Abstract
<div class="section abstract"><div class="htmlview paragraph">Electromagnetic energy-regenerative suspension can convert the kinetic energy
generated by the suspension vibration into electrical energy for energy
recovery. However, most research has focused on achieving maximum
energy-regenerative efficiency without simultaneously considering the
suspension’s damping control, leading to suboptimal vibration damping
performance. This paper proposes a novel switchable energy-regenerative
suspension (SERS) system, which includes an electromagnetic damper (EMD) and a
switchable circuit. First, a detailed description of the mechanical structure
and the switchable circuit structure of SRES, and their working principles, is
provided. Within the switchable circuit, a double-throw switch is used to
connect the damping control module and the energy recovery module. Based on
this, the system can switch between these two modules, balancing both vibration
damping performance and energy recovery functionalities. Then, corresponding
dynamic model is developed. In the damping control model, adjusting the
resistance value of the load resistor can alter the system’s damping to achieve
better vibration damping performance and enhance driving comfort. In the energy
recovery module, adjusting the duty cycle of the PWM signal input to the MOSFET
can maintain a stable output voltage, ensuring a continuous and smooth power
supply to the energy storage device. In order to obtained a better vibration
damping performance, a dynamic controller for adjusting damping is designed. The
simulation analysis is conducted, which demonstrates the proposed SERS system
can significantly improve vibration damping performance of suspensions and shows
excellent energy recovery performance.</div></div>