The equipment of a modern car makes the driving process simple. At the same time, it cannot be said that this is too easy a matter. It is required to take into account many nuances in order not to be on the sidelines of not only the road, but also life. Road curves, weather conditions, driving experience and more are important. The car is capable of behaving unpredictably on the road. Losing control can trigger an accident. How to prevent this development of events?
This can be done using ESP. This abbreviation hides a system that provides directional stability. From the standpoint of the English language it stands for Electronic Stability Program.
What is ESP
It refers to a security system that controls a car through a computer in non-standard situations. If the car loses stability on the road, that is, begins to write out a dangerous trajectory, then its position is forcibly leveled.
ESP is not a unique designation for dynamic stability control systems. Before us is a popular brand and nothing more. Therefore, we will consider it precisely. Although other similar systems, for example, ESC and DSC, have their own popularity.
Story
The first patent for a system of this type was issued in 1959. The development was called "Control device". It was initiated by the Daimler-Benz concern. The result was mediocre. The concern's engineers were unable to offer a product that could become a real driver's assistant.
Everything changed after many years. In 1994, premium Mercedes were equipped with a full-fledged security system. Somewhat later, exchange rate stabilization became available on production cars of Mercedes-Benz.
Device
By itself, ESP is not capable of performing the tasks assigned to it. Electronic sensors are required to help. A special block is engaged in processing the signals coming from them. The electronics informs the system in time about the inappropriate behavior of the car, which makes it possible to regain control over the vehicle.
The list of constituent elements is formed by:
- a main unit designed to process signals from sensors and control specific devices;
- sensors that record the speed at which each wheel rotates;
- sensors measuring the speed and deviation of the vehicle along the axis. Sensors of this type are located inside one housing;
- a controller capable of detecting how the steering wheel changes its steering angle;
- hydraulic unit that initiates braking forces.
The following systems are also referred to as assistants:
- ABS - exclusion of the possibility of wheel blocking during braking;
- EBD - distribution of efforts when controlling brake discs;
- ASR - control of how much wheel slip, with the subsequent redistribution of torque. Slipping is excluded;
- EDS is an addition to ASR. Differential lock.
How it works
Heading control via ESP is not possible without ABS. Anti-lock braking system is an important point in correcting vehicle behavior. The stabilization process is also ensured by the functionality of the traction control system and a unit capable of changing the engine operating mode.
ESP determines the development of a skid in several ways. For example, at a small angle of rotation of the wheels, an excess of lateral acceleration and a significant change in the angle of rotation of the vehicle can be recorded. It goes beyond “driving it right,” so the system takes over.
In practice, specific wheels are braked or the braking force is weakened. The hydraulic modulator changes the state of the brake system in terms of its pressure. The operation of the power unit is corrected. The controller unit cuts fuel flow, which reduces torque to the wheels. As a result, the machine is given the same trajectory.
The structure has a main unit that receives and processes information from the sensors. This information is understood as several points: with what speed the wheels rotate, in what position the steering wheel and how much the pressure in the brake system corresponds to the norm. Based on such data, ESP decides how to proceed. In this case, the most important signals are from two sensors that read the lateral acceleration and angular velocity.
Let us consider an example of a simplified diagram of how exchange rate stabilization occurs.
Skid
The block controller receives data:
- the rear axle begins to shift in the direction where it drifts;
- the sliding speed is out of range.
If you are an experienced driver, then give in to the gas and try to get out of the skid. The key word here is "experienced", but most of the drivers are those who have not been in similar situations. They can get confused. Inattention should also be taken into account. This is where the need for ESP comes in.
The system steers the vehicle back on track by braking the front wheel from the outside.
Demolition
Sensors signal non-standard vehicle behavior:
- the displacement of the front axle is recorded in such a direction as the outer side of the turn;
- yaw rate is defined as slow.
The system stabilizes the vehicle by braking the rear wheel from the inside.
