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1. 发明授权

US09506222B2 Drive control method and system for operating a hydraulic driven work machine 有权
标题翻译：用于操作液压驱动作业机的驱动控制方法和系统
公开(公告)号：US09506222B2
公开(公告)日：2016-11-29
申请号：US14239553
申请日：2011-08-26
申请人： Judith Britten , Daniel Müller , Thomas Schaefer , Bernd Faber
发明人： Judith Britten , Daniel Müller , Thomas Schaefer , Bernd Faber
IPC分类号： E02F9/22 , F16H61/421 , F16H61/433 , F16H61/478 , F16H61/47 , F16H59/46
CPC分类号： E02F9/2228 , E02F9/2246 , E02F9/2253 , E02F9/2278 , E02F9/2285 , E02F9/2296 , F16H61/421 , F16H61/433 , F16H61/47 , F16H61/478 , F16H2059/465
摘要： A system and a method for operating a hydraulic driven work machine including a hydraulic travel motor having a variable displacement is provided, wherein a flow of hydraulic fluid generated by a hydraulic pump is provided to the travel motor and wherein a control valve is provided for controlling the flow of hydraulic fluid from the hydraulic pump to the travel motor. The hydraulic pump is provided with a hydraulic control depending on a load signal generated by the travel control valve and the travel motor is provided with an electric control according to a desired driving behavior.
摘要翻译：提供了一种用于操作包括具有可变排量的液压行进马达的液压驱动作业机械的系统和方法，其中由行程马达提供由液压泵产生的液压流体的流动，并且其中设置有用于控制的控制阀液压油从液压泵流向行驶马达。根据由行驶控制阀产生的负载信号，液压泵具有液压控制，并且行驶电动机根据期望的驾驶行为被提供电控制。

2. 发明申请

US20160252109A1 HYDRAULIC DISPLACEMENT CONTROL SYSTEM 审中-公开
标题翻译：液压位移控制系统
公开(公告)号：US20160252109A1
公开(公告)日：2016-09-01
申请号：US15033363
申请日：2014-10-29
申请人： RAVEN INDUSTRIES, INC.
发明人： Jesse Wagers
IPC分类号： F15B15/04 , F15B15/20 , F15B15/08
CPC分类号： F15B15/04 , F15B11/161 , F15B15/088 , F15B15/204 , F16H61/4008 , F16H61/4035 , F16H61/4061 , F16H61/421 , F16H61/46
摘要： A load based pressure and flow control system including a variable displacement hydraulic motor and a flow control valve coupled with a motor inlet. A motor inlet pressure sensor is interposed between the variable displacement hydraulic motor and the flow control valve, the motor inlet pressure sensor configured to measure a motor inlet pressure at the motor inlet. An output sensor is coupled with a motor output of the variable displacement hydraulic motor and configured to measure an output characteristic of the variable displacement hydraulic motor. A displacement and flow controller of the system is configured to change displacement of the variable displacement hydraulic motor according to a pressure difference across the flow control valve between the measured motor inlet pressure and a hydraulic system pressure, and change a flow rate of hydraulic fluid through the flow control valve according to the measured output characteristic of the hydraulic motor.
摘要翻译：一种基于负载的压力和流量控制系统，包括可变排量液压马达和与马达入口结合的流量控制阀。电动机入口压力传感器介于可变排量液压马达和流量控制阀之间，电动机入口压力传感器被配置为测量马达入口处的马达入口压力。输出传感器与可变排量液压马达的马达输出端相连，并被配置成测量可变排量液压马达的输出特性。系统的位移和流量控制器被配置为根据测量的电动机入口压力和液压系统压力之间的流量控制阀上的压力差来改变可变排量液压马达的位移，并且改变液压流体通过的流量流量控制阀根据液压马达的测量输出特性。

