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    Engagement control system and method
    1.
    发明授权
    Engagement control system and method 有权

    公开(公告)号：US11512454B2

    公开(公告)日：2022-11-29

    申请号：US16028096

    申请日：2018-07-05

    Applicant: Caterpillar Inc.

    Inventor： David C. Atkinson ,  Jeremy Peterson ,  Naveen Kumar S. Aproop ,  Jeremy R. Couch

    IPC: E02F9/26 ,  E02F3/65 ,  E02F9/20 ,  E02F3/64

    Abstract: A system for controlling an engagement operation between first and second movable machines includes a separation sensor, a relative speed sensor and a controller. The separation sensor determines a separation distance between the first and second machines. The relative speed sensor determines a relative difference in speed between the first and second machines. The controller determines the separation distance between the first and second machines, decelerates the first movable machine when the separation distance is within a deceleration zone, determines a relative difference in speed between the first and second machines, and generates an engagement speed command to operate the first movable machine at a first ground speed equal to a second ground speed of the second movable machine plus a relative engagement speed when the separation distance is within a buffer zone.

    Engagement Control System and Method
    2.
    发明申请
    Engagement Control System and Method 审中-公开

    公开(公告)号：US20200011034A1

    公开(公告)日：2020-01-09

    申请号：US16028096

    申请日：2018-07-05

    Applicant: Caterpillar Inc.

    Inventor： David C. Atkinson ,  Jeremy Peterson ,  Naveen Kumar S. Aproop ,  Jeremy R. Couch

    IPC: E02F9/26 ,  E02F3/65 ,  E02F9/20 ,  E02F3/64

    Abstract: A system for controlling an engagement operation between first and second movable machines includes a separation sensor, a relative speed sensor and a controller. The separation sensor determines a separation distance between the first and second machines. The relative speed sensor determines a relative difference in speed between the first and second machines. The controller determines the separation distance between the first and second machines, decelerates the first movable machine when the separation distance is within a deceleration zone, determines a relative difference in speed between the first and second machines, and generates an engagement speed command to operate the first movable machine at a first ground speed equal to a second ground speed of the second movable machine plus a relative engagement speed when the separation distance is within a buffer zone.

    Integration of Swing Energy Recovery and Engine Anti-Idling Systems
    3.
    发明申请
    Integration of Swing Energy Recovery and Engine Anti-Idling Systems 有权
    摆动能量回收和发动机反怠速系统的整合

    公开(公告)号：US20160281745A1

    公开(公告)日：2016-09-29

    申请号：US14668671

    申请日：2015-03-25

    Applicant: Caterpillar Inc.

    Inventor： Tonglin Shang ,  Pengfei Ma ,  Dayao Chen ,  Jeremy Peterson ,  Emily Anne Morris

    IPC: F15B1/033 ,  F15B21/14 ,  F15B13/02 ,  E02F9/22

    CPC classification number: F15B1/033 ,  E02F9/2217 ,  E02F9/2221 ,  E02F9/2242 ,  E02F9/2296 ,  F02N7/00 ,  F02N2200/10 ,  F15B1/024 ,  F15B13/02 ,  F15B21/14 ,  F15B2211/20523 ,  F15B2211/20569 ,  F15B2211/212 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/7058 ,  F15B2211/851 ,  F15B2211/88

    Abstract: Engine anti-idling and restart may be implemented in a machine having a power source, a movable work tool, a pump driven by the power source, an actuator receiving fluid from the pump and moving the work tool, a high-pressure fluid reservoir, and an assist motor operatively connected to the power source. Engine restart may include detecting operator input to start the power source, and fluidly connecting the fluid reservoir to the assist motor to assist in starting the power source in response to detecting the operator input. Prior to shutting down the power source during anti-idling, fluid from the pump may be input to the assist motor, pressurized and communicated to the high-pressure fluid reservoir in response to determining that idle condition exists and a reservoir charge pressure is less than a reservoir minimum restart pressure needed to restart the power source.

