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    Directional shift variable brake disengagement
    1.
    发明授权
    Directional shift variable brake disengagement 有权

    公开(公告)号：US11498428B2

    公开(公告)日：2022-11-15

    申请号：US16666148

    申请日：2019-10-28

    Applicant: Caterpillar Inc.

    Inventor： Brian Kuras ,  Ankit Sharma ,  Lance Cowper

    IPC: B60W30/14 ,  B60L7/26 ,  B60L15/20 ,  B60W30/18 ,  B60L7/18

    Abstract: A braking system is disclosed. The braking system may include a controller configured to determine a speed threshold that is based on a deceleration of an output speed of a powertrain of a machine caused in part by engagement of one or more brakes of the machine during a directional shift in a movement of the machine, the speed threshold being the output speed of the powertrain at which the one or more brakes are to be commanded to disengage. The controller may be configured to command disengagement of the one or more brakes based on a determination that the output speed of the powertrain satisfies the speed threshold.

    Control system for DC bus regulation
    2.
    发明授权
    Control system for DC bus regulation 有权

    公开(公告)号：US11038442B2

    公开(公告)日：2021-06-15

    申请号：US16675721

    申请日：2019-11-06

    Applicant: Caterpillar Inc.

    Inventor： Brian Kuras ,  Ankit Sharma ,  Lance Cowper

    IPC: B60W20/10 ,  H02P5/50 ,  B60L15/20 ,  B62D11/04 ,  B60K6/46

    Abstract: A device that includes a memory and a processor is disclosed. The processor may be configured to receive a control signal for operating a plurality of traction motors of a work machine. The control signal may include information relating to an actual speed of the work machine, a target speed of the work machine, and a generator speed of a generator operatively coupled to the traction motors. The processor may be configured to determine respective torque commands associated with the traction motors based on the actual speed and the target speed, and determine a generator power limit based on the generator speed. The processor may be configured to determine a threshold based on the respective torque commands and the generator power limit, adjust the respective torque commands based on the threshold, and cause the traction motors to be operated based on the adjusted respective torque commands.

    Conditioning a Performance Metric for an Operator Display
    3.
    发明申请
    Conditioning a Performance Metric for an Operator Display 有权
    调节操作员显示器的性能指标

    公开(公告)号：US20140156105A1

    公开(公告)日：2014-06-05

    申请号：US13690894

    申请日：2012-11-30

    Applicant: CATERPILLAR INC.

    Inventor： Joseph Faivre ,  Nathaniel Doy ,  Lance Cowper

    IPC: G06F17/00

    CPC classification number: G05B23/0294 ,  B60W50/14 ,  B60W2050/146 ,  G07C5/00 ,  G07C5/0825

    Abstract: Real time determination of current vs. optimum performance in a track-type tractor is complex and requires information about both a state of the tractor and the operating environment, such as soil conditions. Presenting such data to an operator creates a problem of conveying sufficient information without undue complexity. A three part display for an operator shows a full range of performance, a subset range of performance associated with peak performance that is overlaid on the full range of performance, and a current performance indicator also overlaid on the full range of performance, such that peak performance is achieved when the current performance indicator is centered on the subset range of performance. The subset range of performance may move over the full range of performance to indicate operating conditions favoring a particular condition, e.g., low slip. An operator may then effect a change by adjusting, for example, speed or load.

    Abstract translation: 轨道式拖拉机的电流与最佳性能的实时确定是复杂的，需要有关拖拉机状态和操作环境（如土壤条件）的信息。 向操作员呈现这样的数据会产生传达足够的信息而没有过多的复杂性的问题。 运营商的三部分显示器显示出全面的性能，与峰值性能相关的性能范围覆盖在全部性能上，并且当前性能指标也覆盖在全部性能范围上，使得峰值 当当前的性能指标集中在性能的子集范围时，性能得以实现。 性能的子集范围可以在整个性能范围内移动，以指示有利于特定条件的操作条件，例如低滑移。 然后，操作员可以通过调整例如速度或负载来实现改变。

    System and Method for Re-Directing a Ripping Path
    6.
    发明申请
    System and Method for Re-Directing a Ripping Path 有权
    重新定向翻转路径的系统和方法

    公开(公告)号：US20140336881A1

    公开(公告)日：2014-11-13

    申请号：US13891865

    申请日：2013-05-10

    Applicant: CATERPILLAR INC.

