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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：US20130161033A1
公开(公告)日：2013-06-27
申请号：US13773572
申请日：2013-02-21
Applicant: Caterpillar Inc.
Inventor： Todd R. FARMER , Charles W. Grant , Gregory A. Epplin , Michael J. Chadwick , Joshua D. Callaway
CPC classification number: E02F9/2025 , E02F3/845 , E02F9/265
Abstract: This disclosure relates to a control system for a machine. The control system includes a sensor configured to provide an implement measurement signal indicative of a velocity of a machine implement, and a controller. The controller is configured to receive the implement measurement signal, determine whether a main threshold condition is met, and determine an adjusted implement command based at least in part on the implement measurement signal.
Abstract translation: 本公开涉及一种用于机器的控制系统。 控制系统包括被配置为提供表示机器工具的速度的工具测量信号的传感器和控制器。 所述控制器被配置为接收所述工具测量信号，确定是否满足主阈值条件，并且至少部分地基于所述实现测量信号来确定调整后的实施命令。
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3.发明申请公开(公告)号：US20180094650A1
公开(公告)日：2018-04-05
申请号：US15286135
申请日：2016-10-05
Applicant: Caterpillar Inc.
Inventor： David J. Lomax , Joshua D. Callaway
CPC classification number: F15B13/0871 , F16K31/36 , F16K37/0083 , G05D7/005 , G05D7/0635
Abstract: A system and method for detecting uncommanded positioning of at least one valve spool in a plurality of valve spools and for stopping fluid flow to a plurality of hydraulic actuators fluidly connected to the plurality of valve spools is disclosed. The method may comprise receiving a signal fluid pressure detected in a signal passageway, identifying whether at least one activation command is currently enabled, and stopping the flow of fluid to the plurality of hydraulic actuators if no activation command is enabled for any of the plurality of valve spools, and the signal fluid pressure when detected (1) upstream of the plurality of valve spools is greater than a first threshold or (2) downstream of the plurality of valve spools is less than a second threshold.
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Patent Agency Ranking
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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5.发明授权公开(公告)号：US10233951B2
公开(公告)日：2019-03-19
申请号：US15286135
申请日：2016-10-05
Applicant: Caterpillar Inc.
Inventor： David J. Lomax , Joshua D. Callaway
Abstract: A system and method for detecting uncommanded positioning of at least one valve spool in a plurality of valve spools and for stopping fluid flow to a plurality of hydraulic actuators fluidly connected to the plurality of valve spools is disclosed. The method may comprise receiving a signal fluid pressure detected in a signal passageway, identifying whether at least one activation command is currently enabled, and stopping the flow of fluid to the plurality of hydraulic actuators if no activation command is enabled for any of the plurality of valve spools, and the signal fluid pressure when detected (1) upstream of the plurality of valve spools is greater than a first threshold or (2) downstream of the plurality of valve spools is less than a second threshold.
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公开(公告)号：US08700273B2
公开(公告)日：2014-04-15
申请号：US13773572
申请日：2013-02-21
Applicant: Caterpillar Inc.
Inventor： Todd R. Farmer , Charles W. Grant , Gregory A. Epplin , Michael J. Chadwick , Joshua D. Callaway
CPC classification number: E02F9/2025 , E02F3/845 , E02F9/265
Abstract: This disclosure relates to a control system for a machine. The control system includes a sensor configured to provide an implement measurement signal indicative of a velocity of a machine implement, and a controller. The controller is configured to receive the implement measurement signal, determine whether a main threshold condition is met, and to determine an adjusted implement command based at least in part on the implement measurement signal.
Abstract translation: 本公开涉及一种用于机器的控制系统。 控制系统包括被配置为提供表示机器工具的速度的工具测量信号的传感器和控制器。 所述控制器被配置为接收所述工具测量信号，确定是否满足主阈值条件，并且至少部分地基于所述实施测量信号来确定调整后的实施命令。
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公开(公告)号：US08762010B2
公开(公告)日：2014-06-24
申请号：US13839253
申请日：2013-03-15
Applicant: Caterpillar Inc.
Inventor： Todd R. Farmer , Charles W. Grant , Gregory A. Epplin , Michael J. Chadwick , Joshua D. Callaway
CPC classification number: E02F9/2025 , E02F3/845 , E02F9/265
Abstract: This disclosure relates to a control system for a machine implement. The control system includes a measurement sensor configured to provide an implement measurement signal indicative of a velocity of a machine implement, and a controller. The controller is configured to provide an implement measurement signal and an operator command signal, and to determine an adjusted implement command based signal based on the implement measurement signal and the operator command signal.
Abstract translation: 本公开涉及一种用于机器装置的控制系统。 控制系统包括测量传感器，其被配置为提供指示机器工具的速度的工具测量信号和控制器。 所述控制器被配置为提供工具测量信号和操作者指令信号，并且基于所述实施测量信号和所述操作者指令信号来确定基于调整的基于工具命令的信号。
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公开(公告)号：US20130317707A1
公开(公告)日：2013-11-28
申请号：US13839253
申请日：2013-03-15
Applicant: Caterpillar Inc.
Inventor： Todd R. Farmer , Charles W. Grant , Gregory A. Epplin , Michael J. Chadwick , Joshua D. Callaway
IPC: E02F9/20
CPC classification number: E02F9/2025 , E02F3/845 , E02F9/265
Abstract: This disclosure relates to a control system for a machine implement. The control system includes a measurement sensor configured to provide an implement measurement signal indicative of a velocity of a machine implement, and a controller. The controller is configured to provide an implement measurement signal and an operator command signal, and to determine an adjusted implement command based signal based on the implement measurement signal and the operator command signal.
Abstract translation: 本公开涉及一种用于机器工具的控制系统。 控制系统包括测量传感器，其被配置为提供指示机器工具的速度的工具测量信号和控制器。 所述控制器被配置为提供工具测量信号和操作者指令信号，并且基于所述实施测量信号和所述操作者指令信号来确定基于调整的基于工具命令的信号。
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