Abstract
Suspension dampers are extremely critical for modern automobiles for absorbing vibrational energy while in operation. For years now, the viscous passive damper has been dominant. However, there is a constant need to improve and revolutionize the damping technology to adapt to modern road conditions and for better performance. Controlled shock absorbers capable of adapting to uneven road profiles are required to meet this challenge and enhance the passenger comfort level. Among the many types of modern damping solutions, magnetorheological (MR) dampers have gained prominence, considering their damping force control capability, fast adjustable response, and low energy consumption. Advancements in energy-harvesting technologies allow for the regeneration of a portion of energy dissipated in automotive dampers. While the amount of regenerated energy is often insufficient for regular automobiles, it could prove to be vital to support lightweight battery-operated vehicles. In battery-operated vehicles, this regenerated energy can be used for powering several secondary systems, including lighting, heating, air conditioning, and so on. This research focuses on developing a hybrid smart suspension system that combines the MR damping technology along with an electromagnetic induction (EMI)-based energy-harvesting system for applications in lightweight battery-operated vehicles. The research involves the extensive designing, numerical simulation, fabrication, and testing of the proposed smart suspension system. The development of the proposed damping system would help advance the harvesting of clean energy and enhance the performance and affordability of future battery-operated vehicles.
Highlights
Suspension dampers have played a significant role in the automobile industry for years and are a crucial part of the modern-day commute
This research focuses on studying the feasibility of a suspension system that combines the MR damping technology along with an electromagnetic induction (EMI)-based energy-harvesting system in a parallel configuration for application in lightweight battery-operated vehicles
An analytical model is developed to predict the induced voltage through an energy-harvesting module, and a further parametric study is conducted through experimentation to understand the system performance
Summary
Suspension dampers have played a significant role in the automobile industry for years and are a crucial part of the modern-day commute. The active suspension systems use an external power source to improve the controllability and responsiveness of the dampers to external disturbances [4]. The second category of energy-harvesting technology uses an electromagnetic induction (EMI) device to generate voltage from the relative motion of permanent magnets and coils. Most existing coupled suspension designs have the MR damper and the energy-harvesting modules in a series configuration. The motivation of the current research is to overcome the existing limitations of MR dampers, coupled with the energy-harvesting module in a series configuration. This research focuses on studying the feasibility of a suspension system that combines the MR damping technology along with an electromagnetic induction (EMI)-based energy-harvesting system in a parallel configuration for application in lightweight battery-operated vehicles.
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