This system further improves vehicle stability and steering response when driving on slippery road or detecting changes in the coefficient of friction between the right and left wheels during braking.

Operation of the VSM system

During VSM operation, steering wheel control is possible. If the VSM system is functioning properly, a slight pulsation can be felt in the vehicle. This is the result of brake control and does not indicate a malfunction.

The VSM system does not function in the following situations:

Shutdown the VSM system

To turn off the system, press the ESP OFF button, the ESP OFF indicator () will also turn on.

Fault indicator

The VSM system can be deactivated automatically (in addition to pressing the ESPOFF switch). This automatic deactivation indicates a malfunction in the power steering system with electronic control(EPS) or VSM system. If the ESP indicator () or the EPS warning lamp remains on, have the system checked by an authorized Kia dealer.

FOR YOUR INFORMATION

• The VSM system is designed to facilitate cornering at speeds over 15 km/h (9 mph).
• The VSM system is designed to assist braking on uneven roads at speeds over 30 km/h (18 mph). The surface of such roads is made of materials with different coefficients of friction.

CAREFULLY

• The stability management system (VSM) is not a substitute for good safe driving, but is only an additional feature. The driver must always control the speed and distance to the person in front vehicle. Always keep a firm grip while driving. wheel.
• your vehicle, even if installed system VSM always listens to the driver. Always follow normal driving safety precautions, including choosing your speed according to traffic conditions, including inclement weather and slippery road surfaces.
• If your vehicle is fitted with wheels or tires of different sizes, the VSM system may not function properly. Replacement tires must be the same size as the original tires.

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author Kind, but sometimes evil! asked a question in Choice of car, motorcycle

What is an integrated active control system in a car and is it worth overpaying for it when buying a car? and got the best answer

Answer from F[active]
Integrated Vehicle Dynamics Management System
(Vehicle Dynamics Integrated Management, VDIM)
VDIM is an electronic vehicle stabilization system in which all known systems are integrated active safety, power steering and engine management.
Having complete information on the current status received from sensors located throughout the vehicle, VDIM not only optimizes the operation of the anti-lock brake system, brake force distribution system, anti-skid and traction control systems, but also improves the main dynamic characteristics car.
VDIM simultaneously controls power plant, transmission and braking system in accordance with the driving conditions, and also stabilizes the vehicle's behavior on a road surface with a low grip coefficient.
The new dynamic management system is not as "intrusive" as conventional stability control systems, but it is also much more effective: if conventional safety systems are activated immediately after the vehicle's technical limit has been reached, VDIM is activated long before this moment. As a result, the scope of active safety systems is expanded, and due to this, the behavior of the car is smoother and more predictable, since these systems act more precisely, more gently and flexibly.

Every day the road can present new challenges, but you will always maintain control of the car on difficult surfaces, climbs, winding roads and during unexpected maneuvers of other drivers thanks to the progressive electronic system control.

Feel the absolute security Sorento Prime. The rigid power structure of the body is created using high-strength steels, and six airbags are included as standard equipment. The highest level of safety is confirmed not only by laboratory crash tests, but also by simulations of real collisions.

360° view function

The system facilitates parking and maneuvering in tight spaces. Thanks to four cameras, the display shows a view of the car from above, which helps the driver to check the vision of the situation from his own angle in any direction while parking or maneuvering.

※ Operating conditions: ignition on, shift lever in D/R/N, speed up to 20 km/h.

ESC (Stability Program) controls the speed and direction of the vehicle.

At the same time, the system constantly compares the received parameters from the sensors (ABS sensor, yaw, acceleration, steering) with the actions of the driver and works out the loss of vehicle traction, which may cause a skid.

When the system (ESC) detects a loss of control, it immediately transmits an individual braking force for each wheel.

Anti-lock braking system (ABS) makes sure that friction is not lost between the wheels of the car and the road surface when braking. When the driver suddenly presses the brake pedal, there is a possibility that the car will go out of control and skid on the road. the main task anti-lock braking system- to avoid such a situation.

Lift Assist needed when the car starts moving on a rough road. The system ensures that the machine does not roll back on steep slopes, and has a number of significant advantages. Firstly, with its help, the car on the rise is more likely to start moving, which saves the driver from having to use parking brake. Secondly, the safety of both the driver and pedestrians is increased.

How the system works such is that when the driver stops pressing the brake pedal, the decrease in pressure in the brake system begins to gradually slow down. The lift assist system will come into action when several factors coincide: the slope of the road exceeds 5%, the car is started, and the driver presses the brake pedal.

Kia Sorento Prime is equipped with front and side airbags to protect the driver and front passenger, as well as two curtain airbags to protect everyone in the cabin.

Emergency braking system I need to ensure that in a dangerous situation on the road, the brake mechanism of the car operates with maximum efficiency. According to statistics, during the operation of the system emergency braking the braking distance is reduced by 15-20% percent. This is sometimes enough to avoid a serious collision, crash or accident.

