牵引系统的方法和装置

    公开(公告)号:US6119786A

    公开(公告)日:2000-09-19

    申请号:US394144

    申请日:1999-09-10

    IPC分类号: A01B63/111 A01B63/112

    CPC分类号: A01B63/1115

    摘要: A method and apparatus for controlling a hitch system on a work machine, the hitch system having a work implement attached. The method and apparatus includes determining at least one force applied to at least one of the work machine and the work implement, determining at least one distance from a predetermined point on the hitch system to a desired at least one point on at least one of the work machine and the work implement, calculating at least one moment for at least one of the work machine and the work implement, responsively determining a desired pressure to apply to a powered linear actuator located on the hitch system to obtain a desired load distribution point on the work machine, and applying the desired pressure to the powered linear actuator.

    摘要翻译: 一种用于控制作业机械上的牵引系统的方法和装置,该牵引系统具有附接的作业工具。 该方法和装置包括确定施加到作业机械和作业工具中的至少一个的至少一个力,确定从挂钩系统上的预定点到至少一个点上至少一个点上的至少一个距离 工作机器和作业工具,对至少一个作业机器和作业工具计算至少一个时刻,响应地确定施加到位于牵引系统上的动力线性致动器的期望压力以获得期望的负载分布点 工作机器,并将所需的压力施加到动力线性致动器。

    Apparatus and method for cleaning radiator fins
    5.
    发明授权
    Apparatus and method for cleaning radiator fins 失效
    散热器散热片清洗装置及方法

    公开(公告)号:US5879466A

    公开(公告)日:1999-03-09

    申请号:US748762

    申请日:1996-11-14

    IPC分类号: B08B3/02 F01P11/06 F28G9/00

    摘要: An apparatus and method for periodically cleaning the fins of a radiator of an internal combustion engine using a nozzle system with at least one nozzle directed toward the fins, and a cleaning agent delivery system connected to the nozzle system. The apparatus determines the presence of airflow resistance through the fins, generates an airflow resistance signal, delivers the airflow resistance signal to a control system, and delivers a control signal to the cleaning agent delivery system.

    摘要翻译: 一种使用具有至少一个朝向翅片的喷嘴的喷嘴系统周期性地清洁内燃机的散热器的翅片的装置和方法,以及连接到喷嘴系统的清洁剂输送系统。 该装置确定通过翅片的气流阻力的存在,产生气流阻力信号,将气流阻力信号传送到控制系统,并将控制信号传送到清洁剂输送系统。

    Proportional valve control apparatus for fluid systems
    7.
    发明授权
    Proportional valve control apparatus for fluid systems 失效
    用于流体系统的比例阀控制装置

    公开(公告)号:US4712376A

    公开(公告)日:1987-12-15

    申请号:US921506

    申请日:1986-10-22

    摘要: An apparatus for controlling the fluid flow delivered to work elements of a work vehicle. In the operation of hydraulic work vehicles, when quick or multiple implement movement is required, the fluid pumps often are requested to surpass their capability in providing fluid flow to the work elements. A flow-limiting situation then occurs wherein some of the work elements are not receiving the requested flow and therefore cannot perform their requested functions. To solve this problem, the total available flow and the total requested flow from the pumps are monitored. If the total requested flow is not great enough to cause a flow-limiting situation, the operators demands are communicated to control valves which control fluid flow to the respective work elements. However, if the total requested flow is greater than the total available flow, the operators demand signals are "scaled down" in order to prevent a flow-limiting situation. The signals are communicated to the control valves in proportion to the operator demand. Therefore, the work elements move precisely as the operator demands even under high load conditions. This apparatus proves particularly useful on machines such as hydraulic excavators, where multiple work elements are used simultaneously, and precise controllability is desired.

    摘要翻译: 一种用于控制输送到工作车辆的工作元件的流体流量的装置。 在液压工作车辆的操作中,当需要快速或多重工具移动时,通常要求流体泵超过其向工作元件提供流体流动的能力。 然后发生流限制情况,其中一些工作元件不接收所请求的流,因此不能执行其所请求的功能。 为了解决这个问题,监测总可用流量和来自泵的总请求流量。 如果总请求流量不足以导致流量限制情况,则操作者的要求被传送到控制流体流向相应工作元件的控制阀。 然而,如果总请求流量大于总可用流量,则为了防止流量限制情况,操作员要求的信号被“缩小”。 这些信号与操作员的需求成比例地传递给控制阀。 因此,即使在高负载条件下,操作者也需要精确地移动工作元件。 该设备被证明对于诸如液压挖掘机的机器特别有用,其中同时使用多个工作元件,并且需要精确的可控性。

    Apparatus and method for controlling a variable displacement pump
    9.
    发明授权
    Apparatus and method for controlling a variable displacement pump 失效
    用于控制可变排量泵的装置和方法

    公开(公告)号:US6073442A

    公开(公告)日:2000-06-13

    申请号:US65273

    申请日:1998-04-23

    摘要: A method for controlling the displacement of a variable displacement hydraulic pump to produce a desired flow of fluid is disclosed. The method includes the steps of: determining that the machine is being operated in a digging cycle; determining a desired displacement of the pump, the desired pump displacement being less than the maximum pump displacement; and controlling the pump displacement to the desired pump displacement to produce a desired flow of fluid.

    摘要翻译: 公开了一种用于控制可变排量液压泵的位移以产生期望的流体流的方法。 该方法包括以下步骤:确定机器正在挖掘循环中运行; 确定泵的期望位移,期望的泵排量小于最大泵排量; 并且将泵排量控制到所需的泵排量以产生所需的流体流。

    Apparatus and method for calibrating a computer based model of an
attribute of a mobile machine
    10.
    发明授权
    Apparatus and method for calibrating a computer based model of an attribute of a mobile machine 失效
    用于校准移动机器的属性的基于计算机的模型的装置和方法

    公开(公告)号:US5910176A

    公开(公告)日:1999-06-08

    申请号:US739470

    申请日:1996-10-28

    申请人: Todd D. Creger

    发明人: Todd D. Creger

    摘要: Apparatus and method for estimating an attribute associated with a mobile machine. The machine has an engine and a powertrain. The powertrain includes a torque converter coupled to the engine. The apparatus and method sense a plurality of parameters of the machine and responsively produce a plurality of respective parameter signals and calculating an estimated value of the attribute as a function of the parameter signals using a computer based model. The apparatus and method further calculates first and second estimated values of a torque converter input torque, compares the first and second torque converter input torque estimate signals and responsively calibrates the computer based model.

    摘要翻译: 用于估计与移动机相关联的属性的装置和方法。 该机器具有发动机和动力总成。 动力总成包括耦合到发动机的变矩器。 该装置和方法感测机器的多个参数,并且响应地产生多个相应的参数信号,并且使用基于计算机的模型来计算作为参数信号的函数的属性的估计值。 该装置和方法进一步计算变矩器输入转矩的第一和第二估计值,比较第一和第二变矩器输入转矩估计信号,并响应地校准基于计算机的模型。