Advanced Braking

TCS Overriding ESC

(at the driven axle only) Here, ESP intervention is overridden by the TCS logic, which means that the lesser of two requested brake pressures is adjusted at the wheel. However, unlike pure TCS intervention this type of intervention uses the ESP pressure modulator.

The reason for this is that the hydraulic system is ‘detuned’ by the precharging pump, which is always active during an ESP intervention.

ESP Overriding ABS

If an ABS intervention appears to be necessary while an EPS control cycle is in progress, the ABS logic is overridden by ESP. As the ESP system causes a wheel to slip up to 50% in order to stabilize the vehicle, the resulting wheel sensor signals would confuse the ABS logic (outside the ABS working range).