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Performance Improvement of a Vehicle Equipped with Active Aerodynamic Surfaces Using Anti-Jerk Preview Control
1Department of Mechanical and Aerospace Engineering, Gyeongsang National University, ReCAPT, Jinju 52828, Korea.
Sensors (Basel, Switzerland)
|October 27, 2022
Summary
This study introduces an anti-jerk preview optimal control strategy for active aerodynamic surfaces on half-car models. It enhances vehicle dynamics and ride comfort by reducing control input jerk and vehicle body jerk.
Area of Science:
- Automotive Engineering
- Control Systems Engineering
- Vehicle Dynamics
Background:
- Active aerodynamic surfaces offer potential for vehicle dynamics control.
- Reducing jerk in control inputs is crucial for performance and comfort.
- Preview control strategies can proactively manage known road disturbances.
Purpose of the Study:
- To formulate an anti-jerk preview optimal control strategy for a half-car model with active aerodynamic surfaces.
- To mitigate the effects of known road disturbances while enhancing ride comfort and road holding.
- To evaluate the effectiveness of the proposed control strategy against traditional optimal control.
Main Methods:
- Development of a two-part control strategy: feed-forward for disturbances and feedback for tracking error.
- Integration of an anti-jerk function to minimize control input and vehicle body jerk.
- Simulation analysis using MATLAB, evaluating frequency and time domain characteristics.
Main Results:
- The anti-jerk optimal preview control strategy effectively reduces control input jerk.
- Simultaneous reduction in aerodynamic surface jerk and vehicle body jerk was achieved.
- Enhanced vehicle dynamics and ride comfort were demonstrated without compromising road holding.
Conclusions:
- The proposed anti-jerk optimal preview control strategy significantly improves vehicle performance.
- The strategy offers a viable solution for enhancing ride comfort and vehicle dynamics in vehicles with active aerodynamic surfaces.
- This approach effectively handles known road disturbances proactively.
Keywords:
aerodynamicsanti-jerk controlasphalt roadbump inputhalf-car modelpreview controlroad holdingMore Related Videos
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