Design and Test of a Tractor Electro-Hydraulic-Suspension Tillage-Depth and Loading-Control System Test Bench
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Published:2023-09-27
Issue:10
Volume:13
Page:1884
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ISSN:2077-0472
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Container-title:Agriculture
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language:en
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Short-container-title:Agriculture
Author:
Sun Xiaoxu1ORCID, Song Yue1, Wang Yunfei1, Qian Jin1, Lu Zhixiong1ORCID, Wang Tao2
Affiliation:
1. College of Engineering, Nanjing Agricultural University, Nanjing 210031, China 2. College of Emergency Management, Nanjing Tech University, Nanjing 210009, China
Abstract
Electro-hydraulic suspension systems are one of the key working systems of tractors. Due to the complex and changeable working conditions in the field, it is of great significance to shorten the development cycle of the control strategy and reduce the development cost by using the indoor bench for test verification at the beginning of the study. Based on this, this paper has proposed a complete set of tractor hydraulic-suspension tillage-depth and loading-control test-bench designs. The system was mainly composed of three parts: an industrial computer, a suspension electro-hydraulic control system, and a loading electro-hydraulic control and data-acquisition system. The human–computer interaction interface of the test-bench measurement and control system was built, and the loading-force control system and suspension tillage-depth and loading integrated-control system were built based on PID and fuzzy PID control algorithms, respectively. The system can realize the control of suspension tillage depth and loading during the operation process and has the functions of the real-time acquisition, display, and data storage of related sensor signals during the working process. The test results showed that the response time of the loading-control system was less than 1.2 s, and the maximum steady-state error was less than 0.8%. The response time of the suspension control system was less than 2.3 s, and the maximum steady-state error was less than 1%. The system has good responsiveness and stability. These research results can provide platform and method of support for the development and test of tractor electro-hydraulic suspension systems.
Funder
The National Key Research and Development Plan of China Postgraduate Research and Practice Innovation Program of Jiangsu Province, China
Subject
Plant Science,Agronomy and Crop Science,Food Science
Reference22 articles.
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