公开(公告)号：US09394670B2

公开(公告)日：2016-07-19

申请号：US14611318

申请日：2015-02-02

Applicant: Hitachi Construction Machinery Co., Ltd.

Inventor： Seiji Hijikata ,  Kouji Ishikawa ,  Takatoshi Ooki ,  Shinya Imura

IPC: E02F9/22 ,  E02F9/20 ,  F15B21/14 ,  F15B21/08

CPC classification number: E02F9/2221 ,  E02F9/2095 ,  E02F9/2217 ,  E02F9/2228 ,  E02F9/2285 ,  E02F9/2296 ,  F15B21/082 ,  F15B21/14 ,  F15B2211/20523 ,  F15B2211/40515 ,  F15B2211/415 ,  F15B2211/426 ,  F15B2211/6316 ,  F15B2211/6651 ,  F15B2211/6658

Abstract: Provided is a construction machine comprising an energy recovery device for recovering hydraulic fluid energy from a hydraulic actuator and being capable of achieving excellent operability even when the power of the prime mover is changed. The construction machine comprises an engine 1, a hydraulic pump 2, a plurality of hydraulic actuators 31-34, a plurality of control valves 41-44, a plurality of operating devices 71-74, an energy recovery device 80, an operation mode selector switch 76, an engine revolution speed dial 77, a pressure sensor 75, and a controller 90 which controls the flow rate of hydraulic fluid recovered by the energy recovery device based on input signals from the operation mode selector switch, the engine revolution speed dial and the pressure sensor.

Abstract translation: 提供一种建筑机械，其包括用于从液压致动器回收液压流体能量的能量回收装置，并且即使当原动机的功率改变时也能够实现优异的可操作性。 施工机械包括发动机1，液压泵2，多个液压致动器31-34，多个控制阀41-44，多个操作装置71-74，能量回收装置80，操作模式选择器 开关76，发动机转速转盘77，压力传感器75和控制器90，其根据来自操作模式选择开关，发动机转速转盘以及发动机转速转盘的输入信号控制由能量回收装置回收的液压流体的流量 压力传感器。

公开(公告)号：US09347204B2

公开(公告)日：2016-05-24

申请号：US14691783

申请日：2015-04-21

Applicant: Doosan Infracore Co., Ltd.

Inventor： Dong Mok Kim ,  Lee Hyoung Cho

IPC: E02F9/22 ,  F15B11/042 ,  F15B21/08

CPC classification number: E02F9/2246 ,  E02F9/2267 ,  F15B11/0423 ,  F15B21/082 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/6651 ,  F15B2211/6652 ,  F15B2211/6658

Abstract: An integrated control apparatus for an engine system including an engine, a hydraulic pump driven by the engine, a control valve for controlling hydraulic oil discharged from the pump and a hydraulic actuator operated by the oil from the control valve. The apparatus includes a power mode determiner calculating an auto mode change index as a function of a first state value representing a work load of the pump and a second state value representing a work speed required by an operator to determine whether a current power mode of the pump is to be changed, a pump power determiner determining a power mode of the pump based on a result of whether the current power mode of the pump is to be changed, and an engine speed determiner determining an engine speed based on the result of whether the current power mode of the pump is to be changed.

Abstract translation: 一种用于发动机系统的集成控制装置，包括发动机，由发动机驱动的液压泵，用于控制从泵排出的液压油的控制阀和由控制阀操作的油的液压致动器。 该装置包括功率模式确定器，其计算作为表示泵的工作负荷的第一状态值的​​函数的自动模式改变指标，以及表示操作者所需的工作速度的第二状态值，以确定是否存在 泵将被改变，泵功率确定器基于是否改变泵的当前功率模式的结果确定泵的功率模式，以及发动机速度确定器基于是否确定发动机速度 泵的当前功率模式将被更改。

公开(公告)号：US09323253B2

公开(公告)日：2016-04-26

申请号：US14136277

申请日：2013-12-20

Applicant: Eaton Corporation

Inventor： Philip James Dybing

IPC: F15B11/04 ,  G05D7/06 ,  F15B11/042

CPC classification number: G05D7/0635 ,  F15B11/0423 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/20553 ,  F15B2211/6051 ,  F15B2211/6057 ,  F15B2211/633 ,  F15B2211/6336 ,  F15B2211/651 ,  F15B2211/654 ,  F15B2211/6651 ,  F15B2211/865 ,  Y10T137/0368 ,  Y10T137/86027

