Carlos eduardo jeronymo , hironao yamada , takayoshi muto . adaptive predictive controller for hydraulic system driven by fast - switching on / off solenoid valves [ j ] . jsme international journal , series c , 1996 , 39 ( 3 ) 刘忠,杨襄璧,赵宏强.基于高速开关阀的液压控制系统及其控制方式的应用研究[ j ] .凿岩机械气动工具, 1998 ( 4 )
From the research of the experiment and the simulation , conclusions and suggestions are gotten : ( 1 ) the fast hydraulic system which uses fast on - off valve as the pilot valves to control the logic valve is an available system 从仿真和实验研究可得出如下结论和建议： ( 1 )本课题所研究的采用快速开关阀作先导阀控制逻辑阀的快速液压系统，是比较可行的方案。
C ) to create the pwm signal that drives the new high speed on / off valve , the currency pwm - confection of intel 80c 196mc is used , and the voltage , power magnify electrocircuit that used for the actuater ' s dynamic application is chosed and designed 应用intel80c196mc中的通用pwm调制输出，产生驱动高速开关阀的pwm信号，选择和设计了适合驱动器动态应用的电压、功率放大电路。
This valve uses the principle of two - stage pressure reducing variation and , when to lower the switch valve , the shock from the water pressure to the valve casing shortens the start time of this valve under the highest medium pressure and makes it with the incomparable superiority of energy saving among the pulse - type electric - controlled valves 该阀采用二级减压变化原理，降低开关阀时水压对阀体等配件的冲击，提高电磁阀的可靠性和工作寿命，缩短了阀在最高介质压力下开启时间，使其在脉冲式电控阀门中具有无可伦比的节能优势。
Then a vsc controller using on - off valve and two potentiometers are designed for cushioning control system . it can realize the balanced , no shock , no reversing cushioning . experiments under different air pressure , load mass are carried out , and the results prove that the vsc controller can be used in pneumatic cushioning 第五章首先介绍了变结构控制的原理和应用发展情况，然后针对本实验系统设计了一个使用开关阀和端位位移传感器的变结构控制方案，实现缓冲过程的平稳无冲击和无回弹要求，并在不同气源压力、不同负载质量下分析了控制性能的变化，实验结果证明缓冲控制采用变结构控制是可行的，并具有很强的鲁棒性。
B ) the design of the new valve : for the displacement of the actuator , hydraulic magnify is used , and the stracture that has comparatively motion beteen harness and body and comparatively stillness between harness and body is adopted . the static characteristic of the new valve and also its dynamic characteristic , the factors that affect the valve ' s characteristic are analyzed 设计新型高速开关阀：对驱动器位移采用了液压式放大，并采用阀套与阀体之间有相对运动，阀芯相对阀体不动的结构。分析了新型高速开关阀静动态特性以及影响其性能的主要因素。
In this paper , the on - off procedure and drive mode of high - speed on - off valves are introduced , the principle of pwm most in use recently is introduced . based on the forming method of pwm signal with software , the conclusion is drawn that the occupancy of pwm signal is only in relation to the control value calculated and the mean flowrate is linear to the control value when the carrier wave ( cycle and amplitude ) is chosen 论文介绍了高速开关阀的开关过程和阀的驱动方式。介绍了目前最常用的流体脉冲控制方法?脉宽调制的机理。介绍了pwm信号的软件生成方法,并由此证明,高速开关阀可以实现流量与控制量成正比的模拟控制所能实现的伺服控制功能。
In order to overcome the disadvantages of servo valves and the spool valves , the fast hydraulic system controlled by the fast on - off valve is researched which uses the on - off valves as the pilot valves . they are used to control the opening and closing of the logic valves , thus they can control the pressure and the flow . so they can control the movement direction and the velocity of the piston 为了克服伺服阀和滑阀的不足，本文所研究的基于快速开关阀的快速液压系统采用快速开关阀作先导阀，控制逻辑阀的开启和关闭，从而控制液流的通断和压力的高低、流量的大小，以实现对活塞运动方向、速度的控制。
Fcd . 3 138d : 4ds outer - thread copper pipe union at both ends of the inlet and the outlet this valve uses the principle of two - stage pressure reducing variation and , when to lower the switch valve , the shock from the water pressure to the valve casing shortens the start time of this valve under the highest medium pressure and makes it with the incomparable superiority of energy saving among the pulse - type electric - controlled valves 该阀采用二级减压变化原理，降低开关阀时水压对阀体等配件的冲击，提高电磁阀的可靠性和工作寿命，缩短了阀在最高介质压力下开启时间，使其在脉冲式电控阀门中具有无可伦比的节能优势。
Therefore , it is proved that the control with high - speed on - off valves can realize the servo control function that be carried out with analog control whose control flowrate is proportional to is value . secondly , the paper builds up the mathematics model of the normal pneumatic servo system based on the symmetry structure , and the main characteristic parameters are analyzed and then introduce the theories to increase 论文基于易于进行分析的对称结构的高速开关阀阀控气缸,建立了气压伺服系统动力机构的数学模型,分析了其主要性能参数,提出了提高纯气动伺服系统阻尼比的方法,并从理论上分析了其实现的可能性。
