Electric vehicles are still fervor speaking, a new and new market. What is the different between gasoline driven vehicles and electric vehicle working? The power source, gasoline driven vehicles depend on fuel but in electric vehicles depend on electricity. The control system, driven vehicles use carburetor to modulate power but in electric vehicle use DC motor controller to control the current. Motive power generates in different theory, gasoline is an engine and electric vehicle is motor. And the most important, electric vehicles reduce dependency on hydrocarbon fuels and that is great for the environment.
Electric vehicles provide “motive power” in a different way; they utilize large battery pack as the source of power, controlled by a DC motor controller to modulate power base throttle input, and an electric traction motor
Let’s talk about original equipment designs for electric cars such as industrial equipment, golf cars, or boats. We also introduce how safety devices are designed to protect system.
We will discuss each component and safety device for a more reliable and safe design.
BATTERY is the power of the electric vehicles. We usually use lead acid battery in electric vehicle.
FUSE is a type of overcurrent protection device. When too much current flows during through a wire, it may overheat and be damaged. Fuse interrupts battery powera short circuit situation.
CONTACTOR is an electro-magnetic switching device for remotely switching a power or control circuit. A contactor is activated a lower voltage / current than contactor isswitching. Contactor controls by the throttle switch. If the motor, controller fails, thecontactor disconnects the battery current.
CONTROLLER is the most important part in electric vehicle. In electric vehicle, motor controller modulates power to motor. Different applications call for different needs. A big controller is on heavy industry. So how to choose the correct controller is very important.
MOTORS convert electrical power into mechanical energy. There are various motors designed for specific applications such as speed, torque. The wire gauges, brush size, motor casing thickness, armature size and hp ratings is determined by its application. In electric vehicle, we usually use separately excited motor, series motor and permanent magnet motor in different application.