Mandatory presence of ESP
Cars used in EU countries are equipped with ESP, which has been legalized since 2014. This is mandatory for the minimum configuration. As for Russia, there is also such a rule, but it is valid only for the certification of new cars. For the rest of the machines, the improvement of this plan is possible only for an additional fee.
Self-installation
If desired and with a certain skill, you can install the ESP yourself. To do this, you need to know what system elements are needed, where they are installed, how to use the scanner and the corresponding software. Otherwise, you will need to purchase:
- block controller;
- SIM module;
- yaw rate sensor;
- plug.
Malfunctions
The signal that the ESP is out of order goes to the dashboard, where there is a control gauge. This situation is possible as a result of:
- breakdown of the controller unit;
- open circuit, which mainly occurs with speed sensors;
- failure of the brake force sensor, etc.
In any case, it is necessary to respond to the malfunction signal in time. To concretize the problem, computer diagnostics are required.
Output
Some car enthusiasts believe that ESP is an obstacle to normal driving and an inability to get out of critical situations. The last statement is true, but in part. The percentage of inappropriate ESP behavior is negligible.
The system providing directional stability is effective. It prevents drivers from being too casual on the road. Attempts to drive that go beyond what is permissible are suppressed. The loss of power on slippery surfaces in off-road conditions is covered by electronic imitation of locks, which helps to overcome obstacles when diagonal hanging occurs.
Video
Driving a car is not an easy task, as it might seem at first glance. A situation may occur with the driver in which the vehicle may behave in the most unexpected way. This can especially happen in winter, when the road is heavily swept by snow.
Moving in such situations can lead to inevitable drifts, as a result, the car becomes uncontrollable and it becomes extremely difficult to maneuver in such conditions. In such circumstances, the use of electronics can help drivers. It is possible to eliminate the uncontrolled behavior of vehicles on the road with ESP.
Purpose of ESP
The abbreviated abbreviation ESP - stands for the Electronic Stability Program (Electronic Stability Program). Also known under a different name - exchange rate stability system (hereinafter SKU). The letter combination in the abbreviation may be different, depending on the manufacturer: DSTC, DSC, ESC, etc.
The presence of electronic stabilization on the car prevents emergencies such as lateral movement, vehicle skidding. This is due to the control of the lateral transport dynamics. Electronic stability control system is able to maintain directional stability of the vehicle. During maneuvering, ESP aligns the position of the vehicle, which is felt when driving at high speed.
SKU device
Exchange rate stability is a high-level active safety, which consists of:
- systems that prevent the wheels from locking during braking (ABS);
- brake force distribution system (EBD);
- electronic differential lock (EDS);
- traction control (ASR).
The directional stability system controls the input measuring devices, the control unit and the valve body as an executing mechanism.
Input meters are used to convert some characteristics of the vehicle into electrical signals. With their help, the behavior of the driver and the driving characteristics of the transport are analyzed.
For the evaluating behavior of the driver, meters are used to measure the steering angle, brake system, stop-signal switch. It also analyzes the longitudinal-lateral acceleration, wheel speed and angular velocity of the machine.
The control unit of the exchange rate stability system receives parameters from the measuring instruments and creates a control action on the executive mechanism subordinate to the active safety system:
- valve mechanisms ABS;
- solenoid valve mechanism ASR;
- indicators of control lamps ESP, ABS, brake systems.
The ESP control unit has communication with other system control units: engine and automatic transmission. In addition to receiving parametric signals from their systems, ESP has the ability to monitor and influence these systems. For the operation of the stability control system, the valve body of the ABS / ASR system and its component are used.
The principle of operation of the IMS
The onset of a car accident is determined by the comparative actions of the driver's behavior and the desired driving characteristics of the vehicle. If the actions differ from the actual driving parameters of the vehicle, ESP detects as "uncontrolled state" and is connected to work.
Equalization of traffic with the help of SKU can be achieved by some methods:
- with braking of some wheels;
- changing the rotation of the motor;
- changing the angular rotation of the steered wheels (when using an active steering system);
- change in the degree of damping of vibration damper (with adaptive suspension).