Abstract: A pump control assembly having a flow control assembly disposed between the first end of a load sensing valve and a fluid pump is disclosed. The flow control assembly may include an orifice, a first valve assembly, and a second valve assembly. When the first valve assembly is in an open position and the second valve assembly is in a first position, fluid passing through the orifice is directed to a fluid reservoir and to the load sensing valve. When the first valve assembly is in a closed position and the second valve assembly is in a second position, all fluid passing through the orifice is directed to the load sensing valve. An electronic controller can be configured to transmit an output current to the first and second valve assemblies in response to an operational parameter of a prime mover supplying power to the fluid pump.

Abstract translation: 公开了一种具有设置在负载感测阀的第一端和流体泵之间的流量控制组件的泵控制组件。 流量控制组件可以包括孔口，第一阀组件和第二阀组件。 当第一阀组件处于打开位置并且第二阀组件处于第一位置时，通过孔的流体被引导到流体储存器和负载感测阀。 当第一阀组件处于关闭位置并且第二阀组件处于第二位置时，通过孔的所有流体被引导到负载感测阀。 电子控制器可以被配置为响应于向动力泵提供动力的原动机的操作参数而将输出电流传输到第一和第二阀组件。

公开(公告)号：US20160047398A1

公开(公告)日：2016-02-18

申请号：US14778759

申请日：2014-03-03

Applicant: DOOSAN INFRACORE CO., LTD.

Inventor： Young Sik CHO ,  Woo Yong JUNG

IPC: F15B11/028 ,  F15B13/16 ,  F15B11/08

CPC classification number: F15B11/028 ,  E02F9/2235 ,  E02F9/2292 ,  E02F9/2296 ,  F02D29/04 ,  F04B49/065 ,  F15B11/08 ,  F15B11/17 ,  F15B13/16 ,  F15B2211/205 ,  F15B2211/20523 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/2656 ,  F15B2211/605 ,  F15B2211/633 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/6652 ,  F15B2211/6654 ,  F15B2211/6655 ,  F15B2211/6658 ,  F15B2211/75

Abstract: The present disclosure relates to an apparatus for controlling a hydraulic pump for a construction machine. The apparatus for controlling the hydraulic pump for the construction machine according to the present disclosure includes: a hydraulic pump control device configured to generate first and second pump commands for controlling first and second hydraulic pumps so that the first and second hydraulic pumps generate pump torque corresponding to a request value; and a torque controller configured to generate first and second corrected pump commands, which are the corrected first and second pump commands, by a torque inclination map generated by reflecting a dynamic characteristic of an engine, and to provide the first and second corrected pump commands to the first and second hydraulic pumps.

Abstract translation: 本公开涉及一种用于控制建筑机械的液压泵的装置。 根据本公开的用于控制建筑机械的液压泵的装置包括：液压泵控制装置，其被配置为产生用于控制第一和第二液压泵的第一和第二泵命令，使得第一和第二液压泵产生相应的泵扭矩 到请求值; 以及转矩控制器，被配置为通过反映发动机的动态特性产生的扭矩倾斜图来产生作为校正的第一和第二泵命令的第一和第二校正泵命令，并且将第一和第二校正泵命令提供给 第一和第二液压泵。

公开(公告)号：US09243384B2

公开(公告)日：2016-01-26

申请号：US14310279

申请日：2014-06-20

Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.

