The feedbacks of position , velocity , acceleration and dynamic pressure were applied to adjust the model , so the control system of single jar electrodraulic servo mechanism was built . to reduce the system error and interference error , the compound control was designed . the results of simulations showed that the magnitude attenuation and phase lag of the system come to the project demand 引入包括位置反馈、速度反馈、加速度反馈和动压反馈在内的反馈控制技术对电液伺服驱动机构模型进行综合校正,从而建立单缸电液伺服控制系统,并在分析系统误差和扰动误差后,加入复合控制减小系统误差和抑制干扰,仿真结果表明复合控制系统的控制品质有了明显改善,能够满足工程需求。
Introduces the structure of the multi - actuators control system based on pressure decrease sensing . then a multi - actuators control system model is developed for the constant pump discharge pressure hydraulic system . also the factors that affect the static accuracy of actuators " speed and flow rate and the dynamic characteristic are analyzed in this chapter 第二章简单叙述了基于压差传感的计算流量反馈流量控制原理及其实现；介绍了基于压差传感的多执行器复合控制系统的构成；之后主要针对定压系统多执行器复合控制建立了数学模型，并分析了影响执行器速度及流量稳态控制精度和动态特性的一些因素。
Aiming at the essential defect of pneumatic medium , pneumatic hydraulic combination control ( phcc ) servo system is formed , in which the liquid medium with low compressibility and high viscosity is introduced into a normal pneumatic servo system and is closed - looped controlled simultaneously 气液联控伺服系统正是基于克服或者补偿气体介质的根本缺点,将可压缩性小、粘度较大的液体介质引入到常规气压伺服系统中,并进行控制而构成的一种新型的气、液介质复合控制系统。
