Reasons why electric vehicles have a speed limit.

Because they are environmentally friendly, electric vehicles are becoming increasingly popular, replacing internal combustion engine vehicles. However, electric vehicles have several limitations in terms of high-speed travel, and here are five reasons why.

Ensure safety

To make electric vehicles safer to drive, manufacturers rarely focus on speed and acceleration. Most potential consumers prefer driving at moderate speeds and with the ability to travel long distances.

Maintaining a moderate speed not only enhances the performance of electric vehicles but also extends the lifespan of their batteries.

When traveling at a moderate speed, traffic safety risks are minimized. Traveling at a moderate speed also helps the vehicle's safety systems function more effectively.

The safety of the driver and other road users is the primary reason why electric vehicle manufacturers add sophisticated systems to limit the top speed of electric vehicles.

Battery protection

The speed of internal combustion engine vehicles is typically limited by the drivetrain and engine oil. Electric vehicles, on the other hand, aim for durability for everyday commuting. Combined with safety features, the top speed of electric vehicles is limited to keep the battery and electrical circuits at a certain temperature.

If the top speed of an electric vehicle is set too high, the battery will overheat, significantly reducing its lifespan.

Additionally, engine RPM also plays a crucial role when considering the top speed of an electric vehicle. For example, Tesla has used a carbon ceramic coating for moving parts to prevent them from contacting and causing friction with the stationary parts of the electric motor.

According to studies, if an electric vehicle maintains a speed above 100 km/h, the battery consumption will be 68% higher than when driving at speeds below 50 km/h. This research also confirms that to keep the battery of an electric vehicle in optimal condition, drivers should adhere to a certain speed limit.

Brake protection

If an electric vehicle operates at maximum speed, the braking system will wear out quickly due to frequent braking, and the battery will be depleted in a short time. Maximum speed will quickly drain the battery, and using the brakes at high speeds causes rapid wear of the brake pads.

Gear ratio limit

Electric vehicle manufacturers limit the top speed of their vehicles according to the gear ratio to generate only enough torque for everyday driving needs.

This means electric vehicles will only be able to reach speeds sufficient for daily commuting. This process also affects the acceleration of electric vehicles, but primarily the top speed. Typically, electric vehicles only have a single-speed gearbox, allowing the engine to have a higher rev range compared to other conventional vehicles.