公开(公告)号：US5881629A

公开(公告)日：1999-03-16

申请号：US808236

申请日：1997-02-28

Applicant: Wilhelm Gollner ,  Eckhard Skirde

Inventor： Wilhelm Gollner ,  Eckhard Skirde

IPC: F04B49/00 ,  F04B49/08 ,  F16H61/42 ,  F16H61/435 ,  F16H61/46 ,  F01B3/10

CPC classification number: F16H61/435 ,  F04B49/002 ,  F04B49/08 ,  F16H61/46 ,  F04B2201/1204 ,  F04B2201/12041 ,  F04B2201/1205 ,  F04B2201/12051 ,  F04B2203/1201 ,  F16H2059/6853

Abstract: A control device for variable hydraulic machines, and specifically for variable axial piston machines equipped with a servo system that is connected to a swash plate so that the discharge/displacement volume is infinitely variable. The hydraulic machine is equipped with a sensor that detects the piston displacement and is connected with an electronical control unit that controls the swash angle position of the swash plate and is pressure controlling the servo system by an electrohydraulic converter. A method for the infinite controlling of the volume flow of hydraulic machines, by which the servo system is connected to the swash plate of the hydraulic machine, and by which a conduction of a signal from a sensor to the control unit, a pressure controlling of the servo system by an electrohydraulic converter as well as the controlling of the swash angle position of the swash plate by the electronical control unit is realized.

Abstract translation: 一种用于可变液压机的控制装置，特别是用于可变轴向活塞机，其配备有连接到斜盘的伺服系统，使得排放/排出体积是无限可变的。 液压机配备有检测活塞位移的传感器，并且与控制斜盘的斜角位置的电子控制单元连接，并通过电动液压转换器对伺服系统进行压力控制。 一种用于无限制地控制液压机的体积流量的方法，通过该方法伺服系统连接到液压机的斜盘，并且通过该方法将传感器的信号传导到控制单元，压力控制 通过电动液压转换器的伺服系统以及通过电子控制单元控制斜盘的斜角位置被实现。

公开(公告)号：US5486097A

公开(公告)日：1996-01-23

申请号：US378712

申请日：1995-01-26

Applicant: Larey D. Schaffner

Inventor： Larey D. Schaffner

IPC: F04B49/00 ,  F04B1/26

CPC classification number: F04B49/002 ,  F04B2201/1205 ,  F04B2205/08 ,  F04B2205/09

Abstract: A torque limiter control sets the limit of power which may be absorbed by a pump. A feedback system adjusts the displacement of the pump in responses to changes in the pressure of working fluid at the pump outlet to maintain a set power.

Abstract translation: 扭矩限制器控制设置泵可能吸收的功率限制。 反馈系统响应于泵出口处的工作流体的压力的变化来调节泵的位移以维持设定功率。

公开(公告)号：US20020176784A1

公开(公告)日：2002-11-28

申请号：US09858738

申请日：2001-05-16

Inventor： Hongliu Du

IPC: F04B049/00 ,  F04B001/00 ,  F04B001/26

CPC classification number: F04B49/065 ,  F04B1/324 ,  F04B2201/1203 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2203/0208 ,  F04B2203/0604 ,  F04B2205/05

Abstract: A method and apparatus for controlling a variable displacement hydraulic pump having a swashplate pivotally attached to the pump. The method and apparatus includes determining a desired swashplate angle as a function of a power limit of the pump, determining an actual swashplate angle, determining a value of discharge pressure of the pump, moving a servo valve spool to a desired position as a function of the desired swashplate angle, the actual swashplate angle and the discharge pressure, and responsively moving the swashplate to the desired swashplate angle position.

