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Why Do Electric Cars Make Noise

Why Do Electric Cars Make Noise

Why Do Electric Cars Make Noise?

Electric cars have been gaining popularity over the years, especially with the increase in awareness about climate change and pollution. Unlike traditional gasoline-powered cars, electric vehicles run on electricity stored in batteries. These batteries are not only efficient and cost-effective, but they also produce zero emissions, making them an eco-friendly alternative.

However, electric cars have one major drawback – they are quiet. In fact, they are so silent that pedestrians or cyclists may not hear them coming, which can pose a significant safety risk. This has led to the introduction of various regulations around the world, which require electric cars to emit some sound.

The Science Behind the Silence

The reason why electric cars are so quiet is simple – they don’t have an engine or exhaust system. Instead, they have an electric motor, which operates by converting electrical energy to mechanical energy. This conversion produces very little noise, which means that electric cars are almost silent when they are moving.

The Sounds of Safety

To address the safety concerns around electric cars, automobile manufacturers and governments have been working to develop guidelines for the type of sounds that electric cars should produce. These sounds, known as Acoustic Vehicle Alerting Systems (AVAS), are designed to alert pedestrians and cyclists to the presence of electric vehicles on the road.

The sounds produced by AVAS are not meant to be overly loud or disruptive, but rather to be distinct enough to be easily identifiable. Some sound options being considered include sounds resembling traditional combustion engine cars, futuristic sci-fi sounds, and even animal sounds.


Electric cars are a promising solution for reducing our carbon footprint and combating air pollution. However, the lack of noise produced by these vehicles can pose a dangerous safety risk. That’s why automobile manufacturers and governments are working together to create guidelines for the types of sounds electric vehicles should produce. By introducing AVAS, we can make sure that we can enjoy the benefits of electric cars without compromising safety.