公开(公告)号：US09994104B2

公开(公告)日：2018-06-12

申请号：US14845190

申请日：2015-09-03

Applicant: Deere & Company

Inventor： Benjamin J. Hertel ,  Clayton G. Janasek ,  Jeffrey L. Theusch

IPC: A01B63/11 ,  B60K28/16 ,  B60W30/18 ,  A01B63/114 ,  A01B63/112

CPC classification number: B60K28/16 ,  A01B63/112 ,  A01B63/1145 ,  B60W2300/17 ,  B60Y2200/41 ,  B60Y2200/411 ,  E02F3/84 ,  E02F9/2062

Abstract: A vehicle traction control system for a vehicle includes a prime mover, at least one wheel for providing tractive effort on a support surface, and a ground-engaging implement moveable relative to the support surface. The traction control system also includes a controller operable to monitor wheel slip of the at least one wheel. The controller is operable to move the ground-engaging implement at a rate proportional to an amount of wheel slip.

公开(公告)号：US09485900B2

公开(公告)日：2016-11-08

申请号：US14499294

申请日：2014-09-29

Applicant: Deere & Company

Inventor： Richard Joseph Connell ,  Noel Wayne Anderson ,  Robert Thomas Casper

IPC: G06F7/70 ,  A01C7/00 ,  A01B76/00 ,  A01B63/24 ,  A01B63/112

CPC classification number: A01B76/00 ,  A01B63/112 ,  A01B63/24

Abstract: A plug detection system for an agricultural implement with a ground-engaging tool may include a rotational speed sensor, a ground speed sensing system, and a controller. The rotational speed sensor may be configured to detect a rotational speed of the ground-engaging tool. The ground speed sensing system may be configured to detect a ground speed of the agricultural implement. The controller may be in communication with the rotational speed sensor and the ground speed sensing system and may be configured to determine a threshold rotational speed based on the ground speed and send an alert signal when the rotational speed is below the threshold rotational speed.

Abstract translation: 具有地面接合工具的农具的插头检测系统可以包括转速传感器，地面速度感测系统和控制器。 旋转速度传感器可以被配置为检测地面接合工具的旋转速度。 地面速度感测系统可以被配置为检测农具的地面速度。 控制器可以与转速传感器和地面速度感测系统通信，并且可以被配置为基于地面速度来确定阈值转速，并且当转速低于阈值转速时发送报警信号。

公开(公告)号：US20150201547A1

公开(公告)日：2015-07-23

申请号：US14581041

申请日：2014-12-23

Applicant: AGCO INTERNATIONAL GmbH

Inventor： Christian Gschwendtner

IPC: A01B63/112 ,  A01B63/10

CPC classification number: A01B63/112 ,  A01B63/1006 ,  A01B63/22 ,  F16H47/04 ,  F16H61/4043 ,  F16H61/425 ,  F16H61/435 ,  F16H61/47

Abstract: A control system for a tractor having a transmission with a hydraulic drive circuit in which a hydraulic pump supplies pressurised fluid to a hydraulic motor. The control system controls an operating condition of an implement attached to the tractor and said control system comprises a pressure sensing means which senses the pressure in the hydraulic drive circuit and provides a signal which is indicative of the current pull force necessary to pull the implement. The control system further comprises a control means which receives the pressure signal and a second signal relating to the speed of the tractor and adjusts the current position of the implement to a new position when said pressure signal varies. The new position lies within a pre-determined position range dependent on the second signal in order to maintain an optimal, yet safe operating condition of the implement.

Abstract translation: 一种用于具有液压驱动回路的变速器的拖拉机控制系统，其中液压泵向液压马达提供加压流体。 控制系统控制连接到拖拉机的工具的操作状态，并且所述控制系统包括感测液压驱动电路中的压力并提供指示拉动工具所需的当前拉力的信号的压力感测装置。 控制系统还包括控制装置，其接收压力信号和与拖拉机的速度相关的第二信号，并且当所述压力信号变化时将工具的当前位置调整到新位置。 新位置在取决于第二信号的预定位置范围内，以便保持实施例的最佳但安全的操作状态。

