Ecu (Electronic Control Unit); Hu (Hydraulic Unit); Motor; Wheel Speed Sensor - SSANGYONG Korando 2013 Manual

4WD - Front/Rear wheel speed
sensor
2WD - Front wheel speed sensor
2WD - Rear wheel speed sensor
▶
HECU
1.

ECU (Electronic Control Unit)

ECU calculates the wheel speed, acceleration and
deceleration with the information from wheel
speed sensor, and determines the wheel slip to
control the valve and motor.
2.

HU (Hydraulic Unit)

The hydraulic circuit contains the primary circuit
and secondary circuit for ABS operation. This unit
controls the hydraulic pressure to each wheel. If
the system needs ABS operation, the valves in
the unit operate to control HOLD, RISE and
DUMP according to ECU control logic.
3.

Motor

The motor is operated when ABS is activated. The
cam-shaped output shaft of the motor enables the
brake system to receive and supply the brake fluid
during the motor operation.
▶

Wheel speed sensor

Wheel speed sensor sends the data detected by
tone wheel to HECU.
Rear wheel speed sensor in 2WD vehicle is
different from that in 4WD vehicle.
Location of rear tone wheel (A) and wheel
sensor (B) in 2WD vehicle
11-7
4890-00