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1. 发明授权

EP0419984B1 Electrohydraulic control of a hydraulic machine 有权
标题翻译：电液控制液压机。
公开(公告)号：EP0419984B1
公开(公告)日：1995-11-08
申请号：EP90117815.2
申请日：1990-09-15
申请人： VICKERS INCORPORATED
发明人： Burgess, Roy T. , Gunda, Rajamouli , Herta, Frank , Hodges, Robert C. , Kessler, James A. , Leemhuis, Richard S. , McCarty, Michael R. , Stephens, Robert W.
IPC分类号： F04B49/06
CPC分类号： G05D16/2066 , F04B49/065 , F04B2201/1201 , F04B2201/12051 , F04B2205/05 , F04B2207/01 , F04B2207/0422

2. 发明授权

EP0393697B1 Electrohydraulic system 失效
标题翻译：电动液压系统。
公开(公告)号：EP0393697B1
公开(公告)日：1995-06-28
申请号：EP90107523.4
申请日：1990-04-20
申请人： VICKERS INCORPORATED
发明人： Dahroug, Mohamed E. , El-Ibiary, Yehia M. , Gunda, Rajamouli , Smith, Paul M. , Silverthorn, Randall G.
IPC分类号： G05B19/416 , F15B21/08 , B22D17/32
CPC分类号： G05B19/416 , B22D17/32 , G05B2219/34215 , G05B2219/35312 , G05B2219/36171 , G05B2219/36513 , G05B2219/37133 , G05B2219/37313 , G05B2219/37333 , G05B2219/37399 , G05B2219/41301 , G05B2219/42123 , G05B2219/45244

3. 发明授权

EP0332132B1 Electrohydraulic servo system, especially for injection molding machines 失效
标题翻译：电动伺服系统，特别适用于注塑机
公开(公告)号：EP0332132B1
公开(公告)日：1993-09-29
申请号：EP89103985.1
申请日：1989-03-07
申请人： Vickers Incorporated
发明人： Gunda, Rajamouli
IPC分类号： B29C45/82
CPC分类号： B29C45/77 , B29C45/82 , Y10T137/7759 , Y10T137/7761

4. 发明公开

EP0393650A3 High resolution pulse width modulation 失效
标题翻译：高分辨率脉冲宽度调制
公开(公告)号：EP0393650A3
公开(公告)日：1991-08-28
申请号：EP90107400.5
申请日：1990-04-19
申请人： VICKERS INCORPORATED
发明人： Miller, John A. , Leemhuis, Richard S. , Gunda, Rajamouli
IPC分类号： G05B19/414 , G05B11/28
CPC分类号： G05B11/28 , G05B19/19 , G05B19/4142 , G05B2219/34045 , G05B2219/34356 , G05B2219/41301 , G05B2219/42237
摘要： An electrohydraulic servo system in which a microprocessor-based controller directs a pulse width modulated control signal to a servo valve for controlling flow of hydraulic fluid therethrough. Duration of each pulse in the pulse width modulated control signal is separately controlled by selectively incrementing or decrementing duration of the pulse in increments of the microprocessor clock period. Signal transition is controlled by a timer interrupt in which time required to enter the interrupt routine is measured following generation of the interrupt, and further operation is delayed by a complementary time, so that control signal transition takes place a fixed preselected number of clock periods after generation of a timer interrupt. In this way, timer interrupt latency is eliminated, and resolution of the pulse width modulated signal is enhanced through individual duration control of the signal pulses while maintaining a fixed modulated signal period.

5. 发明授权

EP0272598B1 Electrohydraulic servo system 有权
标题翻译：电动伺服系统
公开(公告)号：EP0272598B1
公开(公告)日：1993-09-01
申请号：EP87118652.4
申请日：1987-12-16
申请人： Vickers Incorporated
发明人： Gunda, Rajamouli , McCarty, Michael R. , Rode, Melvin A.
IPC分类号： F15B9/03 , F04B49/06
CPC分类号： F15B19/002 , G05B19/414 , G05B2219/33337 , G05B2219/41309

6. 发明公开

EP0272598A3 Electrohydraulic servo system 有权
标题翻译：电动伺服系统
公开(公告)号：EP0272598A3
公开(公告)日：1990-05-16
申请号：EP87118652.4
申请日：1987-12-16
申请人： Vickers Incorporated
发明人： Gunda, Rajamouli , McCarty, Michael R. , Rode, Melvin A.
IPC分类号： F15B9/03 , F04B49/06
CPC分类号： F15B19/002 , G05B19/414 , G05B2219/33337 , G05B2219/41309
摘要： An electrohydraulic servo system which includes one or a plurality of pressure compensated flow control servo valves (12, 14) for feeding hydraulic fluid from a variable displacement pump (16) to associated actuators (18, 20) and loads (1, 2). A closed-loop velocity-control servo system (22, 24) is coupled to each servo valve (12, 14), and is responsive to velocity command inputs (V1, V2) from an operator (26) and to feedback signals (Y1, Y2) from the respective loads (1, 2) for providing flow control signals (U1, U2) to the respective servo valves (12, 14). A pump controller (36) receives the valve flow control signals (U1, U2), derives associated valve vlow signals (Q1, Q2) from predetermined functional characteristics of the pressure compensated valves, and obtains a total flow demand (Qc) as a function of the sum of the indicated individual valve flows. A pump displacement command (Dc) is derived as a combined function of total flwo demand (Qc) and pump speed (N) to accommodate volumetric inefficiencies which vary with speed (N), and the displacement command signal (Dc) is fed to a pump displacement servo control loop (60) for controlling pump output. Displacement command (Dc) is limited (at 50, 52) as a function (NL) of power available at the engine coupled to the pump to prevent engine stall.

