Sometimes a sign - a warning of a possible danger ahead along the road - is not a stop signal for a hurrying driver. To avoid accidents due to such drivers, special obstacles have been installed on the highways that will force the motorist to slow down in front of a dangerous section or a pedestrian crossing. No man wants to damage his car because of such a barrier. And if you do not notice it, then in any case you will have to slow down.
It is the speed bump that makes you slow down. How it is safest for yourself and the car to drive on it is taught in driving schools. First, they tell the theory, after which they consolidate knowledge with practice. Sometimes instructors forget to talk about speed bumps, as a result, students have no idea how to cross this barrier. As a result, both the driver and the car suffer. To avoid such cases, we will analyze in detail the technique of driving through artificial interference.
What is a speed bump
A similar barrier is needed on the highway so that the driver slows down in unsafe areas of the road. Such deceleration is required in front of a zebra crossing or in crowded places (for example, a city center). Under current rules traffic, speed bumps should be made up of rubber. That's just on Russian roads you will meet them very rarely: all obstacles of this type are made of asphalt. The disadvantage of such a “cop” is that if you drive through it incorrectly, you can severely damage the car.
How Not to Overcome an Obstacle
When you press the brake, the corresponding pads of the machine are automatically blocked, and the pressure between the wheels and the road increases significantly. There is an inertial force acting in the direction of movement, and there is a braking force, it is directed against the car. It turns out that these two forces act in completely opposite directions. And there is a moment during which the front of the car is pressed against the track, and the back, on the contrary, rises. Also in this case, the pressure on the front suspension is greatly increased: it depends on the force of deceleration.
If, during the above process, the vehicle passes through an obstruction, the front suspension is subjected to enormous loads. Having passed incorrectly through a speed bump several times, you can say goodbye to her. And if you do this periodically, it is easy to disable the entire machine.
How to move over an obstacle
There are two main ways to drive through an artificial barrier, which allow you not to endanger either the driver or the car. The first method is to slow down in advance. Thus, you do not load the suspension, and the car runs over the “cop” coasting. To do this, you just need to reduce the speed of movement and activate neutral gear. remember, that allowable speed in this case - 30 km / h. And don't forget to release the brake pedal before passing through the obstruction.
The second option is to almost completely stop the car in front of the speed bump. Engage first gear and move quietly. This overcoming obstacle is a great solution for those new to the road who have not yet mastered the technique of rolling.
By the way, some drivers pass through such an obstacle at an angle. This is because there is not a lot of pressure on the suspension, because each wheel experiences only a small push.
In custody
In order not to damage the car when overcoming a speed bump, you need to clearly know how to do this. The article describes the two most common and main ways that allow you to keep the suspension of the car intact. Do not rely on luck, it is better to competently travel than to spend a substantial amount on the repair and repair of vehicles in a car dealership.
Not always a warning possible danger on a certain section of the road stops the driver who is in a hurry or inattentively watching. To do this, the relevant services, for safety reasons, create artificial interference on the road surface. If the signs do not have a special effect on drivers, then artificial barriers help the driver to slow down in front of a pedestrian crossing or a dangerous section of the roadway. Nobody wants to damage their car on an artificial barrier, and if you don’t slow down in front of it, then it will happen.
How to drive a speed bump,. First, they explain the theory of passing an artificial barrier, and then reinforce theoretical knowledge on practice. But many driving school instructors forget about this lesson, and the driver does not know how to cross the obstacle correctly, because of which he suffers. own car. We will try to explain as clearly as possible how to pass speed bumps, and at the same time not damage the car.
What is a speed bump
Artificial roughness is created on the road surface in order to force the driver to slow down on potentially dangerous sections of the road. Forced speed reduction is necessary in places of heavy traffic or before. According to current legislation Russian Federation, such barriers must be made of rubber, however, on our highways often there are old barriers that are made of asphalt. They can cause significant damage to the car if it is not properly overcome. Now we will consider the wrong version of how to drive a speed bump.
Wrong option to overcome the obstacle
When you press the brake, the car is blocked vehicle, as a result of which, at the point of contact between the wheel and the road surface, high blood pressure. The braking force of the car is directed in the opposite direction of the movement of the car itself, and the inertia force is directed in the direction of travel. It turns out that one force pulls the car back, and the second - forward. There is a moment of force that presses the front of the car to pavement and raises the back. In this case, the load increases significantly. The load level depends on the intensity of the braking process. And if during the braking process the car overcomes an obstacle, then the load force on the front suspension increases several times. At once wrong overcoming obstacles, the front suspension will not suffer much, but with systematic loads it can fail. If you drive through a speed bump in this way, then serious damage is possible.
