公开(公告)号：US20100070146A1

公开(公告)日：2010-03-18

申请号：US12444776

申请日：2007-10-24

Applicant: Shotaro ISHII ,  Akira FUKUSHIMA

Inventor： Shotaro ISHII ,  Akira FUKUSHIMA

IPC: G06F19/00

CPC classification number: E02F9/2246 ,  B60W2300/17 ,  E02F9/2235 ,  E02F9/2292 ,  E02F9/2296 ,  F02D29/02 ,  F04B17/05 ,  F04B49/06 ,  F04B2201/1202 ,  F04B2203/0604 ,  F04B2203/0605 ,  Y10T477/636 ,  Y10T477/688 ,  Y10T477/69383

Abstract: In an engine load control device of a work vehicle, an output of an engine is transmitted to a hydraulic actuator via a variable displacement type hydraulic pump. A controller is configured to calculate, based on a target rotational speed of the engine detected by a target rotational speed detecting portion and an actual rotational speed of the engine detected by an actual rotational speed detecting portion, a variation rate per unit time of a difference between the detected results, and to adjust the maximum absorbing torque of the hydraulic pump according to the magnitude of the variation rate.

Abstract translation: 在作业车辆的发动机负载控制装置中，发动机的输出通过变量型液压泵传递给液压致动器。 控制器被配置为基于由目标转速检测部检测到的发动机的目标转速和由实际转速检测部检测到的发动机的实际转速来计算每单位时间差的变化率 在检测结果之间，并根据变化率的大小来调节液压泵的最大吸收扭矩。

公开(公告)号：US07676331B2

公开(公告)日：2010-03-09

申请号：US12153280

申请日：2008-05-15

Applicant: Yoshikatsu Sawada ,  Yasutane Hijikata ,  Kazuma Miyazaki

Inventor： Yoshikatsu Sawada ,  Yasutane Hijikata ,  Kazuma Miyazaki

IPC: G01L3/00

CPC classification number: F04B35/002 ,  F04B2201/1202 ,  F04B2205/09

Abstract: A compressor drive torque estimating device suppresses a discrepancy between an estimated drive torque, which is based on a torque estimating device of a compressor, and an actual drive torque of the compressor. The discrepancy is due to delay in switching between employment of the torque estimating device and the actual drive torque of the compressor in judging the compressor torque. Thus, even in a transitional state immediately after the start of compression, the idling speed of an engine driving the compressor is controlled based on an accurate estimate of the compressor torque, to improve the stability of the engine idle speed.

Abstract translation: 压缩机驱动转矩估计装置抑制基于压缩机的转矩估计装置的估计驱动转矩与压缩机的实际驱动转矩之间的差异。 该差异是由于在判断压缩机转矩时在扭矩估计装置的使用与压缩机的实际驱动转矩之间的切换延迟。 因此，即使在压缩开始之后的过渡状态下，也可以基于压缩机转矩的精确估计来控制驱动压缩机的发动机的空转速度，以提高发动机怠速的稳定性。

公开(公告)号：US20090317266A1

公开(公告)日：2009-12-24

申请号：US12309697

申请日：2007-07-27

Applicant: William Hugh Salvin Rampen ,  Uwe Bernhard Pascal Stein ,  Michael Richard Fielding ,  Niall James Caldwell

Inventor： William Hugh Salvin Rampen ,  Uwe Bernhard Pascal Stein ,  Michael Richard Fielding ,  Niall James Caldwell

IPC: F04B49/22 ,  F15B13/02

CPC classification number: F04B7/0076 ,  F03C1/0447 ,  F04B1/06 ,  F04B49/065 ,  F04B49/243 ,  F04B2201/1202

Abstract: The present invention provides a hydraulic pump for use in driving a load with a control modulation system which modulates a primary control signal in order to accommodate variations in secondary changeable parameters which require control at a higher frequency or have a lower latency.