If there is a lack of steering angle, ESP can prevent the vehicle from drifting beyond the cornering line by braking the inner rear wheel and changing the engine speed.
When the vehicle is skidding, ESP prevents this situation by braking the outer front wheel and changing the engine speed.
Such braking of the wheels occurs due to the connection of the required active safety systems. When these systems are connected, the operating mode has the form of a repetitive nature: increasing pressure, holding and releasing pressure in the brake system.
To change the RPM of the engine, ESP can do this in several ways:
- changing the location of the valve flap;
- changing the amount of fuel supplied;
- changing the ignition pulse;
- changing the angular ignition timing;
- blocking the inclusion of a transfer in an automatic transmission;
- change in the distribution of revolutions between the axles (with all-wheel drive vehicles).
The combination of the control system, suspension and steering forms an integrated vehicle dynamics control.
Auxiliary functions of the SKU
The design of directional stability can be performed using auxiliary subsystems and functions: hydraulic brake booster, rollover prevention, collision avoidance, alignment of road trains, increasing the effectiveness of brakes when heated, removing moisture from brake discs. The given subsystems are not considered constructions, but exist as an additional software extension to the exchange rate stability system.
Roll Over Prevention levels the vehicle while driving under rollover conditions. Rollover prevention is implemented by braking the front wheels and reducing engine torque. The auxiliary braking takes place through the active brake booster.
Collision avoidance (Braking Guard) is implemented when Adaptive Cruise Control is installed. When a collision is threatened, the subsystem notifies by means of visual and sound signals. In emergency situations, the return pump in the brake system is automatically activated.
Traffic alignment of road trains is realized when equipped with a towing device. The subsystem prevents the trailer from wobbling while driving by braking the wheel or reducing the torque.
Increasing the performance of the brakes during heating (Over Boost) prevents the moment of unsatisfactory contact of the brake pads with the brake discs, which occurs when overheating. This happens by means of an auxiliary increase in the pressure force in the brake drive.
The removal of moisture from the brake discs is activated when driving more than 50 km / h with working windscreen wipers. The subsystem's operation scheme consists in a short increase in pressure in the front wheel circuit, as a result of which the brake pads, pressing against the discs, remove moisture by evaporating it.
What is the difference between ESP and ESC
ESP stands for Electronic Stability Program, stands for Electronic Stability Program. ESC stands for Electronic Stability Control, stands for Electronic Stability Control. These two systems are designed for the same purpose - stable, stable and safe movement of the car during maneuvering. The main difference between them is that ESP is installed on all popular car brands, and ESC only on Kia, Honda, Hyundai.
Is ESP inconvenient for the driver?
Professional drivers who want to squeeze out all their capabilities when traveling (usually riders), directional stability will cause some inconvenience. If, when the car skids, the driver needs to get out of it, as a rule, he adds gas. In this case, the electronic stabilization program does not allow this, since it is programmed in this case to reduce the engine torque, and also does not allow the supply of fuel in large quantities.
For such motorists in many cars equipped with a system of directional stability, a button is provided to turn it off. It happens that instead of a button, you need to perform a sequence of several actions to disable it. Installed ESP systems have the ability not to turn on instantly, but with a time delay. This enables the driver to independently make decisions in unusual situations on the road.
If you are not a professional racer or your driving experience is not very great, then it is not recommended to disable the stability control system. Since security has a higher priority in your case. If your car is equipped with ESP, you can feel confident on the road as a driver. But don't play with the laws of physics. ESP is designed to minimize emergency situations, not completely eliminate them and not put yourself in danger again.
How important is ESP, said BOSCH:
Many of you have probably heard such a letter combination as ESP, which is an abbreviation for Electronic Stability Program, literally "electronic stabilization system", meaning a system of dynamic vehicle stabilization. This system can also be denoted by the following letters: DSC, VDC, DSTC, ESC, VSC and, as you know, ESP - different manufacturers assign their own letters to it, but the essence does not change.
