The Experts below are selected from a list of 9306 Experts worldwide ranked by ideXlab platform

Xingzhong Li - One of the best experts on this subject based on the ideXlab platform.

  • Characteristic analysis and control for high speed proportional Solenoid Valve
    2013 IEEE 8th Conference on Industrial Electronics and Applications (ICIEA), 2013
    Co-Authors: Qirui Xu, Xingzhong Li
    Abstract:

    Response speed and control current accuracy are two critical factors of high speed proportional Solenoid Valve's precise control on the oil pressure of hydraulic system. As an integrated system, Solenoid Valve including several complex physical system involving electronic, electromagnetic, mechanical and hydraulic system. This paper analyses the current and pressure characteristic curve of the high speed proportional Solenoid Valve by using the multi-physical field coupling modeling- and simulation method. According to the simulation results, the control of dither current can efficiently reduce the hysteresis effect of the Solenoid Valve. And this is verified by the following performance test of Solenoid Valve. By accomplish the precise current closed-loop control and dither control of the Solenoid Valve on circuit, this property can be used to improve Solenoid Valve pressure control accuracy.

Chyuanyow Tseng - One of the best experts on this subject based on the ideXlab platform.

  • detecting Solenoid Valve deterioration in in use electronic diesel fuel injection control systems
    Sensors, 2010
    Co-Authors: Hsunheng Tsai, Chyuanyow Tseng
    Abstract:

    The diesel engine is the main power source for most agricultural vehicles. The control of diesel engine emissions is an important global issue. Fuel injection control systems directly affect fuel efficiency and emissions of diesel engines. Deterioration faults, such as rack deformation, Solenoid Valve failure, and rack-travel sensor malfunction, are possibly in the fuel injection module of electronic diesel control (EDC) systems. Among these faults, Solenoid Valve failure is most likely to occur for in-use diesel engines. According to the previous studies, this failure is a result of the wear of the plunger and sleeve, based on a long period of usage, lubricant degradation, or engine overheating. Due to the difficulty in identifying Solenoid Valve deterioration, this study focuses on developing a sensor identification algorithm that can clearly classify the usability of the Solenoid Valve, without disassembling the fuel pump of an EDC system for in-use agricultural vehicles. A diagnostic algorithm is proposed, including a feedback controller, a parameter identifier, a linear variable differential transformer (LVDT) sensor, and a neural network classifier. Experimental results show that the proposed algorithm can accurately identify the usability of Solenoid Valves.

  • characterisation of Solenoid Valve failure for electronic diesel fuel injection system of commercial trucks
    International Journal of Heavy Vehicle Systems, 2006
    Co-Authors: Chyuanyow Tseng, Chiufeng Lin
    Abstract:

    The fuel injection control system significantly affects the fuel efficiency and emissions from the diesel engine of a commercial truck. For electronic diesel fuel injection control (EDC) systems, e.g., Bosh PE-EDC, possible faults include rack deformation, Solenoid Valve failure, and rack-travel sensor malfunction. Among these problems, Solenoid Valve failure is most likely to occur in in-use diesel engines. Since the Solenoid Valve is mounted inside the diesel fuel pump, it is hard to access for diagnosis. Therefore, this paper is intended to study the characteristics of the failure, and then study the possibility of developing a method for its diagnosis. A method was developed using feed-forward and feedback control algorithms. Through the studies of this paper, it is found that the Solenoid failure is caused by the wear between its plunger and sleeve, and the symptom is the variation of Coulomb frictional force. A series of experiments were carried out to show and characterise the symptoms. The proposed method is also validated through these experiments.

Qirui Xu - One of the best experts on this subject based on the ideXlab platform.

  • Characteristic analysis and control for high speed proportional Solenoid Valve
    2013 IEEE 8th Conference on Industrial Electronics and Applications (ICIEA), 2013
    Co-Authors: Qirui Xu, Xingzhong Li
    Abstract:

    Response speed and control current accuracy are two critical factors of high speed proportional Solenoid Valve's precise control on the oil pressure of hydraulic system. As an integrated system, Solenoid Valve including several complex physical system involving electronic, electromagnetic, mechanical and hydraulic system. This paper analyses the current and pressure characteristic curve of the high speed proportional Solenoid Valve by using the multi-physical field coupling modeling- and simulation method. According to the simulation results, the control of dither current can efficiently reduce the hysteresis effect of the Solenoid Valve. And this is verified by the following performance test of Solenoid Valve. By accomplish the precise current closed-loop control and dither control of the Solenoid Valve on circuit, this property can be used to improve Solenoid Valve pressure control accuracy.

Yang Jiang - One of the best experts on this subject based on the ideXlab platform.

