One of the biggest promises of electric vehicles is the relative freedom from routine vehicle maintenance. No more oil and filter changes, spark plugs, tune-ups, diesel particulate traps, diesel exhaust aftertreatment fluids, and a myriad of other parts. Not as many muffler clamps to deal with.
Well, on the way to a blissful gas-free drive, something interesting happened. The final piece that connects the car to the road is the tire, which is still bent. Since it uses air, it must be replaced regularly. And if the motor runs quietly, the motor’s demands on tractive force, load, and noise are quite peculiar. EVs need EV-specific tires.
What is the difference between EV tires? We spoke to several tire companies to get a better understanding of what materials go into tire ovens in the first place and what the tires proved in development testing before hitting the road.
Yes, conventional Internal Combustion Engine (ICE) vehicle tires will fit on EV vehicle wheels, but we do not recommend using them in this manner. EV tires are specifically designed to withstand the additional weight, dynamic loads, and traction demands of EVs. Non-EV tires wear much faster, are more likely to cause heat-related issues, can cause wheelspin from a standstill, and can be directional even when using traction control. Stability may be lost.
weight and load
There are some fundamental differences between ICE cars and EVs, even before either car moves. EVs are generally heavier than ICE cars of the same size or class. For example, the electric Mercedes-Benz EQS 450 4Matic has a curb weight of 5,597 lbs (2,539 kg), while the ICE S500 4Matic weighs only 4,610 lbs (2,091 kg). Although these cars are not on the same platform, they retain the same size class and are located in the same general segment. EVs are nearly 1,000 pounds (454 kg) heavier due to the simple fact that batteries weigh more. Weight issues will improve over time, but in the near future the basic structure of a tire carcass will have to withstand such heavy load-bearing tasks.
Many people think that only a tire’s rubber compound or polymer can affect its traction and grip. The void volume between them makes a big difference in the overall stiffness and load capacity of the tire.
The positive side of static load balancing is that that huge battery weight is often evenly distributed across the front and rear of the EV. However, all bright spots have clouds. If that weight were concentrated in a much smaller footprint in the middle of the car, it would benefit the dynamic mass of the car during braking, cornering and acceleration. to change direction will not help. Also, since the car is a moving animal, the dynamic load capacity of the tires must be sufficient for this task. This means structural stiffness under his 5,597 pounds on the EQS. Not only when stationary, but also during braking, cornering and accelerating.