The Future of Electric Cars Could be Wireless Power Transmission

December 13, 2013

Recently, the Electronic Vehicle Symposium 27 was held in Barcelona. This conference presented a platform for exploring wireless technology, which has been a major subject in most headlines. Wireless charging is a topic that is still in need of more education and careful thought. Two major companies, Brusa, and Qualcomm displayed wireless solutions in the conference. Qualcomm is an American start-up while Brusa is a Swiss company that has many years of experience in engineering of electric vehicles. It is essential to get an overview and a basic understanding of wireless charging.

While everyone talks of wireless charging, that might actually not be the accurate term to use of the technology in question. This charging actually entails transmission of wireless power between a transmitting coil and a receiving coil through a magnetic field. The process of charging is unique, and starts when the car’s coil has changed the energy received in the form of electricity. It is essential for the parking pad to be somewhat large. A larger parking pad works better since the device should be quite tolerant to misalignment. The parking pad displayed by Brusa was thicker and larger compared to that of Qualcomm. The outlook of the Brusa unit was tough and industrial, while that of Qualcomm was more of home equipment. It was evident that the American corporation focused most energy and time towards design. A wide range of car receivers were also displayed by the American company.

With respect to safety, the representatives of both Brusa and Qualcomm said that their charging systems were safe. Both had a built-in obstacle-detecting device. If the device sees something interfering, the magnetic field is instantly switched off. Since both companies carried out several outdoor and indoor tests, safety ought not to be an issue in the future. Wireless Power Technology (WTP), commonly referred to as wireless charging is still a technology that is add-on. There is the tendency for all electric vehicles to have standard plugs. These plugs are somehow same as those applicable to computers. Nowadays, wireless Internet is available everywhere, but an Ethernet port is still present in most computers for emergency uses. It is evident that the cost of electric vehicles will rise because of wireless power transmission. Efficiency will also be an issue.

The fans of electric cars have proudly claimed that the efficiency of an electric motor is higher than that of a combustion engine. Generally, future electric-vehicle drivers may embrace wireless power transmission because of its convenience. However, cost and efficiency are major obstacles to its adoption.


Filed under: Electric Cars,Hybrid Events

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