What is Esp in the car. ESP in the car: what it is

Quite often, the lucky owners of new and modern cars raises the question - what is ESP, why do you need and do you need at all? With this it is necessary to figure out in detail that, in fact, and make further.

Contrary to the common opinion, the car management is not always simple. In particular, this statement is relevant for situations where the trajectory of motion is hampered by various external factors - Whether it is complex road bends or difficult weather conditions. And often both in a closer. The main danger in such cases is a skid, which can cause difficulties with control, and in some points even uncontrolled and unpredictable vehicle movement capable of leading to the accident. And the difficulties may arise from newbies, and already have enough experienced drivers. A special system indicated by the ESP abbreviation is intended to cope with such a problem.

ESP system logo

ESP or Electronic Stability Program is the name in the Russian-language version means an electronic system of dynamic stabilization of the car or a different course stability system. In other words, ESP is a component active system Security, which is capable of computer to control the moment of force of one or even simultaneously multiple wheels, thereby eliminating the lateral movement and aligning the position of the car.

Similar electronic devices Released by different companies, but the largest and recognized ESP manufacturer (and precisely under this brand) is the Robert Bosch GmbH concern.

ESP abbreviation is the most common and generally accepted for most European and american carsBut not the only one. W. different carswhere the system of course stability is established, its designations may differ, but the essence and principle of operation does not change.

Example ESP analogs for certain machine brands:

• ESC (Electronic Stability Control) - for Hyundai, Kia, Honda;
• DSC (Dynamic Stability Control) - for Rover, Jaguar, BMW;
• DTSC (Dynamic Stability Traction Control) - for Volvo;
• VSA (VEHICLE STABILITY ASSIST) - for acura and honda;
• VSC (VEHICLE STABILITY CONTROL) - for Toyota;
• VDC (Vehicle Dynamic Control) - for Subaru, Nissan and Infiniti.

Surprisingly, the ESP received wide fame did not receive when it was created, but a little later. Yes, even thanks to the scandal in 1997, related to serious shortcomings developed then Mercedes-Benz A-Class. This compact car For the sake of improving comfort, a fairly high body was received, but at the same time high Center severity. Because of this, the car has a tendency to serious rolls, and also underwent risk of overturning when performing a "Perestrovka" maneuver. The issue was resolved on the compact models of the Mercedes system of the course stability. So ESP gained fame.

How the ESP system is arranged

Systems providing security

It consists of a special control unit, external measuring instruments tracking various parameters, and the executing mechanism (hydroblock). If you consider directly the ESP device, it can only perform its functions only in combination with other components of the active car safety system, such as:

• Block preventing systems for braking (ABS);
• Brake force distribution systems (EBD);
• Electronic Differential Blocking System (EDS);
• Anti Personal System (ASR).

Purpose of external sensors Track measurement of the angle of rotation of the steering wheel, braking systems, the position of the accelerator (in fact, the driver's behavior by the wheel) and the features of the car movement. The data obtained is read and arrive at the control unit, which, if necessary, use the executing mechanism associated with other elements of the active security system.

In addition, the control stability system control unit is associated with the engine and automatic transmission and is able to influence their operation when emerging emerging situations.

How ESP works

Car trajectory without ESP

The ELECTRONIC STABILITY PROGRAM system constantly analyzes the receiving data on the driver's actions and compares them with real movement car. If ESP will consider that the driver loses control over the machine, then interferes with the control.

Correction of the car course can be achieved:

• With the help of braking certain wheels;
• By changing the engine speed.

What wheels to slow down determines the control unit depending on the situation. For example, when driving a vehicle ESP can slow down the outer front wheel and at the same time changing the engine speed. The latter is achieved by adjusting fuel supply.

Video about ESP.

Driver ratio to ESP

Shutdown button ESP

It is not always unambiguous. Many experienced drivers are dissatisfied with the fact that in some situations, contrary to the desire of a person behind the wheel, pressing the gas pedal does not work. ESP cannot evaluate the qualification of the driver or his desire to "strive", its prerogative to ensure the safe movement of the car in certain situations.

For such drivers, manufacturers usually provide for the ability to disconnect the ESP system, moreover, under certain conditions, they even recommend it to disconnect (for example, on the bulk soil).

