目的减少由于节能液压源下的阀控系统变增益带来的跟踪误差。
Aim To reduce the error of the valve controlled system with energy saving hydraulic pump, which is caused by variable gain characteristic.
大惯性负载加减速过程的平稳性问题严重影响了阀控系统的动态特性。
The smoothness of acceleration and deceleration process is a serious problem in valve control system with high inertia loads.
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.
首先，建立了阀控非对称缸位置控制系统与力控制系统的数学模型。
At first, it studied the plant model of position and force system about valve control unsymmetrical hydraulic ram.
对阀控马达系统寻求PID控制参数进行校正，为了更加真实的反映实际情况，以阀控马达系统为例建立了离散仿真模型。
PID parameters are seek to correct valve-controlled motor system., to reflect actual conditions truer dispersed artificial model is set up with valve-controlled motor for the example.
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.
阀控式铅酸蓄电池简称VRLA电池，维护量小，在变电站直流系统广泛应用。
Valve regulated lead acid (VRLA) battery is applied extensively in substation DC systems as its less maintenance.
该工程系统研究、主设备制造，阀控、站控，直流保护设备研制，安装及调试全部由国内单位承担。
The system study, manufacture of main equipment , development of valve control, station control, DC protection, installation and commissioning have all been undertaken by domestic organizations.
论述了直控步进式水压数字节流阀的工作原理及其控制系统的设计。
This paper illustrates operation principle of the digital throttling valve and design of its control system.
研究了用位总线微机构成的液压阀控马达速度闭环数字控制系统。
This paper deals with a closed-loop digital control for a hydraulic valve, controlled motor speed system.
该电液比例先导控制系统可以在采用液控多路阀的装载机上直接安装使用。
The systems can be installed directly on loaders that were originally equipped with manually operated hydraulic actuated directional control valves.
阀控非对称缸由于结构简单、空间体积小，广泛地应用于液压伺服系统中。
Because of the simple structure and small spatial volume, valve controlled asymmetric cylinder is widely applied in hydraulic servo system.
作者指出液控单向阀在液压系统设计和运行中容易出现的错误，列出了正确和错误的对比。
This text points out the design mistakes for hydraulic one-way valve in hydraulic pressure system is easy to take place.
介绍一种能够在工程机械液压系统中改变两个定量马达连接方式的液控换向阀。
The author introduces a kind of hydraulically controlled direction valve to change the connecting mode between two fixed displacement motors in hydraulic systems of construction machinery.
以测试冻土冻胀的力学行为为研究背景，设计了一套基于阀控非对称缸的液压力控制系统。
By regarding testing mechanics behaviors of frozen soil frost heave as the research background, a hydraulic force control system was designed on the basis of valve control asymmetric cylinder.
建立了典型伺服阀控摆式车辆动力系统的物理模型和线性化数学模型。
The physical model and the linear mathematical model of a typical servo valve-controlled tilting car are built up.
通信电源系统中的阀控密封铅蓄电池组是长期处于浮充状态之下工作的。
VRLA group used in communication power sources was operated under conditions of floating charge for a long period of time .
在比例方向阀控缸气动位置伺服系统中，置中电压是影响控制精度的重要因素之一。
In pneumatic position servo system with proportional directional control valve and control cylinder, the centre adjust emt voltage is one of the important factors that influence control precision.
针对阀控密封式铅酸蓄电池在电力系统的使用情况，介绍了几种实用的维护方法，并进行了可行性探讨。
In view of the operation situation of valve-control sealed battery in power system, some practical maintenance methods are presented in this paper and their feasibility is discussed.
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.
分析了非对称气动伺服阀控单作用气缸的气动压力控制系统的数学模型。
The mathematical model of a pneumatic force control system with an asymmetric servovalve and a single-acting cylinder were described.
微阀是微流控系统中起控制限流的重要组成器件。
Valves are important components to control flows in microfluidic system.
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.
针对阀控缸系统的摩擦力对系统控制性能造成的不良影响，提出了一种新的减小摩擦力影响的补偿方法。
The friction mechanism of the valve-controlled cylinder system and the adverse effect of friction on the system control performance were analyzed.
对混合动力车用电化学能源系统的技术要求和各种电化学能源——蓄电池、超级电容器、燃料电池、阀控超电池等的优缺点作了简要的论述。
The advantages and disadvantages of electrochemical power sources, which included storage batteries, super-capacitors, fuel cells, valve-regulated ultra battery, were also discussed.
设计了一种模糊控制器，实现了PWM高速开关阀控液压缸位置系统的精确控制。
Design of a fuzzy controller, to achieve a precise control of the hydraulic cylinder position by the high-speed on-off valve was based on PWM.
本文中电液伺服系统为阀控马达系统，主要包括电液伺服阀、放大器、液压马达、反馈元件等。
In this paper, the electro-hydraulic servo system is valve-controlled motor, mainly include electro-hydraulic servo valves, amplifier, hydraulic motors, and other feedback components.
对通信系统中阀控密封铅酸（VRLA）蓄电池的过充电保护与温度补偿特性进行了模拟实验研究。
Overcharge protection and temperature-compensation characteristics of VRLA battery used for communication system were studied.
就邮电系统及供电系统广泛使用VRLA阀控密封铅酸免维护蓄电池，由于该蓄电池的检测技术相对于开放式蓄电池更为复杂。
The VRLA storage battery is wide used in post and telecom system, The technique of detecting VRLA storage battery is much complex then that of detecting open type one's.
针对阀控非对称缸系统，分别推导了液压缸正反向运动时的状态方程，并最终统一成一个非线性模型。
The state equations is deduced for the valve con - trolled asymmetrical cylinder system when the cylinder moving forward and reverse, and one nonlinear model is finally integrated.
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