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The Influence of Car Electricity, Here are 6 Functions of Car Coils and How They Work

09 April 2025
fungsi koil mobil

The coil is one of the components found in a car. Fundamentally, the car coil plays an important role in converting electrical voltage so that the car can start. Not only that, there are still many functions of the car coil that you should know. To understand the functions and workings of the car coil component, read the following review.

1. Converting Low Electrical Voltage

One of the main functions of the coil is to convert electrical voltage into movement. Fundamentally, cars certainly have an ignition system to facilitate the car's performance. 

The existence of this system is what allows the car to start. The combustion process in the combustion chamber drives the fuel to actively start the engine.

Without this ignition system, it can be assured that the car will not be able to start. In the ignition system, electrical attraction is something that is very much needed. 

This is where the car coil becomes a very crucial component. This coil will later convert low voltage to high voltage to start the car.

Read Also: Causes of Total Car Electrical Failure and Their Solutions

2. The Function of the Ignition Coil as a Flame Regulator

As explained earlier, the car coil will be responsible for converting electrical pressure. Generally, the working method of the coil is to change the voltage from 12 Volts to 10,000 Volts. 

This relatively high electrical voltage allows all aspects of the car to be powered. With this process, the car engine can start and be controlled.

In addition to having the task of increasing electrical voltage, the car coil also has many functions that you must know. One of its functions is to regulate the ignition in the combustion chamber. 

The purpose of this flame regulation is to avoid excessive flame size so that the flame volume does not become too high or too low, in other words, it remains stable.

Basically, to start a car, a good ignition system is required according to automotive standards. 

A balanced spark is needed so that the engine can be stimulated and start. When the car's ignition is turned on, the ignition system and combustion chamber will immediately work to supply electricity to the entire engine.

From this, it can be concluded that the coil is a component that should not be forgotten. The significant role and function of the ignition coil make its maintenance very necessary. 

This is done to ensure that the ignition performance in the car engine is maintained. If any issues with the coil are found, immediately perform detection by visiting a service center.

3. As a Spark Generator

As mentioned earlier, the car coil has the function of generating spark flashes. A car certainly needs a spark to be started. 

With the coil, the flow of electrical voltage will be maximized. The coil will convert the voltage to 10,000 Volts so that the car can start.

To produce a spark, the coil certainly needs the help of other components. In this case, the spark plug is essential to generate the spark. 

Later, the spark plug and coil will work together to produce the spark. Thus, the flame will be created due to the friction between the coil and the spark plug.

4. The Working Method of the Coil in the Combustion Process

In addition to the functions mentioned above, the coil also plays a role in continuing the combustion process. As explained earlier, the coil can change low voltage to high voltage as a working method of the coil to start the engine. However, the car will not start just because the ignition system has occurred.

In the initial stage, combustion occurs in the motor part and then continues to the spark plug component which is supplied through high voltage cables. Then, the spark plug's working system will begin based on the increase in high voltage. 

This voltage is the result of the electrical supply process through the battery. Thus, the spark will be transmitted in the combustion chamber.

Through the stages or working methods that have been explained, the car engine can be stimulated and started. As a result, the car can be turned on and driven. 

However, remember to always maintain the condition of this car coil. If it experiences even a slight damage, the coil cannot deliver electrical voltage to start the car engine.

5. The Function of Ignition Switch

Inside a car coil, there are three windings made of iron core. The first winding is connected to the ignition key to supply voltage. The second winding functions as ground. 

The last winding is in the ignition coil switch. These windings serve the function of the ignition switch to start the car engine.

As explained in the review, the coil has a main function that determines the car's ignition. Without the coil, a car would be impossible to start. 

After understanding the uses and workings of the coil component, you can now understand how the car engine can start. What you need to do is always evaluate the components and maintain them. 

Read Also: Check Vehicles at the Car Electrical Workshop, What is Checked?

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