Inventor： Koji Yamashita ,  Koji Ueda ,  Mitsunori Hirozawa

IPC: B60L9/00 ,  E02F9/20 ,  B60K6/46 ,  B60L1/00 ,  B60W10/08 ,  B60W20/00 ,  B60W10/26 ,  F15B21/14

CPC classification number: E02F9/2091 ,  B60K6/46 ,  B60L1/003 ,  B60L1/20 ,  B60L11/14 ,  B60L11/1862 ,  B60L11/1872 ,  B60L2240/441 ,  B60L2240/545 ,  B60W10/08 ,  B60W10/26 ,  B60W20/13 ,  B60W2510/244 ,  E02F9/2075 ,  F15B21/14 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/20569 ,  F15B2211/88 ,  Y02T10/6217 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7077 ,  Y10S903/907

Abstract: Provided is a hybrid construction machine preventing an electrical storage device from overcharge, including a hydraulic actuator, a hydraulic pump, a generator-motor which performs electric generator and motor actions, an engine, an electric actuator which generates regenerative electric power, an electrical storage device which performs a charge-and-discharge action with the generator-motor and the electric actuator, a charge-rate detector which detects a charge rate C1 of the electrical storage device, and a control section which controls an operation of the generator-motor and a charge-and-discharge action of the electrical storage device. The control section, when the charge rate C1 exceeds a set value Cs, performs overcharge-prevention control of making assist power by the electric motor action of the generator-motor be greater than that when C1≦Cs, the set value Cs predetermined as a charge rate at which receiving the regenerative electric power can overcharge the electrical storage device.

Abstract translation: 提供一种防止蓄电装置过充电的混合动力施工机械，包括液压致动器，液压泵，执行发电机和电动机动作的发电电动机，发动机，产生再生电力的电致动器，电存储 与发电电动机和电致动器进行充放电动作的装置，检测蓄电装置的充电率C1的充电率检测器和控制发电电动机的动作的控制部 以及蓄电装置的充放电动作。 控制部，当充电率C1超过设定值Cs时，通过发电电动机的电动机动作进行辅助动力的过充电控制大于当C1＆lt; N1; Cs时的设定值Cs， 接收再生电力的充电率可以使蓄电装置过充电。

公开(公告)号：US20160002889A1

公开(公告)日：2016-01-07

申请号：US14764140

申请日：2014-01-17

Applicant: CATERPILLAR SARL

Inventor： Shigeo KAJITA ,  Kouji KISHIDA ,  Shogo TADA ,  Tetsuya YOSHINO ,  Yuya KANENAWA ,  Nobuaki MATOBA

IPC: E02F9/22 ,  E02F9/08

CPC classification number: E02F9/2246 ,  E02F9/0841 ,  E02F9/2066 ,  E02F9/2217 ,  E02F9/2267 ,  E02F9/2278 ,  E02F9/2292 ,  E02F9/2296 ,  F04B49/06 ,  F04B49/08 ,  F04B49/22 ,  F04B2203/0202 ,  F04B2205/03 ,  F04B2205/05 ,  F15B1/024 ,  F15B21/14 ,  F15B2211/20507 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20569 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/30595 ,  F15B2211/6306 ,  F15B2211/6309 ,  F15B2211/633 ,  F15B2211/6652 ,  F15B2211/7128 ,  F15B2211/7135 ,  F15B2211/7142

Abstract: An inexpensive engine assist device capable of performing stable energy regeneration from an accumulator and a working machine on which the engine assist device is mounted are provided. A variable capacity type main pump and a variable capacity type assist pump having a motor function and a pump function are directly connected to an engine. A return pressure oil flowing out from a fluid pressure actuator is temporarily accumulated by a sub-accumulator and is supplied to an inlet of the assist pump, and the assist pump pressurizes the return fluid pressure oil and supplies the return fluid pressure oil to a main accumulator. A controller calculates and controls an assist pump swash plate angle using an engine load torque, and assist starting torque or charge starting torque set by engine speed setting means, and introduces a pressure-accumulated fluid discharged from the main accumulator to the inlet of the assist pump or introduces a pressurized fluid discharged from an outlet of the assist pump into the main accumulator.

Abstract translation: 提供能够从蓄能器和安装有发动机辅助装置的作业机进行稳定的能量再生的便宜的发动机辅助装置。 具有电机功能和泵功能的可变容量型主泵和可变容量型辅助泵直接连接到发动机。 从液压致动器流出的返回压力油由副蓄能器暂时积存，并被供给到辅助泵的入口，辅助泵对返回流体压力油加压并将返回流体压力油供给至主体 累加器。 控制器使用发动机负载转矩来计算和控制辅助泵斜盘角度，并且辅助由发动机转速设定装置设定的启动转矩或充量起动转矩，并且将从主蓄能器排出的压力积分流体引入辅助入口 泵送或将从辅助泵的出口排出的加压流体引入主蓄积器。

公开(公告)号：US20150345628A1

公开(公告)日：2015-12-03

申请号：US14288515

申请日：2014-05-28

Applicant: Caterpillar Paving Products Inc.

