Holding pressure: Notes

When the filling pulse is concluded, the respective inlet valves close in order to prepare for individual modulation for each wheel.

For wheels which will not be braked with TCS modulation: Pressure holding will occur by closing the pressure increase and pressure relief valves at each circuit and closing the inlet and outlet valves at each wheel. This is to prepare for possible application of the brakes.

Fig 1: Pressure Build-Up On Both Front Wheels - Phase 1 (Holding Pressure)

Courtesy of SAAB-SCANIA OF AMERICA, INC.