The stability system of the car

Recently, for ordinary motorists was an unusual presence in the car electronic systems support automation. Today use many such assistants, some of whom take an active part and in direct control of driving. One of the most significant can be called the stability control system responsible for the correction of the torque of the wheels. It is marked by this technology like ESC (Electronic Stability Control) and is most often available as options for models not lower middle class. However, some automakers are beginning to offer similar devices for budget transport.

Technical implementation

A Mechanism to ensure exchange rate or dynamic stability is a set of functional components, including control unit, sensors and hydraulic Executive bodies.

Sensing elements (sensors) in the process, record the parameters of the moving car and appreciate the actions of the driver, sending the corresponding data to the control unit. For example, take into account the angle of the steering wheel, stop-signal, the wheel speed and the pressure level in the brakes. Further, the control unit stability control on the basis of received signals sends commands to the actuating equipment. At this stage, involved valves, pressure switches in the brake system, optical elements, etc.

A Hydraulic device, depending on the settings, can control the behavior of the car on the road, acting inter alia on the gear box.

Principle of operation

The Moment the entry system in the management process can be considered potentially dangerous or emergency situation, the risk which the stabilizer determines by comparing the movement of the machine and the actions of the owner. So, if the stability system detects the difference between the actual performance status of the car and previously established, the situation will be deemed as uncontrolled and partly control will go to the ESC modules.

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It is important to note the significance of the parameters, which are taken as critical. The user pre-configures them, and if in the process of driving for one reason or another they are violated, the system enters into operation automatically.

Now another question – how to achieve immediate control? Much depends on the specific version, but the standard electronic stability control ESC implemented through the following actions:

1. Change the torque of the power unit.
2. Braked wheels (some or all separately).
3. Correction degree the shock damping (if the car is equipped with adaptive suspension).
4. Change of steering angle (if equipped active steering).

Additional functionality

The modules of ESC can be different configuration – from basic to advanced with a specific set of subsystems. In particular, can be optionally added to the brake booster, the device to remove moisture, proofreaders temperature, knots, prevent car overturning, etc. it also Provides for the possibility of expansion of functions at the software level. This applies to electronic settings change the torque or power-sound and light signals.

For machines of the engagement device, the system stability can be augmented and stabilization of the vehicle. This mechanism is used to prevent oscillations when driving with a trailer.

Active means of increasing the reliability of brakes usually focus on the regulation of their power functions, but ESC also allows you to adjust the insufficient adhesion between the brake disc and the pads.

Differences from the ESP technology

Fundamentally the systems are few, and key objectives coincide completely. It is the prevention of drift, support of the trajectory and, in General, removing any risk of collision. The only difference is in the methods of achieving these goals. Thus, the system of exchange rate stability ESP in a greater degree focused on software regulation of movement parameters and antipromotional conjunction with the security module.

In terms of technical devices, technologies, too, for the most part the same. In the set of ESP shares the same electronic control unit and sensors, which are called G-sensors. That is, the emphasis is on quality and operating parameters and not on the practical means of changing them. In the process control system of exchange rate stability ESP intervenes not at the expense of its own infrastructure, and by changing the current functional performance of the engine, brake systems and devices, responsible for active safety, – the same plate module.

What you need tothe installation of the ESC complex?

It is because of the interaction of the stabilizers with adjacent systems security for such equipment will require the appropriate kit. Depending on the type of ESC and set of functional tasks, may require pre-installation of anti-lock braking system and engine control unit.

There are nuances in the use of electronic stability system on cars with manual gearboxes. Full management control by the regulation of the transmission node in this case will not be provided. Also pre-calculated the connectivity to the onboard electrical devices, including sensors.

The shortcomings of the system stability

The modules ESC many benefits that are associated with the security of the driver. In addition, this assistant is an ergonomic addition, in some cases for easier driving.

But there are situations in which this module will present the negative sides. For example, if an experienced driver well-established pattern will want to get out of a skid by increasing gas. In this case, the stability of the vehicle is not allowed to do, restricting the flow of fuel and cutting torque. The answer will be a button to disable the stabilizer, which is worth remembering in such conflicting provisions.

In conclusion

The system of electronic driver assistance when driving show an example of effective interaction of the program filling the car and mechanics. Every year, advanced auto giant offer new and more sophisticated modifications to such assistants. For example, in the latest versions of the electronic stability program ESC provide the reaction for only 20 MS. And this is regardless of the current speed and driving mode. But, as already mentioned, this technology is available not for all motorists. The owners of inexpensive domestic models, for example, you may purchase, except that as options, and a lot of money compared to other additional equipment.