Anti-slip system (Opel Insignia A)

When slippage of the drive wheels is detected, the electronic brake control unit switches on the anti-slip system mode.

Using wheel speed sensors, the electronic unit monitors the speed of rotation of the wheels during acceleration of the car. If a sharp increase in the speed of rotation of the drive wheel is detected (loss of traction and slippage occurs), the electronic control unit takes measures to reduce traction and/or brake the wheel that has slipped. To reduce traction, the engine control unit reduces the torque supplied to the drive wheels, simultaneously sending a corresponding signal to the electronic brake control unit.

If the torque reduction does not produce the desired effect, and also to increase the torque on the opposite wheel relative to the differential, the wheel that has lost traction is briefly braked. In this case, the system partially uses the same mechanisms as the anti-lock system.

The traction control system can be manually switched off or on by pressing the corresponding switch.

[Material copied from this website OPELBOOK]