What is ABS on a car?

[Helen]

ABS on a car stands for Anti-lock Braking System. During braking, ABS automatically controls the braking force to prevent the wheels from locking up, keeping them in a rolling-sliding state to maintain maximum traction between the tires and the road. When braking, ABS quickly detects wheel lock-up based on speed signals from each wheel speed sensor, then closes the normally open input solenoid valve for the locking wheel to maintain consistent braking force. If the ABS warning light on the dashboard illuminates during normal driving, it indicates a malfunction in the ABS system, meaning the ABS is not functioning properly.