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2. System Structure
Including:
Electronic Control Unit
The sensor will calculate the speed and acceleration/deceleration
of four wheels and judge the skid status of the wheels and
therefore drive the electromagnetic valve and motor, control the
pressure increment and pressure reduction, maintain the status,
and etc.
Hydraulic Unit
The basic hydraulic circuit is comprised of the 1
st
circuit and the
2
nd
circuit that is active only when the ABS is functioning and is
the integral part that controls the hydraulic parts transmitted to
various wheels.
Depending on the transmitted signal output of the sensor, the
ECU performs the calculation and judges the skid status to
determine if it’s necessary to run the ABS. Therefore, depending
on the control procedure of the ECU, the electromagnetic valve
and the motor will be started to control the pressure increment
and pressure reduction, maintain the status, and etc.
Sensor
In order to make the ECU to calculate the speed and acceleration/
deceleration of the four wheels, it always transmits the revolution
measurement of the gear ring to the ECU.
Motor
When the ABS is functioning, the motor will rotate following the
ECU signal and convert the rotation movement into linear
reciprocated movement via the bearing to circulate the brake oil.
Motor