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What is a Traction Control System in Cars and Why is it Used?

traction control systems in cars

A car has many underlying safety systems that you may not always notice. But without these, your car will run with a lot of risks. One such system is the traction control system. Traction, grip, and stability are a few of the things that add to a safe driving experience.

Find more about car traction control systems and their relevant details here.

Table of Contents

What is Traction Control System?
When was Traction Control Introduced?
How Does Traction Control Work?
Why are Traction Control Systems Used?
Functions of the TCS Light
What are TCS Light Indicators?
Advantages of Traction Control System
Enable and Disable Traction Control System
When to Engage Traction Control?
When to Turn Off Traction Control?
Frequently Asked Questions

What is Traction Control System?

Traction Control System is an electronic safety feature in a car. It identifies if there is a loss of traction among the car wheels. Upon identification of that particular wheel, it applies the brake or cuts down the power supply from the engine to that wheel.

This automatic system utilises similar sensors as the anti-lock braking system or ABS. If a wheel loses its grip, it is no longer in contact with the road. It can lead to accidents and other dangerous situations.

When was Traction Control Introduced?

A traction control system was introduced way back in the 1970s in passenger cars. However, these early systems weren't that reliable or widespread due to technological limitations. It was the late 1980s or early 1990s when this system became more sophisticated and conventional.

The system that you get to see in cars nowadays is a result of the gradual and increased use of complex electronic systems in cars.

How Does Traction Control Work?

A traction control system aims to identify when a tyre loses its grip or lifts up from the road surface. Upon identifying the wheel, the ABS detector cuts down the power supply from the engine momentarily and intends to slow down the spinning rate of that wheel to regain traction.

A TCS can be fitted to a front-wheel drive, rear-wheel drive or all-wheel drive vehicle, and it will work similarly. So, it doesn't matter which wheels are active; a TCS will detect if a wheel loses road contact and do the needful to regain friction.

Why are Traction Control Systems Used In Cars?

The traction control system is a safety feature. This is the only reason why it is used in cars. To elaborate, TCS is used in cars because traction isn't always available. This feature helps drivers to avoid hydroplaning or slipping off the road.

In muddy or slippery road conditions, losing grip or spinning off the road is common. Even the most experienced drivers might find it difficult to handle such situations. This is why cars need to have a traction control system.

What is the Function of the Traction Control System Light?

You can find the yellow coloured TCS light on the dashboard. This light may come on at times. So, what does it mean when the light comes on?

Here are the 5 most common causes why the TCS light might appear on the dashboard:

ABS control unit failure
ABS sensor failure
Issues in the ABS/magnetic ring
Water filtering into the ABS sensor connectors
Issues in the wiring to the ABS sensors

What Are The Traction Control System Light Indicators?

Here are the three types of TCS light indicators and their causes:

Constantly on

If the TCS light is constantly on, along with the ABS indicator, it means something is not right in your traction control system. You can read the codes in the ABS control unit or have your mechanic take a look.

With an OFF sign underneath

This means that your TCS is off. You can manually turn the TCS on and off with a button inside your car. If you cannot find the button, go through the manual given to spot the button.

Starts flashing as soon as acceleration begins

TCS light flashing indicates that the road surface is lacking friction. This usually happens when the road is muddy, slippery, or icy. However, if this scenario occurs when your car slows down, or the road offers enough friction, there might be some issue with your car's ABS (anti-lock braking system).

What are the Advantages of Traction Control System?

A traction control system offers several advantages, mostly related to safety. Take a look at some of the most beneficial factors:

Enhanced cornering control with traction control

TCS aids in maintaining control around the corners. While cornering, if the speed of the wheels does not match the overall acceleration of the car, TCS turns on. Hence, the balance is of utmost importance. If you apply more throttle, without TCS, the wheels may slide.

Slippage management & safety

In some vehicles, TCS can manage the spinning of wheels by limiting or cutting off the power supply to that wheel momentarily. It can be done in three ways – closing the throttle, reducing the fuel supply to the cylinders, or changing the ignition timing.

Enhanced fuel economy

The traction control system reduces the spinning of wheels unnecessarily. This, in turn, results in reduced fuel usage and emission. Also, this active safety feature gives you more control over your car.

How to Enable and Disable Traction Control System in Car?