    Inventor： Jean-Jacques Clar ,  Daniel Stanek ,  Lance Cowper ,  Troy K. Becicka ,  Brian G. Funke ,  Thandava K. Edara ,  Kyle Edwards

    IPC: E02F9/20

    CPC classification number: E02F9/2045 ,  A01B69/00 ,  E02F3/7604 ,  E02F3/842 ,  E02F5/32 ,  E02F9/2029

    Abstract: A system for re-orienting a machine during a ripping operation includes a position sensing system, a ripper, and a controller. The system stores a ripping path, determines the position of the machine, and compares the position of the machine to the ripping path. A drawbar pull of the machine is determined, compared to a maximum steering drawbar pull, and the ripper is raised if the machine is positioned greater than a predetermined distance from the ripping path and the drawbar pull exceeds the maximum steering drawbar pull. The machine is re-oriented and the ripper lowered relative to the work surface.

    Abstract translation: 在翻录操作期间重新定向机器的系统包括位置感测系统，松土机和控制器。 系统存储撕裂路径，确定机器的位置，并将机器的位置与撕开路径进行比较。 与最大转向牵引杆牵引相比，确定机器的牵引杆拉力，并且如果机器定位在距离撕裂路径大于预定距离并且牵引杆拉力超过最大转向牵引杆拉力的情况下，则提升机。 机器重新定向，并且松土机相对于工作表面降低。

    Implement stall detection system
    7.
    发明授权
    Implement stall detection system 有权

    公开(公告)号：US11293167B2

    公开(公告)日：2022-04-05

    申请号：US16562079

    申请日：2019-09-05

    Applicant: Caterpillar Inc.

    Inventor： Lance Cowper ,  Ronald Paul Dettman ,  Cody Joshua Ryerson

    IPC: E02F9/20 ,  E02F9/22

    Abstract: A work machine is disclosed. The work machine may include a frame, an implement system coupled to the frame, one or more sensing devices, and a control unit in communication with the implement system and the one or more sensing devices. The one or more sensing devices may be configured to transmit sensing device data relating to an operation of the implement system. The control unit may receive the sensing device data, compare the sensing device data with a stall threshold, and initiate a stall timer based on determining that the sensing device data satisfies the stall threshold. The stall timer may be configured to measure a stall duration. The control unit may compare the stall duration with a duration threshold, identify a stall event based on determining that the stall duration satisfies the duration threshold, and cause an action to be performed based on the stall event.

    Measuring and displaying tractor performance
    9.
    发明授权
    Measuring and displaying tractor performance 有权
    测量和显示拖拉机性能

    公开(公告)号：US08914215B2

    公开(公告)日：2014-12-16

    申请号：US13690934

    申请日：2012-11-30

    Applicant: Caterpillar Inc.

    Inventor： Joseph Faivre ,  Nathaniel Doy ,  Lance Cowper

    IPC: B60W10/04 ,  G06F19/00

    CPC classification number: B60W50/0098 ,  B60K35/00 ,  B60K2350/1092 ,  B60W50/14 ,  B60W2050/0031 ,  B60W2050/146 ,  B60W2300/17 ,  B60W2510/1005 ,  B60W2520/10 ,  B60W2520/26 ,  Y02T10/84

    Abstract: A method of measuring and displaying track-type tractor performance in real time calculates both a measure of work performance and a theoretical optimum work performance for a given input state, such as track speed. After estimating soil conditions, the theoretical optimum is estimated using an iterative technique. The optimum and current performance are normalized and displayed using a first bar representing a full range of work performance, a second bar depicting a range of optimum performance for current conditions is presented overlying the first bar, and an indicator line showing the current performance. This allows an operator to adjust speed or load accordingly. A coefficient of traction and a shear modulus adjustment, reflecting soil conditions, are calculated at the tractor during operation and used to offset a table of ideal condition operating points to produce the second bar.

    Abstract translation: 实时测量和显示轨道式拖拉机性能的方法可以计算给定输入状态（如轨道速度）的工作性能和理论最佳工作性能。 估计土壤条件后，使用迭代技术估算理论最优值。 使用表示全范围工作性能的第一条标准化和显示最佳和当前性能，描绘当前条件的最佳性能范围的第二条被覆盖在第一条上，以及显示当前性能的指示符线。 这允许操作者相应地调整速度或负载。 牵引力和剪切模量调整系数（反映土壤条件）在操作期间在拖拉机上计算，并用于偏移理想状态工作点的工作台以产生第二杆。

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