Traction Control System

Traction Control System (TCS) prevents wheel slip by controlling (applying) brake fluid pressure to the drive wheels to adjust driving torque according to road conditions. If the throttle is opened excessively when a vehicle is started or accelerated, the driving wheels may slip due to excessive drive torque. This adversely affects startability, accelerating ability or controllability. To ensure startability, accelerating ability and controllability, each wheel speed sensor detects wheel speed and converts it to an electric signal. TCS ECU determines which wheel begins to slip by monitoring wheel speed sensor signal. If the TCS ECU determines wheel slip, it activates solenoid valves and pump inside the hydraulic unit to prevent the wheel slip. Ensuring controllability by applying brake. TCS is controlled by the TCS ECU. TCS shares some components with the ABS system.