7. 发明授权

EP0186092B1 Power transmission 有权
标题翻译：电力传输
公开(公告)号：EP0186092B1
公开(公告)日：1990-01-31
申请号：EP85116042.4
申请日：1985-12-16
申请人： Vickers Incorporated
发明人： Gunda, Rajamouli , Taplin, Lael Brent
IPC分类号： G05D3/14
CPC分类号： G05D3/14 , G05D3/1445

8. 发明公开

EP0247335A3 Electrohydrolic system with distributed control 失效
标题翻译：具有分布式控制的分布式控制电液系统的电液系统
公开(公告)号：EP0247335A3
公开(公告)日：1989-08-02
申请号：EP87105044.9
申请日：1987-04-04
申请人： Vickers Incorporated
发明人： Edwards, Thomas L. , Ibiary, Yehia EL M. , Gunda, Rajamouli , Leemhuis, Richard S. , Phillips, Fred H. , Rode, Melvin A.
IPC分类号： G05B19/417
CPC分类号： G05B19/414 , G05B2219/33337 , G05B2219/41309
摘要： An electrohydraulic system includes a plurality of electrohydraulic devices (30,32,34,36) individually controlled by microprocessor-based control electronics. The device controllers (30B,32B,34B,36B) are connected in common by a bidirectional serial data bus to a master controller (42) for coordinating operation of the various devices. Internal programming within the master controller (42) establishes a repetitive time-sequence of windows for communications with the various device controllers (30B,32B,34B,36B) for downloading control signals and parameters, and for uploading data indicative of system status and operation. The various device controllers include internal programming for operating the associated hydraulic devices as a function of control signals and parameters received from the master controller (42).
摘要翻译：电液系统包括由基于微处理器的控制电子装置单独控制的多个电动液压装置（30,32,34,36）。设备控制器（30B，32B，34B，36B）通过双向串行数据总线共同连接到主控制器（42），用于协调各种设备的操作。主控制器（42）内的内部编程建立了用于与各种设备控制器（30B，32B，34B，36B）进行通信的窗口的重复时间序列，用于下载控制信号和参数，并且用于上传指示系统状态和操作的数据。各种设备控制器包括用于根据从主控制器（42）接收的控制信号和参数来操作相关联的液压设备的内部编程。

9. 发明公开

EP0272598A2 Electrohydraulic servo system 有权
标题翻译： Elektrohydraulisches Hilfskraftsystem。
公开(公告)号：EP0272598A2
公开(公告)日：1988-06-29
申请号：EP87118652.4
申请日：1987-12-16
申请人： Vickers Incorporated
发明人： Gunda, Rajamouli , McCarty, Michael R. , Rode, Melvin A.
IPC分类号： F15B9/03 , F04B49/06
CPC分类号： F15B19/002 , G05B19/414 , G05B2219/33337 , G05B2219/41309
摘要： An electrohydraulic servo system which includes one or a plurality of pressure compensated flow control servo valves (12, 14) for feeding hydraulic fluid from a variable displacement pump (16) to associated actuators (18, 20) and loads (1, 2). A closed-loop velocity-control servo system (22, 24) is coupled to each servo valve (12, 14), and is responsive to velocity command inputs (V1, V2) from an operator (26) and to feedback signals (Y1, Y2) from the respective loads (1, 2) for providing flow control signals (U1, U2) to the respective servo valves (12, 14). A pump controller (36) receives the valve flow control signals (U1, U2), derives associated valve vlow signals (Q1, Q2) from predetermined functional characteristics of the pressure compensated valves, and obtains a total flow demand (Qc) as a function of the sum of the indicated individual valve flows. A pump displacement command (Dc) is derived as a combined function of total flwo demand (Qc) and pump speed (N) to accommodate volumetric inefficiencies which vary with speed (N), and the displacement command signal (Dc) is fed to a pump displacement servo control loop (60) for controlling pump output. Displacement command (Dc) is limited (at 50, 52) as a function (NL) of power available at the engine coupled to the pump to prevent engine stall.
摘要翻译：一种电动液压伺服系统，其包括一个或多个压力补偿流量控制伺服阀（12,14），用于将液压流体从可变排量泵（16）输送到相关联的致动器（18,20）和负载（1,2）。闭环速度控制伺服系统（22,24）耦合到每个伺服阀（12,14），并响应于来自操作者（26）的速度命令输入（V1，V2）和反馈信号（Y1 ，Y2），用于向各个伺服阀（12,14）提供流量控制信号（U1，U2）。泵控制器（36）接收阀流量控制信号（U1，U2），根据压力补偿阀的预定功能特性导出相关的阀门流出信号（Q1，Q2），并获得总流量需求（Qc）作为函数指示单个阀流量的总和。泵排量指令（Dc）被导出为总流量需求（Qc）和泵速（N）的组合函数，以适应随速度（N）而变化的体积效率，并且位移指令信号（Dc）被馈送到泵排量伺服控制回路（60），用于控制泵输出。排量指令（Dc）作为与泵连接的发动机可用功率（NL）的限制（50,52）以防止发动机停转。

10. 发明授权

EP0104613B1 Power transmission 失效
标题翻译：电力传输
公开(公告)号：EP0104613B1
公开(公告)日：1988-03-30
申请号：EP83109438.8
申请日：1983-09-22
申请人： Vickers Incorporated
发明人： Gunda, Rajamouli , McCarty, Michael Rhu , Rode, Melvin Arthur
IPC分类号： F15B11/16 , B60R16/08 , B62D5/06
CPC分类号： E02F9/2217 , E02F9/2242 , E02F9/2292 , E02F9/2296 , F15B21/087

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