The main task of this electronics is to control the lateral dynamics of the car, and at the right time, preserve the trajectory of movement and directional stability, as well as stabilize the position of the car during maneuvers. That is why it is often called the "system of maintaining exchange rate stability" or "anti-slip".
How ESP works.
The stability control system is connected with the engine control unit of the vehicle, its traction control system and ABS, more about the anti-lock braking system. In fact, all these components in the complex make up a single system of counter-emergency measures. The ESP system itself includes a controller unit (which processes all signals) and various sensors (steering position, brake pressure and wheel speed, and others).
The main and most important are the two main sensors - the lateral acceleration sensor, also called the G-sensor, and the yaw rate sensor. They are the ones who detect the occurrence of lateral slip, evaluate it and transmit further instructions. The block controller evaluates these signals by comparing them with those set in the program. It is thanks to the sensors that ESP knows exactly what the car's speed is, the steering angle, the number of engine revolutions in a given second, whether there is side slip and other driving characteristics. If the movement of the car begins to differ from that calculated in the program, then this block understands this as a risk of an emergency situation, and takes action to prevent it.
These actions consist in selective wheel braking. It will be one wheel or several, front or rear, external or internal to turn, the system decides for itself, focusing on the situation. The braking itself is carried out through the ABS hydromodulator, which creates pressure in. At the same time or a little in advance, a signal is sent to the engine control unit, the fuel supply is reduced, and, therefore, the torque on the wheels decreases.
Moreover, the ESP system always works, regardless of what mode the car is in: acceleration, braking or movement along the knurled one. The most interesting thing is that in each specific situation and in accordance with the type of car drive, the system works differently. I will give an example: the angular acceleration sensor detected the beginning of the rear axle skid when cornering, the control unit reacted to this information by reducing the fuel supply, if these measures did not help, the system brakes the outer front wheel with the help of ABS, and so on.
Incidentally, the ESP system in vehicles with an electronically controlled automatic transmission is even capable of correcting the transmission by downshifting or engaging. Great system, isn't it ?! But experienced drivers, accustomed to driving at the limit of their capabilities, do not like this system, they say, on the contrary, it interferes with them. After all, situations may arise when, in order to get out of a skid, you need to throttle well, but the electronics do not allow this. Fortunately, for these professionals, many vehicles are equipped with a forced shutdown feature. And in some car models, in general, the system itself provides for the admission of small drifts, which allows drivers, so to speak, to misbehave, but in the event of a really dangerous situation, the ESP stabilization system will come to your aid.
Thus, today it is impossible to imagine a comprehensive active vehicle safety system without ESP. It allows you to correct many of the mistakes made by motorists in driving a car. Thanks to her, we do not need to master the skills of extreme driving, we just turn the steering wheel in the right direction, and the car then does everything for us. All this cannot but rejoice. But this does not mean at all that there is nothing to be afraid of. The laws of physics have not yet been canceled. And although ESP can reduce the risk of many accidents, the driver should always have a head on his shoulders.
The vehicle stability control system in your car can play the role of a key factor in keeping you alive in the event of an emergency. System of exchange rate stability, or as it is also called dynamic stabilization system maintains controllability and stability of the machine, calculating in advance the possibility of a critical situation and eliminating it.
ESP history
The year of creation of the ESP system could be considered 1995, even if only two years later it declared itself more loudly, at the time of the debut of the first compact micro-veneer from the company Mercedes-Benzcalled A-class. During the design of this model, a number of very serious mistakes were made, which greatly influenced the tendency of the car to roll over when performing maneuvers, even at low speed.
In Europe, where pedantic people have long been "turned" (in a good way) to safety, a serious scandal erupted. The production of Mercedes-Benz A-class cars was temporarily suspended, and cars that had already been sold were recalled for troubleshooting. - withdrawn to eliminate deficiencies. Engineers daimler-Benz seriously "took their head" and began to solve this difficult task.
