State of the Art

The countries that are influential in the development of inductive technology and standardization are the United States, Germany and Japan. Some renowned car manufactures aim towards 2018 to provide inductive charging equipment for home charging at low-power and high efficiency that meet a standard that should be ready by then. In the current situation it is only Evatran Plugless equipment made for retrofit that is available. Continued work is now focused on offering lower cost and higher power.

Tests related to CE marking

Many consumer products within EU are marked with CE, an abbreviation of ”Conformité Européenne”. The CE mark means that the product fulfills EU legislations and can thereby be freely sold within the European Economic Area. Typically the product is CE marked by the manufacturer or the importer.

For the WiCh project, the related directives and legislations were the low voltage directive, electromagnetic compatibility and reduction of hazardous substances. The project therefore used the independent party SP Technical Research Institute of Sweden to evaluate compliance.

Magnetic fields

Many people are concerned with magnetic fields. The Swedish Radiation Authority (SSM) has measured the magnetic fields in and around the inductively charged vehicles in the WiCh project.

Although the magnetic fields at charging can be quite high close to the rear of the vehicle and even higher underneath it, inside the vehicle the magnetic fields are quite low. Apart from close to the charging equipment, the magnetic fields are below what is allowed by the Swedish Work Environment Authority, which means that the equipment could be used in the project.

These results only apply to this specific combination of vehicle and charging system and are not generic to other induction charging systems.

Wireless power pioneer joins forces with tier one supplier to design systems for 2019 models

WiTricity, the industry pioneer in wireless power transfer over distance, today announced they are collaborating with Prodrive Technologies, tier-1 supplier of power electronics and sensors, to design a high-performance 11kW wireless charging system. The two companies were selected to design the system by a leading European carmaker that plans to release its first wirelessly-charged vehicles in 2019.