A team of researchers is working hard on improving wireless charging solutions. One of their goals is to implement the feature for electric vehicles to streamline the process and make them more attractive for potential customers.
The team has already developed a few charging methods that could double the power of classic systems, which would be a great achievement since fast wireless charging solutions remain quite slow in comparison to the wired equivalent.
Another implementation comes in the form of being able to reduce the size of the charging system while maintaining the power output. The new system involves the use of two coils, with one being placed under the vehicle while the other remains at street level. When the system is active the coils will release energy, which charges the battery.
One of the researchers who contributed to the study has stated that it can charge the battery in a uniform manner, increasing power density. During a test the scientists transferred 50 kilowatts of energy with an efficiency of 95%, an impressive feat.
One of the great obstacles in the way of developing a superior charging solution is the need to keep high levels of vehicle integration as most customers won’t want to buy or use a car that seems to have strange bits glued on it.
The coils system involves the use of a three-phase inductive wireless power transfer protocol with bipolar phase winding. By harnessing the potential of rotating magnetic fields the system can achieve a power transfer performance that is superior in comparison to classic single phase-system. Other advantages are also present since such a system requires a lower amount of components and reduced emissions of electromagnetic fields.
Electric vehicles are more popular in recent years, but many potential buyers decide to purchase a regular car since autonomy is considerably higher, and you can fill the tank in mere minutes.