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The Volkswagen Group Components brand develops innovations for the e-mobility of today, tomorrow and the day after tomorrow. One focus is on innovative charging concepts. After a flexible charging station and mobile charging robot, the company is now presenting its latest product: the innovative DC wallbox with charging up to 22 kW. Real operation is currently starting in a pilot phase at five plant locations. The goal is practical experience in order to quickly develop the DC wallbox towards series production.
innovative DC wallbox
Mark Möller, Head of the Technical Development & E-Mobility division: "A comprehensive and demand-oriented charging infrastructure is the key to the success of e-vehicles. That is why we are working on different approaches that enable customer-friendly, intelligent and flexible charging. Like our flexible fast charging station and the visionary study of a mobile charging robot, the DC wallbox is part of the future, innovative DC charging family for e-vehicles."
twice as fast as with an AC wallbox
With the new wallbox, electric vehicles can be charged with direct current (DC = direct current) of up to 22 kW - and therefore usually twice as fast as with a wallbox operated with alternating current (AC). With a charging technology based on direct current, the current flows directly into the drive battery. The prerequisite is that the e-vehicle has a CCS charging socket. Compared to systems based on alternating current, electric vehicles are charged independently of their integrated onboard charger, which limits the charging power. When charging the drive battery directly with direct current, however, higher charging capacities are possible than with alternating current. Charging processes can thus be significantly shortened.
Volkswagen Group Components starts pilot phase
As an innovative detail with future prospects, the DC wallbox is already being prepared for bidirectional charging. This means that electricity can flow in two directions via the wallbox: the electricity stored in the vehicle's drive battery can also be fed back into the grid if necessary thanks to intelligent charging management. If an e-vehicle has this function in the future, it can, for example, serve as an energy store for one's own house or as a buffer for the power grid. In order to gain practical experience with the new product, Volkswagen Group Components is starting the pilot phase at its own plants in Wolfsburg, Braunschweig, Hanover, Salzgitter and Kassel, initially with 20 DC wallboxes. This is intended to supplement the existing charging infrastructure on the factory premises at the same time. Because with the increasing number of e-vehicles, the need for charging options also increases in the Volkswagen Group.
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