Brake Operation

Fig 1: AHB System Operation Diagram - Brake Operation

Courtesy of KIA MOTORS AMERICA, INC.

Apply Mode : During normal braking, IN valve becomes ON and opens; then, the high pressure generated by PSU is supplied to a caliper on each wheel by IBAU and the brake operation is engaged.

NOTE:

Level of brake force is decided by the pedal simulator with conducting measurement of the pedal stroke sensor. Release Mode : During discharging brake, OUT valve opens and IN valve closes; then, the high pressure of brake oil return back to PSU. At this time, CUT valve is ON and it prevents back flow of brake oil to IBAU.