3. 发明申请

US20160194854A1 Working Vehicle Travel Control Apparatus 审中-公开
公开(公告)号：US20160194854A1
公开(公告)日：2016-07-07
申请号：US14985748
申请日：2015-12-31
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Yasuo YAMAZAKI , Shouroku KAWAHARA
IPC分类号： E02F9/20 , E02F9/22 , E02F3/28 , F16H47/02 , F16H61/70
CPC分类号： E02F9/2079 , E02F3/283 , E02F9/202 , E02F9/22 , E02F9/2235 , E02F9/2253 , E02F9/2289 , E02F9/2296 , F16H47/02 , F16H61/4148 , F16H61/421 , F16H61/462 , F16H61/702
摘要： A working vehicle travel control apparatus, comprising: a variable displacement hydraulic pump; a variable displacement hydraulic motor connected in a closed circuit to the hydraulic pump and driven upon pressure oil from the hydraulic pump; a first control unit controls a motor displacement angle of the hydraulic motor by an electrical signal; a constant mesh transmission includes a clutch device that includes a High clutch section transmits power at a first transmission gear ratio and a Low clutch section that transmits power at a second transmission gear ratio, which is greater than the first transmission gear ratio, the constant mesh transmission transmits or interrupts power from the hydraulic motor; and a second control unit controls the first control unit so as to reduce the motor displacement angle to a predetermined value when the transmission is switched from the first transmission gear ratio to the second transmission gear ratio.

4. 发明授权

US09346347B2 Methods for safe operation of hydraulic hybrid vehicles with over-center pump/motors 有权
标题翻译：具有超中心泵/电机的液压混合动力汽车的安全运行方法
公开(公告)号：US09346347B2
公开(公告)日：2016-05-24
申请号：US13637847
申请日：2011-04-08
申请人： Charles L. Gray, Jr.
发明人： Charles L. Gray, Jr.
IPC分类号： B60W10/30 , B60K6/12 , F15B20/00 , F16H61/421 , F15B1/02 , F15B1/033 , F16H61/4192 , F16H61/439 , B60W10/04 , B60W10/06 , B60W50/038
CPC分类号： B60K6/12 , B60W10/04 , B60W10/06 , B60W50/038 , F15B1/024 , F15B1/033 , F15B20/002 , F15B20/004 , F15B20/008 , F15B2211/20553 , F15B2211/212 , F15B2211/8626 , F15B2211/87 , F15B2211/8752 , F15B2211/8755 , F16H61/4192 , F16H61/421 , F16H61/439 , Y02T10/6208 , Y02T10/6282
摘要： Fail-safe methods for utilizing an over-center pump/motor in a hydraulic hybrid vehicle are disclosed. A high-pressure fluid shutoff valve and an optional electrically or manually operated valve are additionally provided as means to ensure disconnection of the high pressure source in the event of a failure. Displacement stroke position and pressure differentials across the pump/motor are continually monitored. On detection of various modes of failure or irregularity in control of displacement, actions are taken including any of: the high pressure and low pressure accumulators are shut off automatically or manually, a check valve between the high and low pressure ports of the pump/motor is activated, and a small amount of pressurized fluid is released from the high pressure circuit to depressurize the captive fluid. Safe startup and shutdown procedures are also specified. The system provides for safe operation of a hydraulic hybrid vehicle that includes an engine pump and drive motor, at least one of which operates over-center. The system optionally provides a displacement control valve that is controlled by feedback from an actuator or displacement position sensor and that on loss of electric power to the displacement control valve will cause the controlled pump/motor to stroke to a zero displacement position.
摘要翻译：公开了在液压混合动力车辆中利用超中心泵/马达的故障安全方法。另外提供高压流体截止阀和可选的电动或手动操作的阀作为在发生故障时确保高压源断开的装置。持续监控泵/电机上的位移行程位置和压力差。在检测各种失效模式或位移控制不规则的情况下，采取以下措施：高压和低压蓄能器自动或手动关闭，泵/电机的高压端口和低压端口之间的止回阀被激活，并且少量的加压流体从高压回路释放以使捕获流体减压。还指定了安全的启动和关闭程序。该系统提供了包括发动机泵和驱动电动机的液压混合动力车辆的安全操作，其中至少一个操作在中心以上。该系统可选地提供一个位移控制阀，其通过来自致动器或位移传感器的反馈来控制，并且在排出控制阀的电力损失时将导致受控的泵/电动机行驶到零位移位置。