公开(公告)号：US20120185137A1

公开(公告)日：2012-07-19

申请号：US13006114

申请日：2011-01-13

Applicant: David James Schedgick ,  Eric N. Griesbach

Inventor： David James Schedgick ,  Eric N. Griesbach

IPC: A01B63/112 ,  G06F19/00

CPC classification number: A01B63/112 ,  A01B63/114

Abstract: The hitch on a vehicle is moved by a hydraulic actuator. A method for controlling the hydraulic actuator defines a draft force setpoint in response to separately averaging two forces acting on lateral sides of the hitch, while operating in a configuration mode. During regular operation, a draft load is calculated from sensing those two forces and deriving a draft force error from difference between the draft load and the draft force setpoint. The draft force error is used to control fluid flow to and from the hydraulic actuator. One aspect of the control method derates the draft force error as the hitch moves beyond a predefined threshold position.

Abstract translation: 车辆上的搭接由液压执行器移动。 一种用于控制液压致动器的方法，当在配置模式下工作时，响应于分别平均作用在牵引杆的侧面上的两个力的牵伸力设定点。 在正常操作期间，通过感测这两个力计算出牵引载荷，并从牵伸载荷和牵伸力设定点之间的差值导出牵伸力误差。 牵引力误差用于控制流入和流出液压执行机构的流体流量。 控制方法的一个方面是降低牵引力误差，因为牵引力超过预定义的阈值位置。

公开(公告)号：US07658234B2

公开(公告)日：2010-02-09

申请号：US11299066

申请日：2005-12-09

Applicant: Everett G. Brandt ,  Andrew G. Shull

Inventor： Everett G. Brandt ,  Andrew G. Shull

IPC: A01B63/112

CPC classification number: E02F9/2203 ,  A01B63/112 ,  E02F3/845 ,  E02F9/2029

Abstract: A method of increasing efficiency and avoiding or reducing potential stall conditions is accomplished by configuring a ripper of a track type tractor responsive to a net force vector acting on the ripper. The net force vector is indicative of the various forces and pressures acting on the ripper, and the values indicative of these forces can be sensed. For instance, the force and value indicative of the force magnitude can be sensed by monitoring driveline torque, whereas the force vector angle can be derived from ripper tilt and lift actuator pressures. The ripper is configured responsive to the force vector magnitude and direction either via a control algorithm, or by inputs generated by an operator.

Abstract translation: 提高效率和避免或减少潜在失速条件的方法是通过对作用在裂土器上的净力矢量进行响应的轨道式拖拉机的裂土器来实现的。 净力向量表示作用在裂土器上的各种力和压力，并且可以感测到指示这些力的值。 例如，可以通过监测传动系扭矩来感测指示力大小的力和值，而力矢量角可以从剥离器倾斜和提升致动器压力导出。 裂土器通过控制算法或由操作者产生的输入来响应于力矢量幅度和方向来配置。

公开(公告)号：US20020043374A1

公开(公告)日：2002-04-18

申请号：US09792369

申请日：2001-02-23

Inventor： Nicolini Luca ,  Gregorio Angelo ,  Eugenio Sereni

IPC: A01D075/28 ,  A01B063/02

CPC classification number: G01L5/136 ,  A01B63/112

Abstract: Method and apparatus for controlling the attitude of an agricultural implement drawn by an agricultural tractor, the device including a lift; two deflection sensors located at the attachment points of the bottom arms of the lift to the frame of the agricultural tractor; and an electronic central control unit for processing data received from the sensors and controlling lifting and lowering of the implement by the lift as a function of the data detected by the two sensors; the device being characterised in that each of the sensors has locking means for adjusting the position of each of the sensors with respect to the frame so that each of the sensors assumes a predetermined tilt with respect to the ground.