Abstract translation: 一种用于控制可变容量液压泵的方法和装置，其具有枢转地附接到泵的斜盘。 该方法和装置包括根据泵的功率极限确定期望的斜盘角度，确定实际斜盘角度，确定泵的排出压力的值，将伺服阀阀芯移动到期望位置作为函数 所需的斜盘角度，实际斜盘角度和排出压力，以及响应地将旋转斜盘移动到期望的斜盘角度位置。

公开(公告)号：US06176684B1

公开(公告)日：2001-01-23

申请号：US09201444

申请日：1998-11-30

Applicant: Daniel E. Zimmermann

Inventor： Daniel E. Zimmermann

IPC: F04B126

CPC classification number: F04B49/12 ,  F04B2201/1205 ,  F04B2207/043

Abstract: A variable displacement hydraulic piston unit with electrically operated variable displacement control and timing control is disclosed, the displacement control utilizing an electric motor such as a stepper motor and cam arrangement operable for changing the tilt angle of a swash plate of the unit, and the timing control including an electric motor, such as a stepper motor operable for rotating the swash plate relative to the pistons of the unit for effecting timing changes, the unit being operable as a pump, motor, or the like.

Abstract translation: 公开了一种具有电动可变排量控制和定时控制的可变排量液压活塞单元，利用诸如步进电机的电动机和可用于改变单元的斜盘的倾斜角度的凸轮装置的位移控制和定时 包括电动机的控制器，例如可操作以相对于单元的活塞旋转斜盘的步进电机，用于实现定时改变，该单元可操作为泵，电动机等。

公开(公告)号：US5879136A

公开(公告)日：1999-03-09

申请号：US687511

申请日：1996-08-01

Applicant: Walter Robeller ,  Berthold Pfuhl ,  Volkmar Leutner ,  Dieter Bertsch ,  Joachim Zumbraegel

Inventor： Walter Robeller ,  Berthold Pfuhl ,  Volkmar Leutner ,  Dieter Bertsch ,  Joachim Zumbraegel

IPC: F04B11/00 ,  F04B49/06 ,  F04B49/08 ,  F04B49/00

CPC classification number: F04B49/06 ,  F04B11/00 ,  F04B49/08 ,  F04B2201/0804 ,  F04B2201/1205 ,  F04B2205/16

Abstract: An electro hydraulically adjustable pump has an adjustment member which is adjustable by at least one adjustment piston, a control valve which acts upon the at least one adjusting piston, a servo amplifier which triggers the control valve and which is supplied with an actual value of a pump adjustment and an actual value of a control valve adjustment, and an element which produces an additional pulse-shape adjusting signal as a function of an angle of rotation of the pump so as to control the control valve through the servo amplifier by the additional pulse-shaped adjustment signal.

Abstract translation: PCT No.PCT / DE95 / 00402 Sec。 371日期：1996年8月1日 102（e）日期1996年8月1日PCT 1995年3月23日PCT PCT。 出版物WO95 / 26470 日期1995年10月5日电液压可调节泵具有可由至少一个调节活塞调节的调节构件，作用于至少一个调节活塞的控制阀，触发控制阀并且被供给的伺服放大器 泵调节的实际值和控制阀调节的实际值，以及产生作为泵的旋转角度的函数的附加脉冲形状调节信号的元件，以通过伺服来控制控制阀 放大器由附加的脉冲形调整信号。

公开(公告)号：US20040103659A1

公开(公告)日：2004-06-03

申请号：US10638514

申请日：2003-08-11

Inventor： Kevin L. Johnson ,  Mark E. Bruner ,  Michael D. Smith

IPC: F03C001/00

CPC classification number: F04B1/2078 ,  A01D69/03 ,  A01D75/20 ,  F04B1/324 ,  F04B2201/1205 ,  F16H59/68

Abstract: A lawnmower including a frame, an engine having an electrical system and attached to the frame, the engine being started by a starter mechanism. A mower deck assembly having a rotating blade is connected to the frame with the blade being selectively engaged with the engine. A reversible transmission is driven by the engine and includes a shift mechanism having a forward, a neutral, and a reverse position, and at least one sensor for sensing the position of the shift mechanism. The sensor is capable of at least one of directing a signal to the mower deck assembly for operation and non-operation of the mower deck assembly and directing a signal to the starter circuit for prevention of start-up when the shift mechanism is not in the neutral position.

