Robust Pitching Disturbance Force Attenuation for Tractor Considering Functional Constraints

Anche, Gurudatta M.; Devika, K. B.; Subramanian, Shankar C.

doi:10.1109/access.2020.2992899

Cited by 3 publications

(2 citation statements)

References 35 publications

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“…With the development of measurement and control technology, an indoor simulation test system was built to simulate the tractor operation, which provides a new means for the experimental study of tractor suspension systems [4][5][6][7]. Compared with complex and changeable field operation conditions, in the initial research stage, it is of great significance and function to shorten the development cycle of the tractor suspension tillage-depth control strategy and reduce the development cost by using the bench to verify and debug the suspension system [8,9].…”

Section: Introductionmentioning

confidence: 99%

Design and Test of a Tractor Electro-Hydraulic-Suspension Tillage-Depth and Loading-Control System Test Bench

Sun,

Song,

Wang

et al. 2023

Agriculture

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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.

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Section: Introductionmentioning

confidence: 99%

Design and Test of a Tractor Electro-Hydraulic-Suspension Tillage-Depth and Loading-Control System Test Bench

Sun,

Song,

Wang

et al. 2023

Agriculture

View full text Add to dashboard Cite

show abstract

“…An adaptive SMC scheme was designed to eliminate the thruster faults and external disturbances for a spacecraft by Liu et al [31]. Anche et al developed a hitch control system to attenuate the disturbance forces in tractors [32]. In order to overcome the inherent limitation of chattering in SMC (high-frequency control signal switching), a reaching law based SMC design has been employed for FTC design [33].…”

Section: Introductionmentioning

confidence: 99%

Brake Fault Identification and Fault-Tolerant Directional Stability Control of Heavy Road Vehicles

2020

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Accurate fault diagnosis in air brake is crucial to reduce frequent brake inspection and maintenance in heavy commercial road vehicles. Existing model-based fault diagnostic schemes work well under limited vehicle operating conditions, which is insufficient for developing an on-board monitoring device. In this context, a learning-based fault identification scheme using the Random Forest technique, which accommodates the vehicle's wide operating conditions, is proposed. This scheme identifies the brake's fault levels with a better classification accuracy of 92% compared to techniques such as Naïve Bayes, k-Nearest Neighbors, Support Vector Machine, and Decision Tree. Further, a fault-tolerant controller is proposed to overcome the vehicle's directional instability arising due to the brake fault. Two sliding mode controllers, namely differential brake control and steering angle control, were developed to control the yaw angle. These have been implemented in a Hardware in Loop experimental platform with the vehicle dynamic simulation software TruckMaker ® .

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Development Status and Research Progress of a Tractor Electro-Hydraulic Hitch System

Sun

Song

et al. 2022

Agriculture

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A tractor electro-hydraulic hitch system is considered one of the most important systems that play a strategic role in the power transmission and operation depth control of a tractor’s field operation. Its performance directly affects the operation quality of the whole work unit of the tractor. Furthermore, a tractor electro-hydraulic hitch system has gained the interest of many in the agricultural machinery sector because of its stable performance, high production efficiency, good operation quality and its low energy consumption. To fully benefit from the potential of the tractor electro-hydraulic hitch system, it is significant to understand and address the problems and challenges associated with it. This study, therefore, aims to contribute to the development of the tractor electro-hydraulic hitch system by investigating the research methods, technical characteristics and emerging trends in three key aspects that include the tillage depth adjustment method, the tillage depth control algorithm and the core components of the electro-hydraulic hitch system. The characteristics and applicable conditions of the different tillage depth adjustment methods of the electro-hydraulic hitch system were summarized. The realization methods and the control characteristics of the different algorithms were elaborated and discussed for both the PID control algorithm and the intelligent control algorithm. The working characteristics of the core components of the electro-hydraulic hitch system were analyzed based on the hydraulic control valves and sensing elements. The results have shown that the multi-parameter tillage depth adjustment method met the operation quality standard while taking the engine load stability and traction efficiency into account, and it has a greater research significance and value. The working quality can be improved effectively by introducing the intelligent algorithm. In addition, the study of smart valves with built-in sensing elements and how to improve the anti-interference ability of sensing elements, are the aspects that requires further consideration. Aiming to improve the working quality and reduce energy consumption, further research into the tractor electro-hydraulic hitch system is necessary. The results of this comprehensive review provide a reference for the intelligent operation of tractors under the precision agriculture.

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Robust Pitching Disturbance Force Attenuation for Tractor Considering Functional Constraints

Cited by 3 publications

References 35 publications

Design and Test of a Tractor Electro-Hydraulic-Suspension Tillage-Depth and Loading-Control System Test Bench

Design and Test of a Tractor Electro-Hydraulic-Suspension Tillage-Depth and Loading-Control System Test Bench

Brake Fault Identification and Fault-Tolerant Directional Stability Control of Heavy Road Vehicles

Development Status and Research Progress of a Tractor Electro-Hydraulic Hitch System

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