Mercedes-Benz Scraps Extended-Range EV Powertrains: What Went Wrong?
Mercedes-Benz recently made the decision to scrap extended-range EV powertrains after testing prototypes, a move that was reportedly influenced by a combination of factors. According to an Autocar report citing an anonymous source with knowledge of the matter, Mercedes conducted tests on prototypes based on existing models and concluded that the range-extender drivetrain is a transitional technology with limited sales benefits and high production costs.
### Prototype Details and Test Results
One of the prototypes tested was an EQS model with a front-mounted 1.0-liter turbo-2 engine acting purely as a generator to supply power to an electric motor, rather than directly driving the wheels. The engine ran on the Miller cycle to improve efficiency during near-constant-rpm operation, which is common for range extenders. The propulsion was provided by a 268-hp rear-mounted electric motor drawing power from a lithium-ion battery pack roughly half the size of a production EQS pack. Mercedes estimated that the combined range from both the battery and fossil-fuel power exceeded that of the EQS 450+ model.
### Challenges and Lessons Learned
While Mercedes-Benz has decided to discontinue extended-range EV powertrains, other automakers have faced similar challenges with this technology. BMW used a range extender with its i3 REx but eventually phased it out due to advancements in battery technology. The Karma Revero, previously known as the Fisker Karma, also utilized a range extender but did not see widespread success.
### Shift Towards Plug-In Hybrids
Mercedes-Benz is now focusing on developing more plug-in hybrids with DC fast-charging capability and larger batteries, rather than continuing with extended-range EV powertrains. This shift marks a strategic transition for the automaker as it adapts to changing market trends and consumer preferences.
### Future Outlook and Innovation
As the automotive industry continues to evolve, Mercedes-Benz remains committed to developing innovative solutions for sustainable mobility. While extended-range EV powertrains may no longer be a priority for the brand, the lessons learned from this experience will undoubtedly inform future product development and strategy decisions.
In conclusion, the decision to scrap extended-range EV powertrains reflects Mercedes-Benz’s commitment to staying at the forefront of technological innovation and addressing the challenges of transitioning to electric mobility. By focusing on plug-in hybrids and other sustainable solutions, the automaker is poised to meet the demands of an ever-changing market while continuing to deliver high-performance vehicles that meet the needs of modern consumers.