How can one solve the problem with its stability in this car, beloved by the consumer, without redesigning it yet? And voila! The beginning of 1998 was marked by the solution of this problem. A-class cars from -Benz has been equipped with a suitably tuned eSP system.
In addition to the A-class models, the ESP system is fitted as standard in the MercedesS-class, E-class and others. These cars use ESP and exclusively from the undisputed leader and favorite in this area - Bosch. ESP systems from Bosch are also installed in such giants as Porsche, Volkswagen and many others.
Operating principle
The main task of the electronic stabilization system ESP is to align the vehicle in the direction of the front wheels. ESP equipped vehicle contains:
Sensors that determine its position in space;
Wheel rotation sensors;
A sensor that determines the steering angle;
The pump that controls the brake lines of the wheels;
ECU - electronic control unit. It "polls" each of the wheel sensors at an astonishing rate of up to 30 times per second. The ECU also refers to the steering and axle rotation sensors - Yaw Sensor.
The ECU processes data from all control sensors. If they do not converge, ESP forcibly takes control of the fuel supply and braking system, aligning the vehicle in the direction of the front wheels. What matters is that electronics are not that smartto know where the safe part of the road is next, so you have to steer the wheels yourself, thereby helping the ESP do the rest of the work.
At first glance, it may seem that experienced drivers do not need to use this system, because in an emergency they can rely on their skills, confidence and experience. But this is a big mistake! In an emergency, the ESP correctly adjusts the fuel supply and selects the right wheelsto brake, which are needed to stabilize the vehicle.
If the situation arises that the front wheels are going to demolition, because entering a turn determined the excessive handling of the car, the ESP system applies the rear brakes by braking the wheel that lies on the inner turning radius. This action will align the "front" of the car going into demolition.
The opposite case may also occur, when the car is poorly controlled and a slip occurs in a corner with a skid of the rear of the car. In this situation, ESP applies the front brakes, braking the wheel in the outer turning radius.
Some drivers believe that ESP interferes with driving. We want to refute this and prove that it is 100% wrong. First, in any case, a person with all his controlled physical capabilities (now we are talking about ordinary people without any phenomenal abilities: radiation, a bite of a radioactive spider, etc.) cannot act the way the ESP electronics does. Secondly, an elementary test of your strength on the ice training ground You will be immediately dissuaded otherwise.
At high speeds, the chances of not flying off the track are much better for cars equipped with ESP than without it. Thirdly, people who believe that the stabilization system is superfluous in a car are simply violating elementary physical laws, not knowing how ESP works. It's just enough to understand the main principle of ESP in order to change your opinion to the opposite in practice.
The developers declare that such situations cannot arise on the road where ESP can harm, only hopeless ones can happen.
ESP device
Structurally, ESP consists of a system of sensors located on the axles and steering gear that monitor the vehicle's position on the road.In addition to sensors, ESP consists of:
Accelerometer, which determines the position of the vehicle in motion;
The main controller, consisting of a pair of microprocessors with 56 KB of memory each.
The effectiveness of ESP lies in its use in conjunction with ABS, EBR and ASR systems to ensure active vehicle safety.
Bosch - the world market leader in the production of ESP, added new useful properties to it, which are designed to increase the safety and comfort of the car. So ESP, at its request, can be equipped with the following subsequent functions:
1. Electric filling of the hydraulic system. In the event of a sudden removal of the leg from the accelerator, the system will conclude that an emergency is possible. In this case, in order to reduce the response time of the brakes, the electrohydraulics itself decides to bring the pads to the discs.
2. "Self-cleaning" brake discs. In rainy weather, the working surface of the discs can be covered with a thin layer of water. So that it does not become an obstacle at the time of emergency braking, the pads will lean against the disc, removing the layer of water, at a certain period of time.
