对船用舵机泵控系统中位置控制单元的三通阀控制非对称缸和四通阀控制对称缸的两种设计方案进行了理论分析和系统结构分析。
Two design strategies that three-way valve control unsymmetrical cylinder and four way valve control symmetrical cylinder were analyzed from principle and system structure aspects.
试验研究结果表明，前馈自适应控制是实现变量泵源阀控系统高精度跟踪控制的有效方法。
The tests results show that the controller is the effective control method for the variable pump & valve controlled system.
本文对双闭环泵控式速度控制系统提供了一种简便而有效的分析方法及校正设计。
This paper advances a simple and effective analytic method and compensating design for the velocity control system of a double closed loop pump control.
为了获得更加稳定的系统，在电荷泵中设计了结构简单的电流单元用于补偿额外的参数变化，并采用线性压控增益的VCO来减小参数的变化。
Furthermore, a simple adjustable current cell in the charge pump is proposed for additional stability compensation and a novel VCO with linear gain is adopted to limit the total variation.
给出了采用变转速泵控闭式回路控制差动缸的原理，建立了该系统的数学模型，进行了计算机数字仿真研究。
In this paper, the principle of variable speed pump control hydraulic differential cylinder is designed, and the simulation model of system is built, and the simulation research is carried out.
泵控容积调速系统中负载发生变化时，要保证马达输出转速恒定。
When the load of pump control cubage timing system changes, the motor output speed must be kept steady.
本文对变转速泵控马达液压系统进行了仿真分析，建立了系统中变频器、异步电动机、定量泵、马达以及负载的数学模型。
Simulation analysis was carried out for the variable speed pump-control-motor hydraulic system. Mathematic models of inverter, asynchronous motor, fixed pump and load were set up.
结合整机plc和CAN总线控制的电比例泵控液压系统是现代大型流动式起重机主要的传动控制形式。
Electric proportional pump-control hydraulic system controlled by PLC and CAN bus is the main format of driving control for modern heavy mobile cranes.
从仿真结果上看，LQR调节的性能优与PID控制，说明采用LQR调节器作为泵控马达恒速控制系统的控制方法是良好的。
In view of the result of simulation, LQR regulation is excellent to the PID control system, LQR regulation accuse as velocity steady controlling in the pump-controlled motor system is better.
喷漆：该系统主要由喷漆室、上下喷漆小车、传动机构、测高系统、气控系统、高压无气喷漆泵及管路等级成。
Painting Line:The system is arranged with painting room, up and down spraying cars, conveyor, height measuring system, gas controlling system, high pressure none air spraying pump and pipes.
同时介绍了基于PLC可编程控制器应用于离子泵电源的启动和过流保护的远控系统。
The features of the BEPCII linac vacuum system are described, with the remote monitoring system used in the process of ion pump power starting to normal operation and overflow protection based on PLC.
液压系统可以采用液控单向阀、蓄能器、液压泵等多种形式实现保压。
A single - direction valve controlled by liquid, an accumulator and hydraulic pumps can be used to keep pressure in hydraulic systems.
利用阀控泵-马达同步系统可以保证旋压机两个旋轮的同步精度，以保证旋件的质量。
The synchro accuracy of two spinning wheels of spin forming machine can he obtained by using the synchro system of valve controlled pump-motor, therefore the quality of workpiece is ensured.
因此对工程机械行走驱动泵控马达闭式回路系统及关键液压元件开展研究将有重大意义。
Therefore the research of pump-control-motor closed-circuit for mobile hydraulics driving system and key hydraulic components will have great significance.
泵控变量液压系统，与电比例操作系统紧密结合，节能高效，控制精确。
The pump controlled variable displacement hydraulic system works together with the electronic proportional control system, high efficiency, energy saving and precise control.
目前，电子动力方向盘和线控刹车已经在一些欧洲车型上被采用，在这个系统中已经削减了相当多的机械部件，如液压泵等。
At present, electronic power steering and brake-by-wire has a number of European models have been used in this system has been reduced a lot of mechanical parts such as hydraulic pumps and so on.
目前，电子动力方向盘和线控刹车已经在一些欧洲车型上被采用，在这个系统中已经削减了相当多的机械部件，如液压泵等。
At present, electronic power steering and brake-by-wire has a number of European models have been used in this system has been reduced a lot of mechanical parts such as hydraulic pumps and so on.
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