What are the components of the ABS system?

[LeKeegan]

ABS system mainly consists of 4 components: wheel speed sensor, electronic control unit ECU, hydraulic unit, and ABS warning light. Wheel speed sensor: Detects the motion state of the wheels, emits sinusoidal electronic pulse AC signals, which are then processed by the modulator to convert the pulses into digital signals and transmit them to the electronic control unit. Electronic central control unit ECU: Receives input signals from the wheel speed sensors, calculates the wheel speed, vehicle speed, and slip ratio based on these parameters, determines the wheel state according to the slip ratio, and issues control commands to the hydraulic unit. Hydraulic unit: Adjusts the pressure of the brake pipeline according to the control commands, including processes such as pressure holding, pressure increasing, and pressure decreasing. ABS warning light: Used to alert the driver whether the system is malfunctioning. Functions of ABS: Maximize the efficiency of the brake, shorten braking time and distance; effectively prevent vehicle sideslip and fishtailing during emergency braking, ensuring good driving stability; allow steering during emergency braking, ensuring good steering maneuverability; avoid severe friction between tires and the ground, reducing tire wear.