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公开(公告)号：US20130312397A1
公开(公告)日：2013-11-28
申请号：US13481458
申请日：2012-05-25
IPC分类号： F16D31/02
CPC分类号： E02F9/2235 , E02F9/2253 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F16H61/4017 , F16H61/431
摘要： A method and apparatus for controlling a hydraulic power system is provided that includes a hydraulic motor and a hydraulic pump configured to supply hydraulic fluid to the hydraulic motor. A relief valve is provided that is configured to release hydraulic fluid from a location between the hydraulic pump and the hydraulic motor when a pressure of the hydraulic fluid exceeds a predetermined relief pressure. Above a predetermined threshold pressure for the system, the displacement of the pump is adjusted to at least a minimum displacement that is based on a total demanded flow for the system that includes a desired flow of hydraulic fluid across the relief valve and a first hydraulic fluid flow consumed by the motor.
摘要翻译： 提供了一种用于控制液压动力系统的方法和装置，其包括液压马达和液压泵，所述液压马达和液压泵构造成向液压马达提供液压流体。 提供了一种安全阀，其构造成当液压流体的压力超过预定的释放压力时，从液压泵和液压马达之间的位置释放液压流体。 高于系统的预定阈值压力时，泵的排量被调节至至少最小位移，该最小位移基于系统的总要求流量，其包括跨过安全阀的期望流量的液压流体和第一液压流体 电机消耗的流量。
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公开(公告)号：US20130280111A1
公开(公告)日：2013-10-24
申请号：US13737679
申请日：2013-01-09
申请人： Eaton Corporation
IPC分类号： F04B17/05
CPC分类号： F04B17/05 , B60K6/12 , B66F9/07572 , E02F9/2217 , E02F9/2253 , E02F9/2282 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F04B49/00 , F15B1/02 , F15B21/14 , F15B2211/20523 , F15B2211/20546 , F15B2211/20561 , F15B2211/20569 , F15B2211/212 , F15B2211/6309 , F15B2211/6313 , F15B2211/633 , F15B2211/6333 , F15B2211/6336 , F15B2211/6343 , F15B2211/6346 , F15B2211/7135 , F15B2211/88 , F16H61/4078 , F16H61/4096 , Y02T10/6208
摘要： A hydraulic circuit architecture for a work vehicle includes a pump, a work circuit, a propel circuit, and a circuit selector. The work circuit is connected to an actuator for driving a work component of the work vehicle. The propel circuit includes a motor that is adapted to be connected to a drive train of the work vehicle. The propel circuit also includes an accumulator. The circuit selector selectively connects the pump to the work circuit and the propel circuit. The hydraulic circuit architecture is operable in a first mode and a second mode. In the first mode, the propel circuit is connected to the pump and the work circuit is disconnected from the pump. In the second mode, the work circuit is connected to the pump and the propel circuit is disconnected from the pump. When the hydraulic circuit architecture is in the second mode, stored energy from the accumulator can be used to drive the motor to cause propulsion of the work vehicle.
摘要翻译： 用于工作车辆的液压回路结构包括泵，工作电路，推进电路和电路选择器。 工作电路连接到用于驱动工作车辆的工作部件的致动器。 推进电路包括适于连接到工作车辆的传动系的电动机。 推进电路还包括蓄电池。 电路选择器选择性地将泵连接到工作电路和推进电路。 液压回路结构可在第一模式和第二模式中操作。 在第一模式中，推进电路连接到泵，并且工作电路与泵断开连接。 在第二模式中，工作电路连接到泵，并且推进电路与泵断开连接。 当液压回路结构处于第二模式时，来自蓄能器的存储能量可用于驱动电动机以引起作业车辆的推进。
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公开(公告)号：US20130269329A1
公开(公告)日：2013-10-17
申请号：US13721443
申请日：2012-12-20
发明人： Mark P. Vonderwell
IPC分类号： F15B15/18
CPC分类号： F15B15/18 , B60Y2200/412 , E02F9/2253 , F15B11/0445 , F16H61/4043 , F16H61/4157 , F16H61/4183
摘要： A hydraulic system includes one or more hydraulic pumps, one or more hydraulic motors, a hydraulic tank, and fluid lines. The hydraulic system also includes one or more check valves fluidly connected to the hydraulic pumps and the hydraulic motors. The hydraulic system also includes one or more pilot-operated valves, operably coupled to the check valves by one or more pilot lines. The pilot-operated valves are configured to receive fluid pressure from the fluid lines, opening to allow hydraulic fluid to travel between fluid lines.
