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Research and Implementation of Excavator Electric Control System

Author: ZhaoWenHua
Tutor: WangHongJun；ChenYong
School: Shandong University
Course: Electronics and Communication Engineering
Keywords: Hydraulic excavators Power matching S3C2410 Linux
CLC: TU621
Type: Master's thesis
Year: 2010
Downloads: 242
Quote: 2
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Abstract


Hydraulic excavators is widely used in industrial and civil construction, transportation, water power engineering industry occupies an important position in the national economy. But the huge excavators energy consumption, and therefore its energy research has a very important significance. Energy conservation is an important direction of the world's industrial development, as the earthwork excavation equipment, hydraulic excavators do not use only 50-70% of the efficiency of the energy-saving measures, with China's accession to the WTO, in order to enhance domestic hydraulic excavators and foreign products ability to compete, it must improve the level of the domestic hydraulic excavators electronic energy-saving control system, the trend of the development of the world. Excavator diesel engine, variable pump, valve and load as a dynamic system, with the concept of the system on a comprehensive energy-saving potential of the mining hydraulic excavators. The first expounded Research in excavator energy efficiency at home and abroad, and for the entire kinetic chain excavator, excavator energy loss, reduce power matching unreasonable losses caused as a priority. Expounded effective pressure signal processing method, the effective pressure signal after the utilization process is how to implement the the excavator power chain power matching, is mainly to achieve the power matching of the engine and hydraulic pump and the hydraulic system and the load of the power matching. And discusses how the pressure signal processing to achieve other auxiliary control functions. Based on the theoretical analysis, excavator how to achieve a load adaptive control system. Using S3C2410 core control system using the touch screen as an input device for easy manipulation. Detailed study of concrete from the hardware and software aspects of the design of the control system. Hardware functional modules embedded computer program to facilitate the expansion and upgrade of the control software maintenance. The hardware sub-module of each sub-circuit realization, as the implementation of parts of the throttle actuator stepper motor, control precision, convenience; software uses a top-down design approach, as the basis of the control software, the first description of the development The establishment of the environment, including the installation of development tools and Linux systems transplantation, then study the design of the control software, and finally discusses the development of the graphical interface. The control system can better match the power of the excavator power chain, reduce system heat and improve equipment reliability, reduce fuel consumption, to achieve the purpose of energy efficient.

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