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Wheel Slip Control Applied to an Electric Tractor for Improving Tractive Efficiency and Reducing Energy Consumption
Rodnei Regis de Melo1, Fernando Lessa Tofoli2, Sérgio Daher3
1Federal Institute of Education, Science, and Technology of Ceará, Limoeiro do Norte 62930-000, Brazil.
Sensors (Basel, Switzerland)
|June 24, 2022
Summary
This study introduces automatic slip control for two-wheel-drive electric tractors, enhancing tractive efficiency. The system improves stability and reduces energy consumption in electric vehicles (EVs) by optimizing wheel slip on different soils.
Area of Science:
- Agricultural Engineering
- Robotics and Control Systems
Background:
- Optimizing tractive efficiency in electric tractors is crucial for energy conservation and performance.
- Wheel slip significantly impacts the traction and energy consumption of electric vehicles (EVs).
Purpose of the Study:
- To develop and evaluate an automatic slip control system for a two-wheel-drive electric tractor.
- To demonstrate the benefits of maintaining optimal slip range for improved tractive efficiency and reduced energy usage.
Main Methods:
- Longitudinal dynamics modeling of the electric tractor.
- Implementation of simple proportional-integral (PI) controllers for inverter control.
- Experimental validation on a prototype tractor with slip control enabled and disabled.
Main Results:
- The slip control system effectively maintained optimal slip ranges.
- Enabled slip control resulted in more stable tractor performance.
- Reduced energy consumption was observed when slip control was active.
Conclusions:
- Automatic slip control is a viable strategy for enhancing electric tractor efficiency.
- The proposed PI controller-based system offers a practical solution for EV energy management.
- Further research can explore diverse soil conditions and advanced control algorithms.
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