Abstract translation: 本发明提供了一种液压泵，其用于利用调制主控制信号的控制调制系统来驱动负载，以便适应需要以较高频率进行控制或具有较低延迟的二次可变参数的变化。

公开(公告)号：US20090252616A1

公开(公告)日：2009-10-08

申请号：US12484961

申请日：2009-06-15

Applicant: John Dexter Brunet ,  David Mark Stribling ,  Todd J. Dean ,  James D. Roach ,  Stephen Franklin Crain

Inventor： John Dexter Brunet ,  David Mark Stribling ,  Todd J. Dean ,  James D. Roach ,  Stephen Franklin Crain

IPC: F04B49/00

CPC classification number: F04B49/065 ,  F04B2201/1201 ,  F04B2201/1202 ,  F04B2201/1203 ,  F04B2203/0209 ,  F04B2205/05 ,  F04B2205/09

Abstract: A pumping system comprising a motor, wherein the motor has an operating speed, a pump coupled to the motor, wherein the pump has a volumetric displacement, a fluid end coupled to the pump, wherein the fluid end is operable to draw fluid from an input and provide fluid to an output, and a control system operable to regulate the motor and the pump in order to provide fluid to the output at a selected pressure and flow rate within a continuous range of pressures and flow rates between the peak horsepower output and peak torque output of the motor.

Abstract translation: 一种泵送系统，包括电动机，其中所述电动机具有运行速度，耦合到所述电动机的泵，其中所述泵具有体积位移，耦合到所述泵的流体端，其中所述流体端可操作以从输入 并且向输出提供流体，以及控制系统，其可操作以调节马达和泵，以便以连续的压力和峰值马力输出与峰值范围内的流量范围内的选定压力和流速向输出提供流体 电机转矩输出。

公开(公告)号：US20080121216A1

公开(公告)日：2008-05-29

申请号：US11604579

申请日：2006-11-27

Applicant: Scott F. Shafer ,  Timur Trubnikov ,  William John Love ,  Heather Rebholz ,  Jianhua Zhang

Inventor： Scott F. Shafer ,  Timur Trubnikov ,  William John Love ,  Heather Rebholz ,  Jianhua Zhang

IPC: F02M37/06

CPC classification number: F04B1/0413 ,  F02M59/06 ,  F02M59/366 ,  F02M63/0295 ,  F02M2200/03 ,  F04B1/02 ,  F04B1/0538 ,  F04B9/042 ,  F04B49/24 ,  F04B2201/1202 ,  F04B2201/1207

Abstract: A high volume high pressure common rail pump for a fuel system includes pairs of pump head assemblies in phase with each other but oriented in opposition to one another about a rotating cam shaft. Pump pistons in the pump head assemblies simultaneously undergo pumping strokes via a shared two lobe cam of the rotating cam shaft. The pump may include two pairs of pump head assemblies, and each head assembly may include two pump pistons. The cam shaft includes two cams sufficiently out of phase with one another that the cam shaft always has a positive torque even when the cam lobes are symmetrical. In addition, because the pumping is done simultaneously on opposite sides of the cam shaft, the forces on the cam shaft are balanced and its support bearings experience less wear and tear.

Abstract translation: 用于燃料系统的高容量高压共轨泵包括相互相位但相对于旋转的凸轮轴彼此相对定向的成对的泵头组件。 泵头组件中的泵活塞同时通过旋转凸轮轴的共享的两个凸角凸轮进行泵送冲程。 泵可以包括两对泵头组件，并且每个头组件可以包括两个泵活塞。 凸轮轴包括彼此完全不相位的两个凸轮，即使当凸轮凸角对称时，凸轮轴总是具有正转矩。 另外，由于在凸轮轴的相对侧同时进行泵送，所以凸轮轴上的力是平衡的，并且其支撑轴承经历较少的磨损。

公开(公告)号：US20030044289A1

公开(公告)日：2003-03-06

申请号：US10232306

申请日：2002-09-03

Inventor： Mikio Matsuda ,  Motohiko Ueda

IPC: F04B049/00

CPC classification number: F04B27/1804 ,  F04B2027/1854 ,  F04B2201/1202

Abstract: A variable capacity compressor like a swash plate type where a pressurized fluid is fed to a control pressure chamber such as a swash plate chamber to apply a backpressure to a piston etc. and the backpressure is changed by the capacity control valve, wherein the valve is streamlined and reduced in cost by providing a simple valve such as a two-way solenoid valve as a capacity control valve in a feed path to or discharge path from the control pressure chamber. By controlling the duty ratio of the valve, it is possible to smoothly change the capacity of the compressor. Further, a torque sensor is provided at a drive shaft, and the valve is controlled by a control unit to change the discharge capacity of the compressor in accordance with that detection value.

