公开(公告)号：US06321153B1

公开(公告)日：2001-11-20

申请号：US09590874

申请日：2000-06-09

申请人： David J. Rocke ,  Andrew G. Shull

发明人： David J. Rocke ,  Andrew G. Shull

IPC分类号： G06F770

CPC分类号： E02F3/434

摘要： A method for adjusting a process for automated bucket loading of a work machine having an engine and a work implement. The work implement includes a bucket. The method includes the steps of determining when the bucket engages a pile of material, initiating the automated bucket loading process in response to the bucket engaging the pile of material, determining an actual engine speed relative to a full engine speed, and adjusting a lift velocity command to the work implement, the lift velocity command adjustment being made as a function of a comparison of the actual engine speed to full engine speed.

摘要翻译： 一种用于调整具有发动机和工作装置的作业机器的自动铲斗装载过程的方法。 工作工具包括一个桶。 该方法包括以下步骤：确定铲斗何时与一堆材料接合，响应于铲斗接合一堆材料而启动自动铲斗装载过程，确定相对于整个发动机转速的实际发动机转速，以及调节提升速度 作为实际发动机转速与全速发动机转速的比较的函数进行升程速度指令调整。

公开(公告)号：US5617723A

公开(公告)日：1997-04-08

申请号：US563478

申请日：1995-11-28

申请人： Javad Hosseini ,  Nathan T. Schenkel ,  James E. Schimpf

发明人： Javad Hosseini ,  Nathan T. Schenkel ,  James E. Schimpf

IPC分类号： E02F3/43 ,  E02F9/20 ,  E02F9/22 ,  F16D31/00 ,  F16D39/00

CPC分类号： E02F9/2025 ,  E02F3/434 ,  E02F9/2214

摘要： A method for controlling an apparatus (100) for controllably moving an implement (102) is provided. The implement (102) is connected to a work machine (104) and is movable between first and second implement positions in response to operation of a hydraulic actuator (106). The apparatus (100) includes a joystick (306) with first and second positions and a neutral position. The joystick (306) is normally biased in a neutral position and is movable between the first and second positions. The apparatus senses the position of the joystick (306) and responsively generates a joystick position signal. The joystick (306) maintained at the first and second detent positions in response to manual movement of the joystick to the respective first and second detent positions. The joystick (306) is released from the detent position in response to receiving a release detent signal. The apparatus (100) senses the position of the work implement (102) with respect to the work machine (104). The apparatus (100) provides hydraulic fluid flow to the hydraulic actuator (106) in response to a magnitude of an electrical valve signal. The apparatus (100) receives the joystick position signal, responsively delivers the electrical valve signal. The magnitude of the electrical valve signal is proportional to the joystick position signal. The apparatus (100) compares the implement position signal with a first detent position and a second detent position and responsively produces the release detent signal.

摘要翻译： 提供了一种用于控制用于可控制地移动工具（102）的装置（100）的方法。 工具（102）连接到作业机械（104），并响应于液压致动器（106）的操作而在第一和第二工具位置之间移动。 装置（100）包括具有第一和第二位置的操纵杆（306）和中立位置。 操纵杆（306）通常被偏置在中立位置并且能够在第一和第二位置之间移动。 该装置感测操纵杆（306）的位置并且响应地产生操纵杆位置信号。 操纵杆（306）响应于操纵杆手动移动到相应的第一和第二制动位置而保持在第一和第二制动位置。 响应于接收到释放定位信号，操纵杆（306）从制动位置释放。 设备（100）感测到工作工具（102）相对于工作机器（104）的位置。 设备（100）响应于电动阀信号的大小向液压致动器（106）提供液压流体流。 装置（100）接收操纵杆位置信号，响应地传递电气阀信号。 电动阀信号的大小与操纵杆位置信号成正比。 装置（100）将实施位置信号与第一制动位置和第二制动位置进行比较，并且响应地产生释放定位信号。

