SAFARI

ANTI-LOCK BRAKES

ABS

Pressure increase Phase

As the wheel speed increases and goes beyond the

reference speed, the ECU closes the outlet valve

and opens the inlet valve to increase the pressure

in small steps. (Refer Fig. 8)

This pressure increase is achieved by ECU through

interrupting electricity to both inlet & outlet solenoid

valves. In this position, inlet valve is open & outlet

valve remains closed. With this, the brake fluid from

the master cylinder enters the wheel cylinder &

increases the brake pressure for that wheel.

Solenoid valve

Electricity status

Valve open-close

Open-close channel

INLET

OFF

OPEN

Master cylinder-Wheel cylinder

OUTLET

OFF

Wheel cylinder-reservoir

Fig. 8

(Open)