Development and performance evaluation of an electric-hydraulic control system for subsoiler with flexible tines

Jing, Huirong; Zhang, Dongxing; Cui, Tao; Zhong, X.P.; Li, Yang

doi:10.1016/j.compag.2018.06.027

Cited by 19 publications

(6 citation statements)

References 20 publications

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“…However, due to the substantial variation in soil resistance, tilling often results in depths that are considerably lower than the desired target value. To address this issue, researchers developed an electric-hydraulic system for a subsoiler [51]. Additionally, they introduced a novel method for detecting the tillage depth to overcome this challenge.…”

Section: Operation State Perception Methods Advantages Disadvantagesmentioning

confidence: 99%

Applications of Autonomous Navigation Technologies for Unmanned Agricultural Tractors: A Review

Qu,

Zhang,

Qin

et al. 2024

Machines

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The development of unmanned agricultural tractors (UAT) represents a significant step towards intelligent agricultural equipment. UAT technology is expected to lighten the workload of laborers and enhance the accuracy and efficiency of mechanized operations. Through the investigation of 123 relevant studies in the literature published in recent years, this article reviews three aspects of autonomous navigation technologies for UATs: perception, path planning and tracking, and motion control. The advantages and deficiencies of these technologies in the context of UATs are clarified by analyzing technical principles and the status of current research. We conduct summaries and analyses of existing unmanned navigation solutions for different application scenarios in order to identify current bottleneck issues. Based on the analysis of the applicability of autonomous navigation technologies in UATs, it can be seen that fruitful research progress has been achieved. The review also summarizes the common problems seen in current UAT technologies. The application of research to the sharing and integrating of multi-source data for autonomous navigation has so far been relatively weak. There is an urgent need for high-precision and high-stability sensing equipment. The universality of path planning methods and the efficiency and precision of path tracking need to be improved, and it is also necessary to develop highly reliable electrical control modules to enhance motion control performance. Overall, advanced sensors, high-performance intelligent algorithms, and reliable electrical control hardware are key factors in promoting the development of UAT technology.

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Section: Operation State Perception Methods Advantages Disadvantagesmentioning

confidence: 99%

Applications of Autonomous Navigation Technologies for Unmanned Agricultural Tractors: A Review

Qu,

Zhang,

Qin

et al. 2024

Machines

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“…The principle of this system is similar to that of hydraulic transmission. However, the core control system will have more feedback devices, and the actual situation can be fed back to the computer while the hydraulic pump and its motor are cutting [ 17 ]. Principal parameters include actuator output, such as the displacement, speed, and pressure of the tire or leather.…”

Section: Related Workmentioning

confidence: 99%

Automatic fault detection of sensors in leather cutting control system under GWO-SVM algorithm

Luo

Jiao

2021

PLoS ONE

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The purposes are to meet the individual needs of leather production, improve the efficiency of leather cutting, and increase the product’s competitiveness. According to the existing problems in current leather cutting systems, a Fault Diagnosis (FD) method combining Convolutional Neural Network (CNN) and the Support Vector Machine (SVM) of Gray Wolf Optimizer (GWO) is proposed. This method first converts the original signal into a scale spectrogram and then selects the pre-trained CNN model, AlexNet, to extract the signal scale spectrogram’s features. Next, the Principal Component Analysis (PCA) reduces the obtained feature’s dimensionality. Finally, the normalized data are input into GWO’s SVM classifier to diagnose the bearing’s faults. Results demonstrate that the proposed model has higher cutting accuracy than the latest fault detection models. After model optimization, when c is 25 and g is 0.2, the model accuracy can reach 99.24%, an increase of 66.96% compared with traditional fault detection models. The research results can provide ideas and practical references for improving leather cutting enterprises’ process flow.

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“…Algorithms including adaptive fuzzy PID control, robust control, and composite control have progressively been applied to hydraulic control systems since the 20th century as a result of the advancement of electronic components and artificial intelligence. Hydraulic control technology has become the basic technical composition of modern mechanical equipment and devices, the basic technical element of modern control engineering, and an important means of industrial and national defense automation, and the degree of application of hydraulic control technology has become an important symbol to measure the level of industrialization of a country [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Review of the Progress of Energy Saving of Hydraulic Control Systems

Li,

Zhang,

Feng

et al. 2023

Processes

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In many different industrial domains, hydraulic control systems are extensively utilized. This paper examines the current state of research and the trajectory of energy-efficient hydraulic control system development. Initially, a quick introduction to the control principles of hydraulic control systems is given. Secondly, hydraulic control systems are classified, the factors affecting the energy consumption of hydraulic control systems are analyzed, and the method of reducing its influence on hydraulic control systems is given. Subsequently, research concerning energy conservation is compiled based on the classification of hydraulic control systems. In this paper, the circuit structure of two control modes of a hydraulic control system (valve control system and pump control system) and their related control algorithms (fuzzy PID control, adaptive robust control) for reducing system energy consumption are studied. In summary, the evolution of energy-efficient hydraulic control system approaches is forecasted and projected, offering some pointers for advancing hydraulic control system study and implementation in the industrial future.

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Development and performance evaluation of an electric-hydraulic control system for subsoiler with flexible tines

Cited by 19 publications

References 20 publications

Applications of Autonomous Navigation Technologies for Unmanned Agricultural Tractors: A Review

Applications of Autonomous Navigation Technologies for Unmanned Agricultural Tractors: A Review

Automatic fault detection of sensors in leather cutting control system under GWO-SVM algorithm

Review of the Progress of Energy Saving of Hydraulic Control Systems

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