The right way to overcome obstacles
There are two ways to overcome an artificial obstacle, in which the car will not be damaged . The first method involves early braking. Before moving a speed bump, it is necessary. In this case, the car overcomes the obstacle by coasting, without much damage to the suspension. The speed must not exceed thirty kilometers per hour. When the car approaches an obstacle, you do not need to press the brake pedal, it must be completely released.
Video on how to properly drive a speed bump:
The second way to overcome an obstacle is to almost completely stop the car in front of the obstacle. Directly in front of the speed bump, you must turn on the first gear and cross the obstacle. This method is great for those who cannot coast the car.
Outcome
Summarize. In order for the car not to receive tangible damage when moving through artificial barriers, you need to know how to overcome them correctly. We have considered two main ways to overcome artificial obstacles, in which the suspension of the car will remain unscathed. Do not neglect these recommendations, their implementation will help save a lot of money motor vehicle.
They call an artificial obstacle that was created on the road on purpose. It forces the driver to slow down unregulated intersection, at pedestrian crossings or on dangerous area roads. But even for experienced motorists, overcoming such an obstacle is a real problem.
dangerous obstacle
As we were told car instructors, if it is wrong to pass a speed bump, then this threatens rapid wear many units and components of the car, in particular, bridges, brake system, bearings and other elements.
Most often, drivers slow down a little before passing obstacles. It is after this that under the weight of the vehicle, the front suspension is subjected to the strongest pressure.
The problem is that there is not always enough time to slow down to a minimum, so when you hit an obstacle, the suspension gets hit. Moreover, after passing an obstacle, many drivers do not pay attention to rear axle, which are "knocked" directly on the "speed bump".
How to safely overcome the speed bump?
As a rule, all sections of roads with speed bumps are equipped with special information signs that warn drivers of artificial unevenness. So it follows a few meters before the "policeman" to slow down, release the brake pedal, and then smoothly move over the obstacle.
Some motorists move over such bumps at an angle. In this case, the suspension does not experience much pressure, because there is only one slight push on each wheel.
This option makes it possible to secure the car, but this is not entirely correct. Passing an obstacle in this way is possible only on roads where there is no heavy traffic. Overcoming the "speed bump" slowly, drivers often face another problem. These are impatient car drivers who begin to honk and rush everyone around. Here the advice is simple: do not pay attention to them, because the durability of the car is more important.
Some drivers find that bumps in the roads will not be as noticeable if they are driven on high speed. This is fundamentally not true. Overcoming the "speed bump" requires a specific approach:
- you see the corresponding road sign;
- two meters before the artificial unevenness, slow down;
- sharply press the brake, after which we release the car, thus pecking forward;
- after returning to the starting position, when the speed is too low, and the car lacks traction, we press the gas. This gives the car a push forward and unloads the front axle;
- it is recommended to add gas to the "speed bump";
- we do not recommend flying such irregularities at high speed.
Remember that your thoughts when driving a speed bump should not be only about him. If you see an obstacle, you don't need to concentrate on it.
Remember that you are on the road, in a car stream, and here the driver's attention comes first.
Video on how to properly drive through a speed bump:
Good luck and attention on the roads of the city!
The article used an image from the site pravdapskov.ru
Not all drivers are responsible for observing the speed limit. To attract their attention, especially in residential areas, artificial road bumps, which are popularly called "speed bumps". And although today they are quite common, even drivers with a certain experience do not always move these bumps correctly.
During braking of a moving vehicle, the main forces occur at the point of contact of the wheels with the roadway. After pressing the brake pedal, the car does not stop immediately. Enough to remember school lessons physics, where it was about inertia - the force that continues to pull the car forward. Its center of influence is much higher than the road surface. It turns out that at the same time two forces pull the car in different sides directed to different parts of it. At this point, the front of the car receives the greatest load, and its rear end rises. Significantly increases the pressure on the bearings and springs of the front suspension.
