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公开(公告)号：US20160375880A1
公开(公告)日：2016-12-29
申请号：US14748832
申请日：2015-06-24
Applicant: Caterpillar Inc.
Inventor： Todd R. Farmer , Steven J. Juricak , Jason M. Buckmier , Joshua D. Callaway , Korby A. Koch , Brian F. Taggart
CPC classification number: B60T8/1701 , B60T1/062 , B60T7/042 , B60T7/085 , B60T8/171 , B60T13/662 , B60T13/686 , B60T17/221
Abstract: Systems and methods for simulating electro-hydraulic (EH) braking of a work machine using a combination of hydraulic braking and engine braking may include determining a commanded brake pressure requested by an operator, determining an available engine braking force, and comparing the available engine braking force to a maximum available bleed pressure that is available to reduce a hydraulic braking force. An engine braking output and a pressure reducing valve output pressure may be determined based on the available engine braking force and the maximum available bleed pressure. A pressure reducing valve may be actuated so that the hydraulic braking force is equal to the commanded brake pressure minus the pressure reducing valve output pressure, and a transmission may be actuated so that the engine applies an engine braking force equivalent to the engine braking output to brake the work machine.
Abstract translation: 用于模拟使用液压制动和发动机制动的组合的作业机械的电动液压（EH）制动的系统和方法可以包括确定操作者要求的指令制动压力，确定可用的发动机制动力，以及比较可用的发动机制动 强制达到可用于降低液压制动力的最大可用排放压力。 发动机制动输出和减压阀输出压力可以基于可用的发动机制动力和最大可用排放压力来确定。 可以致动减压阀，使得液压制动力等于指令的制动压力减去减压阀输出压力，并且可以致动变速器，使得发动机将与发动机制动输出相当的发动机制动力施加到 制动工作机。
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公开(公告)号：US20130275012A1
公开(公告)日：2013-10-17
申请号：US13891726
申请日：2013-05-10
Applicant: Caterpillar Inc.
Inventor： Christian NICHOLSON , Todd R. Farmer , Brian F. Taggart , Mark A. Sporer , Luka G. Korzeniowski
CPC classification number: E02F9/2029 , E02F3/28 , E02F3/432
Abstract: A system for correcting an angle of an implement coupled to a loader is disclosed. The system comprises a controller that is configured to calculate a first angle correction signal based at least upon an engine speed signal and an operator interface actuation signal, the operator interface actuation signal commanding movement of a lift arm on a loader; calculate a second angle correction signal based at least upon a coupler angle signal; transmit the first and second angle correction signals to change the angle of a coupler configured to couple an implement to the lift arm; and temporarily disable transmission of the second angle correction signal.
Abstract translation: 公开了一种用于校正联接到装载机的工具的角度的系统。 该系统包括控制器，其被配置为至少基于发动机速度信号和操作者接口致动信号来计算第一角度校正信号，操作者界面致动信号指示提升臂在装载机上的运动; 至少基于耦合器角度信号计算第二角度校正信号; 发射第一和第二角度校正信号以改变配置成将工具耦合到提升臂的耦合器的角度; 并暂时禁止第二角度校正信号的发送。
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公开(公告)号：US09533661B1
公开(公告)日：2017-01-03
申请号：US14748832
申请日：2015-06-24
Applicant: Caterpillar Inc.
Inventor： Todd R. Farmer , Steven J. Juricak , Jason M. Buckmier , Joshua D. Callaway , Korby A. Koch , Brian F. Taggart
CPC classification number: B60T8/1701 , B60T1/062 , B60T7/042 , B60T7/085 , B60T8/171 , B60T13/662 , B60T13/686 , B60T17/221
Abstract: Systems and methods for simulating electro-hydraulic (EH) braking of a work machine using a combination of hydraulic braking and engine braking may include determining a commanded brake pressure requested by an operator, determining an available engine braking force, and comparing the available engine braking force to a maximum available bleed pressure that is available to reduce a hydraulic braking force. An engine braking output and a pressure reducing valve output pressure may be determined based on the available engine braking force and the maximum available bleed pressure. A pressure reducing valve may be actuated so that the hydraulic braking force is equal to the commanded brake pressure minus the pressure reducing valve output pressure, and a transmission may be actuated so that the engine applies an engine braking force equivalent to the engine braking output to brake the work machine.
Abstract translation: 用于模拟使用液压制动和发动机制动的组合的作业机械的电动液压（EH）制动的系统和方法可以包括确定操作者要求的指令制动压力，确定可用的发动机制动力，以及比较可用的发动机制动 强制达到可用于降低液压制动力的最大可用排放压力。 发动机制动输出和减压阀输出压力可以基于可用的发动机制动力和最大可用排放压力来确定。 可以致动减压阀，使得液压制动力等于指令的制动压力减去减压阀输出压力，并且可以致动变速器，使得发动机将与发动机制动输出相当的发动机制动力施加到 制动工作机。
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公开(公告)号：US08612103B2
公开(公告)日：2013-12-17
申请号：US13891726
申请日：2013-05-10
Applicant: Caterpillar Inc.
Inventor： Christian Nicholson , Todd R. Farmer , Brian F. Taggart , Mark A. Sporer , Luka G. Korzeniowski
CPC classification number: E02F9/2029 , E02F3/28 , E02F3/432
Abstract: A system for correcting an angle of an implement coupled to a loader is disclosed. The system comprises a controller that is configured to calculate a first angle correction signal based at least upon an engine speed signal and an operator interface actuation signal, the operator interface actuation signal commanding movement of a lift arm on a loader; calculate a second angle correction signal based at least upon a coupler angle signal; transmit the first and second angle correction signals to change the angle of a coupler configured to couple an implement to the lift arm; and temporarily disable transmission of the second angle correction signal.
Abstract translation: 公开了一种用于校正联接到装载机的工具的角度的系统。 该系统包括控制器，其被配置为至少基于发动机速度信号和操作者接口致动信号来计算第一角度校正信号，操作者界面致动信号指示提升臂在装载机上的运动; 至少基于耦合器角度信号计算第二角度校正信号; 发射第一和第二角度校正信号以改变配置成将工具耦合到提升臂的耦合器的角度; 并暂时禁止第二角度校正信号的发送。
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