A traction control system is usually always on in all types of vehicles. However, there might be some cases where you need to turn off the TCS in your car. A car should have a switch or button with wavy lines underneath. You need to press this button to turn off the traction control in your car. This sign and its placement will vary from one manufacturer to another.

However, turning off only partially disengages the traction control system. The stability control unit will still be active.

When to Engage Traction Control?

Traction control in cars turns on automatically when you turn on your car. Hence, the system engages itself as and when required. This system is most helpful when the wheels skid, hydroplane, slip, or spin out of control. Hence, it can be useful if you are accelerating from a halted position or trying to accelerate over slippery terrain.

When to Turn Off Traction Control?

It is best to drive with the TCS turned on. But there are scenarios where you must turn off the system to get out of the situation.

Turn off the traction control if your car is stuck in mud or snow. If you keep the system on, it could cut off the power supply to the wheels, making coming out of the situation difficult.

Another scenario when you should turn off the TCS is if you are running up a snowy and steep hill. On an incline, losing power off the wheels can create a dangerous situation. Instead, you should disable TCS and drive up the hill slowly.

The traction control system is an active safety feature in a car and turns on when you turn on the car. However, you might need to turn off TCS in some situations to get more control. If you notice the TCS light flashing and cannot figure out what you need to do, get help from a mechanic.

FAQ's about Traction Control Systems in Cars

All

Does traction control use more fuel?

No, traction control actually reduces fuel use. The system aims to turn off unnecessarily spinning wheels by cutting off the power supply to that wheel. This results in higher fuel economy and low emissions.

What are the different types of traction control systems?

There are 3 types of traction control systems – brake traction, tyre traction, and anti-lock brake.

When was traction control introduced in India?

Traction Control System was first introduced to India in 1999 by Mercedes-Benz. They brought TCS into India by including Electronic Stability Programme (ESP) across their passenger vehicles.

What is the purpose of traction control in cars?

The primary function of the traction control system in cars is to enhance stability and control while accelerating on slippery surfaces with unstable terrain. It does this by preventing the wheels from spinning too much so that they lose grip on the ground.

Does traction control affect mileage?

Traction control has negligible effects on the fuel efficiency of vehicles. It is seldom employed, and even when it is, it does not influence your gasoline.

What happens if you turn off the traction control?

Disabling traction control means you get to set the level of wheel slippage by yourself instead of the car doing it for you. Disabling the traction control also compromises how any car will respond to commands given by the driver, especially during any snow. If you need to drive on slippery roads with TCS off for a long distance, you also need to drive slower to prevent getting too much wear on the brake pads.

Should I enable traction control?

Traction control should remain active even when the environment is not threatening or challenging. It is set to on by default as soon as you start your car. Overall, there is significant safety brought about by having one’s TCS on more often than not when driving; you can set it to be on at least 99% of the time.

What is the difference between ABS and traction control?

Anti-lock Braking Systems (ABS) and Traction Control Systems (TCS) are safety elements that allow a vehicle better control. The main difference is that ABS focuses on braking and prevents wheels from locking when hard on the brakes while allowing the driver to maintain control of the steering wheel. The TCS is active during acceleration to control the speed of the wheels and prevent slippage, especially in poor road conditions.

When to turn on the traction control?

Traction control is best utilised when a vehicle is at a complete stop, moving slowly, or attempting to accelerate a car up a frozen incline. This aspect gives drivers so many benefits in driving, influencing smooth driving and enabling the driver to manage the vehicle, especially during bad weather like ice or rainy conditions.

Should traction control be on or off in the rain?

Traction control is handy in preventing your tyres from spinning, and one can rely on it mostly during rainy weather and while in the steep hills. This is because, whereas almost all today’s new cars come equipped with ABS or anti-lock braking systems, traction control is arguably the most useful safety gadget for rainy weather.

Is a car faster with or without traction control?

The ability to adjust the driving torque and cutting power automatically to the slipping wheel allows the car to accelerate faster in some instances, such as in wet or icy conditions or after exiting a corner. However, in racing, disabling the traction control system is usually helpful for gaining more speed in each lap.

Where is the traction control sensor located?

Traction control is typically located under the hood inside the ABS control module.

What are the problems with traction control?

Some of the difficulties that the traction control system faces include problems with the sensors, problems with the difference in the wheel speed, problems with the anti-lock system, and problems detecting wheel slip. However, the above challenges should be addressed as soon as possible to allow maximum achievement and precautionary measures on the roads.