    Abstract translation: 发动机反怠速和重启可以在具有动力源，可移动作业工具，由动力源驱动的泵，从泵接收流体和移动工作工具的机器，高压流体储存器， 以及可操作地连接到电源的辅助马达。 发动机重启可以包括检测操作员输入以启动动力源，以及将流体储存器流体地连接到辅助马达，以响应于检测到操作者的输入而帮助启动动力源。 在反怠速期间关闭电源之前，来自泵的流体可以被输入到辅助马达，响应于确定空转状况而存在并加压并连通到高压流体存储器并且储存器充气压力小于 重新启动电源所需的储层最小重启压力。

    SYSTEM AND METHOD FOR AUTOMATED MECHANICAL BRAKE TOUCH UP ENHANCEMENT
    4.
    发明申请
    SYSTEM AND METHOD FOR AUTOMATED MECHANICAL BRAKE TOUCH UP ENHANCEMENT 审中-公开

    公开(公告)号：US20200262403A1

    公开(公告)日：2020-08-20

    申请号：US16278593

    申请日：2019-02-18

    Applicant: Caterpillar Inc.

    Inventor： Brian D. Kuras ,  Ankit Sharma ,  Jeremy Peterson

    IPC: B60T8/58 ,  B60T8/50 ,  B60T8/171 ,  B60T13/68 ,  B60T13/12

    Abstract: A work machine with a mechanical brake touch-up system includes a power source that provides power to a rotational element. The work machine includes a brake that is configured with a piston to selectively engage a frictional element rotationally coupled to the rotational element, a position sensor for generating a position signal of the piston, and a control valve configured to supply hydraulic pressure to the piston to selectively apply a retarding torque to the frictional element, a speed sensor for generating a rotational speed signal. The work machine includes a touch-up controller which is configured to detect a retarding condition of the work machine based on the speed signal, and, upon detection of a retarding condition, control the position of the piston to a touch-up position between an engaged and retracted position.

    Hybrid Apparatus and Method for Hydraulic Systems
    7.
    发明申请
    Hybrid Apparatus and Method for Hydraulic Systems 审中-公开
    液压系统混合装置与方法

    公开(公告)号：US20150059325A1

    公开(公告)日：2015-03-05

    申请号：US14016566

    申请日：2013-09-03

    Applicant: Caterpillar Inc.

    Inventor： Michael Knussman ,  Jeffrey Kuehn ,  Jeremy Peterson ,  Viral S. Mehta

    IPC: F15B11/024 ,  E02F9/22 ,  F15B21/14

    CPC classification number: E02F9/2289 ,  E02F9/2217 ,  E02F9/2242 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B2211/20546 ,  F15B2211/20561 ,  F15B2211/20569 ,  F15B2211/27 ,  F15B2211/3059 ,  F15B2211/31594 ,  F15B2211/613 ,  F15B2211/625 ,  F15B2211/7053 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/785

    Abstract: A hydraulic system is disclosed. The hydraulic system includes a first actuator fluidly coupled to a first rotating group in a first closed-loop circuit, a flow control module fluidly coupled to the first closed-loop circuit via a first conduit, a second actuator fluidly coupled to the flow control module via a second conduit, a second rotating group in selective fluid communication with the first conduit and the second conduit via the flow control module, and a controller operatively coupled to the flow control module. The controller is configured to operate the flow control module in a first mode and a second mode. The first mode effects fluid communication between the second rotating group and the first closed-loop circuit via the first conduit, and blocks fluid communication between the second rotating group and the second actuator via the second conduit.

    Abstract translation: 公开了一种液压系统。 液压系统包括在第一闭环回路中流体耦合到第一旋转组的第一致动器，经由第一导管流体耦合到第一闭环回路的流量控制模块，流体耦合到流量控制模块的第二致动器 经由第二管道，经由流量控制模块与第一管道和第二管道选择性流体连通的第二旋转组以及可操作地耦合到流量控制模块的控制器。 控制器被配置为在第一模式和第二模式下操作流量控制模块。 第一模式经由第一导管影响第二旋转组和第一闭环回路之间的流体连通，并阻止第二旋转组和第二致动器之间的流体连通经由第二导管。

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