In other cases, this system is really needed. And not just novice drivers. In winter, it is not easy without it. And given the fact that, thanks to the spread of this system, the accident rate decreased by about 30%, its "need" is no doubt. However, it is impossible to forget that no matter how effective there was such assistance, 100% of protection it will not provide.

Equipment modern car Makes the process of managing the simple. At the same time, it is impossible to say that this is too easy. It takes a lot of nuances to take into account so as not to be on the side of the road not only the roads, but also lives. Travel bends, weather conditions, driving experience and much more are important. The car is able to behave on the road unpredictably. Loss of control can provoke an accident. How to prevent such developments?

This can be done using ESP. Under this abbreviation hides a system providing course stability. From the position of English language Deciphered like this: Electronic Stability Program.

What is ESP.

Under it is understood by the security system, which through the computer controls the car in non-standard situations. If the car loses its stability on the road, that is, it begins to write out a dangerous trajectory, then its position is forcibly aligned.

ESP is not a single designation of dynamic stabilization systems. We have a popular brand and no more. Therefore, we will consider it. Although there are its own popularity from other similar systems, for example, ESC and DSC.

History

The first patent for the type of type was issued in 1959. The development was called the "Managing Device". Its initiator was the concern Daimler-Benz. The result was mediocre. Concern engineers could not offer a product that could become a real driver assistant.

Everything has changed after many years. In 1994, premium Mercedes got equipped with a full-fledged security system. A slightly late term stabilization was available on Mercedes-Benz serial machines.

Device

ESP itself is not able to perform tasks assigned to it. Electronic sensors are required to help. The signals receive a special block from them. Electronics in time informs the system of inadequate behavior of the car, which makes it possible to return control over the vehicle.

The list of component elements is formed by:

• the main block intended for processing signals from sensors and control specific devices;
• sensors fixing, at what speed each wheel rotates;
• sensors measuring the speed and deviation of the vehicle along the axis. The sensors of this species are inside a single case;
• controller capable of determining how steering wheel Changes the angle of rotation;
• hydraulic block initiating brake efforts.

The following systems also include assistants:

• ABS - elimination of the probability of blocking wheels during braking;
• EBD - Distribution of effort when controlling brake discs;
• ASR is to control how much the wheels slip are, followed by the redistribution of the torque. Slobacing is excluded;
• EDS - addition to ASR. Blocking the differential mechanism.

How it works

Course stabilization via ESP is impossible without ABS. An anti-lock system is an important moment of adjusting the behavior of the car. The stabilization process is also provided by the functionality of the anti-slip system and the block capable of changing the engine operation mode.

ESP determines the development of a multiple parameters. For example, with a small angle of rotation of the wheels, an excess of transverse acceleration can be recorded and a significant change in the angle of rotation of the vehicle. It goes beyond the "right ride", so the system begins to act.

In practice, there is a braking of specific wheels or weakening braking effort. The hydromodulator changes the state of the brake system in terms of its pressure. Work power aggregate Corrected. The block controller reduces the fuel supply, which reduces the torque transmitting to the wheels. As a result, the car is attached to the previous trajectory.

The structure has a main unit that accepts and process information coming from sensors. Under such information is understood as a few moments: how fast the wheels rotate, in which position the steering wheel and how much pressure in brake system Corresponds to the norm. Based on similar eSP data Deciding how to act. In this case, the most important signals from two sensors read by transverse acceleration and angular speed.

Consider the example of a simplified scheme of how term stabilization occurs.

Rosy

The data is received on the block controller:

• the rear axle begins to shift by the direction where it enters;
• the magnitude of the slide speed goes beyond the valid values.

If you experienced driver, then give the gas and try to get out of the drift. The keyword here is "experienced", but at the same wheel, most of them are those who were not in such situations. They can be confused. It is also worth considering inattention. It is here that there is a need for ESP.

The system returns a car to the previous course by braking front wheel From the outside.

Demolition

Sensors sign on non-standard vehicle behavior:

• the displacement of the front axis is recorded in such a direction as the outer side of the rotation;
• the rush speed is defined as small.

The system stabilizes the car that is achieved by braking rear wheel From the inside.

