Hydraulic Diagram Of Hba - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

8E2-17

(3) Hydraulic Diagram of HBA

Low pressure
chamber
Shuttle valve
Outlet valve
Separation valve
Inlet valve
Pump
Rear wheel
Outlet valve
Inlet valve
Front wheel
Y220_8E2020
The above figure shows one front and one rear wheel and the same hydraulic circuit forms as in the ESP operation.
When HECU recognizes that it is an emergency and it is required for hard braking, depending on the pressure value of
the brake pressure sensor and pressure changes caused by the pressure sensor timing, it operates the pump immedi-
ately to apply the brake pressure at the wheels.
Then, the pressure in the pump increases until just before the corresponding wheel gets locked. The motor still keeps
rotating and the outlet valve and the separation valve are will stay closed. When the wheel starts to lock, the HBA
function cancels and switches to ABS operation.
ESP SYSTEM
CHANGED BY
REXTON SM - 2004.4 EFFECTIVE DATE
AFFECTED VIN