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ANTI LOCK BRAKING SYSTEM (ABS)
5
ANTI-LOCK
BRAKING
SYSTEM (ABS)
6.2.1.4 SCHEMATIC OF HYDRAULIC CIRCUIT
GENERAL
The Anti lock braking system consists of a Hydraulic
modulator with integrated Electronic control unit, four
wheel speed sensors
(One located at each wheel)
and 2 warning lamps in the instrument cluster
(1(yellow) for ABS and 1(Red) for EBD).
The brake
pipes are connected to the brakes through the ABS
ECU / HCU. They make two independent circuits
which are vertically split. The primary circuit
connects the Front Left and the Front Right brake
while the secondary connects Rear Right and Rear
Left brake through connectors. Internal to the
Hydraulic modulator each brake has a pair of
solenoid valves, one inlet and one outlet; these are
activated by the ECU to control the brake pressure of
individual wheels.