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11. 发明授权

US5467829A Automatic lift and tip coordination control system and method of using same 失效
标题翻译：自动升降台协调控制系统及其使用方法
公开(公告)号：US5467829A
公开(公告)日：1995-11-21
申请号：US159275
申请日：1993-11-30
申请人： James C. Barton , Kevin J. Lueschow , Ken L. Stratton
发明人： James C. Barton , Kevin J. Lueschow , Ken L. Stratton
IPC分类号： E02F3/84 , E02F3/43 , E02F3/85 , E02F3/76 , G06F15/50
CPC分类号： E02F3/432
摘要： An automatic lift and tip coordination system for use in connection with an off-highway vehicle having an implement causes an automatic adjustment to the implement lift actuators in response to an operator change in the implement tip angle so that the implement height remains constant.
摘要翻译：与具有工具的非公路车辆一起使用的自动提升和尖端协调系统响应于操作者在工具尖端角度的变化而自动调节工具升降致动器，使得工具高度保持恒定。

12. 发明授权

US07324880B2 Method for detecting an abnormal lifting cycle and work machine using same 有权
标题翻译：用于检测异常提升循环的方法和使用它的作业机器
公开(公告)号：US07324880B2
公开(公告)日：2008-01-29
申请号：US10868462
申请日：2004-06-15
申请人： Kevin J. Lueschow , Jeffrey J. Simmons
发明人： Kevin J. Lueschow , Jeffrey J. Simmons
IPC分类号： G06F19/00
CPC分类号： E02F9/20 , E02F9/26
摘要： An abnormal lifting cycle of a work machine lift component can be indicative of operator error and/or a fault within a lift component coupler. The present disclosure includes a method of detecting a fault for a lift component coupler of a work machine. Pressure within at least one hydraulic cylinder of the coupler is sensed during at least a portion of a lifting cycle of the lift component. A condition of the lifting cycle can be determined by detecting a magnitude of asymmetry within a plurality of the sensed pressures. An abnormal condition of the lifting cycle is indicated if the magnitude of the asymmetry of the plurality of the sensed pressures is outside of a predetermined range of asymmetry.
摘要翻译：工作机械提升部件的异常提升周期可以指示操作者错误和/或升降部件联接器内的故障。本公开包括检测作业机械的电梯部件联接器的故障的方法。在提升部件的提升循环的至少一部分期间感测到联接器的至少一个液压缸内的压力。提升循环的条件可以通过检测多个感测压力内的不对称的大小来确定。如果多个感测压力的不对称的大小超出预定的不对称范围，则指示提升循环的异常状况。

13. 发明授权

US5951258A Torque limiting control system for a hydraulic work machine 失效
标题翻译：液压作业机械转矩限制控制系统
公开(公告)号：US5951258A
公开(公告)日：1999-09-14
申请号：US890627
申请日：1997-07-09
申请人： Kevin J. Lueschow , Stephen V. Lunzman
发明人： Kevin J. Lueschow , Stephen V. Lunzman
IPC分类号： F02D29/04 , F04B49/06 , F15B11/00 , F04B49/00
CPC分类号： F04B49/065 , F04B2201/0206 , F04B2203/0603 , F04B2203/0605 , F04B2205/05
摘要： An apparatus for controlling an electrohydraulic system of a work machine having an engine that drives a variable displacement pump is disclosed. The apparatus includes a pump displacement setting device that produces a pump command signal, a pressure sensor that detects the fluid pressure associated with the variable displacement pump and produces a pressure signal, and an engine speed sensor that detects the speed of the engine and produce an engine speed signal. A microprocessor computes the torque demand on the engine in response to the desired pump displacement, determines a torque limit associated with the engine in response to the engine speed, and responsively modifies the pump command signal to limit the engine torque.
摘要翻译：公开了一种用于控制具有驱动变排量泵的发动机的作业机械的电动液压系统的装置。该装置包括产生泵命令信号的泵位移设置装置，检测与可变排量泵相关联的流体压力并产生压力信号的压力传感器，以及检测发动机速度并产生发动机转速信号。微处理器响应于期望的泵位移来计算发动机的扭矩需求，响应于发动机转速确定与发动机相关联的转矩极限，并且响应地修改泵命令信号以限制发动机转矩。

14. 发明授权

US5801967A Method for determining the volume between previous and current site surfaces 失效
标题翻译：确定上一个和当前站点表面之间的体积的方法
公开(公告)号：US5801967A
公开(公告)日：1998-09-01
申请号：US626230
申请日：1996-03-29
申请人： Daniel E. Henderson , Karl W. Kleimenhagen , Craig L. Koehrsen , Kevin J. Lueschow , Kenneth L. Stratton
发明人： Daniel E. Henderson , Karl W. Kleimenhagen , Craig L. Koehrsen , Kevin J. Lueschow , Kenneth L. Stratton
IPC分类号： G01C5/00 , G01F17/00 , G01F22/00 , G01S19/19 , G01C21/00
CPC分类号： G01F17/00 , G01F22/00
摘要： A method for calculating a volume between previous and current site surfaces is provided. The site surfaces are represented by a series of surface elevations. The method includes the steps of determining previous surface elevations; traversing the site with a work machine and determining current surface elevations; and calculating a volume difference between the current surface and the previous surface as a function of the previous surface elevations and the current surface elevations.
摘要翻译：提供了一种用于计算前一个和当前站点表面之间的体积的方法。站点表面由一系列表面高程表示。该方法包括以下步骤：确定先前的表面高程; 用工作机器穿过现场并确定当前的表面高度; 以及根据先前的表面高程和当前的表面高程计算当前表面和先前表面之间的体积差。

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