Under what circumstances does ABS activate?

[DelBrayden]

ABS can keep the wheels in a state of rolling and sliding during emergency braking, which means applying intermittent braking to the wheels. Generally, ABS activates under the following circumstances: 1. During vehicle braking, it automatically controls the braking force to prevent wheel lock-up, keeping the wheels in a rolling and sliding state to ensure maximum traction between the wheels and the road surface. 2. After the vehicle decelerates, once the ABS computer detects that the wheel lock-up state has disappeared, it will close the main control valve, allowing the vehicle system to operate under normal braking conditions.