System BAS - by the speed with which the driver presses the brake pedal, determines whether an emergency braking situation has arisen on the road. V the electronic unit control, data on the speed of pressing the pedal are transmitted from the speed sensor of the vacuum booster rod. In the event that the signal value goes beyond the set norm level, the rod drive electromagnet is activated. The brake pedal begins to act vacuum booster brakes - this starts the process of emergency braking. It starts before ABS system.

Emergency Pretensioning System (EFD)

The seat belts on the front seats of the KIA Sorento Prime are equipped with special EFD pretensioners. V emergency The belts are pretensioned to securely hold the driver and front passenger in their seats, providing additional protection in the event of a collision.

ERA-GLONASS emergency communication system

In unforeseen cases, the system will connect you with the operator to clarify whether everything is in order, or call emergency services.

LED headlights with dynamic low beam function

Headlights are able to additionally illuminate the corners, providing better visibility at night. In addition, the swiveling optics adapt to the steering angle, vehicle weight and speed.

In active head restraints a special movable lever is built in, which is located in the back of the chair. When the car hits an obstacle, the momentum pushes the driver into the seat, and their weight presses on this lever. In this case, the countermeasure mechanism immediately begins to work - even before the driver's head leans back, the active headrests move towards it and soften the force of the impact. After that, they take their original position. It is worth noting that for the most effective work, the head restraints must first be adjusted.

Active head restraints are activated when the car collides with an obstacle at low or medium speed, as well as in some cases of a collision with a car from behind. It is in such situations that the likelihood of injury due to the “whip” effect increases.

Integrated Active Management (VSM) helps the vehicle to maintain a stable position during simultaneous braking and cornering, especially on wet, slippery or uneven surfaces, due to the cooperation of the stabilization system and the electric power steering Based on the information collected by the sensors, the stabilization system and the electric power steering come into operation as soon as the car starts slip and return it to a safe trajectory.

High strength steel (AHSS)

V KIA designs Sorento Prime uses over 52.7% high strength steel. This unique grade of steel is used to reinforce the front, rear and sides of the car, as well as in those areas of the body that experience maximum stress.

Rear subframe

The rigid rear subframe ensures high stability on the road.

Vertical rear shock absorbers

Vertical arrangement rear shock absorbers helps to mitigate the negative effect of driving on rough roads and provides even more comfort in the cabin.

Intelligent system automatic parking SPAS

This system is designed to help you with both parallel and perpendicular parking. It automatically recognizes a suitable parking space, turns the steering wheel and estimates the distance to other cars. All you have to do is hit the gas and brake and shift gears of your Sorento Prime.

Blind Spot Monitor (BSD)

The blind spot monitoring system uses sensors that scan the sides and rear of the vehicle for dangerous proximity to other vehicles in a zone of zero visibility. If an object is detected, the driver will be alerted by a visual signal on the side mirrors and center display. If the driver has turned on the turn signal and another vehicle is detected in the blind spot on that side, a warning horn will sound.

One of the main problems facing automakers is to improve the safety of the car, including while driving. To do this, the machines are equipped with various devices that help the driver to cope with the management in the most difficult situations. One of them is the VSM integrated active management system.

About forces and moments

The torque developed by the motor is sent to the wheels, and the car starts to move. So it is very simplified to describe the process of its movement. However, when starting to move, maneuvering and braking, a wide variety of forces act on the car, and the nature of their impact depends on the speed, road conditions and driver actions.

Sometimes these actions are erroneous and incorrect, which may result in an accident. To avoid this, the developers have come up with more than one electronic device assisting the driver in difficult conditions. Without touching on all of them, it is enough to mention the most famous and well-known:

• ABS - anti-lock braking system;
• ESP - exchange rate stability system (it has a different name for different manufacturers - ESC, DSC, DTSC, etc. The most common abbreviation ESP will be used in the text below);
• TCP - traction control system.

The operation of any of these active control devices is based on the constant monitoring of signals from sensors. According to them, the controller determines the discrepancy real mode the movement of the car to what it should be, he also takes the necessary measures, for example, he slows down, slows down or unlocks the wheel, changes the mode of operation of the engine.

Active Management System VSM

It is worth mentioning another, somewhat specialized, but useful integrated management system VSM. By itself, it does not work, only complete with ESP and ABS. If ABS provides stability during braking, TCP during acceleration, ESP prevents lateral displacements and stabilizes the position of the car during maneuvers, then the VSM system is, as it were, integrated, combining the work of all other components and the actions of the driver.

The VSM system integrates the steering motor, ESP and ABS. According to manufacturers of cars with VSM, the stabilization control system counteracts erroneous driver actions.. those. if they perform the wrong actions to drive the car in a critical situation, then VSM will counteract them.

In a more understandable presentation, this means that if the driver turns the steering wheel in the wrong direction during the maneuver, this will require significant effort from him. Whereas at correct movement steering wheel doesn't do anything.

Tasks that VSM solves

If we try to generalize what tasks such an integrated system solves, we can note the following:

1. relief of effort on the steering wheel when parking and maneuvering at low speed;
2. increase in steering wheel torque at high speed;
3. increase in the reactive force of the wheels when they return to the middle position;
4. adjustment of the position of the front wheels when driving on a road with a slope, side wind, pressure difference in the wheels;
5. increasing stability (exchange rate).

