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Hydraulic Integrated Interconnected Regenerative Suspension: Modeling and Characteristics Analysis.
Sijing Guo1,2, Liang Chen1,2, Xikai Wang1,2
1School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China.
Micromachines
|July 2, 2021
Summary
A new hydraulic suspension system (HIIRS) improves vehicle stability and harvests energy. This regenerative suspension significantly reduces vibrations and enhances off-road vehicle dynamics while simultaneously generating power.
Area of Science:
- Mechanical Engineering
- Automotive Engineering
- Vibration Analysis
Background:
- Traditional vehicle suspensions face limitations in vibration damping and energy recovery.
- Developing advanced suspension systems is crucial for improving vehicle performance and efficiency.
Purpose of the Study:
- To investigate the vibration characteristics and energy harvesting capabilities of a novel hydraulic integrated interconnected regenerative suspension (HIIRS).
- To evaluate the effectiveness of the HIIRS system in enhancing vehicle dynamics compared to traditional suspensions.
Main Methods:
- Modeling the HIIRS using coupled, frequency-dependent equations based on the hydraulic impedance method.
- Simulating vibration and energy harvesting performance by integrating the HIIRS model into a half-car model.
- Comparing the HIIRS performance with a traditional suspension system for off-road vehicles.
Main Results:
- The HIIRS-equipped vehicle exhibits natural frequencies and damping ratios suitable for off-road applications.
- Significant reductions in bounce (64.62%) and roll (11.21%) acceleration were observed compared to traditional suspensions.
- Average energy harvesting power reached up to 655.90 W at 108 km/h on a Class-C road.
Conclusions:
- The HIIRS system effectively enhances vehicle dynamics by reducing vibrations.
- The HIIRS demonstrates significant potential for simultaneous vibration energy harvesting in off-road vehicles.
- This novel suspension technology offers a dual benefit of improved ride comfort and energy generation.
Keywords:
energy harvestinghydraulic energy-harvesting shock absorberhydraulic interconnected suspensionvehicle dynamicsvibration characteristicsMore Related Videos
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