摘要翻译： 液压系统包括一个或多个液压泵，一个或多个液压马达，液压油箱和流体管线。 液压系统还包括流体连接到液压泵和液压马达的一个或多个止回阀。 液压系统还包括一个或多个先导式操作阀，其通过一个或多个引导管线可操作地联接到止回阀。 先导阀被构造成从流体管线接收流体压力，打开以允许液压流体在流体管线之间行进。
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公开(公告)号：US20130261909A1
公开(公告)日：2013-10-03
申请号：US13431616
申请日：2012-03-27
CPC分类号： B60W30/18118 , B60W10/06 , B60W10/08 , B60W10/10 , B60W10/18 , B60W30/1846 , B60W2300/17 , B60W2710/105 , E02F9/2253 , E02F9/226 , E02F9/265
摘要： A rollback prevention system is disclosed for use with a mobile machine having an engine and a transmission. The rollback prevention system may have an input device configured to receive an input indicative of a desired travel direction of the mobile machine, a sensor configured to generate a signal indicative of an actual travel direction of the mobile machine, and a controller in communication with the input device, the sensor, the engine, and the transmission. The controller may be configured to make a determination that the actual travel direction of the mobile machine is opposite the desired travel direction based on the signal, and determine a load on the transmission. The controller may also be configured to selectively increase a torque output of the transmission based on the determination only when the load on the transmission is less than a threshold value.
摘要翻译： 公开了一种与具有发动机和变速器的移动机器一起使用的回滚防止系统。 回滚防止系统可以具有被配置为接收指示移动机器的期望行进方向的输入的输入设备，被配置为生成表示移动机器的实际行进方向的信号的传感器，以及与该移动机器通信的控制器 输入装置，传感器，发动机和变速器。 控制器可以被配置为基于该信号来确定移动机器的实际行进方向与期望行驶方向相反，并且确定传动装置上的负载。 控制器还可以被配置为仅在传输上的负载小于阈值时才基于该确定来选择性地增加传输的转矩输出。
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公开(公告)号：US20130259620A1
公开(公告)日：2013-10-03
申请号：US13700412
申请日：2012-05-15
申请人： Atsushi Shirao
发明人： Atsushi Shirao
CPC分类号： E02F3/28 , B60W30/18172 , B60W2510/1085 , B60W2510/305 , E02F3/283 , E02F3/36 , E02F3/422 , E02F9/2253 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F16H61/4017 , F16H61/421 , F16H61/472
摘要： A tractive force control part of a wheel loader reduces the maximum tractive force when determination conditions are satisfied during tractive force control. The determination conditions include that the work phase is excavation, that the working implement is in the raising hydraulic stall condition and that drive circuit pressure is greater than or equal to a predetermined pressure threshold.
摘要翻译： 轮式装载机的牵引力控制部分在牵引力控制期间满足确定条件时减小最大牵引力。 确定条件包括工作阶段是挖掘，工作工具处于上升液压失速状态，并且驱动回路压力大于或等于预定压力阈值。
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公开(公告)号：US20130259619A1
公开(公告)日：2013-10-03
申请号：US13700405
申请日：2012-05-15
申请人： Atsushi Shirao
发明人： Atsushi Shirao
CPC分类号： E02F3/36 , B60W2510/30 , E02F3/28 , E02F9/2253 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F16H61/472
摘要： A traction force control section of a wheel loader reduces maximum traction. force to below the maximum traction. force with traction force control in an off state when the traction force control is in an on state. The traction force control section increases the maximum traction force when determination conditions are satisfied with the traction force control in the on state. The determination conditions include that the work situation is digging, that the operation amount of the acceleration operation member is the predetermined operation threshold or more, and that a boom angle is the predetermined angle threshold or more.
摘要翻译： 轮式装载机的牵引力控制部分减少了最大牵引力。 强力到最大牵引力以下。 当牵引力控制处于接通状态时，牵引力控制在关闭状态的力。 当在接通状态下的牵引力控制满足判定条件时，牵引力控制部增大最大牵引力。 确定条件包括工作情况正在挖掘，加速操作构件的操作量是预定操作阈值以上，并且起重臂角度是预定角度阈值以上。
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公开(公告)号：US08528684B2
公开(公告)日：2013-09-10
申请号：US13307443
申请日：2011-11-30
IPC分类号： B60Q5/00
CPC分类号： E02F3/964 , B60Y2200/412 , B60Y2200/415 , E02F9/166 , E02F9/2253 , F16H61/0021 , Y10T137/7761 , Y10T477/6403 , Y10T477/6937
摘要： A charge pressure reduction circuit for a loader backhoe in which a directional control valve causes the charge pump to operate at a system pressure high enough to adequately supply a clutch circuit when conditions indicate the vehicle is operating in a loader or transport mode. The directional control valve causes the charge pump to operate at a lower pressure as, for example, required for a lubrication circuit when conditions indicate the vehicle is in a backhoe operating mode.
