An Innovative Energy Harvesting Shock Absorber System for Motorbikes

Abstract

This paper presents an innovative energy recovery shock absorber system for motorcycles. The shock absorber is named SP-EHSA (Synchronous Pulley -Energy Harvesting Shock Absorber). The SP-EHSA is the first system specifically designed to maximize the energy recovery of motorcycles without compromising their dynamic behavior. Throughout the article the theoretical design, computer modeling, optimization, design, and testing of the system is presented. The article results in a validated computer model of the SP-EHSA shock absorber. The validation is done by manufacturing and testing a physical prototype on a test bench. A study of the energy recovery potential for different road profiles at speeds between 20 km/h and 100 km/h was carried out, obtaining in a typical type B road at 60 km/h an estimated 19,68 W average power. Finally, the effect of energy management (i.e. battery's state of charge) on the dynamic behavior of the vehicle is analyzed.

Enhanced Energy Recovery in Magnetic Energy-Harvesting Shock Absorbers Using Soft Magnetic Materials

“…Electromagnetic EHSA: As mentioned earlier, electromagnetic dampers have gained considerable interest in recent years. These systems employ a coil and a magnet to generate electrical energy through electromagnetic induction, offering advantages such as a compact design, compatibility with existing suspension systems, and a potentially high energy recovery efficiency [12]. However, challenges remain in optimizing the energy conversion process, addressing the low-frequency nature of suspension systems, and minimizing the impact on ride comfort and road handling.…”

Study of an Energy-Harvesting Damper Based on Magnetic Interaction

“…Energy recovery through electromechanical systems is very promising because, in addition to allowing the recovery of part of the energy that would otherwise be dissipated, it allows the suspension to be converted into an active suspension, making it possible to change its operating characteristics electrically [ 23 ]. Damper-based energy-recovery systems have mostly been applied to cars, but it is also possible to find some design, development and implementation on motorbikes [ 24 ].…”

Modelling and Investigation of Energy Harvesting System Utilizing Magnetically Levitated Permanent Magnet

“…In recent years, the energy harvesters for portable devices, for example, smartwatches [1], for moveable systems like vehicles to provide power for sensors in tire pressure monitoring systems, from tires [2] and shock absorbers [3,4], for sport-or medicine-related sensors from the motion of human body [5] and for a hard-to-reach system like vibration sensors on bridges [6] are developed. One of such energy harvesters are electromagnetic generators.…”