Rivian’s Active Aerodynamic Wheel Covers: A Step Toward Greater EV Efficiency?

Rivian has patented active aerodynamic wheel covers designed to reduce drag and improve efficiency. Learn how this innovation could impact EV range and performance.

Electric vehicles are becoming increasingly sophisticated, and every new patent hints at a potential leap in efficiency. Rivian has recently introduced an innovative approach to reducing aerodynamic drag—active wheel covers with movable elements. A newly published patent details a system that can adapt its configuration based on driving conditions.

In its default state, the wheel cover remains open, exposing the spokes. However, when a reduction in air resistance is needed, the mechanism activates, sealing the openings and creating a smooth surface. The transition is driven by a spring-based system rather than a complex electric motor, which could be beneficial in terms of reliability and production cost.

SUVs and pickup trucks, like those in Rivian's lineup, naturally suffer from higher aerodynamic drag compared to sedans or hatchbacks. Automakers continuously seek ways to reduce drag and extend range. Much like active grille shutters in internal combustion vehicles, these adaptive wheel covers could improve aerodynamics while also aiding in brake cooling.

But the real question remains: how effective is it? There are no official figures yet on how much range this technology might add. Similar aerodynamic innovations from other manufacturers have achieved a 2-3% reduction in drag coefficient, translating to a few extra miles of range.

While the concept is intriguing, the patent does not specify the materials or durability of the system. This is a crucial factor, as existing aerodynamic covers have been known to cause wear on wheel paint over time. Some Rivian owners have already reported such issues with the company’s standard 21-inch aero wheel covers.

It also remains unclear whether this technology will make it to production or stay in the concept phase. Rivian has not announced any testing or release plans yet. However, the patent underscores the company’s commitment to experimenting with aerodynamic innovations, which could set a trend for future electric trucks.

Source: greencarreports.com