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Research on Energy-saving Control of Working and Running System of Hydraulic Excavator

Author: ShangTao
Tutor: ZhaoDingXuan
School: Jilin University
Course: Mechanical and Electronic Engineering
Keywords: Hydraulic excavators Energy-saving control Coordinated control of power matching The walk straight synchronization control fuzzy PID control Single neuron PID control
CLC: TU621
Type: PhD thesis
Year: 2005
Downloads: 1540
Quote: 26
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Abstract


Paper combines cross-century talents special fund of the Ministry of Machine -funded project ( 96250404 ) improve the electronic energy-saving control system of hydraulic excavators and the backbone of the Ministry of Education teachers Fund \research \The hydraulic excavators power matching control system , based on the working pressure of the pump is based on , and automatically selects the operating conditions can be realized through the calculation of the microcomputer , set the speed of the engine when the excavator operations , realization of the engine speed sensing control system - pump link power matching ; engine , variable pump , valve and load multiple as a whole , using coordinated control strategy , the engine - pump and pump - load link power coordination , and improve the system power utilization , reduce system the energy loss ; designed a the excavator straight line travel motor synchronization control loop . Established a mathematical model of the system , the power operating characteristics of the input and output of the open-loop system , a variable pump - quantitative motor open loop characteristics , the pump constant power control on the importance of energy saving . The papers draw on state-of-the-art smart system theory , the new excavator energy control adjustment method , and the development of intelligent energy-saving controller . Energy-saving control test test test stand for energy-saving control system in hydraulic excavators , diesel engine fuel consumption measurements show that the average energy saving effect of energy-saving control system for single neuron PID 8.5 % , coordinated control of the energy-saving effect . The test results proved reliable energy-saving control system designed in this paper , the use of intelligent energy-saving control theory is correct , energy-saving effect is remarkable . The results of the thesis of important reference value to the development of energy - saving control system of today 's domestic excavator has important theoretical significance and practical value .

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CLC: > Industrial Technology > Building Science > Construction machinery and equipment > Earthwork machinery, mining machinery > Excavator
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