Abstract translation: 一种可变容量压缩机，例如斜盘式，其中加压流体被供给到诸如旋转斜盘室的控制压力室以向活塞等施加背压，并且背压由容量控制阀改变，其中阀是 通过在来自控制压力室的进给路径或排出路径中提供简单的阀，例如作为容量控制阀的双向电磁阀作为容量控制阀来简化并降低成本。 通过控制阀的占空比，可以平稳地改变压缩机的容量。 此外，在驱动轴处设置扭矩传感器，并且由控制单元控制阀，以根据该检测值改变压缩机的排出容量。

公开(公告)号：US20020141875A1

公开(公告)日：2002-10-03

申请号：US09821603

申请日：2001-03-29

Inventor： Peter T. Carstensen

IPC: F04B049/06

CPC classification number: F04B49/065 ,  F04B11/00 ,  F04B49/20 ,  F04B2201/1202 ,  F04B2201/1208 ,  F04B2203/0204 ,  F04B2203/0207

Abstract: Disclosure is made of a method for electronic polar attenuation of torque profile for positive displacement pumps by a processor where the attenuated torque profile is compared with the shaft displacement angle of the pump input shaft. The processor then signals a motor to power a pump with the result of pumping at a constant pressure at the full range of the designed system flow volume. In addition to the attenuated torque profile, the processor can also account for the response time of the pump drive, the motor inductive reactance, system inertia, application characteristics of the pump, and regenerative energy during deceleration of the pump.

Abstract translation: 公开了一种用于通过处理器对正排量泵的扭矩分布进行电子极化衰减的方法，其中衰减的扭矩分布与泵输入轴的轴位移角度进行比较。 处理器然后发信号通知电动机给泵泵送，在设计的系统流量的整个范围内以恒定的压力泵送。 除衰减的转矩曲线外，处理器还可以考虑泵驱动的响应时间，电机的电抗，系统惯量，泵的应用特性以及减速期间的再生能量。

公开(公告)号：US20010017036A1

公开(公告)日：2001-08-30

申请号：US09794807

申请日：2001-02-27

Inventor： Masahiro Kawaguchi ,  Masanori Sonobe ,  Ken Suitou

IPC: B60H001/32

CPC classification number: B60H1/3216 ,  B60H1/3208 ,  B60H2001/3266 ,  B60H2001/3275 ,  F04B27/1804 ,  F04B2027/1854 ,  F04B2201/1202 ,  F25B27/00 ,  F25B49/022

Abstract: A displacement control apparatus controls the displacement of a variable displacement controller. A drive shaft of the compressor is driven by an engine. Torque acting on the drive shaft represents the displacement. The apparatus includes a control valve, an air conditioner controller and a compressor controller. The control valve changes the compressor displacement. The air conditioner controller produces a torque setting signal, which represents a target torque, to the compressor controller. The compressor controller changes the valve opening based on the torque setting signal such that the actual load torque matches the target torque value. Accordingly, the compressor is controlled according to the torque. The air conditioner controller may send the torque setting signal to an engine controller, which eliminates the need for load torque maps.