Thus, the VSM system is engaged in stabilizing the position of the car on the road in the process of movement in the same way as ESP, ABS and other devices similar in purpose. The difference between them will be that VSM through the electromechanical power steering affects the steering wheel, not the brakes. In other words, the impact on the steering wheel and brakes is combined.

This is especially true when acceleration or braking occurs on different surfaces (one wheel on ice, water or other surface, the other on asphalt). As a rule, as a result, the car begins to pull to the side. To correct the situation, control signals are sent to the steering mechanism to correct the position of the car. In principle, the situation considered is typical for the operation of such a control system. The possibility of a skid may occur again during sudden maneuvering, in which case VSM will also help keep the vehicle from skidding.

It should be noted that such a device is not included in standard equipment car.

An active control system such as VSM primarily ensures the vehicle stays on course when driving on different surfaces under different wheels. In this case, not only signals are generated for braking an individual wheel, but also for steering, thanks to which the car continues to move along a given course, and it is possible to avoid skidding.

Over the past couple of decades, leading industry leaders in the design and manufacture of automobiles have faced a serious problem of low driver readiness to drive a car in high-risk conditions. Many facts and police statistics show that the ability to drive a complex, heavy and powerful car so as not to kill themselves and others, the average driver is no longer enough.

The first, focused on a comprehensive solution to the problem, was the integrated active management system VSM. In fact, there was a combination of a new computer unit with a system of sensors and control modules for anti-lock brakes and a system for ensuring exchange rate stability.

What functions are assigned to the integrated active management system VSM:

• obtaining from all available vehicle sensors the most reliable information about the current state of the vehicle;
• comparing the objectivity of the ABS and ESP control commands with the tendencies of the driver's actions and comparing them with the optimal possible options embedded in memory;
• indirect intervention of the VSM in the operation of the steering wheel, engine, brake system and gearboxes.

Important! The VSM system differs from the many options for intelligent assistants in that it helps the driver to act, not limited to information or recommendations.

How Integrated VSM Active Management Works

The idea of ​​introducing an analogue of an autopilot that helps the driver to act, and not just inform, has been in the minds of developers for quite a long time, but the full implementation in an integrated form of VSM, as an active control system, was received only after an increase in the power of control controllers and the introduction of electric power steering.

Of course, the VSM system will not turn the steering wheel, steer and maneuver instead of the driver, it does not yet have such an opportunity. And if an obstacle arises on the way or the rules of DD are grossly violated, the active control system will not be able to help. Although more recent developments with an integrated circular radar and a GPS system may well be able to make the right decision by participating in active driving.

The main task, as an integrated or combined structure, of the existing VSM system is to help actively intervene in the operation of the electric power steering. VSM, as a control system, is engaged in stabilizing the position of the machine while driving. While the stable position of the car is considered the main criterion for its safety.

What the driver can expect from the active management of the VSM system:

• an increase in resistance or the required applied force on the steering wheel when driving at high speed. The rudder loses sharpness, and thanks to this, course control becomes more balanced and smooth. Even if you want to try to jerk the steering wheel sharply, the VSM system simply will not allow you to do this, instantly increasing the “weight” of the steering wheel;
• taxiing the front wheels if there is a risk of the car falling into a skid, skidding or a sharp decrease in the grip of one or two wheels with the road surface, problems with the tire or suspension;
• integrated impact on ensuring stability along the trajectory of motion.

In addition to the steering wheel, the system actively uses the capabilities of the brakes, both independently and through the anti-lock module. For the successful operation of the VSM unit, the partner also needs the ESP module, which is responsible for exchange rate stability, and a slip control scheme.

A classic example of successful VSM work, is the passage - a snake around a number of obstacles or movement at high speed with a controlled skid in a sufficiently deep turn. Such tests were not chosen by chance, because they make up approximately 80% of all shunting permutations of the car on the road.

Theoretically, in a skid, the VSM should redistribute torque to the outer pair of wheels and slow down the inner pair to turn a couple of degrees in the direction opposite to the direction of the skid. So the car is guaranteed to be spared from the threat of a collision with the curb and smoothly complete the turn.

If braking is found to be ineffective or even harmful, the VSM system will disable the ABS, or brake one or two wheels individually. In steering wheel control, the driver will feel that turning in the “forbidden” direction will be prohibitively heavy, and in the optimal direction it will be as easy as possible to accelerate the turn.

This is the so-called system of intuitive response to the situation. In a critical situation, the driver simply has no time to think and analyze, he has to instinctively make decisions, and often the hint of the VSM unit comes in handy.

With a long journey, after 4-5 hours of driving, fatigue will inevitably begin to accumulate. In this case, the VSM system will significantly relieve the driver and insure to a greater extent, avoiding risky situations.

What are the good and bad things about VSM

The main postulate of the use of various electronic assistants in driving a car is based on an unshakable rule - the most advanced, active and integrated system should not create discomfort in driving. VSM is no exception in this.

Its invisibility in the car has been brought to such a state that many buyers of new cars equipped with an integrated VSM active control system do not notice it even after running the car in and simply begin to doubt its presence.