Summary
- Stellantis patented a deployable diffuser that doubles as a bed step
- Ram may be looking to turn the bed step into an active aerodynamic feature for its future electric trucks
- Combining an active diffuser with a bed step would be a first in the industry
- The feature would help boost range by reducing drag from turbulent air flow
- The design is intended for use on vehicles with body-on-frame construction, like Ram’s pickups
Article
Stellantis, the parent company of Ram, has patented a unique deployable diffuser that also acts as a bed step for its future electric pickup trucks. This innovative feature aims to improve efficiency and make it easier for users to access the bed of the truck. While both active aerodynamics and bed steps are not new concepts individually, combining the two in a single feature would be a first in the automotive industry.
The patent application filed by Stellantis describes the feature as a “vehicle rear step and diffuser system” that could potentially boost the range of Ram’s upcoming electric pickup trucks. Ram had previously showcased an active diffuser on its 1500 Revolution BEV concept, demonstrating the potential benefits of such a feature. Mercedes-Benz also featured a similar concept on its Vision EQXX concept in 2022, indicating a growing trend towards incorporating active aerodynamic elements in vehicle design.
The patented diffuser system on Ram’s future electric trucks would feature a bottom surface designed as a diffuser to improve downforce and reduce drag, ultimately enhancing the vehicle’s efficiency and range. The top surface of the step would serve as a functional step for users to access the bed of the truck, providing a dual-purpose design that maximizes utility. The deployable nature of the diffuser ensures that it can be stowed when not in use, preventing it from protruding past the rear bumper of the vehicle.
The patent application specifies that the feature is suitable for vehicles with body-on-frame construction, such as Ram’s pickups, including the anticipated 2025 Ram 1500 REV. The accompanying drawings show a detailed design of the feature integrated into a pickup truck’s rear tailgate, resembling the concept showcased on the Ram 1500 Revolution BEV. While the concept model may not be destined for production, it offers a glimpse into the potential design direction for Ram’s future electric trucks.
By combining an active diffuser with a bed step, Ram aims to introduce a practical yet innovative feature that could set its electric pickup trucks apart in the market. The dual functionality of the deployable rear step and diffuser system not only enhances the truck’s aerodynamics and efficiency but also improves user experience by facilitating easier access to the bed. As electric vehicles continue to gain traction in the automotive industry, incorporating advanced aerodynamic features like the patented diffuser could prove crucial in optimizing performance and range for future electric trucks.
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