Wheel Speed Sensor; Active Wheel Sensor; Function Of Active Wheel Sensor - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

Specifications
Item
Supplying voltage
Air gap
Output current(vehicle speed: at 2.75 km/h)
Tightening torque
ABS
REXTON SM - 2004.4
Y220_8E1024
Y220_8E1025
Permanent
magnet
Sensor filament
Y220_8E1026
7mA (Lo) ~ 14mA (Hi) +20 % / -16 %

WHEEL SPEED SENSOR

Active Wheel Sensor

- Measuring bridge with four resisters
- Measuring the current
- Supplying the voltage (12 V)
- Amplifier/comparison measuring device

Function of Active Wheel Sensor

The speed sensor used in traditional ABS is made of perma-
nent magnet and transmits the output voltage that changes
as the wheel rotor rotates to the HECU system. New wheel
speed sensor detects the wheel speed through the current
value that depends on the resistance that changes according
to the magnetic field by using four resisters and supplying the
12 V power supply to the sensor.
The system uses the wheatstone bridge that detects and
compares the changes in each resistance value. Before passing
through the comparison measuring device, the sine wave cur-
rent is obtained. But, after passing through it, a square wave,
that is recognized by ECU, will be generated.
Specifications
DC 12V
Front: 0.335 ~ 0.945 mm
Rear: 0.309 ~ 0.958 mm
Front: 19 ~ 25 Nm
Rear: 6 ~ 10 Nm
8E1-17
Reference
Cannot measure the air gap
7.5 ~ 20 V
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN