Review of Key Technologies and Optimization Methods of Vehicle Dynamic Wireless Charging Systems

Abstract

The new energy vehicle market is exploding, but two big issues keep dragging it down: limited driving range and clunky charging setups. For starters, wired charging? It’s just asking people to plug and unplug cords manually, which gets old fast. The connectors themselves wear out, especially in bad weather. Rain or snow can mean leaks—a real headache. Battery swapping stations sound promising, but they’re expensive to build and keep running. Plus, carmakers insist on their own battery specs, so scaling up just isn’t happening. Dynamic wireless power transmission (DWPT) flips the script. Cars can charge as they drive, making range anxiety less of a thing—exactly what autonomous vehicles and smart transport need. DWPT stands out as the next big step in charging technology. Researchers everywhere dive deep into coil design, resonant circuits, and performance optimization. Still, the field hasn’t figured everything out. The way coupling mechanisms and compensation topologies match specific situations is unclear. Charging a bunch of vehicles at once strains the power grid. Changes in vehicle speed, coil placement, and device parameters don’t have a unified framework, and no one’s nailed a full theory for optimizing lots of factors together. Most reviews get stuck on hardware, ignoring how magnetic fields, circuit design, and control logic actually work together. This leaves gaps—anyone trying to boost simulations or algorithms ends up missing key pieces. This article zooms in on segmented guide rail systems with vehicles carrying multiple pickup coils. It unpacks three major components: magnetic coupling mechanisms, resonance compensation circuits, and dynamic balance controls. The article compares the main technical solutions being used in China and other countries—how they perform, what they cost, and whether they play nice with household EVs. It lays out the standards that need attention and builds a multi-dimensional system to evaluate everything. The analysis looks into where household EVs fit, shows the direction for tech upgrades, and sketches out the path to full-scale commercialization. All of this strengthens the theory behind segmented-multi-pickup composite charging, highlights areas needing more research, and gives engineers and researchers a clear reference for real-world progress and innovation.