Pressure Control Algorithm Based on Adaptive Fuzzy PID with Compensation Correction for the Tractor Electronic Hydraulic Hitch

Applied Sciences

Zhongxiang Zhu¹  Jinheng Gu¹  Enrong Mao¹  Changqing Liu¹  Yuefeng Du¹  Zhen Li¹  Jianjun Zhao² 

[1] College of Engineering, China Agricultural University, Beijing 100083, China;Sinopec Research Institute of Petroleum Engineering, Beijing 100101, China;

关键词: tractor;    electronic hydraulic hitch;    pressure control;    field experiment;   

DOI  :  10.3390/app10093179

来源: DOAJ

【 摘 要 】

: In order to realize the pressure control of the tractor electronic hydraulic hitch in the fields, the pressure control algorithm is essential. In this study, combining the kinematics model with the dynamic model of ploughing and the hydraulic system model, an adaptive fuzzy PID controller is proposed to adjust the real-time data of the PID parameters for the pressure control of the tractor electronic hydraulic hitch. The feasibility of the proposed controller was verified by simulation. Next, a pressure control experimental with the real vehicle experiment platform was carried out under three control algorithms of the traditional PID, the traditional PID with compensation correction and the adaptive fuzzy PID with compensation correction in verifying the pressure control effect of the tractor in different controllers. When the system was stable, the experimental results showed that the input was 1.5 MPa step signal with response time in the traditional PID controller of 2.5 s, fluctuation range of 0.5 MPa. However, the response time in the adaptive fuzzy PID with compensation correction was 1.5 s, fluctuation range of 0.3 MPa. The responding time was 40% lower, and the pressure fluctuation range was reduced by 40%. In conclusion, the proposed algorithm successfully realized the pressure control of the tractor. The proposed adaptive fuzzy PID with compensation correction in this paper has a better dynamic performance.

【 授权许可】

Unknown