Automotive Smart Grid Technology

Be Flexible Charging Your e-Vehicle with EBV and CharIN

electric vehicle charging

No question: Electric mobility is still not at the status as it could be. Beside low range of current e-vehicles, for many people the insufficient charging infrastructure is one of the core reasons not to invest in an e-car yet. Fully understandable! Because what could be more annoying than being stranded on the motorway with an empty battery? But new technology and standards promise improvements.

About one million e-cars are supposed to be underway on the streets until the year 2020 in Germany. Whereas the registration hybrid cars in 2016 increased strongly, the numbers for e-cars were surprisingly declining. Not a good trend in order to reach the ambitious goal of the German government. There’s undoubtedly still plenty of work ahead, and one significant construction area is being tackled by EBV with the collaboration with CharIN.

CharIN Defines Charging Standard

The Charging Interface Initiative e.V., CharIN, pursues the goal to establish the Combined Charging System (CCS) as the standard for charging battery-powered electric vehicles of all kinds. EBV has joined this initiative which was founded by major automotive manufacturers. With active involvement in customer projects that include power supply, charging technology, secure payment, electric drive train and vehicle management as well as a strategic linecard of manufacturing partners, EBV is contributing with a lot of expertise and design know-how to CharIN.

Industrial standards are important in order to improve suitability of products, processes and services. Furthermore, communication between different devices can be eased or ensured. One of the problems with worldwide charging infrastructure are the different charging system standards.

charin ccs specification
CCS Specification (Image: CharIN)

CCS Specifications

The Combined Charging System (CCS) standard for electric vehicles combines single-phase with rapid three-phase charging using alternating current (AC) at a maximum of 43 kilowatts (kW), as well as direct-current (DC) charging at a maximum of 200 kW and the future perspective of up to 350 kW. Today we can find combo-chargers that provide AC (43kW), the Japanese Chademo (50kW) and CCS 1.0 (50kW). We are currently in the transition phase to migrate to the CCS 2.0 standard. With that only one plug design would be necessary.

CCS also defines the power line communication (PLC), which is vital to avoid damages at the car battery. The specification describes the CCS’ main features, including the charging process itself as well as safety, user authentication, payment authorisation and load balancing functions. It also provides guidance as to which standards have been implemented in the system. As the CCS standards evolve, backwards compatibility will be maintained with previous iterations in order to maximize simplicity ease of use and security of investment.

Challenges For The Grid

The development of electric mobility moreover involves tremendous challenges to the power grip as well. Voltage peaks need to be handled by the electricity providers. This especially holds if more and more fast-chargers that provide up to 350 kW will be installed.

The EBV smart grid experts will be at this year’s PCIM Europe trade fair happening from May 16th through 18th 2017 in Nuremberg, Germany. They will give insights into concepts of fast electric vehicle charging systems and present a grid concept for the Combined Charging Station up to 350 kW. Apart from that, there will be the chance to discover a customer example of a DC/DC solution charging station.

So make sure to come to Nuremberg in May and visit EBV at PCIM Europe (Hall 9, Stand 9-415). More information about our presence at the international leading exhibition and conference for power electronics, intelligent motion, renewable energy and energy management can be found on our event page.