3. "Soft" stop. This function is designed to make the stop smoother. This is achieved by systematically decreasing the fluid pressure in the hydraulic circuits as the vehicle stops.
4. Regulation of traffic on uneven road surfaces. Prevents the car from rolling on slopes when driving backward.
5. "Stop-forward". This feature enhances cruise control by adjusting the distance to the vehicle ahead. Based on the information received from the sensors, the system can stop the car in traffic jams and analyze its further movement without the participation of the driver.
6. Braking automatically during parking. This is an electronic analogue of the "handbrake", which does not use separate wheel brakes. To activate it, it is enough to squeeze the brake to the floor by pressing the corresponding button of the electrohydraulic module. This will give the action will give some command to keep the required pressure in the circuits until a new order is received from the driver.
What else can the craftsmen-engineers who create automotive systems offer in the future, it is difficult to guess, it remains only to be lost in conjectures and dutifully await new "enhancers" of safety and comfort.
Manufacturers
Electronic stability control systems are manufactured by such major manufacturers:
Robert Bosch GmbH is the largest manufacturer of ESP systems. They are released under the ESP brand of the same name.
Bendix Corporation
Continental Automotive Systems
Mando corporation
Other names
The electronic stability control system ESP has different names for different car manufacturers. Here are some examples:
ASC (Active Stability Control) and ASTC (Active Skid and Traction Control MULTIMODE) - Mitsubishi.
ESC (Electronic Stability Control) - Chevrolet, Kia, Hyundai.
ESP (Elektronisches Stability Program) - Chery, Chrysler, Fiat, Dodge, Mercedes-Benz, Opel, Daimler, Peugeot, Renault, Citroën, Volkswagen, Audi.
VSA (Vehicle Stability Assist) - Acura, Honda.
DSC (Dynamic Stability Control) - BMW, Jaguar, MINI, Mazda, Land Rover.
DSTC (Dynamic Stability and Traction Control) - Volvo.
Modern security systems in a car go through a constant path of improvement since their widespread introduction into serial use. Most of them were developed and initially implemented in Western Europe or North America. These include ESP, what it is in the car, we will analyze it further.
The story begins with a patent in 1959. At that time, no one knew the concept of “directional stability system”, what it was, and the module was called a control device. The author of the patent was the reputable Daimler-Benz. After that, it took almost 35 years of work to implement the development in real production cars. Although before that there were attempts to introduce at that time a not so perfect and rather cumbersome program to stabilize the movement of a car.
Since 1995, the owners of the stylish Mercedes-Benz CL 600 coupe were the first to know what a CAP in a car was. At that time, it contained 11 different elements, unlike today, where their number was reduced to four ... Some time later, the system became mandatory for the company's transport, which has the classification of SL and S.
Until 1998, the serial installation was carried out on class "A" cars, but the cars were often recalled by the company, since the optional module caused certain difficulties. A year later, everything was back to normal, and ESP was included in the basic equipment of most model classes.
Bosch is rightfully considered the European favorite in the production of stability control systems. It implements its products on the products of such recognized world leaders as Volkswagen, Porsche, BMW, Audi, etc.
You need to know that the installation of ESP units on vehicles since 2011 is a necessary procedure when new cars leave the assembly line in the region of the European Union, Canada and the United States.
Before explaining the operation of the ESP stability control system, what it is in a car, you need to understand the terminology. After all, it is also called the dynamic stabilization system. Also, various global companies engaged in the production of vehicles use their own developments in this area and use a personal designation.
There are various abbreviations of auto companies to describe the system, which we will decipher:
- ESP (Electronic Stability Program);
- VDC (Vehicle Dynamic Control);
- VSC (Vehicle Stability Control);
- VSA (Vehicle Stability Assist);
- DTSC (Dynamic Stability Traction Control);
- ESC (Electronic Stability Control).
If one of these designations is included among the functions of the purchased car, then this is an excellent signal for the driver.