Abstract translation: 包括框架的割草机，具有电气系统并附接到框架的发动机，发动机由起动机构启动。 具有旋转叶片的割草机组件连接到框架，其中叶片选择性地与发动机接合。 可逆变速器由发动机驱动并且包括具有前进档，中立档和倒档位置的换档机构以及用于感测换档机构的位置的至少一个传感器。 该传感器能够将信号引导到割草机甲板组件以用于割草机组件的操作和不操作，并且将信号引导到起动器电路以防止当变速机构不在起动器时启动 中立位置

公开(公告)号：US06623247B2

公开(公告)日：2003-09-23

申请号：US09858738

申请日：2001-05-16

Applicant: Hongliu Du

Inventor： Hongliu Du

IPC: F04B4900

CPC classification number: F04B49/065 ,  F04B1/324 ,  F04B2201/1203 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2203/0208 ,  F04B2203/0604 ,  F04B2205/05

Abstract: A method and apparatus for controlling a variable displacement hydraulic pump having a swashplate pivotally attached to the pump. The method and apparatus includes determining a desired swashplate angle as a function of a power limit of the pump, determining an actual swashplate angle, determining a value of discharge pressure of the pump, moving a servo valve spool to a desired position as a function of the desired swashplate angle, the actual swashplate angle and the discharge pressure, and responsively moving the swashplate to the desired swashplate angle position.

公开(公告)号：US5913663A

公开(公告)日：1999-06-22

申请号：US693284

申请日：1996-08-14

Applicant: Mikko Erkkilae ,  Karl-Heinz Vogl ,  Gunter Fertig ,  Felix zu Hohenlohe

Inventor： Mikko Erkkilae ,  Karl-Heinz Vogl ,  Gunter Fertig ,  Felix zu Hohenlohe

IPC: F04B49/06 ,  F04B49/08 ,  F04B49/00

CPC classification number: F04B49/065 ,  F04B49/08 ,  F04B2201/1205

Abstract: A total power regulation device for a plurality of variable displacement pumps (1, 2), each having a regulation valve (18) which regulates its displacement volume, which is acted upon--against a counter-pressure--by a control pressure corresponding to the working pressure of the variable displacement pump. When the control pressure exceeds the counter-pressure, the regulation valve regulates the variable displacement pump along a characteristic line (KL) of constant torque. To adjust the desired values of the individual drive torques simply, and to prevent torques from exceeding a desired value, an electronic control unit (16)--connected to measuring detectors (25) for detecting the displacement volumes of the variable displacement pumps--stores the desired value totals of the counter-pressures and the torque characteristic lines (KL) of the variable displacement pumps, and has a desired value setting device (27) for dividing the desired value total. The electronic control unit sets the torque characteristic lines (KL.sub.1, KL.sub.2) and sends control signals to the associated control elements (24) for generating counter-pressures which correspond to the predetermined counter-pressure desired values. The electronic control unit, upon response of each regulation valve, determines the working pressure (p)--along the torque characteristic line (KL.sub.1, KL.sub.2)--corresponding to the displacement volume (V), and processes the working pressure to a control signal for the control element for generating a counter-pressure.

Abstract translation: PCT No.PCT / EP95 / 00382 Sec。 371日期：1996年8月14日 102（e）日期1996年8月14日PCT提交1995年2月2日PCT公布。 WO95 / 22694 PCT出版物 日期1995年8月24日用于多个可变排量泵（1,2）的总功率调节装置，每个具有调节阀（18），调节阀（18），其调节其排量，其作用在反压力作用下 控制压力与变排量泵的工作压力相对应。 当控制压力超过反压力时，调节阀沿着恒定扭矩的特征线（KL）调节可变排量泵。 为了简单地调整各个驱动转矩的期望值，并且为了防止转矩超过期望值，连接到用于检测可变排量泵的排量的测量检测器（25）的电子控制单元（16）存储 可变排量泵的反压力和扭矩特性线（KL）的期望值总和，并且具有用于分割期望值总计的期望值设定装置（27）。 电子控制单元设置转矩特性线（KL1，KL2），并将控制信号发送到相关联的控制元件（24），用于产生对应于预定反压期望值的反压。 电子控制单元根据每个调节阀的响应，确定对应于排量（V）的转矩特性线（KL1，KL2）的工作压力（p），并将工作压力处理为控制信号 用于产生反压力的控制元件。

