Speed bump is installed in schools, hospitals, residential areas, large enterprise entrance road, used to force the car to actively slow down the device, generally rubber material, the color is black and yellow, and protruding from the ground of the device, the reason for setting this, is because too many people drive fast, even after passing through some special sections, such as school entrance, still do not slow down, can only take this semi-forced means to force the car to slow down. Even if the speed bump is set, many drivers do not slow down much when driving through, when they are about to drive through the speed bump, they take a foot on the brake, I believe that this operation has been done by many driver friends, including Xiaobian has also done, so there are old drivers who come out to talk, saying that stepping on the brakes over the speed bump is a car destruction operation.
Speed bumps are everywhere
The specific reason is as follows: when stepping on the brakes, it is four wheels braking together, the brake pads under friction, will convert kinetic energy into thermal energy, and let the car have a forward-leaning action, the car's center of gravity forward, including the inertia and impact of the speed are in the front part, when the car passes the speed bump, there is an upward and falling action. When the car falls, the suspension system begins to work, when you do not step on the brakes, the car is running normally and the suspension system with a shock, now you step on the brakes, the car will have an additional impact, will increase the burden of the suspension system, in the long run, will lead to damage to the suspension system.
The car passes through the speed bump
There are also people over the speed belt, will run to the far right of the speed belt to pass, because the speed belt is not completely isolated from the entire road, in the two heads there is always a little bit of no speed bump installed, so many owners from the far right side through, the front and rear two right wheels are not through the speed belt, and the front and rear two left wheels are passed through the speed belt, so that when passing, only the left side will vibrate, so that the suspension system impacts once, while the right side has no vibration, and there is no sense of impact. There are also old drivers who say that this is more difficult to pass the speed bump, because the force is uneven, if this is the case for a long time, the left suspension is often impacted, while the right suspension is not impacted, which will produce an offset in the four wheels of the vehicle, and will also cause the suspension system to be damaged due to uneven force. So the question is, if you step on the brakes and pass the speed bump, will you really damage the suspension system?
Automotive & Suspension Systems
Now the private car is almost independent suspension, each wheel is connected to the body or frame alone through the suspension system, such an advantage is that when passing through the bumpy road or speed belt, the vehicle can have a certain degree of comfort and stability, just because it is independent suspension, so when your car one wheel on the speed belt, the other wheel on the ground, even if the two wheels are not the same height, it can still keep all the wheels close to the ground, but also can maintain the grip of the tire. When the car in the speed bump, the suspension system will play a role, different cars have different suspension, some cars have hard suspension, some cars hang soft, the feeling of passing the speed reduction belt is different, the weight of the general private car is more than 1 ton, is through the suspension system spring to produce cushioning and maintain comfort and stability.
Shock springs
Spring many people know, within the elastic limit, the spring can be freely retracted, over the speed bump is actually the spring a pressure a bullet process, as long as the spring within the elastic limit, the suspension system will not be bad, which involves the life of the suspension system, the car is a mature industrial product, its suspension system can withstand 100,000 times of cushioning, as long as you are normal use, the suspension system is used to scrap the vehicle is no problem. But if you are abnormal operation, the suspension system may be a problem, the biggest damage to the suspension system is the rapid passage of the speed bump, the faster the speed, the greater the damage, the old driver knows that when you drive at high speed, suddenly find a pit or a wooden stick on the road will try to avoid, otherwise the car will cause injury. The same is true for the speed reduction belt, the speed is fast, the car will be like flying up like the feeling, and then fall heavily to the ground, the weight of the car itself is more than 1 ton, coupled with the impact force of inertia, almost can produce dozens of tons of force, falling heavily to the ground, it will make the spring in the suspension system withstand a super large force, at least several times to more than ten times larger than the force bearing the low speed through the speed reduction belt, so it is easy to make the spring damage that produces a buffering effect.
The car slowly passes through the speed bumps
Once the spring is damaged, exceeding the elastic limit, it will not rebound to the previous state, often so, it will damage the suspension system, once so, your car is very uncomfortable to pass the speed bump, there is no cushioning effect, comfort and stability are greatly reduced, you need to replace the suspension system. Going back to the previous statement, will stepping on the brakes over the speed bump damage the suspension system? The answer is no. As long as you do not quickly drive through the speed bump, you will not let the spring exceed the elastic limit, nor will the suspension system be damaged, the car is not paper paste, not so fragile, but doing so will make the tire wear out, and at the same time will slightly increase the burden of the suspension system, not to the point of damage. The suspension of the vehicle is designed to pass 100,000 speed bumps, and we do not have to go through the speed bumps every day, under normal use, there is no problem in using the speed bumps for more than ten years, so how should the speed bumps be operated?
Press the brakes over the speed bumps
The best thing to do is to slow down early, no matter what your previous speed was, it is best to reduce the speed to within 20 km/h when passing through the speed bump. When the low speed over the speed bump, the impact of the car from the speed bump is the smallest, the four wheels bear the uniform impact force, the suspension also works normally, the spring also produces a buffer normally, this is the best way for the car to work, and it is not impossible to do, I really can't understand why many drivers are also very anxious, the speed is very fast, the brakes are too lazy to step on, so there is no benefit to the car.