Emergency brake, tire lock, distance, no steering. How can we control the distance and at the same time grasp the right direction, so that you can have both.

It's a good thing, which is generally acknowledged. But no matter how good a thing is, it needs to be understood and used correctly to make it work. At present, people's understanding and use of ABS can be said to be mostly incorrect. Therefore, it is necessary and even urgent to re understand ABS.

At present, domestic pickup trucks and low-end buses will adopt this device. Compared with the electronic type, it has no sensor to feed back signals such as road friction and wheel speed. It works entirely on pre-set data. No matter it is the road with water, the road with ice, the road with mud, or the road with good cement and asphalt, its working mode is the same. In this way, the braking effect will be greatly reduced. The electronic type will send signals to the driving computer according to the friction, rotation speed, turning angle and body inclination of each wheel. The frequency of braking force is distributed by computer, which can exert different braking force on each wheel, so as to achieve the effect of scientific and reasonable distribution of braking force. In other words, the electronic mode will analyze different data to the computer according to different situations, and make corresponding adjustments after processing. So that the braking process of the car can reach the best state.

Let's think about the normal braking action. In case of an accident, we will step on the brake pedal with one foot, right? Then the more urgent the situation is, the harder you step on it until the tires lock up and scream. At this time, the car is really trying to stop, but the front wheel has lost the ability to steer and dodge, and the steering wheel has failed. At this time, if there is a small pit or the like, the vehicle may also swing its tail and turn around. In fact, at this time, just loosen the brake pedal, but at this time, I'm afraid there is a blank in people's mind, and the brake will only subconsciously press harder. Sold to more than 180 markets around the world.

This is what happens when the wheels are locked. Without ABS, the so-called "lock up" formed by wheels is that no matter how the driver turns the steering wheel, the vehicle cannot change direction, and its sliding direction cannot be grasped or predicted. Of course, the vehicle is in extreme danger due to the loss of direction control.

For this reason, automobile manufacturers have invented ABS. Its principle is actually very simple. When the system finds that the wheel is locked, it immediately automatically relaxes the brake pad, so that the wheel continues to roll, and then automatically brakes tightly. When it finds that the wheel is locked, it automatically relaxes again. In this way, it can act 60 to 120 times in a second. Similar to the mechanical "brake stopping", it is far higher than the human beings can do 1-2 times per second. In this way, the intermittent rotation of the wheel provides the driver with the opportunity to control the direction, so that the driver can turn while braking, thus avoiding the dangerous area.

So in fact, ABS can't shorten the braking distance as many people think. On the contrary, it will extend the braking distance. However, ABS will help you get a chance to avoid danger, which may be more precious to you in an emergency.

An example might be more intuitive. On the narrow road, just as you are speeding up and speeding up to overtake a car in front from the left lane, you suddenly find a car coming from the opposite side. At this time, if you continue to speed up and overtake, you will bump into the oncoming car. You also have to brake hard to get back to the car you are trying to overtake. In such an emergency, you press the brake to the end, turn the steering wheel to the right in the moment of life and death, and the oncoming car roars past your left. Imagine that if your car does not have ABS, you will lose control of the steering wheel due to wheel lock when you step on the brake, and the consequences will be unimaginable.