Power2Drive 2024: Designwerk focuses on mobile fast chargers and introduces MCS large buffer storage
The Swiss electromobility specialist Designwerk Technologies AG is presenting its extensive product portfolio at Power2Drive in Munich at the joint stand with the German rental partner SCHALL-E. This ranges from e-truck conversions, especially for special vehicles, potentially also with interchangeable battery systems in the future, to mobile fast chargers and stationary charging systems with buffer storage. The Swiss company also won The Smarter E-Award in the E-Mobility category with the Megawatt Battery Charging System. New to the mobile fast charger family is the MDC 88-920, which aims to meet the increased demand for charging commercial vehicles with a battery capacity of more than 500 kilowatt-hours.
More support from politics desired
The technology for the transition to electric drives in transport is available, it is stated at the stand. And it works in practice and can, under certain conditions and in combination with PV power generation and buffer storage, already be cost-effective today, as one official notes by referring to a recent application with the Swiss logistics company Galliker. However, there is a desire for a clearer commitment to the electrification of transport, especially freight transport, from politics. Abrupt actions or the cancellation of funding are not helpful here. With regard to climate goals, electrification is indispensable, technologically feasible, and the instruments are available. They aim to make a contribution with high local value creation, so the provider says.
High charging power in a compact format
The mobile fast chargers of the Swiss electromobility specialist are widespread among commercial vehicle manufacturers and their partners. Due to the use of modern SiC semiconductors with low switching losses, a sophisticated circuit topology, and a new air cooling system, the latest generation fast charger is intended to be even more compact and powerful. The MDC 88-920 enables a consistently high charging power of 84 kilowatts at up to 1000 volts. With a battery capacity of 400 kilowatts, charging with direct current from 10 to 80 percent state of charge (SOC) is completed in under four hours, with a battery capacity of 1000 kilowatts accordingly in around ten hours.
"The latest generation can simultaneously charge two vehicles with 42 kilowatts each. Electric vehicles with higher battery capacities, such as trucks, garbage collection vehicles, or sewer cleaning vehicles, can thus be flexibly charged overnight. This makes the MDC 88-920 the perfect overnight charging solution," explains Thorben Maier, Head of Sales Charging Technology at Designwerk.
Compatibility through interchangeable cable
The MDC 88-920 from Designwerk is easy to transport and flexible thanks to its roller set. The fast charger also boasts the latest generation of power electronics. It draws power from the common industrial socket formats CEE 63 and CEE125 and can charge vehicles with the CCS Type 1 and 2, CHAdeMO, and the Chinese GB/T standard. The provider states that the NACS and the new MCS standards could also be seamlessly integrated. This allows municipalities and customers who have different connections at the main and secondary locations to simply and quickly swap out the cable. Users are uncomplicatedly supported in charge management. "Charging processes can be analyzed and diagnostics created via interfaces," says Maier.
Mobile Charger 44-920 and 22-500 supplement
The third generation of mobile fast chargers is supplementing Designwerk's trade fair appearance: the Mobile Charger 44-920 and 22-500. These devices, like the MDC 88-920, also feature new technology. Due to the high power density, the devices can be used on a trolley and thus replace multiple fixed installations. This reduces costs because there are no civil engineering costs. Customers from the automotive industry as well as from bus and truck depots remain flexible, it is advertised.
Mega Charger with up to 2.1 Megawatts as a Miniature Model
For companies that need to reduce the charging times for their commercial vehicles in continuous and shift operations, the provider, together with partners, has developed a Stationary Battery-Backed Charger (SBC). The battery-buffered "Mega Charger" is based on the new global charging standard Megawatt Charging System (MCS) and can be seen as a miniature model at the trade fair.
MCS enables fast charging from ten to 80 percent within a break of around 30 minutes for a battery capacity of approximately 740 kWh. The SBC allows for intermediate storage of up to 2 megawatt-hours of power thanks to high-voltage battery systems in second-life application. The mobile container in the standard 20x40 foot format charges two commercial vehicles simultaneously with up to 1.4 megawatts. The integrated battery buffers avoid peak loads and relieve the power grid, the Swiss outline further.
Meeting the Performance Needs of Customers
At the trade fair, Designwerk's high-voltage battery experts also explain the diverse applications of their battery systems. "We quickly, service-orientedly, and with many years of practical experience from our own electric truck solve the individual storage challenges of our customers," explains Volker Nerlich, Sales Manager for High-Voltage Battery Systems and Special Projects.
The standard battery systems have capacities ranging from 65 to 250 kilowatt-hours and can be combined into battery sets with several megawatt-hours. With voltage options up to 800 volts, Designwerk adapts the battery systems to the individual space and performance needs. With high energy density, the battery systems guarantee safe operation and long life. Final production takes place in Winterthur, Switzerland.
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