公开(公告)号：US4534707A

公开(公告)日：1985-08-13

申请号：US609675

申请日：1984-05-14

Applicant: Randall M. Mitchell

Inventor： Randall M. Mitchell

IPC: B60W10/04 ,  B60W10/06 ,  B60W30/18 ,  E02F9/22 ,  F02D29/00 ,  F04B49/06 ,  F16H61/42 ,  F16H61/46 ,  F16H61/465 ,  F04B49/00

CPC classification number: B60W10/06 ,  B60W10/04 ,  B60W10/103 ,  B60W30/18 ,  E02F9/2246 ,  F04B49/065 ,  F16H61/465 ,  F04B2201/1201 ,  F04B2201/1205 ,  F16H61/42

Abstract: An apparatus for regulating the speed of internal combustion engine of a hydrostatic system. A fuel control means acts to control the quantity of fuel delivered to the engine responsive to the immediate hydraulic flow demanded by operation of the hydrostatic system. The speed of the engine is set to one of a plurality of discrete levels in response to the required flow being within one of a corresponding plurality of preselected ranges.

Abstract translation: 一种用于调节静液压系统内燃机速度的装置。 燃料控制装置用于根据流体静力系统的操作所需的立即液压流量来控制输送到发动机的燃油量。 响应于所需流量在相应的多个预选范围之一内，发动机的速度被设定为多个离散水平中的一个。

公开(公告)号：US07322802B2

公开(公告)日：2008-01-29

申请号：US10494183

申请日：2002-10-04

Applicant: Hartmut Benckert ,  Paul Von Baeumen ,  Wolf-Michael Petzold

Inventor： Hartmut Benckert ,  Paul Von Baeumen ,  Wolf-Michael Petzold

IPC: F04B17/00

CPC classification number: F04B49/065 ,  F04B15/02 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2203/0209 ,  F04B2203/0605 ,  Y10S417/90

Abstract: A thick matter pump comprising a drive motor (50), a (reversible) hydraulic pump (6), and two hydraulic cylinders (5, 5′) coupled to conveyor cylinders (7, 7′) for conveying the thick matter. A regulator regulates the rotational speed N of the drive motor (50), and a regulating clement (18, 20) regulates the displacement volume V of the hydraulic pump (6). A control module (54) regulates the rotational speed N of the motor and the displacement volume V. For improved operational ease and reduction of fuel requirements, noise and waste gas emission, the control module (54) comprises a final control element (56) for regulating the conveyance capacity of the conveyor cylinders (7, 7′), and an electronic control unit (108) which reacts to the position of the final control element (56) and allocates a nominal value to the rotational speed regulator and to the displacement volume regulator (20), in a software-assisted manner.

Abstract translation: 一种厚物质泵，包括驱动马达（50），（可逆的）液压泵（6）和耦合到用于输送厚物质的输送机筒（7,7'）的两个液压缸（5,5'）。 调节器调节驱动马达（50）的旋转速度N，并且调节元件（18,20）调节液压泵（6）的排量V。 控制模块（54）包括最终控制元件（56）和控制模块（54），控制模块（54）调节电动机的转速N和排量V。为了改善操作容易性并降低燃料需求，噪声和废气排放， 用于调节输送机气缸（7,7'）的输送能力和对最终控制元件（56）的位置作出反应并向转速调节器分配额定值的电子控制单元（108） 位移量调节器（20），以软件辅助的方式。