What is ESP
On a slippery road, the car often behaves in an unpredictable manner. Even an experienced driver is not always able to react in a timely manner to external negative factors. Transport is capable of skidding. Further, he loses control and the level of his maneuverability decreases. In such a case, the ESP helps to ensure stability on the track.
The main task of the system is to create conditions for the car to go where the steering wheel is turned. In this case, skidding is excluded. The module uses a variety of sensors. Their task is to track the direction of movement of the vehicle based on the position of the steering wheel and the degree of pressing the gas pedal. The control unit also processes the received data regarding lateral accelerations and the current orientation of a possible skid.
Directional stability helps the driver during a random extraordinary situation, as ESP works in the car, keeping the dynamics of the car under control. Not only skidding is blocked, but side sliding is also not allowed. In fact, the system helps to maintain the course set by the driver, maintains the trajectory of the current set route and helps stabilize the car during any maneuver.
The CAP is relevant for roads with poor coverage, where the risk of running out of control increases significantly. Often this is exactly what they call it - "anti-drip".
How it works technically
Modern ESP belongs to active high-level safety systems. It consolidates several subsystems in itself:
- antiblocking ABS;
- distribution of braking force EBD;
- anti-slip ASR;
- blocking the electronic differential EDS.
The actuator is a hydraulic module. Synchronously configured sensors and blocks are also required attributes:
- directional stability sensor;
- wheel rotation sensor;
- a sensor that monitors the angle of the steering wheel;
- a hydraulic pump through which commands are sent to the wheel lines;
- electronic control unit.
The ECU sends requests and receives feedback from sensors about 30 times per second. This module takes additional readings from the steering wheel rotation sensor and other control sensors. If the obtained parameters fall under certain characteristics, then the ESP subordinates to itself the supply of gasoline or diesel fuel, as well as the operation of the brakes. Synchronization makes it possible to align the vehicle in the direction of travel of the front wheels.
You need to know that today the electronics adapts to the actions of the driver, and the person driving the vehicle directs the front axle. ESP only helps him achieve the desired result.
Wide functionality
In extreme conditions, the ability to influence the brakes is sometimes a decisive factor in vehicle stabilization. When the front axle starts to slide to the side, the rear brakes are forcedly applied. The wheel that is located inside the turning radius is blocked. Thanks to this state, the front of the car is leveled and not worn out.
There are situations when the rear axle is pulled off the track during a turn. In this event, the ESP blocks only the front axle. This is especially true for the side located on the outer turning radius.
There is a common misconception that ESP prevents many drivers from driving a vehicle. The statement is fundamentally wrong, since a person will not be able to make decisions and implement them at such a high speed, as electronics and hydraulics do.
Important! The developers of the implemented methodology assure that there are no situations on the road when the CAP is capable of negatively affecting the current situation.
In some cases, the owners of this module can expand its capabilities. For this, a set of progressive options is provided:
- Electronic hydraulic systems. When there is a sudden release of pressure from the gas pedal, the electronics perceive the event as an emergency. To speed up the process, the brake pads are as close to the discs as possible.
- Self-cleaning brake discs. When driving through puddles or during bad weather, a small wet coating forms on the surface of the discs, which can reduce the coefficient of friction between pads and discs. Periodically, the pads, at the command of the electronics, independently remove the layer of moisture.
- Soft stop function. The service contributes to a smooth decrease in the speed of the vehicle. This is facilitated by a decrease in pressure in the hydraulic circuits during the braking process.
- Adjustment aid on uneven, angled surfaces. Unauthorized rolling back of a car on a slope during a stop is blocked.
- Stop-forward. The option is in addition to the cruise control. Thanks to it, the distance from the car in front is monitored. The function is convenient for operation in traffic jams and in some modifications can work without a driver.
- Auto braking when parking. It is an electric analogue of the handbrake. To activate, squeeze the pedal all the way, and then press a special button that activates the hydraulics.
Engineers do not stop at developments in this area, so the system will be improved further. For car enthusiasts, of course, this only pleases.