Abstract translation: 位移控制装置控制可变排量控制器的位移。 压缩机的驱动轴由发动机驱动。 驱动轴上的扭矩代表位移。 该装置包括控制阀，空调控制器和压缩机控制器。 控制阀改变压缩机排量。 空调控制器向压缩机控制器产生表示目标转矩的转矩设定信号。 压缩机控制器基于转矩设定信号来改变阀门开度，使得实际负载转矩与目标转矩值匹配。 因此，根据转矩控制压缩机。 空调控制器可以将转矩设置信号发送到发动机控制器，这消除了对负载扭矩图的需要。

公开(公告)号：US5924296A

公开(公告)日：1999-07-20

申请号：US158805

申请日：1998-09-22

Applicant: Yoshiaki Takano ,  Hiroshi Kishita ,  Kurato Yamasaki

Inventor： Yoshiaki Takano ,  Hiroshi Kishita ,  Kurato Yamasaki

IPC: B60H1/32 ,  F04B27/18 ,  F25B49/02

CPC classification number: F04B27/1804 ,  B60H1/3208 ,  B60H1/3216 ,  B60H2001/325 ,  B60H2001/3269 ,  B60H2001/3273 ,  B60H2001/3275 ,  F04B2201/1202 ,  F04B2205/08 ,  F25B49/022

Abstract: An automobile air-conditioning apparatus in which the compressor torque of a variable capacity refrigerant compressor is estimated with improved accuracy. The compressor torque is measured on the basis of (1) high-side pressure of the refrigerating circuit directly influencing the compressor torque and (2) a control current value directly controlling the compressor. The accurately estimated compressor torque is then used to stabilize the speed of the vehicle engine driving the compressor.

Abstract translation: 以可靠的制冷剂压缩机的压缩机转矩的精度提高的汽车空调装置。 基于（1）直接影响压缩机转矩的制冷回路的高侧压力和（2）直接控制压缩机的控制电流值来测量压缩机扭矩。 然后精确估计的压缩机扭矩用于稳定驱动压缩机的车辆发动机的速度。

公开(公告)号：KR100638387B1

公开(公告)日：2006-10-26

申请号：KR1020047009324

申请日：2003-08-25

Applicant: 히다치 겡키 가부시키 가이샤

Inventor： 나카무라가즈노리 ,  히라타도이치 ,  아라이야스시 ,  고와타리요이치 ,  후루노요시노리 ,  야스다겐 ,  와타나베히로시

IPC: F02D29/04 ,  F04B49/06

CPC classification number: F02D29/04 ,  F04B17/05 ,  F04B49/002 ,  F04B49/065 ,  F04B2201/1202 ,  F15B11/165 ,  F15B11/167 ,  F15B2211/20523 ,  F15B2211/20553 ,  F15B2211/20584 ,  F15B2211/30505 ,  F15B2211/30525 ,  F15B2211/3056 ,  F15B2211/3116 ,  F15B2211/31576 ,  F15B2211/329 ,  F15B2211/50536 ,  F15B2211/50563 ,  F15B2211/575 ,  F15B2211/6054 ,  F15B2211/63 ,  F15B2211/6355 ,  F15B2211/66 ,  F15B2211/71 ,  F15B2211/865 ,  F15B2211/88

Abstract: 차체 컨트롤러(70A)는 환경센서(75~83)의 검출신호에 의거하여 토오크보정치를 연산하는 보정제어부(70Ab)를 가지고, 기본제어부(70Aa)로 제어되는 유압펌프의 최대 흡수 토오크를 보정한다. 엔진 컨트롤러(70B)는 환경센서(75~83)의 검출신호에 의거하여 분사보정치를 연산하는 보정제어부(70Bb)를 가지고, 기본제어부(70Ba)로 제어되는 연료분사장치(14)의 연료분사상태를 보정한다. 컨트롤러(70A, 70B)는 다시 연산요소변경부(171, 181)를 가지고, 통신 컨트롤러(70C)는 외부 단말(150)로부터 취득한 변경데이터가 연산요소변경부(171, 181)에 다운로드되어 보정제어부(70Ab, 70Bb)에 포함되는 해당하는 연산요소를 변경한다. 이에 의하여 어떠한 환경에 있어서도 유압펌프의 최대 흡수 토오크 또는 연료분사장치의 연료분사상태의 보정을 적절하게 행하여, 건설기계의 성능을 충분히 발휘시킬 수 있다.