公开(公告)号：US5528843A

公开(公告)日：1996-06-25

申请号：US292536

申请日：1994-08-18

申请人： David J. Rocke

发明人： David J. Rocke

IPC分类号： E02F3/43 ,  E02F9/20 ,  G05D1/02

CPC分类号： E02F3/434

摘要： In one aspect of the present invention, an automatic control system for loading a bucket of a wheel loader is disclosed. The system includes a pressure sensor that produces pressure signals in response to the hydraulic pressures associated with one of the lift and tilt cylinders. A microprocessor receives the pressure signals, compares at least one of the pressure signals to a predetermined one of a plurality of pressure setpoints, and produces lift and tilt command signals in response to the pressure comparisons. Finally, an electrohydraulic system receives the lift command signals and controllably extends the lift cylinder to raise the bucket through the material, and receives the tilt command signals and controllably extends the tilt cylinder to tilt the bucket to capture the material.

摘要翻译： 在本发明的一个方面，公开了一种用于装载轮式装载机的铲斗的自动控制系统。 该系统包括压力传感器，其响应于与提升和倾斜缸中的一个相关联的液压而产生压力信号。 微处理器接收压力信号，将至少一个压力信号与多个压力设定点中的预定压力信号进行比较，并响应于压力比较而产生升降指令信号。 最后，电动液压系统接收提升命令信号并且可控制地延伸提升缸，以通过材料升高铲斗，并且接收倾斜命令信号并且可控制地延伸倾斜缸以倾斜铲斗以捕获材料。

公开(公告)号：US3915325A

公开(公告)日：1975-10-28

申请号：US49800974

申请日：1974-08-16

申请人： INT HARVESTER CO

发明人： LARK WAYNE W ,  JENNINGS MARVIN D

IPC分类号： E02F3/43 ,  E02F9/20 ,  E02F3/36

CPC分类号： E02F9/2004 ,  E02F3/432 ,  E02F3/434 ,  E02F9/2041

摘要： An electronically controlled return to dig assembly, which after initial indexing, automatically positions the tool on a tractor loader. The electronic assembly operates to compare current in different circuits, upon detection of current imbalance hydraulic means are employed to achieve a zero imbalance which corresponds to the initial indexing position.

摘要翻译： 电子控制返回挖掘组件，其在初始分度之后自动将工具定位在拖拉机装载机上。 电子组件用于比较不同电路中的电流，当检测到电流不平衡时，采用液压装置来实现对应于初始分度位置的零不平衡。

公开(公告)号：US3905501A

公开(公告)日：1975-09-16

申请号：US43837874

申请日：1974-01-31

申请人： POCLAIN SA

发明人： LEROUX JEAN E

IPC分类号： E02F3/43 ,  E02F9/22 ,  F15B11/17 ,  E02F3/85

CPC分类号： E02F9/2292 ,  E02F3/434 ,  E02F9/2239

摘要： An earthworking machine having separate hydraulic drive motors for front and rear wheels and a hydraulic cylinder for lifting or lowering a forwarding extending work bucket is disclosed with work fluid for the cylinder being provided solely through a three-position regulator valve having both a manually operable positioning member and an automatically operable positioning means responsive to differences in hydraulic feed pressure to the drive motors for effecting a raising or lowering of the work bucket to maintain the front and rear wheels in ground contact; in a first embodiment the control valve is directly actuated by hydraulic feed fluid from the inputs to the vehicle drive motors and in a second embodiment, pilot fluid is provided through a regulator operated by the feed motor fluid to the three-position regulator valve.