Hitting a speed bump while braking will inevitably cause a blow to the front suspension. Of course, if sometimes you do not have time to notice artificial bumps, there is no big disaster. However, if you do this regularly, the car will not last long. That is why correct passage through the “speed bump” involves early braking, and when there is one or two meters left to the obstacle, the brake pedal is released. Thus, the springs will take on the entire load, and the suspension will not suffer at all. Even if you did not have time to notice the unevenness, release the brake pedal - a blow will follow, but only on one side.
Sequencing
I. Passage of a low speed bump.
1. Seeing the sign, we slow down, pressing only the brake.
2. A few meters before the speed bump, we also press the clutch - the car moves into the coast.
3. When the machine rear wheels is on top of the speed bump, downshift to 2 or 3 and press the gas pedal.
II. Difficult cases when the distance between the bottom of the car and the road is minimal, as well as when the obstacle is too high.
1. Reduce the speed to almost zero.
2. We pass to 2 or 1 gear.
3. We drive into the unevenness obliquely so as not to tear off exhaust pipe or bend the car body.
III. If the moment is lost, then evaluate the situation, as applying the brakes may cause the machine to lean forward and cause a more powerful impact than if you did not brake.
After flying over an obstacle, evaluate the consequences and take pictures with your camera of the signs, speed bumps, and damage received by the car.
Any specific recommendations for speed limit No. It is better to stick to a uniform high speed so that the parts of the car do not rumble during the moving of the speed bump. Experienced drivers recommend to overcome the IDN at an angle - with such a maneuver, even low car won't get caught up in artificial unevenness bottom.
In city traffic, it is not always possible to maneuver and choose the angle of crossing, so the main thing is to drive at a moderate speed and release the brake pedal when the wheels are in direct contact with the obstacle.
When approaching a speed bump, remember that the car ahead of you can choose any of the ways to overcome the obstacle, and therefore slow down in advance and keep your distance.
An artificial bump in the road is commonly called a "speed bump". It is formed to improve road safety in places of high accident rate - next to pedestrian crossings, near schools and kindergartens, in yards and so on. A speed bump is usually indicated by a 20 km/h (or 40 km/h) speed limit sign, and is also highlighted with a special road markings. It is important to follow the rules when overcoming such artificial bumps in order to avoid possible problems with a car. At the same time, the rules for a car with a manual and automatic transmission are slightly different.
Table of contents:Important: If you overcome a speed bump at high speed, it is fraught immediately next serious problems for the car: damage to shock absorbers, bumpers, tires, hub bearings and so on.
We recommend reading:How to properly drive a speed bump on a manual transmission (manual transmission)
A manual transmission assumes that the driver will need to select a specific gear in which to overcome bumps in the road. On the Internet, you can find information that when overcoming a speed bump on a mechanic, you need to set a neutral gear. However, there is no specific explanation as to why this should be done. From a constructive point of view, this makes no sense.
Correct Algorithm overcoming a speed bump on mechanical box gears are as follows:
Important: There is no difference whether to overcome speed bumps in first or second gear, in terms of the load on the mechanisms.
- After overcoming the speed bump, you can increase the speed and increase the gear.
It is worth noting that it is optimal to overcome a speed bump by coasting, without pressing the gas or brake pedal when passing it. This is due to the fact that if you press the gas or brake directly on the speed bump itself, which does not always meet the requirements of GOST due to its “brokenness”, this can cause damage to the tires due to their additional adhesion to uneven elements (plastic protrusions, metal bolts and so on).
How to properly pass a speed bump on a machine (automatic transmission)
On automatic box The gears are still easier than on manual. The rule also applies here that it is necessary to overcome an artificial unevenness by coasting, without pressing the acceleration or braking pedal when the wheels are on a speed bump. In general, the algorithm for overcoming bumps on a car with automatic transmission is as follows:
- If you are driving a “lowered” car that runs the risk of hooking the bottom of an artificial bump when overcoming it, turn the steering wheel left or right while driving on a speed bump, thereby driving sideways on a policeman (like a curb). This will reduce the chance of damage to the vehicle. Naturally, such maneuvers can only be performed when there is space on the left or right (without leaving the oncoming lane without interfering with other road users).
- Pay attention to the extreme part of the speed bump. Often it is not located along the entire width of the road, for example, when there is a parking lot at the edge of the road. This allows you to overcome the policeman without driving on him, or driving with only one axle;
- Always follow the signs. If the speed limit is not cleared by a sign or intersection, it is possible that you will meet a speed bump ahead of you, which is not marked with a bump sign.
