Riding on a tronic box after mechanics. What is the difference between s-tronic from DSG? Considering the kinship of companies, it really does not make sense to seek serious differences between s-bronide and DSG

On Ford cars, Multimode from Toyota, etc. In this article, we will look at the gearbox S-Tronic, problems, advantages and features of this automatic transmission.

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S-Tronic gearbox: what it is and how it works

So, the S-Tronic box is a preselective robot and is installed on the Audi model. Including that Audi is part of the VAG concern, it becomes clear, the transmission is actually analogous to the famous DSG (Direct Shift Gearbox). However, there are also non-smart differences.

S-Tronic gearbox is usually installed on a car with full and front-wheel drive, and the Audi is often installed a R-Tronic box, which differs from the analogue of the presence of hydraulic drive.

As in the case of DSG, S-Tronic has two clutch disk, which allows you to quickly switch transmissions, the power flow is practically not broken when the switching is achieved, high fuel efficiency, comfort, the acceleration dynamics is improved.

If we talk about the S-Tronic device, you should allocate:

two disks;
two secondary shaft (for even and odd gears);
complex electronic control system (sensors,);
(mechatronics), which is an executive device.

If simply, the C-Tronic Box on Audi is two mechanical gearbox, which are combined in one case. An even broadcasts are implemented on the shaft of one box, while the other shaft is responsible for odd.

There are also two clutch disk. While the car moves on one transmission (even or odd), the corresponding disk works, while the other clutch disc is disabled. However, the next transmission is already selected in advance and is enabled. This is the basic principle of the preselective gearbox.

At the moment of switching, the working clutch is quickly turned off and the second is instantly connected. As a result, the switching of the "Up" or "down" transmission occurs instantly, the driver does not feel jerks, delays, jerks, etc.

To be clearer, let's imagine a car on mechanics, which accelerates from the place on the first gear. For such overclocking, a pair of first transmission gears is involved. The driver will then wait for the clutch and will independently turn on the increased (second or even third).

In the case of a preselative robot while the machine is going on the first gear, the second gear gears will also be engaged with each other, but the clutch will not be included.

After the box thus reaches 6 or the seventh transmission (highest), the switching process will occur in the reverse order. While the machine, for example, moves to 7 transmission, 6 will also be selected and almost turned on. By the way, a robotic box is similar to, where, unlike MCPP, it is possible to change transmissions only in a strict sequence.

As for the mechatronic, which allows you to create the desired pressure in the system and hydraulic cylinders under the control of the ECU, the entire system is configured to achieve maximum transmission efficiency indicators simultaneously with a high level of comfort for the driver. We add that there are also robotic transmissions with an electric drive, however, the electric drive is put exclusively to the budget models of the car.

Pros and Cons S-Tronic Boxes

Having understood what S Tronic is and how the aggregate of this type is arranged, the strengths and weaknesses of this automatic transmission can be considered. Let's start with the advantage of preselective transmission:

high acceleration dynamics, since the transmissions switches for 0.8 ms, and this is very fast. The machine with such a gearbox is smoothly and dynamically accelerated;
noticeable fuel savings (up to 10%) compared not only with hydromechanical automatic transmission and variasts, but also from the manual transmission, which reduces the cost of the maintenance of the vehicle.
the specified box works so that the driver and passengers do not feel the gear shift. By comfort, the preselative robot is close to the variator;

As it may seem at first glance, DSG or S-Tronic boxes, as well as similar analogues of other manufacturers are the best option, since the positive qualities of mechanics and classical machines are most successfully combined. However, in fact, this design has serious disadvantages that do not allow presetative robots to oust other types of automatic transmission.

By cons S-Tronic, it is possible to include high initial cost of the car with a given gearbox, low resource and not enough high reliability of transmission, complexity and high cost of repair, as well as the need to regularly carry out the gearbox.

If we consider that a constructive robot is all the same mechanics, there is no special complaints to the box itself in terms of reliability. However, do not forget that as in the case of mechanics, the clutch is a "consumable".

Also, the device of such a robot implies the presence of numerous servochanisms and executive devices. In practice, these elements deliver a lot of problems with the owners of preselective transmissions.

First of all, in the robot box, unlike MCPP, you need to change the transmission oil more often, and it is necessary to do it correctly. Also with wear, the gearbox can not work as smoothly, jerks can appear, vibration, blows or failures when switching.

In this case, the banal replacement of clutches and oils in the box does not help in many cases, it is often necessary to change the hydraulicock itself, check the state of the preselector, etc. At the same time, the replacement of mechatronics is expensive. Moreover, the new unit also does not always become 100% solution solving.

Let's summarize

As can be seen, a preselative robotic gearbox is a kind of hybrid of MCPP and automatic transmission. On the one hand, the basis is a reliable "mechanical" design, instead of expensive clutch units, etc. are involved, etc.

However, there is also a hydraulicone (mechatronics) and a number of servomechanisms, the box itself works on very complex algorithms. As a result, the design is obtained not only expensive and complex, but also often.

As a result, we note that even taking into account certain shortcomings, the robotic S-Tronic or Audi R-Tronic box is able to provide high acceleration dynamics in combination with fuel efficiency and comfort. As a result, this type of checkpoint is actively installed on AUDI brand cars, which refers to a premium segment.

S tronic- what it is

S Tronic Audi is a robot box with unique properties, opportunities and qualities. The design of the preselective gearbox S Tronic includes two rows of modes (in fact, these are dual shafts with gears from independent mechanical boxes, combined into one mechanism) and two clutches of the clutch, each of which is responsible for the operation of their gears - even and odd rows.

For example, at the time of overclocking the car included the second transmission, then the automation works and instantly moves to the third by opening the clutch disks (even) of the series and connect the following. The transition process to another mode is performed very quickly, while there are no characteristic jerks and delays, the power from the power unit is transmitted by a continuous flow through the preselative transmission to the driving part of the car.

