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Damping Control and Experiment on Active Hydro-Pneumatic Suspension of Sprayer Based on Genetic Algorithm
Chaofan Qiao1, Haojun Wen1,2, Xinyue Liu1
1School of Mechanical and Electrical Engineering, Shihezi University, Shihezi, China.
Frontiers in Neurorobotics
|July 30, 2021
Summary
This study introduces an active hydro-pneumatic suspension system for self-propelled sprayers, significantly reducing vehicle body vibration. The optimized fuzzy PID control system enhances operational quality and safety on complex terrains.
Area of Science:
- Agricultural Engineering
- Mechanical Engineering
- Control Systems
Background:
- High ground clearance self-propelled sprayers face operational challenges due to significant body and spray boom swing in complex road conditions.
- These dynamics negatively impact operation quality and pose safety risks, necessitating improved suspension systems.
Purpose of the Study:
- To propose and design a timely-started active hydro-pneumatic suspension system for self-propelled sprayers.
- To develop a fuzzy PID control system optimized by a genetic algorithm for enhanced suspension performance.
Main Methods:
- Development of an active hydro-pneumatic suspension control plan.
- Design of a fuzzy PID control system optimized using a genetic algorithm.
- Simulation analysis using MATLAB and verification through indoor bench experiments and field road tests.
Main Results:
- Simulations showed significant reductions in root mean square (RMS) vehicle body vibration acceleration on D-grade (11.36-12.36%) and E-grade (13.25-14.89%) roads compared to passive suspension.
- Field experiments demonstrated RMS acceleration reductions of 20.33-22.45% for the active suspension across various speeds and road conditions (e.g., sand-gravel).
- Active suspension maintained limited displacement and offered superior damping compared to passive systems, proving its effectiveness.
Conclusions:
- The proposed active hydro-pneumatic suspension system, controlled by a genetically optimized fuzzy PID, effectively reduces vehicle body vibration in self-propelled sprayers.
- The system enhances operational quality and safety, particularly on challenging terrains and at higher speeds.
- The active damping scheme is validated as effective for improving sprayer stability and performance.
Keywords:
active hydro-pneumatic suspensionexperiment on hydro-pneumatic suspension of sprayer controlfuzzy PIDgenetic algorithmhigh ground clearance self-propelled sprayerMore Related Videos
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