Inventor： Eric S. Engelmann ,  James A. Aardema

IPC: F16H61/478 ,  E02F9/22 ,  F16H61/42

CPC classification number: F16H61/478 ,  B60K17/28 ,  B60Y2200/41 ,  E02F9/2228 ,  F15B20/007 ,  F15B2211/20523 ,  F15B2211/50518 ,  F15B2211/5158 ,  F15B2211/526 ,  F15B2211/55 ,  F15B2211/665 ,  F15B2211/6653 ,  F15B2211/851 ,  F16H61/4148 ,  Y10T137/0396 ,  Y10T137/86002

Abstract: A power management system is provided. The power management system includes a power generation apparatus and a pump drivably coupled to the power generation apparatus. The power management system also includes a valve in fluid communication with the pump. The valve and the pump are components of a hydraulic circuit. The power management system further includes a controller communicably coupled to the valve. The controller is configured to selectively regulate the valve in order to control a pressure in the hydraulic circuit in a predetermined manner such that a torque load placed on the power generation apparatus by the pump lies below a threshold torque.

Abstract translation: 提供电源管理系统。 电力管理系统包括发电装置和可驱动地联接到发电装置的泵。 电源管理系统还包括与泵流体连通的阀。 阀和泵是液压回路的部件。 电源管理系统还包括可通信地耦合到阀的控制器。 控制器构造成选择性地调节阀门，以便以预定方式控制液压回路中的压力，使得由泵设置在发电设备上的转矩负载低于阈值转矩。

公开(公告)号：US20150233394A1

公开(公告)日：2015-08-20

申请号：US14700559

申请日：2015-04-30

Applicant: SUMITOMO(S.H.I.) CONSTRUCTION MACHINERY CO., LTD.

Inventor： Hideto MAGAKI ,  Kiminori SANO ,  Ryuji SHIRATANI

IPC: F15B11/05 ,  F15B15/14 ,  F15B11/16

CPC classification number: F15B11/05 ,  B60K6/485 ,  B60K6/54 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60W30/1884 ,  B60W2300/17 ,  B60W2510/0638 ,  B60W2710/083 ,  E02F3/32 ,  E02F9/2075 ,  E02F9/2221 ,  F15B11/161 ,  F15B15/14 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/2053 ,  F15B2211/26 ,  Y02T10/6226 ,  Y02T10/6286

Abstract: A hybrid shovel includes an engine that is controlled at a constant revolution speed, a motor generator that assists the engine, a control part that controls a drive of the motor generator, and a hydraulic pump that is driven by the engine. The control part causes the motor generator to assist the engine when a revolution speed of the engine is lower than the constant revolution speed due to a load of the hydraulic pump. The control part causes the motor generator to decrease an assist output to said engine before the revolution speed of the engine returns to the constant revolution speed.

Abstract translation: 混合铲子包括以恒定转速控制的发动机，辅助发动机的电动发电机，控制电动发电机的驱动的控制部分和由发动机驱动的液压泵。 当由于液压泵的负载而使发动机的转速低于恒转速时，控制部使电动发电机辅助发动机。 在发动机转速恢复到恒定转速之前，控制部分使得电动发电机减小对所述发动机的辅助输出。

公开(公告)号：US20150233093A1

公开(公告)日：2015-08-20

申请号：US14434772

申请日：2013-08-07

Applicant: HYUNDAI HEAVY INDUSTRIES CO., LTD.

