Maximizing Electric Vehicle Range: The Impact of Tyres

While significant advancements in battery size, intelligent management systems, and streamlined aerodynamics have contributed to enhancing the range of electric vehicles (EVs), there is a crucial factor that often goes unnoticed.

Surprisingly, something as basic as changing tyres can have a substantial impact on extending the range of an EV. Leading the charge in this area is Michelin, with their latest range of electric car tyres boasting remarkable low-rolling resistance capabilities. According to Michelin, these cutting-edge tyres have the potential to add up to an impressive 50 kilometres of extra range on a single charge.

Bruno De Feraudy, Senior Vice President at Michelin, recently shared an exciting insight into the power of their electric car tyres. During an interview at Michelin’s research and development base in Clermont Ferrand, France, De Feraudy revealed that by utilizing specific EV tyres, drivers can expect an impressive boost of 30 to 50 kilometres in battery range. This significant improvement highlights the positive impact that Michelin’s innovative tyre technology can have on enhancing the performance and efficiency of electric vehicles.

As the electrification of vehicles continues to reshape the automotive landscape, the significance of tyres in this paradigm shift cannot be overstated. Michelin, renowned for embracing ambitious endeavors, has risen to the challenge with the introduction of their latest tyre range, the E Primacy. These cutting-edge tyres are meticulously engineered to cater specifically to electric vehicles, prioritizing the optimization of rolling resistance.

“This strategic focus on reducing rolling resistance serves as a crucial safeguard for the battery, aligning with Michelin’s commitment to pushing the boundaries of innovation and sustainability in the automotive industry.”

In addition to enhancing range, the evolution of electric car tyres presents a fresh set of obstacles to overcome, as highlighted by Bruno De Feraudy.

“The shift to electric vehicles brings unique challenges such as effectively managing the additional weight of the vehicle, delivering optimal performance under high-torque conditions during acceleration, and minimizing cabin noise.”

These emerging factors necessitate tire innovations that cater specifically to the demands of electric cars, showcasing the industry’s commitment to tackling these novel challenges and ensuring a seamless transition to the future of sustainable mobility.

De Feraudy emphasized the ongoing pursuit of pushing boundaries in tire development, acknowledging the need to further address key trade-offs. The challenge lies in effectively managing the substantial torque load exerted by electric vehicles while concurrently reducing road noise, which significantly contributes to overall cabin noise levels.

Michelin remains committed to advancing tire technologies that strike the right balance, ensuring optimal performance, reduced noise levels, and an enhanced driving experience for electric vehicle owners.

For the past five years, Michelin has dedicated efforts to developing range-extender tires with reduced rolling resistance. However, De Feraudy expressed uncertainty regarding the extent of progress that can be achieved in the next five years. While the company aims to further decrease rolling resistance, there is a limit to how much it can be reduced.

“Total elimination of resistance is not feasible, as it would compromise grip and control, resulting in a driving experience akin to navigating on ice. Striking the right balance between reduced resistance and maintaining optimal grip remains a key challenge in tire development.”

Michelin’s engineers are constantly working on innovative solutions for the EV industry, according to De Feraudy. He mentioned that sometimes they come up with groundbreaking solutions that seem unbelievable. However, there is a need to ensure practicality and feasibility in implementing these ideas, requiring a balance between pushing the boundaries of innovation and maintaining real-world applicability.

De Feraudy explained that sometimes these innovative solutions may seem unconventional at first, but with sufficient time and investment, they can prove effective. He highlighted that with electric vehicles and their heavy battery weight ranging from 300 to 700 kilograms, Michelin’s E Premacy tyres can now support an additional 300 kilos on the car. This represents a significant improvement and showcases a paradigm shift in the industry, achieved simply by changing the tyre’s construction.

While De Feraudy acknowledges the progress made by Michelin, he emphasizes that they are far from reaching the ultimate goal when it comes to EV tyres.

“The limit is unknown, but there is still ample room for further advancements and improvements in tyre technology.”