The role of ABS[汽车修理知识]

Some netizens asked, they all saidABSrightcarSafety is very important, but I still haven't fully understood why ABS has so many benefits? The car suddenly encountered a situationbrakeAt this time, more than 90% of drivers tend to step on the brake pedal to the end to make a sudden brake. At this time, the car is very prone to slip and sideslip, which is commonly known as the “tail flick”. A phenomenon that is very easy to cause car accidents. There are many reasons for car sideslip, such as driving speed, ground conditions,tireStructures, etc. will cause sideslip, but the most fundamental reason is that the wheel loses the directional stability caused by rolling during emergency braking. At this moment, the driver even twists.steering wheelIt won't help. During braking, if the front wheel is locked first, the direction may be out of control; if the rear wheel is locked first, side slip and tail flicking will occur. And equipped with ABS, can prevent the four-wheel brake from being locked and reduce the occurrence of accidents. People invented the wheel and used a'car' with wheels to save effort. From then on, these cars with wheels must obey the laws of their wheels. So, what is the law of movement of the wheel?

That is: when it rolls, the direction of movement must be perpendicular to its axis.

Therefore, we fixed the axle to the car body horizontally, and the car moved in the longitudinal direction as soon as the driving wheel turned. What to do if you want to turn? Through the steering wheel, the axes of the four wheels intersect at a point, and the car rotates around that point (the center of the turn). However, once the wheel does not turn, the above-mentioned law does not exist. Without this rule to dominate, the movement of the car becomes elusive.It might
* According to inertial movement
If the car was driving on a straight road, the problem may not be big. If the car is driving on a curve, it will leave the original road under the action of centrifugal inertia, cause an accident, or even roll down a cliff.
* Exercise under the action of external force
If wind comes from the side, the car may slip. If the road is sloping, uneven, or uneven, the car may slip. The road conditions cause uneven braking force of each wheel, and the car will suddenly turn. These situations can happen alone or together. Therefore, once Che Lun is dead, no one can say what will happen.
However, as long as the wheels are still rolling, this will not happen. Why? Because the rolling car theory must follow its law of motion, which is to move in a direction perpendicular to the axis. As long as the direction of the axis does not change, the direction of the car does not change. You will be able to grasp the movement of the car.
The function of ABS is to prevent the wheels from locking up during braking.
Will the braking distance be longer if the wheels are not locked? On the contrary, experiments show that a well-designed ABS has a shorter braking distance. This is because the friction coefficient between the wheel and the ground becomes smaller after locking. ABS can control the slip rate at 10-20% to obtain the maximum longitudinal braking force.
You can't refuse corners, you can't let the wind blow and the water flow, but you can choose to drive a car with ABS.
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