Combining ESP

Automobiles operated in EU countries are equipped with ESP, which is procured since 2014. This is necessarily for the minimum configuration. As for Russia, such a rule is also available, but it acts only when certification of new cars. For the remaining machines, the improvement of this plan is possible only for an additional fee.

Independent installation

If desired and a certain skill, you can install ESP yourself. To do this, you need to know which elements of the system are needed where they are installed, how to use the scanner and the corresponding software. The rest will need to be purchased:

• block controller;
• Sim module;
• rush sensor;
• plug.

Fault

The signal that ESP fails to go to dashboardwhere there is a test pointer. This situation is possible as a result:

• breakdown block controller;
• chain cliff, which preferably occurs with speed sensors;
• the failure of the brake force sensor, etc.

In any case, you need to respond on time to the fault signal. To specify the problem requires computer diagnostics.

Output

Some motorists believe that ESP is the obstruction of normal driving and the inability to exit critical situations. The last statement is true, but in part. The percentage of inadequate behavior ESP is negligible.

The system providing coursework is effective. It does not allow drivers to behave on a drone too freely. Attempts by driving, leaving the framework of pervolored. The loss of capacities on slippery coatings in off-road conditions is covered with electronic imitation of locks, which helps to overcome obstacles when diagonal hanging occurs.

Video

The presence in your car stabilization system can be a decisive factor for saving lives in an emergency. How does the stabilization system work?

Stabilization system, or, as they are also called currency System System Controlled by a special control unit. Numerous sensors track the direction of movement of the car depending on the position of the steering wheel and the accelerator pedal. Also, the computer receives information about side accelerations and orientation of drift from sensors.

As a result, when a threatening situation occurs, when the driver loses control over the machine, the ESP recognizes the danger and comes into operation lightning. The course is adjusted by braking both wheels on the right or left side or one front or rear. Depending on the degree of risk of driving, the system itself decides which of the wheels should slow down. In extreme cases, ESP "stifles" engine, limiting the fuel supply to the injector. The process itself happens quickly and barely noticeably, and the main roles are assigned to the electronic control unit and the ABS anti-lock system.

As you understand, the ESP itself is worthless: the main thing is that the car is equipped with the ABS system, the ESP program with the necessary sensors is attached to the submission. So the cost of ESP cannot be very high, and even more so it seems blaspheme the fact that buyers are forced to refuse a useful guardian angel due to the overestimated cost.

From February 2009, all-crash tests on the system Euro NCAP. Tightened. As a result of the fact that many cars are gaining the maximum five stars during various tests, the management of the organization decided to make a new evaluation criterion: the presence in the basic equipment of the system stabilization ESP.. As a result, according to the new rules, cars will receive one single assessment, and not four, as before.

Of course, these are great news for all of us. And although the ESP system has become more accessible over the years, many manufacturers continued to offer it as an option that is wrong. Those buyers who tried the ESP in action assured us that they would never buy a car without an electronic guardian angel.

And now consider the attitude of drivers of developed countries in Europe to ESP. It seems that European countries - Civilized countries and willingly take the most modern technologies in their daily life, but many motorists prefer to spend money on the level of comfort of their car, rather than order an extra system of active or passive security.

In the course of the study concerning stabilization and course stability systems The British Association The Society of Motor Manufacturers and Traders revealed the following trend: only 10% of Europe inhabitants generally in the know what it is and how ESP acts. The rest simply do not represent the values \u200b\u200bof the Electronic Stability Control or Vehicle Stability Assist ( different manufacturers This technology is referred to in different ways). What then talk about Russians?
It turns out that when ordering a model of a particular model, Europeans are ready to refuse to install ESP in favor, for example, leather cabin, climate control, expensive musical audio system, xenon heads etc. It is noteworthy that such a situation is indicative and for the Russian market.

For comparison, during a similar investigation in the United States, it turned out that if all cars would be equipped with ESP, the number of accidents could be reduced exactly by 50%. The digit is impressive. According to information from Honda, the owners of its models in the presence of an ESP by 35% have less chance of causing an accident.

Statistics of stabilization systems for new machines in the UK also depressing: only 34% of the total number of buyers are asked to additionally install ESP. And only the Germans - the people are more scrupulous: 60% of people ordered the ESP option.

