The role of TCS system

The function of traction control system (TCS) is to make the car get the best traction under various driving conditions. When a car is running, it needs driving force to accelerate and lateral force to turn. These two forces come from the friction between tire and ground, but the friction between tire and ground has a maximum value. On the flat road with small friction coefficient, the driving force and lateral force of the car are very small. If you keep stepping on the accelerator in order to get more driving force, so that the driving force exceeds the maximum friction between the tire and the ground, that is, adhesion, this will not only fail to get the expected driving force, but also affect the driving stability of the car. When the car turns, if the throttle is too wide, the driving wheels will slip. So what will happen to the steering of the car at this time? If the front wheel of a front-wheel drive car slips, the car will have understeer, that is, the car deviates from the steering arc and runs outside the steering arc. When the rear wheel of a rear-wheel drive car slips, the car will oversteer, that is, the car will deviate from the steering arc and run into the steering arc, and in severe cases, the car will rotate. Therefore, on the ice and snow road, in order to prevent the automobile driving wheel from slipping, the throttle must be carefully controlled.

The function of traction control system is to automatically control the driving force when the car accelerates, so as to keep the tire slip within a reasonable range, thus maintaining the stability of the car. This is similar to the function of anti-lock braking system. The function of anti-lock braking system is to prevent the tire from locking and improve the driving stability when braking.

When TCS is in use, the gearbox will keep high gear, and sudden downshift will be avoided when the throttle is increased to avoid more serious slippage. The biggest feature of TCS is to use the existing ABS system computer, speed sensor, control engine and gearbox computer. Even if the spare tire is replaced, TCS can be applied accurately.

Traction Control System (TCS) is a kind of anti-skid control system, which judges whether the driving wheel slips according to the number of revolutions of the driving wheel and the number of revolutions of the driving wheel, and then suppresses the speed of the driving wheel when the former is greater than the latter. When a car brakes on a smooth road, the wheels will slip and even the direction will be out of control. Similarly, when auto start or sudden acceleration occurs, the driving wheels may slip, and there will be a danger that the direction will be out of control on smooth roads such as ice and snow.