摘要翻译： 公开了一种具有用于前轮和后轮的单独的液压驱动马达和用于提升或降低前进延伸的作业斗的液压缸的土方工程机，其具有用于仅通过三位置调节阀提供的气缸的工作流体，其具有手动可操作的定位 构件和可自动操作的定位装置，其响应于对驱动马达的液压进给压力的差异，用于实现工作斗的升高或降低以保持前轮和后轮处于地面接触; 在第一实施例中，控制阀由从输入到车辆驱动马达的液压进给流体直接致动，并且在第二实施例中，先导流体通过由进给马达流体操作的调节器提供给三位置调节阀。

公开(公告)号：US3782572A

公开(公告)日：1974-01-01

申请号：US3782572D

申请日：1972-03-16

申请人： POCLAIN SA

发明人： GAUTIER J

IPC分类号： E02F3/43 ,  E02F3/86

CPC分类号： E02F3/434

摘要： This invention relates to a method for adjusting the position of the working equipment with which a public works machine is provided, which is constituted by a group of front drive wheels and a group of rear drive wheels, by said working equipment which is articulated to the frame of the machine, whilst a doubleeffect drive member is coupled between the working equipment and the frame and comprises two chambers connected selectively to a source of pressurised fluid and to a discharge tank or isolated from said fluid sources and discharge tank, according to which method the working equipment is disposed in a predetermined position, isolating said two chambers, and the displacement of the machine is controlled, wherein the position of the working equipment subsequent to the predetermined position is a function of the values of the resistant torques of the groups of front and rear wheels. It also relates to a public works machine applying the method as mentioned hereinabove.

摘要翻译： 本发明涉及一种用于调节由一组前驱动轮和一组后驱动轮组成的公共作业机械的工作设备的位置的方法，所述工作设备被铰接到 而双重效应驱动构件连接在工作设备和框架之间，并且包括两个腔室，其选择性地连接到加压流体源和排出罐，或者与所述流体源和排放罐隔离，根据 所述方法将所述工作设备配置在预定位置，隔离所述两个室，并且控制所述机器的位移，其中所述工作设备在所述预定位置之后的位置是所述工作设备的所述阻力转矩的值的函数 前轮和后轮组。 它还涉及应用如上所述的方法的公共工程机器。

公开(公告)号：US3726428A

公开(公告)日：1973-04-10

申请号：US3726428D

申请日：1971-02-04

申请人： INT HARVESTER CO

发明人： LARK W ,  JENNINGS M ,  HOWELLS A

IPC分类号： E02F3/43 ,  E02F3/86 ,  E02F3/87

CPC分类号： E02F3/434 ,  E02F3/432

摘要： There is disclosed a control circuit for actuating a hydraulically actuated boom and a hydraulically actuated implement associated with an earth-working mechanism whereby the actuation of the boom and the implement may be initiated solely by the closing of an electrical switch thereby enabling the operator of the earth-working mechanism to retain both hands on the steering wheel except for the short period of time when the switch is actuated. The control circuit comprises a first electrical circuit for automatically raising the boom and the implement, a second electrical circuit for automatically and continuously orienting the implement in a predetermined relationship with the boom, a third electrical circuit for automatically rotating the implement from a first position to a second position and wherein the third electrical circuit includes means for maintaining the implement in the second position for a preselected period of time and then automatically returning the implement to the first position, a fourth electrical circuit for lowering the boom and the implement, a fifth electrical circuit for automatically orienting the implement in a preselected angular relationship with the surface upon which the earthworking mechanism is located, and a sixth electrical circuit adapted to enable the boom and the implement to follow the surface upon which the earth-working mechanism is located. Each of these electrical circuits may be enabled in a preselected sequence by merely closing a switch which is located within easy access to the operator of the earth-working mechanism and in addition, a manual override control is available so that the operator may manually operate the boom and the implement in a conventional manner.