摘要翻译： 一种用于装载机反铲的充气减压电路，其中方向控制阀使得电荷泵在足够高的系统压力下操作以在条件指示车辆以装载机或运输模式操作时充分供应离合器电路。 当条件指示车辆处于反铲操作模式时，方向控制阀使得电荷泵在例如润滑回路所需的较低压力下操作。
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公开(公告)号：US08515637B2
公开(公告)日：2013-08-20
申请号：US12978176
申请日：2010-12-23
IPC分类号： G06F17/00
CPC分类号： E02F9/2253 , F16H61/431 , F16H61/468
摘要： A machine control system may include an input receiving portion configured to receive torque inputs related to a hydrostatic transmission. The input receiving portion may also receive an operator request for actuating the hydrostatic transmission. The machine control system may also include a processor configured to determine a factor based at least in part on the torque inputs, for adjusting the operator request. The processor may also be configured to determine a command for actuating the hydrostatic transmission based on the adjusted operator request, such that a torque load to be exerted on a power source by the hydrostatic transmission is within a desired range. The machine control system may further include an output sending portion configured to send the command to the hydrostatic transmission.
摘要翻译： 机器控制系统可以包括被配置为接收与静液压传动相关的扭矩输入的输入接收部分。 输入接收部分还可以接收用于致动静液压传动的操作者请求。 机器控制系统还可以包括处理器，该处理器被配置为至少部分地基于转矩输入来确定因子，以调整操作者的请求。 处理器还可以被配置为基于经调整的操作者请求来确定用于致动静液压变速器的命令，使得通过静液压变速器施加在动力源上的扭矩负载在期望的范围内。 机器控制系统还可以包括被配置为将命令发送到静液压传动的输出发送部分。
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公开(公告)号：US20130144496A1
公开(公告)日：2013-06-06
申请号：US13817204
申请日：2012-04-18
申请人： Hiroaki Takeshima , Yoshito Komatsu
发明人： Hiroaki Takeshima , Yoshito Komatsu
IPC分类号： E02F3/96 , F15B11/028 , E02F9/22
CPC分类号： E02F3/964 , E02F9/166 , E02F9/2012 , E02F9/2221 , E02F9/2253 , F15B11/028 , F16H61/0021
摘要： A backhoe loader includes: a transmission; a cab including an operator's seat allowed to be forwardly and backwardly oriented; a loader disposed forwards of the cab; a backhoe disposed rearwards of the cab; a hydraulic pump configured to supply an operating oil to a hydraulic clutch; a hydraulic circuit including a relief valve for setting an intra-circuit hydraulic pressure to be a first hydraulic pressure; a work mode determining unit configured to determine whether or not an operating mode is a backhoe work mode using the backhoe; and a relief valve controlling unit. The relief valve controlling unit is configured to control a relief pressure of the relief valve at a second hydraulic pressure lower than the first hydraulic pressure when the work mode determining unit determines that the operating mode is the backhoe work mode.
摘要翻译： 挖掘装载机包括：传动装置; 驾驶室包括允许向前和向后定向的驾驶员座; 一个装在驾驶室前面的装载机; 设置在驾驶室后方的反铲车; 液压泵，其构造成将工作油供给到液压离合器; 液压回路，包括用于将电路内液压设定为第一液压的安全阀; 工作模式确定单元，被配置为使用所述反铲来确定操作模式是否是反铲工作模式; 和安全阀控制单元。 安全阀控制单元被配置为当工作模式确定单元确定操作模式是反铲工作模式时，在低于第一液压压力的第二液压压力下控制安全阀的溢流压力。
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公开(公告)号：US20130091743A1
公开(公告)日：2013-04-18
申请号：US13709886
申请日：2012-12-10
CPC分类号： E02F5/145 , E02F5/06 , E02F9/2253
摘要： The present disclosure provides a machine configured so that its ground speed is at least in part dependent on the measured force that is applied to an attachment attached thereto. The present disclosure also provides an attachment for a machine that is configured to provide feedback to the machine it is configured to be attached to, wherein the feedback is representative of the force applied to the attachment. The present disclosure also provides a method of automatically controlling the ground speed of a machine based on feedback measured in an attachment attached to the machine.
摘要翻译： 本公开提供了一种机器，其配置成使得其地面速度至少部分地取决于施加到附接到其上的附件的测量的力。 本公开还提供了一种用于机器的附件，其被配置为向机器提供其被配置为附接到其上的反馈，其中反馈代表施加到附件的力。 本公开还提供了一种基于在附接到机器的附件中测量的反馈来自动控制机器的地面速度的方法。
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