Energy regeneration: A study on dynamic capacitance adjustment technology in piezoelectric shock absorbers for electric vehicles under varied road conditions
Shih-Lin Lin
TL;DR
This paper studies how adjusting capacitance in piezoelectric shock absorbers improves energy recovery in electric vehicles on different road types.
Contribution
The novelty is applying dynamic capacitance regulation to electric vehicle piezoelectric shock absorbers for energy recovery.
Findings
Dynamic capacitance regulation improves energy recovery efficiency on varied road conditions.
The technology adapts to different vibration frequencies and amplitudes effectively.
Simulation results confirm better performance compared to fixed capacitance systems.
Abstract
This study investigates the performance of dynamic capacitance regulation technology in electric vehicle piezoelectric shock absorbers for energy recovery under varying road conditions. By simulating a quarter-vehicle suspension system, this paper comprehensively analyzes the energy recovery efficiency of piezoelectric shock absorbers on gravel, speed bumps, and bumpy road conditions, comparing the performance differences between traditional fixed capacitance and dynamic capacitance. The results demonstrate that dynamic capacitance regulation technology can automatically adjust the capacitance value in response to instantaneous voltage changes, thereby enhancing energy recovery efficiency under various road conditions. This technology not only improves the energy conversion efficiency of piezoelectric shock absorbers but also strengthens the system’s adaptability to different vibration…
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Taxonomy
TopicsVibration Control and Rheological Fluids · Innovative Energy Harvesting Technologies · Geophysics and Sensor Technology