Why do electric vehicles (EVs) cause motion sickness in passengers?

Electric vehicles (EVs) can cause motion sickness due to a sensory mismatch. Their extreme quietness means passengers' eyes see movement, but their ears don't detect expected engine noise or vibrations, confusing the brain.

What specific EV features contribute to passenger motion sickness?

Features like regenerative braking, which slows the car unexpectedly when the accelerator is released, and the immediate, linear torque delivery that makes acceleration feel abrupt, can worsen motion sickness in EV passengers.

Are there solutions for motion sickness experienced in electric cars?

Yes, some electric vehicles (EVs) are introducing motion sickness relief modes that adjust acceleration and braking, and some use artificial engine sounds to help compensate for the lack of natural auditory cues.

Home / Technology / EV Silence Triggers Motion Sickness for Passengers

EV Silence Triggers Motion Sickness for Passengers

17 Feb

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Summary

EVs' quiet operation causes sensory mismatch leading to sickness.
Regenerative braking and instant torque can worsen passenger discomfort.
Solutions include driver control, artificial sounds, and specific driving modes.

EV Silence Triggers Motion Sickness for Passengers

Electric vehicles (EVs) are increasingly being associated with motion sickness among passengers, a phenomenon linked to their advanced engineering. The cathedral-like silence of EVs causes a sensory mismatch. Passengers' brains struggle as their eyes perceive motion, but their ears do not detect the expected engine noise or vibrations from acceleration and deceleration. This discrepancy is a primary cause of travel sickness.

Further exacerbating the issue are characteristics unique to EVs. Regenerative braking, which slows the vehicle upon lifting off the accelerator, can be abrupt and unexpected for passengers. Additionally, the immediate and linear torque delivery in EVs can make acceleration feel more abrupt than in traditional combustion engine cars, intensifying passenger discomfort.