5. 发明授权

US09255639B2 Electronic control for the drive unit of a vehicle 有权
标题翻译：车辆驱动单元的电子控制
公开(公告)号：US09255639B2
公开(公告)日：2016-02-09
申请号：US12145053
申请日：2008-06-24
申请人： Heinrich Dueckinghaus , Manfred Gersmann
发明人： Heinrich Dueckinghaus , Manfred Gersmann
IPC分类号： F16H61/421 , A01D41/127 , B60K28/16 , B60W30/18 , F16H61/472 , F16H59/52 , F16H59/50
CPC分类号： F16H61/421 , A01D41/1274 , B60K28/165 , B60W30/18172 , B60W2720/30 , B60Y2200/222 , F16H59/52 , F16H61/472 , F16H2059/506
摘要： In vehicles designed to pick up and process crops, drive units affect the ground drive, which is an all-wheel drive, which acts on all of the wheels and/or track roller unit in contact with the ground, electronic controls and actuators perform the control and regulation of the drive units, and control units that control the drive torque at the wheels are used to obtain good traction and minimal slippage of the wheels on the ground. To control the drive torques, sensors are used at particular points, the signals and data of which are processed by the control device in order to predetermine a torque or intake volume requirement. The preselection of torque in the control results in the intake volume of the hydraulic drive motor being regulated. By specifying the intake volume required, it is possible to obtain optimal traction at one or more drive wheels, and to prevent undesired slippage of any one drive wheel in advance.
摘要翻译：在设计用于拾取和处理作物的车辆中，驱动单元影响地面驱动，这是全轮驱动，其作用于与地面接触的所有车轮和/或履带轮单元，电子控制和执行器执行驱动单元的控制和调节以及控制车轮上的驱动扭矩的控制单元被用于获得良好的牵引力并且在地面上的车轮的滑动最小化。为了控制驱动扭矩，在特定点使用传感器，其信号和数据由控制装置处理，以便预先确定扭矩或进气体积要求。控制中的扭矩的预选导致液压驱动马达的进气量被调节。通过规定所需的进气量，可以在一个或多个驱动轮上获得最佳的牵引力，并且可以预先防止任何一个驱动轮的不期望的滑动。

6. 发明申请

US20150345518A1 DEVICE FOR VARYING THE VOLUMES OF A FIRST HYDRAULIC MACHINE AND A SECOND HYDRAULIC MACHINE 有权
标题翻译：改变第一液压机和第二液压机的体积的装置
公开(公告)号：US20150345518A1
公开(公告)日：2015-12-03
申请号：US14412216
申请日：2013-06-05
申请人： ZF Friedrichshafen AG
发明人： Jan-Frederik KUHN , Timo MAISE , Marcus HIEMER , Stephan SCHINACHER , Sven BIEBER
IPC分类号： F15B11/16 , F15B21/00 , F15B13/06
CPC分类号： F15B11/16 , F15B13/06 , F15B21/001 , F15B2211/253 , F15B2211/6333 , F15B2211/6652 , F16H61/4061 , F16H61/421 , F16H61/431 , F16H2059/6861
摘要： A device for varying the swept volumes of first and second hydraulic machines, whose swept volumes depends upon pivoting positions of adjustable axes thereof which can be connected to one another by first and second lines. The axes can be coupled to a piston-cylinder device which is adjustable by a control valve unit for pivoting the axes. Pressures in the area of the hydraulic machines can be limited by the control valve unit. The control valve unit can be coupled to a respective first or second line with the highest pressure. A device for determining an existing actual pressure is located upstream of the control valve unit, at least in the area of one of the first and the second lines that connects with the first and the second hydraulic machines. The control valve unit can be actuated based on the actual pressure value determined by the device.
摘要翻译：一种用于改变第一和第二液压机的扫掠体积的装置，其扫掠体积取决于其可调节轴线的枢转位置，其可以通过第一和第二线路彼此连接。轴可以联接到活塞缸装置，该活塞缸装置可通过用于枢转轴线的控制阀单元来调节。液压机械区域的压力可由控制阀单元限制。控制阀单元可以连接到具有最高压力的相应的第一或第二管路。用于确定现有实际压力的装置至少在与第一和第二液压机连接的第一和第二管线之一的区域中位于控制阀单元的上游。控制阀单元可以根据设备确定的实际压力值来启动。

