- In an electric car, an electric motor takes the place of the gasoline engine.
- The electric motor gets its power through a controller.
- The controller, in its turn, gets its power from rechargeable batteries.
An electric car has a DC controller which in turn is connected to the DC motor. When the accelerator is pressed, the controller takes the electric current produced by the rechargeable batteries and transfers about 95 percent of the electricity to the electric motor. But, when you keep the accelerator free, the controller does not provide electricity to the motor. Thus, the working of the controller is dependent on the amount of pressure provided on the pedal by the driver. The controller translates that pressure into electricity.
The accelerator pedal in an electric car is also different from that of gasoline cars. In an electric car, the pedal is attached to two potentiometers, which provide a signal to the controller as to how much power is to be delivered. When the pedal is pressed, a cable from the pedal attached to the potentiometers transfers signals to the controller. An electric car has two potentiometers and the controller operates when the signals received from both potentiometers are equal.
There are heavy cables that connect the controller and rechargeable batteries. The connected cables have a large on and off switch in the middle. When the pedal is pressed, the switch automatically turns on and generates electricity.
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