Why Do Electric Cars Accelerate So Fast?

[JulietteDella]

Electric cars accelerate quickly for the following reasons: 1. High starting torque of electric motors: For an electric motor, the greater the input current, the stronger the output torque. At the moment the motor starts, its rotational speed is zero, and the voltage applied to the motor and the current flowing through it are at their maximum. As the motor's speed increases, the reverse induced electromotive force within the motor also rises, leading to a decrease in the system's voltage and current, which in turn reduces the output torque. 2. Easier modularization of electric motors: Two 50kw motors are equivalent to one 100kw motor, and due to their smaller size, they offer greater flexibility in placement. Therefore, many vehicle models enhance power by adding more motors. Additionally, electric motors have a strong adaptability to speed variations. Even if the current suddenly drops, vehicles driven by multiple motors will not experience wheel slippage or mechanical shocks. However, if a car uses one engine per axle (front and rear), it requires highly precise matching of the rotational speeds between the axles.