  • Adaptive Fuzzy PID Designed for Solenoid Valve Test System
    Applied Mechanics and Materials, 2009
    Co-Authors: Bei Tao Guo, Hong Yi Liu, Yang Jiang, Fei Wang, Zhong Luo
    Abstract:

    The performance of Solenoid Valve is directly related to the security and reliability of industrial system. This paper presents the design of the automatic test platform for Solenoid Valve. The architecture of the hydraulic subsystem and the control model of providing precise pressure for testing Solenoid Valve were built up. A self-adaptive fuzzy PID controller, which can dynamically modify the controller’s parameters by using fuzzy rules presented in this paper, was designed with considering the dynamic characteristics of hydraulic system. Simulation results show that the self-adaptive fuzzy PID controller, which compared with conventional PID controller, can obtain better dynamic performance and fast response.

  • Research on Intelligent Test System for Solenoid Valve
    International Journal of Intelligent Engineering and Systems, 2009
    Co-Authors: Yang Jiang, Hong Yi Liu, Zhong Luo, Xi Chen
    Abstract:

    The Solenoid Valve is a key control element of hydraulic system which plays a decisive role in the reliability and the level of automation of the equipment. An intelligentized, comprehensive and high efficient test system of Solenoid Valve is designed in this paper. The mathematical model of the test system is built after ignoring the unimportant factors, and the visual modeling is built with the AMESim software. Fuzzy turning PID controller which changes the three parameters of PID controller by the error and error's varieties of systems is used to control the system pressure; the performance of system is obtained by simulating with combining MATLAB/Simulink and AMESim. 5Bar, 15Bar and 25Bar are given as the target value, and the best controlling strategy after the analysis and comparison is got to improve the test efficiency and test results of Solenoid Valve.

  • PACIIA (2) - The Test of Solenoid Valve Seal Performance Based on Fuzzy Control
    2008 IEEE Pacific-Asia Workshop on Computational Intelligence and Industrial Application, 2008
    Co-Authors: Bei Tao Guo, Hong Yi Liu, Yang Jiang, Zhong Lou, Fei Wang
    Abstract:

    As an important indicator of the accuracy of Solenoid Valve - Solenoid Valve seal performance directly influences the quality and precision of Valve. In this paper, software and hardware platform of the test of Solenoid Valve seal performance are introduced, seal performance test method is discussed. Fuzzy control algorithm is studied in controlling the VVVF, and fuzzy control is applied in hydraulic pressure control of test. So the problem of supplying constant pressure requested by the test can be resolved. Finally, feasibility and effectiveness of test method are verified by experiment.

  • Research on Key Problem of Intelligent Test System for Solenoid Valve
    2008 First International Conference on Intelligent Networks and Intelligent Systems, 2008
    Co-Authors: Yang Jiang, Hong Yi Liu, Zhong Luo, Xi Chen
    Abstract:

    An intelligentized, comprehensive and high efficiency test system of Solenoid Valve for oil medium is designed in this paper, aiming to the disadvantage of current test devices in most Solenoid Valve factories in China. Serial communication of OPC-SERVER, sequential control of PLC, frequency conversion speed regulation technology and data acquisitions by LabVIEW are all achieved in this system; modeling and simulation on the whole system are built by AMESim and Matlab; fuzzy PID controller is designed on the pressure of system, so intelligent optimization control on system is realized. The old manual test method will be replaced by this system with high precision, automatic test process achieved. Test efficiency of Solenoid Valve will be improved, and the reliability of test results will be guaranteed.

Xi Chen - One of the best experts on this subject based on the ideXlab platform.

  • Research on Intelligent Test System for Solenoid Valve
    International Journal of Intelligent Engineering and Systems, 2009
    Co-Authors: Yang Jiang, Hong Yi Liu, Zhong Luo, Xi Chen
    Abstract:

    The Solenoid Valve is a key control element of hydraulic system which plays a decisive role in the reliability and the level of automation of the equipment. An intelligentized, comprehensive and high efficient test system of Solenoid Valve is designed in this paper. The mathematical model of the test system is built after ignoring the unimportant factors, and the visual modeling is built with the AMESim software. Fuzzy turning PID controller which changes the three parameters of PID controller by the error and error's varieties of systems is used to control the system pressure; the performance of system is obtained by simulating with combining MATLAB/Simulink and AMESim. 5Bar, 15Bar and 25Bar are given as the target value, and the best controlling strategy after the analysis and comparison is got to improve the test efficiency and test results of Solenoid Valve.

  • Research on Key Problem of Intelligent Test System for Solenoid Valve
    2008 First International Conference on Intelligent Networks and Intelligent Systems, 2008
    Co-Authors: Yang Jiang, Hong Yi Liu, Zhong Luo, Xi Chen
    Abstract:

    An intelligentized, comprehensive and high efficiency test system of Solenoid Valve for oil medium is designed in this paper, aiming to the disadvantage of current test devices in most Solenoid Valve factories in China. Serial communication of OPC-SERVER, sequential control of PLC, frequency conversion speed regulation technology and data acquisitions by LabVIEW are all achieved in this system; modeling and simulation on the whole system are built by AMESim and Matlab; fuzzy PID controller is designed on the pressure of system, so intelligent optimization control on system is realized. The old manual test method will be replaced by this system with high precision, automatic test process achieved. Test efficiency of Solenoid Valve will be improved, and the reliability of test results will be guaranteed.