What is the function of the ABS system?

[VanLucia]

ABS system functions include: Maximizing the effectiveness of the brakes, reducing braking time and distance; effectively preventing vehicle skidding and fishtailing during emergency braking, ensuring excellent driving stability; allowing steering during emergency braking, providing good steering control; avoiding intense friction between tires and the ground, reducing tire wear. During braking, the ABS system rapidly determines the wheel lock-up state based on speed signals from each wheel speed sensor, closing the normally open input solenoid valve for the wheel that begins to lock up to maintain constant braking force. If the wheel continues to lock up, the normally closed output solenoid valve is opened, causing the braking pressure on that wheel to rapidly decrease due to the direct connection to the brake fluid reservoir, preventing complete wheel lock-up from excessive braking force. This keeps the braking state at the optimal point (slip rate S of 20%), achieving the best braking effect and maximum driving safety.