Development of Electrohydraulic Steering Control System for Tractor Automatic Navigation

Yin, Chenbo; Sun, Qun; Wu, Jian; Liu, Chengqiang; Gao, Jie

doi:10.1155/2018/5617253

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…For the convenience of study, this paper simplifies the front wheel and steering gear to steering shaft [17]. We focus on the situation that the relevent forces are equivalent to the steering axis.…”

Section: Eps Steering Systemmentioning

confidence: 99%

EPS Current Tracking Method Research Based on Hybrid Sensitivity H∞ Control Algorithm

Hai-rong

et al. 2018

Journal of Electrical and Computer Engineering

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For electric power steering system (EPS), road interference, noise of the sensor, and the uncertainty of the steering system may make EPS control effect and the driver's road sense worse. EPS system which takes advantage of good current tracking ability, good anti-interference ability, and good operation stability is becoming more and more important in automotive research. The traditional H ∞ control algorithm can solve the system uncertainty theoretically, but it cannot solve the contradiction between robustness and performance without considering the performance of the system. Therefore, this paper proposes a EPS current tracking method based on the hybrid sensitivity H ∞ control algorithm, which takes the current tracking performance as one of the control objectives, so that the system can maximize the robustness and performance. Firstly, the dynamic model of EPS is established. Then, the twodegree-of-freedom vehicle model and tire model are introduced. The state space equation of the system is constructed on the basis of the system state space with random disturbance signals, the hybrid sensitivity H ∞ controller is designed in the sensitivity index design, and the proposed algorithm can use weighting function to minimize the performance of the current tracking error as well as the robustness of the yaw rate error in response to robustness. Simulation analysis and experimental verification of EPS system are also carried out. The results show that the control method of the hybrid sensitivity H ∞ can better achieve EPS target current tracking, effectively suppress the effect of external interference and noise, improve the system performance and robustness, ensure the driver get good road sense, and improve the system of steering stability.

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Section: Eps Steering Systemmentioning

confidence: 99%

EPS Current Tracking Method Research Based on Hybrid Sensitivity H∞ Control Algorithm

Hai-rong

et al. 2018

Journal of Electrical and Computer Engineering

Self Cite

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“…The tractor is a vehicle widely used in several tasks. The technological development has also contributed to numerous advances in this type of agricultural vehicle [24], such as, for example, improvements in steering systems [25], the development of hybrid tractors [26], the use of algorithms and simulation to improve the suspension systems [27], or the use of a sensor to control the wear of some elements [28].…”

Section: Introductionmentioning

confidence: 99%

Solving Power Balance Problems in Single-Traction Tractors Using PTractor Plus 1.1, a Possible Learning Aid for Students of Agricultural Engineering

et al. 2018

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Tractors are used to perform jobs that require different types of agricultural tools to be attached to their rear, to their front, or both. These tools may need to be dragged, towed, or suspended above ground, and sometimes require a power supply; this is usually obtained via a hydraulic system or from the tractor's power takeoff system. When tractors have to work with such tools on different types of soils and on different slopes, the need arises to calculate the power the tractor engine will have to produce. In the classroom, this is normally calculated manually with the help of a calculator. This work, however, describes a computer program (written in Delphi and operating under Windows) that rapidly solves the most common types of power balance problems associated with single-traction tractors. The value of this software as a learning aid for students of agricultural engineering is discussed.

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Development of Electrohydraulic Steering Control System for Tractor Automatic Navigation

Cited by 2 publications

References 23 publications

EPS Current Tracking Method Research Based on Hybrid Sensitivity H∞ Control Algorithm

EPS Current Tracking Method Research Based on Hybrid Sensitivity H∞ Control Algorithm

Solving Power Balance Problems in Single-Traction Tractors Using PTractor Plus 1.1, a Possible Learning Aid for Students of Agricultural Engineering

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