Transitioning Away from Range-Extended EV Technology
The decision came after Mercedes assessed the prototypes and determined that range-extender drivetrains are a transitional technology offering limited short-term benefits in sales and involving high production costs.
Prototype Details
One of the tested prototypes featured a 1.0-liter turbo-2 engine in an EQS model, operating as a generator to power an electric motor rather than directly driving the wheels. The setup aimed to enhance efficiency during near-constant-rpm operation typical of range extenders.
The electric power in the prototype was supplied by a 268-hp rear-mounted motor drawing from a lithium-ion battery pack about half the size of a standard EQS battery. The combination of battery and range extender was projected to surpass the range of the EQS 450+ model.
Comparing with Other Brands
While Mercedes has stepped back from range-extended EVs, other companies like Ram and BMW have experimented with similar technologies, with varied levels of success. Ram’s Ram 1500 REV aims to incorporate a range extender while maintaining towing capabilities, while BMW’s i3 REx moved away from this concept as battery technology improved.
Future Direction
Mercedes is now focusing on developing more plug-in hybrids with larger batteries and DC fast-charging capabilities, although substantial engine downsizing has not been a priority in these models as of yet.
Conclusion
Mercedes-Benz’s decision to abandon range-extended EVs showcases the company’s strategic shift towards more sustainable and economically feasible electric vehicle technologies. By focusing on plug-in hybrids and advancements in battery technology, Mercedes aims to align with the evolving landscape of the automotive industry.
FAQ
Why did Mercedes-Benz decide to stop developing range-extended EVs?
The decision was based on the assessment of prototypes which indicated that range-extender drivetrains offered limited short-term benefits in sales and involved high production costs.
What technology is Mercedes-Benz focusing on instead of range-extended EVs?
Mercedes is now concentrating on developing more plug-in hybrids with larger batteries and fast-charging capabilities to adapt to the changing market demands and technological advancements in the automotive industry.