7. 发明申请

US20150159348A1 HYDRAULIC EXCAVATOR 有权
标题翻译：液压挖掘机
公开(公告)号：US20150159348A1
公开(公告)日：2015-06-11
申请号：US14355410
申请日：2013-12-06
申请人： KOMATSU LTD.
发明人： Takeshi Takaura
IPC分类号： E02F9/22 , E02F9/20 , F16H61/421
CPC分类号： E02F9/2285 , E02F9/2004 , E02F9/2012 , E02F9/2282 , E02F9/2292 , F15B13/0422 , F15B21/008 , F15B2211/6316 , F15B2211/6346 , F15B2211/6355 , F15B2211/67 , F15B2211/8616 , F16H61/421
摘要： There is provided a hydraulic excavator in which occurrence of minute vibrations in a control lever can be suppressed. The hydraulic excavator includes: a first pilot pressure control valve outputting a pilot pressure in accordance with operation of the control lever; an upstream pilot conduit having one end connected to the first pilot pressure control valve; a proportional solenoid valve connected to the other end of the upstream pilot conduit; a downstream pilot conduit having one end connected to the proportional solenoid valve; and a pilot switching valve for a boom having a second pilot port connected to the other end of the downstream pilot conduit, and controlling operation of the boom. A volume of the upstream pilot conduit is larger than a volume of the downstream pilot conduit.
摘要翻译：提供了一种液压挖掘机，其中可以抑制控制杆中的微小振动的发生。液压挖掘机包括：根据控制杆的操作输出先导压力的第一先导压力控制阀; 上游先导管，其一端连接到第一先导压力控制阀; 连接到上游先导管道的另一端的比例电磁阀; 一个下游先导管，其一端连接到比例电磁阀; 以及用于具有连接到下游先导管道的另一端的第二先导端口并且控制起重臂的操作的起重臂的先导换向阀。上游先导管的体积大于下游先导管的体积。

8. 发明授权

US09016053B2 Device for varying the swept volumes of a first hydraulic machine and a second hydraulic machine 有权
标题翻译：用于改变第一液压机和第二液压机的扫掠体积的装置
公开(公告)号：US09016053B2
公开(公告)日：2015-04-28
申请号：US13497281
申请日：2010-09-02
申请人： Jurgen Legner
发明人： Jurgen Legner
IPC分类号： F15B13/00 , F16H61/421 , F16H61/431 , F16H39/00
CPC分类号： F16H61/421 , F16H61/4017 , F16H61/431 , F16H2039/005
摘要： A device for varying the stroke of first and second hydraulic machines. At least one piston is functionally connected to axes of the hydraulic machines. Depending on power demanded by a driver, the piston can be acted upon, via position and high pressure control valve units of a valve system, with pressures that correspond to a pressure present in the hydraulic machines and that act in a first adjustment direction of the hydraulic machines axes. Pressure in the hydraulic machines is controlled by the position control valve unit and is limited by the high pressure control valve unit. The piston can be acted upon by the valve system with pressures that correspond to the pressure present in the hydraulic machines and that act in a second adjustment direction of the axes of the hydraulic machines, and action of the position control valve unit can be reversed.
摘要翻译：一种用于改变第一和第二液压机的行程的装置。至少一个活塞在功能上与液压机械的轴线相连。根据驾驶员要求的功率，活塞可以通过阀系统的位置和高压控制阀单元作用，其压力对应于液压机器中存在的压力，并且在第一调节方向上作用液压机轴。液压机中的压力由位置控制阀单元控制，并受到高压控制阀单元的限制。活塞可以由阀系统施加，其压力对应于液压机器中存在的压力并且作用在液压机械的轴线的第二调节方向上，并且位置控制阀单元的作用可以颠倒。

