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Traction control system – how does ASR help on slippery surfaces?

Many cars have a traction control system as standard equipment. It is especially helpful in the winter season, when it is easy to skid. How does this technology work on slippery roads?
Many cars have a traction control system as standard equipment. It is especially helpful in the winter season, when it is easy to skid. How does this technology work on slippery roads?
ASR — what is it and what is it for?

It's worth starting with a few words of explanation. ASR is a traction control system, a solution that supports safe driving. Its task is to prevent wheel slippage and ensure maximum traction even on icy roads. In addition to the name ASR (Anti-Slip Regulation) this technology is also known as TCS and DTC. The exact name depends on the manufacturer.
How does ASR work?

We already know what ASR is. The question is, how does this traction control work? It constantly monitors the rotation of the wheels and the speed of the vehicle. When ASR detects that the vehicle is losing traction, it reduces engine power. This is possible by momentarily limiting the fuel flow, which causes a reduction in torque on the drive wheels. The system can also activate the brakes on the appropriate axle. Such actions make the vehicle stop slipping and regain traction.
Construction of a traction control system

Now that you know what it is traction control system, it is worth knowing its most important elements. These are:
- speed sensors – they are placed at each wheel. They are responsible for monitoring how fast the vehicle is moving. These sensors are also used ABS system,
- intervention mechanism – is responsible for reducing engine power when the system detects a loss of traction,
- Control unit – analyzes the collected information. Compares the rotational speed of all wheels with the current driving parameters. When the car starts skidding, it activates the intervention mechanism.
Traction control system integrated with ABS and ESP
Modern cars use many technologies to increase driving safety. Some of them are interconnected. This is the case ASR system and ABS and ESP. These systems use the same sensors.
Integration car safety systems allows for even better management of vehicle traction and stability. This is especially important in extreme conditions – e.g. on icy roads.
How do I turn off the traction control system?

Traction control can be turned off, most often using the button marked ASR. It is usually located on the center console or near the steering wheel. Deactivating this technology can help, for example, get out of the snowdrift. It's also a good idea to turn it off if you plan to drive your sports car on a race track.
When is it not worth turning off ASR?

Of course, apart from riding on the track, in deep snow, mud or getting out of a snowdrift - it is better not to give up the ASR system. It provides a great deal of support and often reacts to skidding faster than the driver. You shouldn't turn it off even if you're confident in your skills. After all, it's about safety.
Does every car have traction control?
Now Traction control system is now standard. It can also be found in new vehicles from the lower price range. However, it must be remembered that there are also many cars on Polish roads that are a dozen or so years old, which do not necessarily have ASR technology built in. So if you want to buy an older car second-hand, check if it has any safety systems.
How does a traction control system affect driving safety?
Primarily ASR helps maintain vehicle stability. Prevents skidding on both icy and wet roads or even sandy surfaces. It also reduces the risk of losing traction when starting off quickly. It is especially useful on bends, reducing the chance of running off the road.
In addition, the traction control system is also helpful in emergency situations when the driver wants to avoid a collision. It helps maintain the stability of the car during sudden acceleration and cornering. It shortens the distance needed to regain traction and improves avoiding obstacles in difficult conditions.
What does the traction control light mean?

The traction control light usually represents a car that is skidding on the road. What does it mean when it lights up? First of all, when the traction control light is on - it means that the system is working and the car is having problems with traction. When the light flashes - ASR is currently reacting to the skidding.
What does it mean when the traction control light is constantly on?
When ASR light is on all the time, this can indicate various problems such as a fault in the system itself, low tire pressure, short circuit, software problems, ABS problems or a problem with the wheel speed sensors. What to do in such a situation? Of course, you can reset the system, you can check tire pressure and pump them up if necessary. Often, however, a visit to a mechanic will be necessary.
Traction control is a huge help for the driver. It is now used in every new car and even motorcycles. It is worth using it to ensure safe driving.