Abstract translation: 用于控制由农用拖拉机牵引的农用工具的姿态的方法和装置，所述装置包括升降机; 两个偏转传感器位于电梯的底臂的附接点到农用拖拉机的框架上; 以及电子中央控制单元，用于处理从传感器接收的数据，并且根据由两个传感器检测到的数据来控制由升降机提升和降低的装置; 该装置的特征在于，每个传感器具有用于调节每个传感器相对于框架的位置的锁定装置，使得每个传感器相对于地面呈现预定倾斜。

公开(公告)号：US5452766A

公开(公告)日：1995-09-26

申请号：US138672

申请日：1993-10-18

Applicant: Takeshi Imamura ,  Satoshi Iida ,  Seiichi Takahashi

Inventor： Takeshi Imamura ,  Satoshi Iida ,  Seiichi Takahashi

IPC: A01B63/112

CPC classification number: A01B63/112 ,  B60G2401/12

Abstract: A control system for controlling a hydraulically operable link mechanism mounted on a working vehicle. The link mechanism includes lift arms, a hydraulic actuator for controlling the lift arms, a first and a second lower links each connected at one end thereof to a working implement, and connecting rods interconnecting the lift arms and the first and second lower links, respectively. The control system includes a first coupling for pivotally connecting the first lower link to one side of a vehicle body, a second coupling for pivotally connecting the second lower link to the other side of the vehicle body, strain gauges provided for the first and second couplings, respectively, and a control device for controlling the actuator based on detection signals received from the strain gauges.

Abstract translation: 一种用于控制安装在工作车辆上的液压可操作的连杆机构的控制系统。 连杆机构包括提升臂，用于控制提升臂的液压致动器，分别在其一端连接到工作工具的第一和第二下部连杆，以及将升降臂与第一和第二下部连杆相互连接的连接杆 。 所述控制系统包括用于将所述第一下部连杆枢转地连接到车身的一侧的第一联接器，用于将所述第二下部连杆枢转地连接到所述车身的另一侧的第二联接件，用于所述第一和第二联接器 以及用于根据从应变计接收到的检测信号来控制致动器的控制装置。

公开(公告)号：US5320186A

公开(公告)日：1994-06-14

申请号：US757173

申请日：1991-09-10

Applicant: Richard P. Strosser ,  Charles R. Cornell ,  James W. Macqueene

Inventor： Richard P. Strosser ,  Charles R. Cornell ,  James W. Macqueene

IPC: A01B63/112 ,  A01B63/114 ,  B60D1/42 ,  E02F9/20 ,  A01B63/10

CPC classification number: A01B63/112 ,  A01B63/114 ,  B60D1/42 ,  E02F9/2029

Abstract: In an automatic draft control system for positioning a hitch, velocity feedback loop techniques are employed to control the rate of movement of the hitch. When the system is operating in an open loop position control mode, a switch mounted on a tractor fender enables an operator to manually control raising/lowering of the hitch for the purpose of attaching an implement. Hitch position is sensed and a microprocessor calculates the first derivative of the hitch position signal to determine actual hitch velocity. The actual velocity is subtracted from a desired velocity value to obtain a velocity error signal. The error signal is subjected to an integral control algorithm and the integrated value is used to energize raise or lower solenoids controlling a valve which raises or lowers the hitch. When the actual hitch velocity is equal to or greater than the desired hitch velocity, the integrated value is saved. When the next raise/lower sequence is initiated the integrator is reset to the saved value. This eliminates delays in starting hitch motion. The desired velocity value may be derived from the setting of a drop rate potentiometer in which case a drop rate value is added to the integrated error signal with the result being used to modify a hitch movement command that energizes the "lower" solenoid, thereby limiting the hitch drop rate when the system is operating in a closed loop position/draft control mode.

Abstract translation: 在用于定位搭接的自动牵伸控制系统中，采用速度反馈回路技术来控制搭接的移动速度。 当系统工作在开环位置控制模式时，安装在拖拉机挡泥板上的开关使得操作者能够手动地控制挂钩的升高/降低以便附接工具。 感测到挂钩位置，微处理器计算挂钩位置信号的一阶导数以确定实际牵引速度。 从所需速度值中减去实际速度，以获得速度误差信号。 误差信号经受积分控制算法，并且积分值用于激励控制升高或降低牵引力的阀的升高或下降螺线管。 当实际牵引速度等于或大于所需牵引速度时，积分值被保存。 当启动下一个升/降序列时，积分器将重置为保存的值。 这消除了启动牵引运动的延迟。 期望的速度值可以从下降速率电位计的设定中导出，在这种情况下，将下降速率值加到积分误差信号上，结果用于修改对“下”螺线管通电的牵引运动指令，从而限制 系统在闭环位置/牵引控制模式下运行时的牵引降速率。

