Traction control has been a mandatory feature on all new cars sold in the U.S. since 2012, along with antilock brakes and stability control. However, many car buyers may not fully understand what traction control does and how it operates. Traction control is essentially an electronic system that monitors wheel speed and reduces power to regain traction when necessary.
While different automakers may use varying brand names for traction control, the basic function remains the same. Each wheel is equipped with a speed sensor that communicates with the main computer. In situations where traction is lost, such as on wet or slippery surfaces, the computer identifies the problem wheel and either reduces power or applies braking to regain control.
In the past, traction control systems would cut power to all wheels, resulting in a jerky driving experience. As technology advanced, individual wheel control became more refined, leading to smoother operation. Nowadays, most drivers may not even notice when traction control is activated.
What is the purpose of a traction control system?
Traction control systems offer various benefits depending on the application. In off-road settings, the system ensures maximum traction and power when climbing steep terrain. Hill descent control, a related feature, applies individual wheel braking to maintain control during descents. Some vehicles also provide specific traction control settings for different road conditions through driving modes.
In performance vehicles, traction control aids in reducing lap times by allowing for earlier power application out of corners. In drag racing, it is known as launch control and optimizes power delivery for the conditions. Professional motorsports typically ban traction control due to its advantages over driver skill.
Is it advisable to disable traction control?
While traction control is usually active for safety reasons, there are circumstances where disabling it may be beneficial. In low-traction scenarios, spinning the wheels can help gain traction on a harder surface or escape a stuck situation. Most vehicles allow traction control deactivation by pressing a button typically featuring a car with squiggly lines representing tire slip. Consult the owner’s manual for specific instructions.
Understanding Stability Control
Stability control is a more advanced system compared to traction control. It incorporates traction control data along with speed, steering angle, and other inputs to keep the vehicle stable on its intended path. According to the National Highway Traffic Safety Administration (NHTSA), the implementation of traction and stability control systems has resulted in approximately 7,000 lives saved in the first five years.
Overall, traction control plays a crucial role in enhancing road safety. While it may not prevent all accidents, it provides an added layer of security for drivers. Following safety guidelines and utilizing traction control can greatly reduce the risk of accidents on the road.
