What does the anti-lock braking system mean?

[IrisFitz]

Anti-lock braking system, abbreviated as ABS, stands for Anti-lock Braking System or Anti-skid Braking System in English. This system automatically adjusts the braking force on the wheels during braking to prevent wheel lock-up and achieve optimal braking performance. Below are detailed explanations: 1. Working Principle: The anti-lock braking system automatically controls the magnitude of the braking force during vehicle braking, ensuring that the wheels do not lock up and maintain a state of rolling and sliding (with a slip ratio of about 20%), thereby maximizing the adhesion between the wheels and the ground. ABS controls the pressure in the brake lines acting on the wheel brake cylinders, preventing the wheels from locking up during emergency braking, thus maintaining good directional stability of the vehicle even under hard braking. 2. Advantages: In vehicles not equipped with ABS, braking on snowy surfaces can easily cause the vehicle to lose directional stability; meanwhile, the driver must use a hydraulic modulator (also known as an actuator) to stop the vehicle. Conversely, in vehicles equipped with ABS, the system automatically sends control commands to the hydraulic modulator, enabling faster, more accurate, and more effective braking control.