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申请号:201811269339.6 公开号:CN111102257A 主分类号:F15B11/22
摘要:【中文】本发明公开了一种液压缸同步控制方法及用于控制多液压缸同步动作的系统,包括:根据已确定的基准液压缸以及基准液压缸对应的同步基准速度相对于每个液压缸的最大移动速率的实际速度比率,利用预设的输入输出映射网络模型,由实时获取到的指令输入信号得到针对每个液压缸并满足线性控制条件的实际驱动信号;向每个比例阀输出相应的实际驱动信号,以通过比例阀来控制对应液压缸的移动速度,从而补偿每个液压缸的实际移动速度差带来的不同步位移。本发明省去了复杂的PID调试环节,解决了闭环控制在特定情况下会造成液压缸不同步现象的缺陷,运算方法简单,尤其适用于较低性能的控制器,经济实用。 【EN】The invention discloses a synchronous control method of hydraulic cylinders and a system for controlling synchronous actions of multiple hydraulic cylinders, wherein the method comprises the following steps: according to the determined reference hydraulic cylinders and the actual speed ratio of the synchronous reference speed corresponding to the reference hydraulic cylinders relative to the maximum moving speed of each hydraulic cylinder, obtaining actual driving signals which are specific to each hydraulic cylinder and meet linear control conditions by using a preset input-output mapping network model through command input signals acquired in real time; and outputting corresponding actual driving signals to each proportional valve to control the moving speed of the corresponding hydraulic cylinder through the proportional valve, so that different displacement steps caused by the difference of the actual moving speed of each hydraulic cylinder are compensated. The method saves a complicated PID (proportion integration differentiation) debugging link, overcomes the defect that the closed-loop control can cause the asynchronous phenomenon of the hydraulic cylinder under a specific condition, has simple operation method, is particularly suitable for a controller with lower performance, and is economical and practical.
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申请号:201811257128.0 公开号:CN111103538A 主分类号:G01R31/34
摘要:【中文】本发明公开了一种三相异步交流电机绕组温升自动测试系统,包括,第一、第二开关,其分别用于连接或分断被试电机与变频电源之间、陪试电机与变频电源之间的电路;电压电流传感器,用于监测被试电机和陪试电机的电压电流数据;感温单元,用于测量被试电机表面温度及冷却介质温度;扭矩仪,用于测量被试电机和陪试电机的转速;直流电阻测量仪,其通过真空接触器与被试电机相连,用于测量被试电机绕组的电阻值;控制单元,用于接收电压电流传感器、感温单元、扭矩仪及直流电阻测量仪的测量数据,控制第一开关、第二开关、真空接触器和变频电源工作,以自动进行电机绕组温升测试。其可提高测试结果的准确性,最大限度的保证试验人员的人身安全。 【EN】The invention discloses an automatic test system for the winding temperature rise of a three-phase asynchronous alternating current motor, which comprises a first switch and a second switch, wherein the first switch and the second switch are respectively used for connecting or disconnecting a circuit between a tested motor and a variable frequency power supply and a circuit between an accompanying motor and the variable frequency power supply; the voltage and current sensor is used for monitoring voltage and current data of the tested motor and the accompanying motor; the temperature sensing unit is used for measuring the surface temperature of the tested motor and the temperature of the cooling medium; the torque meter is used for measuring the rotating speed of the tested motor and the accompanying motor; the direct-current resistance measuring instrument is connected with the tested motor through the vacuum contactor and is used for measuring the resistance value of the winding of the tested motor; and the control unit is used for receiving the measurement data of the voltage and current sensor, the temperature sensing unit, the torquemeter and the direct-current resistance measuring instrument and controlling the first switch, the second switch, the vacuum contactor and the variable frequency power supply to work so as to automatically carry out temperature rise test of the motor winding. The method can improve the accuracy of the test result and ensure the personal safety of the tester to the maximum extent.
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申请号:201811264888.4 公开号:CN111103863A 主分类号:G05B23/02
摘要:【中文】本发明公开了一种轨道交通车辆智能检修机器人、检修系统及方法,包括里程定位装置、触发定位装置、驱动装置、故障检修装置和主控制器,主控制器用于根据里程定位装置和触发定位装置所获取的数据信息来控制驱动装置制动停车,并在驱动装置制动停车后,根据轨道交通车辆的底部关键部件的空间参数数据来控制故障检修装置对所述轨道交通车辆的底部关键部件进行故障采集和检修。本发明实现了对轨道交通车辆底部关键部件的故障自主检测和维修,达到了减轻轨道交通车辆运营单位人工检修工作力度的目的,提高了检修效率的同时保证了检修质量的稳定性。 【EN】The invention discloses an intelligent maintenance robot, an intelligent maintenance system and an intelligent maintenance method for a rail transit vehicle. The invention realizes the fault autonomous detection and maintenance of key components at the bottom of the rail transit vehicle, achieves the aim of reducing the manual maintenance work intensity of the rail transit vehicle operation unit, improves the maintenance efficiency and ensures the stability of the maintenance quality.
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