A car. Without an engine?! It might seem like black magic, but electric vehicles are here to stay. But, how do electric cars work?
Let’s go back to basics, it’s pretty easy once you know.
How do electric cars work?
An electric car is powered by an electric motor through a rechargeable battery, which then drives the wheels. They connect to charging stations and use electricity from the grid to charge the batteries.
How do electric cars work with controllers?
The electric vehicle controller, which controls the speed and acceleration of the vehicle, is a device that works between the battery and the motor. A controller can convert DC to AC for an AC motor, or simply regulate DC for a DC motor.
A controller in an electric vehicle is a device that controls the flow of electricity from the battery to the electric motor. It is the “brain” of the electric vehicle drive system. The controller tells the motor how much power to use and when.
It also monitors the battery and ensures that the EV does not drain more power than the battery can provide. Controllers are an essential part of the electric vehicle drive system and one of the most complex parts of the car. If it fails, the electric car cannot drive.
How do electric car motors work?
Electric vehicles take energy from batteries and convert it into electricity through electric motors. This energy is used to power the wheels. The electric motor produces more torque then most conventional petrol and diesel vehicles and eliminates the need for a conventional gearbox, sending power directly to the wheels for instant acceleration.
As an example, the MINI electric motor delivers 135 kW, corresponding to a maximum output of 184 hp. That means 200 lb-ft of torque at the front wheels and smooth 0-100 km/h acceleration in just 7.3 seconds.
Electric vehicle motors work by having one set of magnets or electromagnets mounted on a shaft and another set mounted on a housing surrounding the shaft. By periodically reversing the polarity of a set of electromagnets (swapping north and south poles), EV motors use these attractive and repulsive forces to spin a shaft, converting electrical energy into torque and ultimately driving the wheels.
This also works the opposite way with regenerative braking, these magnetic/electromagnetic forces can convert motion back into electrical energy.