Of course, expensive models from luxury brands, such as Audi, BMW, Mercedes-Benz, Lexus and Volvo, are already equipped with coursework systems. Cheaper brands put this technology to the list of expensive options.
Bosch back in 1995, developed its first ESP and, according to representatives of the company, the price for which car brands Purchasted stabilization systems, on average does not exceed 7000-9000 rubles, while the dealers in the literal sense "fight" twice and even three times already from the client.

Mercedes-Benz Corporation today equips ESP technology every model. "It is extremely important for us that our cars would not only be comfortable and high-tech, but also secure as possible. Therefore, our opinion is such: Security should be included in standard complete settherefore ESP along with other active and passive security systems should be part standard equipment"," Said the official source of Mercedes-Benz.
Take to evaluate and domestic market. For example, loves to the public Ford Focus In popular COMFORT and GHIA equipment. How much would you think the dealers are asking for an optional ESP? As many as 17,900 rubles! It is clear that many will prefer "music" more expensive than ESP. Moreover, many are confident in their forces, what happens to ...

Opinion Mass.

As already mentioned, many drivers in Europe have a weak idea of \u200b\u200bthe benefits of ESP. Therefore, the British Association The Society of Motor Manufacturers and Traders offered drivers of various sexes and age to undergo a familiar test.
Before tested at the landfill, all the subjects were asked what they knew about stabilization systems and how much they were ready to pay for them. Third of the whole group did not know at all, and the rest had only a superficial representation, but they would be ready to pay no more than 180 pounds of sterling for ESP (about 10,000 rubles).

Also, the participants were asked to express priorities among the following car parameters: class, brand image, body design, trunk volume and efficiency. On average, the stabilization system in this list only ranked sixth of seven.
After the survey among the subjects, the test itself was conducted, organized with the support of specialists from Bosch. In principle, nothing superpose from drivers was required: everyone had to do the exercise "Power test", or in other words, a detour suddenly appeared by a fixed obstacle. First, with the Initory Guardian included in the ESP face, and then without it at a speed of 80 km / h. With the disabled ESP, everything has lost control over the machine, which in a real situation would definitely lead to an accident. But when the stabilization system involved, the drivers managed to keep the car on the correct trajectory and subsequently align the car.

What to talk about the usual motorists, if the benefits of ESP also did not finish the insurance companies. In theory, in the presence of this system, the coefficient should only fall, but this does not occur, and the owners pay for the policy as much as possessors iron horses without ESP. But in the near future, the picture should change, at least this considers the owner of one major insurance company in the UK James Harrison: "The ESP stabilization system is equivalent to the anti-lock in 1970. aBS systemAnd machines with ABS have a smaller coefficient compared to vehicles without it. But it happened not immediately. The same story with ESP. Apparently insurance companies require time to understand that the system or that system really significantly reduces the risk of an accident ".

In the meantime of the course stability systems, despite all their obvious benefits, remain few worldwide. Russia is no exception, although every year our motorists are becoming more civilized and attentive not only to their lives, but also to the life of others.

Summary

People do not fully understand how vital to the course stability systems are. When order new car Buyers will rather spend money on improving comfort than on ESP. Such is the current situation and change the attitude towards the ESP we tried in the material you.

In our opinion, the ESP must be part of the standard equipment of all vehicles, regardless of class and brand, as ABS, seat belts and airbags, especially since it turned out, automakers pay only 200 pounds for this technology to the manufacturer. The company themselves are confident that with time ESP will fall into the list of basic equipment, but what to wait, because the system reduces the risk of an accident by 30%, and these are thousands of saved lives annually.

Such a question as security, worried about the first autoconstructors at the dawn of the automotive industry. Since then, security systems are constantly improved by helping modern car owners to emerge from difficult situations at a critical moment. Consider one of these new systems and find out what ESP is in the cars of modern configuration.

Nowadays, the system has received great distribution ESP (Electronic Stability Program). We call it currency stability system. It is designed to control the stability of the car in critical situations, not allowing vehicle Log in and preventing lateral slip. Including the system helps to hold the car when performing sharp maneuvers at high speed or poor road surface.

Such security devices were first trying to use in the middle of the last century, but a truly working version managed to implement on serial machines only in 1995. To date, it is used almost on all cars, regardless of their class and cost.

