Anti-lock Brake System (ABS)

Front

Anti-lock brake system (ABS) is an electronic safety system.

Back

It uses information from sensors to control the hydraulic action of the brakes and prevents the wheels from locking.

Front

ABS system layout components

Back

Includes hydraulic control unit, ABS electronic control unit (ECU), wheel speed sensors, and brake light sensor.

Front

ABS electronic and hydraulic components

Back

The ABS ECU processes information from sensors to control hydraulic and electronic actuators.

Front

Wheel speed sensors function

Back

Measures the speed of rotation of each wheel using Hall Effect or inductive sensors.

Front

Inductive wheel speed sensor operation

Back

The tone wheel cuts the magnetic field of the speed sensor, producing an AC voltage that changes with wheel speed.

Front

ABS ECU functions

Back

Processes wheel speed signals, Calculates control signals, Drives solenoid valves, Detects ABS system faults

Front

ABS Warning Lamp purpose

Back

Used to warn the driver if the ABS system is not functioning correctly.

Front

Voltage relays in ABS

Back

Deliver reliable and constant voltage to electronic components.

Front

Device reading signals from wheel sensors

Back

The ABS ECU reads signals from the wheel sensors.

Front

Hydraulic Control Unit (HCU) function

Back

Contains solenoid-operated valves controlled by the ABS ECU to control hydraulic pressure.