A Review of Research on Electromagnetic Suspension Technology for New Energy Vehicles

Abstract

Driven by the global "double carbon" goal and the transformation of the automobile industry towards electrification and intelligence, the chassis system of new energy vehicles has changed from achieving a "balance of handling smoothness and stability" to meeting the needs of "good driving performance, intelligence, and high energy utilization". Relying on its core advantages such as fast response speed, wide adjustable damping range, and high energy recovery efficiency, electromagnetic suspension has become a key technology to resolve the contradiction between long endurance and high performance of new energy vehicles. This paper conducts a systematic review of the domestic and foreign research progress of electromagnetic suspension technology for new energy vehicles, explores its structural types, performance optimization and control strategies, and quantitatively analyzes the impact of structural characteristics on the transmission efficiency and spatial compatibility of different topological configurations; analyzes the key approaches to performance optimization from the three dimensions of electromagnetic characteristics, mechanical characteristics, and thermal characteristics; and compares the control effects and engineering applicability of classic control, modern control, and intelligent control strategies. Finally, the shortcomings of the current technology are clarified, and the future development of related fields is prospected, with a view to providing reference for the technological innovation and industrial application of electromagnetic suspension for new energy vehicles.