Let's figure it out how this device works.

So such an ESP in a car and how this system works

The ESP system works in a complex with ABS. All sensors in the anti-passing system are involved in the work of the ESR, but also it has its own. The electronic unit processes the incoming signals from all ABS sensors and two ESR sensors. One of which freezes the angular speed, and the other transverse acceleration.

Using these sensors, a lateral slip is fixed. They define its parameters and transmit a signal to the electronic unit. This device is constantly being aware of all vehicle testimony, such as: speed, steering angle, engine turnover, or how much the car has been listed.

The electronic unit when processing signals coming from the sensors compares information with the behavior of the car, and as soon as information about deviations from the specified parameters is received, the electronics tries to correct the position.

Align the car in the event of a drift system may feed various commands on different wheelswhich at this moment must be slowed down, in her opinion, and which - no. Turning is carried out through the ABS modulator, which creates pressure in the brake system. At this point, the command is also fed to the engine control. To reduce the number of revolutions, the feed is automatically reduced and the wheel rotation slows down.

On vehicles with electronic control unit, ESP can make changes to the operation of the transmission, switching transmissions in a critical situation at its own discretion.

Many drivers believe that a device such as ESP in a car interferes when performing sharp maneuvers or an aggressive ride style. By the way, on many cars there is a disconnection of ESP as desired. But it is recommended to disable it only for good road Conditions And if the driver has extensive driving experience.

The ESP system represents one of the most important parts of the car control security, correcting the mistakes allowed and often helping to get out of a difficult situation as an experienced and having experienced driver.

One of the main advantages is that such a device does not require special skills from the driver emergency situation. It is enough just to rotate the steering wheel, and the car will independently think about how to turn the turn.

But you do not need to forget that it is not worth relying on ESP. Still, sometimes the driver must think about his own security, as well as the safety of passengers.

ESP: What is this - blazing or necessity? Does the presence of this system be in a car or can I easily do without it? Answers to these questions you will learn from this article.

ESP is an electronic stabilization system or coursework. Who likes to call how much more. At different manufacturers, its name may differ. Gemini Brothers are DSTC, DSC, VSC, VDC, ESC systems.

ESP. What does it give to the driver?

First of all, security in the event of danger, the system takes the initiative to itself and in the second fractions of a second interferes with the management. ESP controls the transverse dynamics of the car and helps maintain coursework stability. In particular, it is able to prevent lateral slip and skid, stabilize and position the machine. Especially when driving at high speeds and with a bad clutch with an expensive. Of course, nothing in this world is perfect, and no one can guarantee 100% protection. But this intelligent assistant will repeat you in extreme situations.

The principle of its work is quite simple. It receives data from ABS sensors and, if necessary, slows down the wheels.

History

Something similar to modern ESP was patented in 1959. In the German company Daimler-Benz called the "control device". However, it turned out to be converted into life only in 1994. Since 1995, the CL600 coupe, and then on all cars the S and SL ruler, the ESP system was installed in a serial order. What is this - blazing or necessity?

Judging by the fact that today this option is available almost on all models of cars, one can judge that the system has proven itself well. But you should not buy ESP Japan. Trust the original configuration.

ESP: What is it and how does it work?

The system is associated with the engine control unit, ARS and ABS. ESP continuously processes signals from different sensors. In particular, thanks to obtaining data on the rotational speed of the wheels. Also taken into account the position of the steering wheel and the pressure in the brake system. But the main indicators are the sensor that is calculated relative to the vertical axis, as well as the transverse acceleration sensor. It is these devices that are able to give a signal that the side slide appeared on the vertical axis, determine its degree and give orders for further actions. The system constantly monitors the speed of the machine, the rotation angle of the steering wheel and the presence of drift.

The controller continuously compares the actual behavior of the car on the road with the one that is laid by the program. If deviations are observed, the system perceives it as a dangerous situation and takes actions to its correction.

To return the car to the previous course, the system can give the command to the forced brazing of the wheels. This action is performed using an ABS hydromodulator, which creates pressure in the brake system. At the same time, a team is served to reduce torque and reduce fuel supply.

The system works constantly - when braking, acceleration and even when moving rolling.