TC – Traction Control


Traction Control System is where power to the driving wheels is reduced in the event of wheel spin. Unlike limited slip differential, where power is transferred to the opposite wheel that is not slipping, TC reduces overall power to the driving wheels. Effectively slowing the car down to reduce wheelspin. Of course, like most things on a Formula One car, this is all electronically controlled.

The main aim of TC tuning is to use only enough TC to stop wheel spin and drifting. No more, no less. This has the added benefit of preserving tire wear, but not sacrificing too much power.

Because TC in Formula 1 works by cutting fuel during wheel spin (that's mean reducing power output of the engine), always is recommended to use Limited Slip Differential settings first to try to stop wheel spin by transferring power to other wheel with good grip. If that phase is not successful and spin can't be stopped in this way, traction control should take over.
Finding the right TC figure for a F1 car on new track, is a bit of a trial and error effort on track or on simulators. On well known track, F1 engineers use data from previous events, and only a slight adjustment is needed if track condition change. They want to reach a point where the car is not loosing its rear end around slower corners, while still keeping the TC value as low as possible to get the most power to the road. Before 2008, during the start, TC was forbidden in F1 by FIA rules. From this year (2008) traction control is forbidden completely by same rules.
Remember, the aim of tuning race cars is to make it as fast as possible, not slow it down with TC. Let the driver do that.

In modern days, with sophisticated ECU control, engine manufacturer are trying to accomplish similar result as TC with engine torque mappings. The engine torque map is a theoretical model of the engine. It represents the torque output of the engine for a given engine throttle position and engine speed. As well as ensuring the engine behaves as it should, the map is also used to improve the driveability of the car for the driver.



9.3 Traction control :
No car may be equipped with a system or device which is capable of preventing the driven wheels from spinning under power or of compensating for excessive throttle demand by the driver.
Any device or system which notifies the driver of the onset of wheel spin is not permitted.


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Books to read

Some useful links:

- f1technical.net, a great site with a lot of technical information’s and explanations. Site is updated daily with news from F1 word.

 - autosport.com, This site is a legend. A bible for racing lovers. News from all around the word. Unfortunately, to get access to all news, interviews and to open the site completely you should be subscribed to Autosport magazine. Anyway, great read.

James Allen on F1
- JA.F1 site (or blog) ovned by ITV Sport’s lead commentator on Formula 1 James Allen

Joe Saward blog
- joesaward is the Joe Saward official blog about Formula 1 world. Joe is an journalist, who write primarily about politics in and around motorsport, specifically on the FIA Formula 1 World Championship

Vital F1
 - vitalf1.com/ is another great site for Motor Sports fan’s like me. Site is relatively new, but great fun, with great discussion forum, Formula 1 news and forum.

 GP update
- f1.gpupdate.net, Site with fresh news from Formula 1

Planet F1
 - planetf1, another site with many different articles, news and statistics. Biased toward British teams, but anyway good read.

Gurney flap
 - gurneyflap.com, Great history site. You can learn a lot from this site. Pictures, cars and many many more. Great.

4ormula1 is a database of Formula 1 history and statistics of drivers, teams, grand prix, and all results since 1950

Racecar engineering
-Racecar Engineering, an online magazine with a lot to learn from, a lot of technical information’s and explanations

 - fia.com, La Fédération Internationale de l'Automobile, representing the interests of motoring organisations and motor car users. Head organisation and ruler in auto sport.

 - wikipedia.org, I don’t believe that I have to tell you anything about this site. It’s not about Formula 1 technology, but you can learn a lot about that too.

Sutton Images

grandprix photo

 - carbibles.com, a great site for normal car users. Here you can find explanations of almost everything about your car and how it works. Technical reviews and explanations of some in-car gadgets.

Dare To Be Different
- Daretobedifferent.org Susie Wolff and UK governing body of UK motorsport have joined forces to launch Dare To Be Different, a high-profile new initiative which is about increasing female participation, not just on the track but in all aspects of the sport.