Inventor： Jin Hee Won ,  Jun Seong Lim ,  Moon Kyu Choi

IPC: E02F9/22 ,  E02F9/26

CPC classification number: E02F9/2235 ,  E02F3/43 ,  E02F9/2232 ,  E02F9/2242 ,  E02F9/267 ,  E02F9/268 ,  F15B11/17 ,  F15B2211/20523 ,  F15B2211/20576 ,  F15B2211/40546 ,  F15B2211/41518 ,  F15B2211/665 ,  F15B2211/6652 ,  F15B2211/6654

Abstract: The present invention controls a proportional control valve controlling the maximum flow of the flow pump to perform controlling the maximum flow of the hydraulic oil pump after checking whether the pump joint control is normal, receiving a flow value of the flow pump controlled by the proportional control valve, checking an error when the flow value received during a control of the maximum flow has an error, and assigning a weight value to the checked error to compensate for the flow value. Therefore, the present invention may decrease a number of an engine revolution speed and lower a driving fuel consumption and reduce a driving noise.

Abstract translation: 本发明控制比例控制阀，控制流量泵的最大流量，在检查泵接头控制是否正常之后，控制液压油泵的最大流量，接收由比例控制器控制的流量泵的流量值 阀门，当在最大流量的控制期间接收到的流量值有错误时，检查错误，并且将重量值分配给所检查的误差以补偿流量值。 因此，本发明可以减少发动机转速的数量，降低驱动燃料消耗并降低驱动噪声。

公开(公告)号：US20150204054A1

公开(公告)日：2015-07-23

申请号：US14417977

申请日：2013-06-19

Applicant: Hitachi Construction Machinery Co., Ltd.

Inventor： Yasutaka Tsuruga ,  Kiwamu Takahashi

IPC: E02F9/22 ,  E02F9/02 ,  F15B9/17 ,  E02F3/42

CPC classification number: E02F9/2292 ,  E02F3/325 ,  E02F3/425 ,  E02F3/964 ,  E02F9/02 ,  E02F9/2239 ,  E02F9/2296 ,  F15B9/17 ,  F15B11/165 ,  F15B11/17 ,  F15B2211/20523 ,  F15B2211/2053 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/2656 ,  F15B2211/30535 ,  F15B2211/30565 ,  F15B2211/50536 ,  F15B2211/6054 ,  F15B2211/7135 ,  F15B2211/7142

Abstract: In a hydraulic drive system performing the load sensing control by using a pump device having two delivery ports whose delivery flow rates are controlled by a single pump controller, surplus flow is prevented and energy loss at an unload valve and a pressure compensating valve is reduced in combined operations in which two actuators are driven at the same time while producing a relatively large supply flow rate difference therebetween. A boom cylinder 3a is connected so that the hydraulic fluids delivered from delivery ports P1 and P2 of a pump device 1a are merged and supplied to the boom cylinder 3a. An arm cylinder 3h is connected so that the hydraulic fluids delivered from delivery ports P3 and P4 of a pump device 1b are merged and supplied to the arm cylinder 3h. A travel motor 3d is connected so that the hydraulic fluid delivered from one (delivery port P2) of the delivery ports of the pump device 1a and the hydraulic fluid delivered from one (delivery port P4) of the delivery ports of the pump device 1b are merged and supplied to the travel motor 3d. A travel motor 3e is connected so that the hydraulic fluid delivered from the other (delivery port P1) of the delivery ports of the pump device 1a and the hydraulic fluid delivered from the other (delivery port P3) of the delivery ports of the pump device 1b are merged and supplied to the travel motor 3e.

Abstract translation: 在通过使用具有两个输送端口的泵装置执行负载感测控制的液压驱动系统中，其输送流量由单个泵控制器控制，防止了多余的流量，减少了卸载阀和压力补偿阀的能量损失 其中两个致动器同时被驱动并且在它们之间产生相对较大的供给流量差的组合操作。 连杆臂3a连接起来，使得从泵装置1a的输送口P1和P2输送的液压流体合流并供给到动臂缸3a。 连杆臂3h被连接起来，使得从泵装置1b的输送口P3和P4输送的液压流体被合并并供给至臂缸3h。 连接运行马达3d，使得从泵装置1a的输送口的一个（输送口P2）输送的液压流体和从泵装置1b的输送口的一个（输送口P4）输送的液压流体是 合并并提供给旅行马达3d。 连接运行电动机3e，使得从泵装置1a的输送口的另一个（输送口P1）输送的液压流体和从泵装置的输送口的另一个（输送口P3）输送的液压流体 1b被合并并提供给行进电动机3e。