摘要翻译： 公开了一种用于致动液压致动吊臂的控制电路以及与接地工作机构相关联的液压致动工具，由此可以仅通过关闭电气开关来启动吊杆和工具的致动，从而使操作者能够 除了在开关被致动的短时间内，双手放在方向盘上。 所述控制电路包括用于自动升高所述起重臂和所述工具的第一电路，用于以与所述起重臂预定关系自动地和连续地定向所述工具的第二电路，用于将所述工具从第一位置自动旋转到第 第二位置，并且其中所述第三电路包括用于将所述工具保持在所述第二位置中以预选的时间段，然后自动地将所述工具返回到所述第一位置的装置，用于降低所述起重臂和所述工具的第四电路， 用于自动地将工具定位成与所述接地工作机构所在的表面成预定角度关系的电路;以及第六电路，其适于使所述起重臂和所述工具能够跟随所述接地工作机构所在的表面 位于。 这些电路中的每一个可以通过仅关闭位于便于接近地球工作机构的操作者的开关来预选的顺序启用，此外，手动超控控制可用，以便操作者可以手动操作 繁荣和工具以传统的方式。

公开(公告)号：US3643828A

公开(公告)日：1972-02-22

申请号：US3643828D

申请日：1969-07-09

申请人： JAMES H ELLIOTT

发明人： ELLIOTT JAMES H

IPC分类号： E02F3/43 ,  F15B21/08 ,  E02F3/00

CPC分类号： E02F3/434 ,  F15B21/08

摘要： Automatic control system for a front end loader utilizing a bucket or fork at the end of a rigid boom. An automatic digging and dumping cycle is in parallel operation with a manual control system and which automatic control system may be changed to manual by an operator or be preselected for automatic or manual operation. Pressure sensitive means are utilized to determine and control the position and attitudes of the various elements that perform the necessary work functions.

摘要翻译： 自动控制系统，用于在刚性吊杆末端使用铲斗或叉车的前端装载机。 自动挖掘和排放循环与手动控制系统并行运行，哪些自动控制系统可以由操作员更改为手动，或者被预选为自动或手动操作。 压力敏感装置用于确定和控制执行必要工作功能的各种元件的位置和态度。

公开(公告)号：US11821169B2

公开(公告)日：2023-11-21

申请号：US17162454

申请日：2021-01-29

申请人： CNH Industrial America LLC

发明人： Caleb Peterson ,  Eric John Williams ,  Mitchell M. Johnson ,  Duqiang Wu

IPC分类号： E02F9/20 ,  E02F3/43 ,  E02F9/26

CPC分类号： E02F9/2041 ,  E02F3/432 ,  E02F3/434 ,  E02F9/2029 ,  E02F9/265

摘要： A system for controlling implement orientation of a work vehicle includes a computing system configured to control an operation of a lift actuator of the vehicle such that an implement of the vehicle is moved from a first vertical position relative to a second vertical position. Furthermore, the computing system is configured to monitor the angle of the implement as the implement is moved from the first vertical position to the second vertical position. Additionally, the computing system is configured to determine an actual error value between the monitored angle and a selected angle of the implement. Moreover, the computing system is configured to determine a modified error value that is different than the actual error value and control an operation of a tilt actuator of the vehicle to adjust the angle of the implement relative to the driving surface based on the modified error value.

公开(公告)号：US11808006B2

公开(公告)日：2023-11-07

申请号：US16490292

申请日：2018-09-28

申请人： KOMATSU LTD.

发明人： Takahisa Oasa ,  Kiyotaka Ninomiya

IPC分类号： E02F3/43 ,  E02F3/28 ,  E02F9/20 ,  E02F9/22

CPC分类号： E02F3/434 ,  E02F3/283 ,  E02F9/20 ,  E02F9/2004 ,  E02F9/2203 ,  E02F9/2285 ,  E02F9/2292

摘要： A work vehicle includes a vehicle body, a work implement including an attachment, an operating device and a controller. The operating device can be operated to a dump side and a tilt side to cause the attachment to dump and tilt. The controller executes an automatic drive control in which the attachment is caused to dump as far as a predetermined dumping position when the operating device is operated by a first dump operation amount or greater to the dump side, or to tilt as far as a predetermined tilt position when the operating device is operated by a first tilt operation amount or greater to the tilt side. The controller disables the automatic drive control when a switching time period required for the operating device to be switched between the tilt and dump sides is at least a predetermined disabling time period.