Why does the car still not stop when ABS intervenes during braking?
2 Answers
When the car's wheels enter a locked state, the ABS will intervene. The reason why the car still doesn't stop when ABS intervenes during braking is that the tires are not locked. Here is more information about the ABS system: 1. The ABS system, or Anti-lock Braking System, intervenes to prevent wheel lock-up. Its function is to control the braking force when the car is braking, preventing the wheels from locking and keeping them in a state of simultaneous rolling and sliding. This ensures optimal adhesion between the wheels and the road surface. 2. The ABS system can be divided into four types: four-channel, three-channel, two-channel, and one-channel. The four-channel ABS has four wheel speed sensors and operates independently. If the adhesion area between the wheels and the road surface varies significantly, the braking force generated during braking will also differ greatly. The three-channel ABS independently controls the two front wheels, known as hybrid control. The two-channel ABS has a relatively limited application and is less commonly used in cars today. The one-channel ABS, often referred to as single-channel ABS, is a type of rear-wheel brake ABS. It enables the car to fully utilize braking effectiveness, reducing braking time and distance, effectively preventing the car from skidding, ensuring stability, allowing steering during braking, and maintaining good handling of the car.
I've been driving for over ten years and have experienced a few instances where the braking distance felt longer after the ABS activated. When the ABS system is functioning normally, it rapidly pulses the brakes to prevent wheel lock-up, causing the brake pedal to vibrate intensely, but the vehicle's deceleration might not be as immediate as with traditional locked-wheel braking. Especially on gravel or snow-covered roads, if the wheels don't fully lock, they can't create a wedge-shaped resistance, making it feel like the car isn't stopping effectively. However, the biggest advantage of ABS is that it allows you to maintain steering control during hard braking, which is crucial for avoiding obstacles. If you consistently notice significantly reduced braking force during emergency stops, it's advisable to check your tire wear. Worn-out tires with poor grip can exacerbate this issue.
