Traction Control allows maximum traction under acceleration without spinning the wheels. It is implemented with an electronic limited-slip differential and other computerized controls of the engine and transmission.
- Whenever a tire is given more torque than it can transfer to the road, the tire will lose traction and spins. This usually occurs during the acceleration.
- To prevent unwanted wheelspin, some vehicles with ABS also have a TCS. When a wheel is about to spin, the traction control system applies the brake at that wheel. This slows the wheel until the chance of wheel spin has passed.
- The antilock-braking system and traction control system, share many parts. The wheel-speed sensors report wheel speed to the ABS/TCS control module. When a wheel slows quickly, that it is about to skid, the ABS holds or releases the brake pressure at the wheel. If wheel speed increases quickly that the wheel is about to spin, the TCS applies the brake at that wheel. This slows the wheel and prevents whee spin.
- The traction control system has the capability to reduce engine speed and torque if braking alone does not prevent wheelspin. When this is necessary the ABS/TCS module signals the engine control model and retards the spark and reduces fuel amount by the fuel injectors