公开(公告)号：US5143159A

公开(公告)日：1992-09-01

申请号：US709185

申请日：1991-06-03

Applicant: Steven C. Young ,  Bradley A. Nielsen ,  Matthew T. Miller

Inventor： Steven C. Young ,  Bradley A. Nielsen ,  Matthew T. Miller

IPC: A01B63/112

CPC classification number: A01B63/112

Abstract: A tractor-mounted three-point hitch for pulling a tillage implement is controlled by a closed loop including draft sensors for sensing the draft on the hitch and providing a draft feedback signal. An operator-controlled quadrant lever provides command signals for commanding the positioning of the hitch relative to the ground. During rapid hitch movement commanded by movement of the quadrant lever while the implement is above the ground, the draft feedback signal, which is normally filtered to eliminate frequencies above about 3.2 Hz, is more heavily filtered to eliminate frequencies above 0.5 Hz. This makes the loop less sensitive to the draft feedback signal and reduces vibrations which would otherwise occur because of oscillations in the draft feedback signal. The oscillations are caused by interaction of the weight of the implement bouncing because of the pneumatic tires on the tractor, and movement of the hitch to correct for the apparent change in draft. As the hitch approaches the commanded position the system reverts to the normal filtering so that the system is more sensitive to the draft feedback signal.

Abstract translation: 用于牵拉耕作机械的牵引车安装的三点牵引装置由闭环控制，包括用于感测牵引装置上的牵引力并提供牵引反馈信号的通风传感器。 操作者控制的象限杆提供命令信号，用于指示挂钩相对于地面的定位。 在工具位于地面以上的象限杆移动指令下的快速交接运动期间，通常被过滤以消除高于约3.2Hz的频率的草图反馈信号被更大地滤波以消除高于0.5Hz的频率。 这使得环路对草图反馈信号的敏感性降低，并且减小否则由于草图反馈信号中的振荡而发生的振动。 振荡是由于拖拉机上的充气轮胎所引起的工具的重量的相互作用引起的，并且牵引机构的运动以纠正牵伸的明显变化。 随着牵引接近指挥位置，系统恢复到正常过滤，使得系统对草图反馈信号更敏感。

公开(公告)号：US5101909A

公开(公告)日：1992-04-07

申请号：US611628

申请日：1990-11-13

Applicant: Harlan W. VanGerpen

Inventor： Harlan W. VanGerpen

IPC: A01B63/112 ,  G01L5/13

CPC classification number: A01B63/112 ,  G01L5/136

Abstract: A draft force sensor includes a bendable shaft which extends laterally though a pair of spaced apart supports. Draft links are coupled to the ends of the shaft. A curved flexible strap is positioned between the supports and has its ends coupled to the shaft by adjustable support brackets. In a no-load condition the strap is concave in a direction facing the shaft. A displacement transducer, such as a rectilinear potentiometer, linear variable transformer or other electrical device which is sensitive to displacement, is mounted between the shaft and the central portion of the strap. The displacement transducer senses the change of distance from the shaft to the "arch" of the strap and generates an electrical signal indicative of the forces on the shaft. The load from the draft links is applied to the ends of the shaft, causing it to bend and causing the strap to flex in the opposite direction. Thus, the shaft and strap act as a mechanical amplifier. The resulting draft sensor can sense both tension and compression.

Abstract translation: 牵引力传感器包括通过一对间隔开的支撑件横向延伸的可弯曲轴。 牵引杆连接到轴的端部。 弯曲的柔性带定位在支撑件之间，并且其端部通过可调节的支撑支架联接到轴。 在无负载状态下，带子在朝向轴的方向上是凹的。 诸如直线电位器，线性可变变压器或对位移敏感的其他电气装置的位移传感器安装在轴和带的中心部分之间。 位移传感器检测从轴的距离到带的“拱”的距离的变化，并产生指示轴上的力的电信号。 来自牵引连杆的负载被施加到轴的端部，导致其弯曲并使带子沿相反方向弯曲。 因此，轴和带作为机械放大器。 所得到的牵伸传感器可以感应张力和压缩。