[Car Knowledge] ABS Anti-lock Braking System Principles and Driving Misconceptions
ABS Anti-lock Braking System Principle
What is ABS?
ABS (Anti-lock Braking System) is an active safety feature of a car that can prevent the wheels from locking during emergency braking, help the driver maintain directional control, and reduce the risk of skidding and loss of control.
How it works
-
Sensor monitoring :
Each wheel is equipped with a speed sensor to monitor the rotation speed of the wheel at all times. -
Computer judgment :
When the driver steps on the brakes hard, if the system detects that a wheel is about to lock (the speed drops suddenly to near 0), the ABS computer intervenes immediately. -
Adjusting brake pressure :
ABS rapidly and repeatedly releases and applies brake force (up to dozens of times per second) to prevent the tires from completely locking up while still providing maximum braking effect. -
Maintain control :
When the wheels are not locked, the driver can still turn the steering wheel to avoid obstacles, greatly improving safety in emergency situations.
Tips:
When ABS is activated, the brake pedal will have a noticeable bouncing feeling and a "clicking" sound, which is normal.
Common driving mistakes
1. I thought ABS could shorten the braking distance.
mistake!
The main purpose of ABS is to "prevent wheels from locking" and "maintain directional control", which may not necessarily shorten the braking distance . Especially on special roads such as gravel, snow, etc., the braking distance may sometimes be longer.
2. When braking in an emergency, you should "touch and release the brake"
mistake!
For vehicles equipped with ABS, in an emergency, you should continue to press the brake pedal to the bottom to allow the system to adjust automatically.
Only older vehicles without ABS require "tap-and-release braking" to prevent the tires from locking.
3. ABS can prevent the vehicle from slipping and losing control
mistake!
ABS can only "reduce" the risk of skidding, but it is still possible to lose control in situations such as speeding, braking when cornering, and on slippery roads . Safe driving is still the key.
4. Ignore the steering wheel, ABS will automatically avoid obstacles
mistake!
ABS only helps you "maintain steering ability". You still need to actively turn the steering wheel when you need to dodge.
summary
ABS is an important safety technology for modern cars. It can help drivers to "stop and turn" in emergency braking, greatly reducing the risk of accidents. However, only by using and understanding the functions of ABS correctly can it achieve the maximum safety effect!
Tips: ABS is widely used in various types of vehicles, including motorcycles, trucks, and even some bicycles.
