Electro-hydraulic velocity and position control based on independent metering valve control in mobile construction equipment

Činkelj, 2010, Closed-loop control of hydraulic telescopic handler, Autom. Constr., 19, 954, 10.1016/j.autcon.2010.07.012 Minav, 2013, Analysis of electro-hydraulic lifting system's energy efficiency with direct electric drive pump control, Autom. Constr., 30, 144, 10.1016/j.autcon.2012.11.009 Wang, 2013, Boom lifting control scheme of large mining hydraulic excavator, Chin. J. Mech. Eng., 49, 161, 10.3901/JME.2013.12.161 Eriksson, 2011, Individual metering fluid power systems: challenges and opportunities, Proc. Inst. Mech. Eng. I J. Syst. Control Eng., 225, 196 Shenouda, 2006 Eriksson, 2007 Eriksson Nielsen Ge, 2017, Efficiency improvement and evaluation of electric hydraulic excavator with speed and displacement variable pump, Energy Convers. Manag., 150, 62, 10.1016/j.enconman.2017.08.010 B. Andersson, Hydraulic valve means [P]. US Patent: 4662601. 1987-05-05. Shenouda, 2005 Choi, 2015, Energy-saving in excavators with application of independent metering valve, J. Mech. Sci. Technol., 29, 387, 10.1007/s12206-014-1245-5 Yao, 2002, Energy-saving control of hydraulic systems with novel programmable valves, 3219 Liu, 2007, Coordinate control of energy saving programmable valves, IEEE Trans. Control Syst. Technol., 16, 34, 10.1109/TCST.2007.903073 L. Quan, K.W. Feng, Q. Chen, Independent control electro-hydraulic system of oil inlet and outlet with pump valve composite flux matched: China, CN 200710062517.3[P]. 2008-01-23. Liu, 2016, Research on the performance of hydraulic excavator boom based pressure and flow accordance control with independent metering circuit, Proc. Inst. Mech. Eng. E J. Proc. Mech. Eng., 901 Xu, 2015, Experiment research on individual metering systems of mobile machineries based on coordinate control of pump and valves, J. Zhejiang Univ. (Eng. Sci.), 49, 93 Liu, 2010, Strategy for flow and pressure control of electro hydraulic proportional separate meter in and separate meter out control system, Trans. Chin. Soc. Agric. Machinery, 41, 182 Meyer, 2011, 351 Sitte, 2013, 261 Lübbert, 2016, Load-force-adaptive outlet throttling: an easily commissionable independent metering control strategy, 1 Lübbert, 2016, 231 Lu, 2014, Energy-saving adaptive robust control of a hydraulic manipulator using five cartridge valves with an accumulator, IEEE Trans. Ind. Electron., 61, 7046, 10.1109/TIE.2014.2314054 Ned, 2011, 1 Lee, 2016, Development of the independent metering valve control system and analysis of its performance for an excavator, 1 Dong, 2016, Research on the performance of hydraulic excavator with pump and valve combined separate meter in and meter out circuits, Chin. J. Mech. Eng., 52, 173, 10.3901/JME.2016.12.173 Huang, 2016, Excavator swing system controlled with separate meter-in and meter-out method, Chin. J. Mech. Eng., 52, 159, 10.3901/JME.2016.20.159 Xu, 2015, Pump/valves coordinate control of the independent metering system for mobile machinery, Autom. Constr., 57, 98, 10.1016/j.autcon.2015.04.012 Ding, 2016, Bumpless mode switch of independent metering fluid power system for mobile machinery, Autom. Constr., 68, 52, 10.1016/j.autcon.2016.04.006 Zhao, 2012 Chae, 2011, A 3D surface modeling system for intelligent excavation system, Autom. Constr., 20, 808, 10.1016/j.autcon.2011.02.003 Seo, 2011, Task planner design for an automated excavation system, Autom. Constr., 20, 954, 10.1016/j.autcon.2011.03.013 Seron, 2014, Automation of the arm-aided climbing maneuver for tracked mobile manipulators, IEEE Trans. Ind. Electron., 61, 3638, 10.1109/TIE.2013.2272275 Li, 2003, Static property analysis of electrohydraulic single rod cylinder servo systems, Chin. J. Mech. Eng., 39, 18, 10.3901/JME.2003.06.018