9. 发明申请

US20150082779A1 WORK VEHICLE AND METHOD FOR CONTROLLING WORK VEHICLE 有权
标题翻译：工作车辆和控制工作车辆的方法
公开(公告)号：US20150082779A1
公开(公告)日：2015-03-26
申请号：US14164745
申请日：2014-01-27
申请人： KOMATSU LTD.
发明人： Atsushi SHIRAO
IPC分类号： F15B11/08 , F15B13/02
CPC分类号： F15B11/08 , B60W10/06 , B60W10/30 , B60W2510/0638 , B60W2510/0666 , B60W2510/088 , B60Y2200/412 , E02F3/36 , E02F3/422 , E02F9/2246 , E02F9/2253 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B13/02 , F16H61/421 , F16H61/47
摘要： A control unit of the work vehicle is configured to set an upper limit of a throttle opening degree based on third throttle upper limit information when a work vehicle is performing excavation work and when work implement is not in use, to set the upper limit based on the second throttle upper limit information when the work vehicle is performing excavation work and when the work implement is in use, and to set the upper limit based on the first throttle upper limit information when an angle of a boom is equal to or greater than a predetermined angle, even when the the work vehicle is performing excavation work. The second throttle upper limit information specifies a lower upper limit than the first throttle upper limit information, and the third throttle upper limit information specifies a lower upper limit than the second throttle upper limit information.
摘要翻译：作业车辆的控制单元构成为，当作业车辆正在进行挖掘作业时，当工作装置不使用时，基于第三节气门上限信息设定节气门开度的上限，基于当工作车辆正在进行挖掘作业时和当工作装置正在使用时的第二节气门上限信息，并且当吊杆的角度等于或大于一个时，基于第一节气门上限信息设定上限值即使在作业车辆进行挖掘作业时也是预定的角度。第二节气门上限信息指定比第一节气门上限信息低的下限，并且第三节气门上限信息指定比第二节气门上限信息低的下限。

10. 发明申请

US20150057899A1 METHOD FOR ENGAGEMENT AND DISENGAGEMENT 有权
标题翻译：参与和取消的方法
公开(公告)号：US20150057899A1
公开(公告)日：2015-02-26
申请号：US14456232
申请日：2014-08-11
申请人： Danfoss Power Solutions Inc.
发明人： Torsten Kohmaescher
IPC分类号： B60W10/04 , B60W10/10
CPC分类号： B60W10/04 , B60W10/10 , B60W10/103 , B60W10/111 , B60Y2300/73 , F16H47/02 , F16H61/421 , F16H61/444 , F16H61/47 , F16H2047/025 , Y10T477/631
摘要： Method for engaging and disengaging a hydraulic motor which is adjustable in its displacement from and to a hydrostatic drive train of a hydromechanical transmission with a closed hydraulic fluid circuit. Two adjustable hydraulic motors and a hydraulic pump are arranged in parallel in the hydrostatic drive train and connected to a mechanical drive on the output side. At least one of the two hydraulic motors is connected to the mechanical drive via an assigned clutch. As appropriate to the driving situation, during operation of the other hydraulic motor and the hydraulic pump at least one of the hydraulic motors is engaged via the assigned clutch with the hydromechanical transmission from which the hydraulic motor was previously disengaged, likewise as appropriate to the driving situation. Before closing the clutch, the hydraulic motor to be engaged is accelerated load-free by deflecting its adjustment device in such a way that the rotational speed of an assigned clutch input shaft of the clutch is at least equal to the rotational speed of the clutch output shaft of the clutch which is connected to the mechanical gear. When the clutch is closed, both hydraulic motors act on a common output shaft of the mechanical gear.
摘要翻译：用于使液压马达接合和分离的方法，该液压马达与其具有闭合的液压流体回路的液压机械变速器的静液压驱动系统的位移可调。两个可调节的液压马达和一个液压泵并联设置在静液压传动系中，并连接到输出侧的机械传动装置。两个液压马达中的至少一个通过分配的离合器连接到机械驱动器。根据驾驶情况，在其他液压马达和液压泵的操作期间，至少一个液压马达通过分配的离合器与液压马达预先脱离的液压机械变速器接合，同样适合于驾驶情况。在关闭离合器之前，待接合的液压马达通过使其调节装置偏转而使其无负载地加速，使得离合器的分配的离合器输入轴的转速至少等于离合器输出的转速离合器的轴连接到机械齿轮。当离合器关闭时，两个液压马达都作用在机械齿轮的公共输出轴上。

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