With the passage of time, the vehicles that circulate on our roads evolve, and in the same way do their tires. Electric cars are a clear example of this idea: their own nature causes the type of covers they must use to be different from that of combustion cars. The main reason is the greater wear caused by the weight of the batteries, which has a decisive influence on how they move along the asphalt. It also affects the regeneration system from when the driver takes his foot off the accelerator until the car brakes, which means greater wear in the case of electric.
Some manufacturers endorsed their need by considering that conventional ones would wear up to 25% faster if they were used in an electric vehicle. Therefore, taking into account the nature of this type of vehicles, the idea is that little by little they will be more efficient and with greater rolling resistance since, with more resistant tires, they will achieve greater autonomy.
In fact, according to a recent study, rolling resistance accounts for up to 20% of the energy consumed by a moving vehicle, and in the case of electric vehicles it can be even higher. This means that one of the biggest challenges for manufacturers is to produce wheels that improve autonomy.
Another factor in which they play an important role is in aerodynamic drag, becoming another of the priorities of its design. The inertia of the vehicle contributes to the loss of energy during acceleration and does not recover during braking.
In summary, it could be said that this class of tires is characterized by its large diameter and its smaller section width, since these characteristics contribute to reducing rolling resistance and, therefore, energy consumption.
But, in addition to these qualities, another of the objectives that manufacturers set is to make the covers increasingly durable. In the future, it seems that a large part of electric cars will be concentrated in fleets, and the main interest of their managers will be that their vehicles are as long as possible circulating. There will also be advances in other aspects, such as knowing the state of the wheels in real time. This way they can anticipate possible problems and minimize their consequences.
In short, the manufacture of brand tires for electric cars, due to its own nature, should focus on three main elements: the reduction of energy consumption and the minimization of noise.
The future, we know, is uncertain and changing, and therefore we work on multiple possibilities for the improvement and development of tires. One of the advances that are closer to becoming a reality is, as we mentioned earlier, the incorporation of sensors that provide useful information to the driver. In this way, aspects such as asphalt conditions can be known to then adapt speed, braking and stability to the circumstances of the road.
The engineering and design departments of the leading manufacturers are focusing much of their progress on these new developments. The electric vehicle advances, and with it, the technology of its tires and the multiple possibilities they offer.