Box S Tronic in section:

Description of the design of a robotic gearbox DSG S-Tronic

Basic working elements of the mechanism:

Clutch discs - 2 pieces.
Secondary shafts -2 pcs. One shaft is inserted into another, each of which is equipped with gears, including even and odd transmissions, respectively.
ECU - automatic system.
A large number of special sensors feeding signals on the on-board computer.
Hydraulic system of executive mechanisms.
Lubrication system.

Constructive features of a tronic box:

longitudinal location of the box in the transmission;
the seventh gear is located at some distance from the first six, which reduces the engine speed;
the presence of a "wet" clutch;
use of hydraulic drives for shifting gear;
the work of two independent lubricants.

Unlike previous developments, where such boxes were installed in car models with a cross-location of the motor, a new unit has a longitudinal connection scheme.

In the preceding structures used dry clutch by type. Here the clutch basket is filled with special, the function of which includes not only lubrication of nodes and parts of the gearbox, but also the heat removal from the working surfaces.

Connected with the clutch mechanism through the hydraulic drive system.

Due to the presence of separate oil systems, the design of the gearbox is characterized by increased reliability. The oil of the first circuit is supplied to the oily pump on the two-way clutch, then on the electronic module of the mechatronics, and then returns to the pump. The fluid circulating inside the second system is designed to lubricate gears gear gears and differentials.

S TRONIC AUDI SPECIFICATIONS:

S Tronic is able to transmit rotation torque from a powerful engine, a value of at least 550 nm;
the maximum rotation frequency of the shaft of the power unit to 9,000 rpm is allowed.

A robotic S-Tronic box is used in all-wheel drive and front-wheel drive vehicles with a powerful engine, developing high revs. Location - Longitudinal, Transmission type - "Quattro". It is often referred to as a preselective box. Most often, the robot stronic can be found on cars of the famous automakers Audi, Volkswagen.

Pros and Cons Boxes Robot DSG S Tronic

The high-tech robotic box has all positive qualities inherent in both traditional mechanical devices and machine guns. Thanks to the electronic control unit running on complex schemes and algorithms, the vehicle management is characterized by increased comfort.

Car owners who have a vehicle with a preselective box of S TRONIC, mark the following advantages of their cars:

Relatively small dimensions and weight of the mechanism.
Improved car dynamics.
Smooth and, at the same time, fast overclocking of the car.
Instant speed switching (time spent no more than 0.8 seconds).
Efficiency (fuel consumption savings - at least 10%).
No clutch pedal simplifies control box.

If some problems arise during operation of the robotic gearbox, the driver receives the appropriate warnings. Thanks to the timely handling of the service center, the repair of the entire device is simplified. With special diagnostic devices, qualified workers quickly find problems arising in the vehicle, and eliminate them in a short time.

Among the noticed deficiencies, the following factors are noted:

relatively high cost of the mechanism, which is reflected in the price of the entire car;
expensive qualified service of the Si-Tonik, since partial or complete oil change, as well as the oil filter should be carried out only in specialized service centers;
complete design box.

With the wear of work units and details of differentials, various negative symptoms begin to appear:

Dips, shocks when overclocking and moving to high speeds.
Vibrations during switching from the first speed.

Tip: Experienced car owners recommend regular oil change in preselective transmission. Upon their authoritative opinion, the maximum mileage between these procedures should not exceed 40 - 50,000 km. Ignoring these recommendations can provoke the failure of friction discs of clutch mechanisms and. S-Tronic uses only the original brand recommended by the automaker. Simultaneously with the replacement of lubricating fluid, it is necessary to replace the oil filter to make the wear elements that are on the metal grid of the filter element, they did not get on the fresh oil ATP.

ATF G052529A2 oil - in the amount of 6 liters.
Filter 0B5325330A.
Filter seal WHT005499A.
Laying of the pallet 0B5321371E.

The premium segment of cars is distinguished not only by the exquisite appearance and the highest level of comfort, but also design innovations. S-Tronic is a modern checkpoint installed on such a segment, in particular, on the car "Large German Troika" Audi.

S-tronic - what it is

Transmission is an essential component of the car. There are many varieties of automatic boxes on the market. These nodes around the world are gaining increasing popularity. It is from the correct work of this detail in many ways the ability of the car to move, as well as the comfort of the driver itself and the safety of motion. One of the most modern destinations in the development of new devices is considered to create robotic preselective nodes in combination with an electronic control unit.

The concept predictive S-Tronic means that the next gear (no matter is: the lower or top) is already included by the system, which is much enhanced by driving comfort, increases the dynamics of overclocking, and also consistently saves fuel.

One of the most progressive is the device with two clutches of the AS TRONIC gearbox. This unit is a further logical continuation of the DSG system from German VAG, which also includes Audi. However, this unit is its own development of the company with a support only on the principle of operation and the layout of its "junior" fellow. This node consists of several parts (which differs from other automatic transmissions):

The electronic control unit of the automatic transmission S Tronic is a mass of a variety of sensors and a single block, which synchronizes the operation of the shafts and clips during the movement of the car. This electronic block of the system is the most important part, since it is the electronic algorithm that allows you to quickly and adequately switch transmissions. In this case, this part is one of the most expensive in repair. S-Tronic sensors are constantly signaling and sent to the main unit of the mass of information about the road atmosphere, speed, motor parameters, driver riding style and other indicators that allow the system to quickly adapt. In addition, the cost of this unit at the failure is quite high. However, in the absence of mechanical damage to the block of the system, the problem with it occurs not often.
The clutch of the unit - 2 clutches are installed in this box that work asynchronously. One is responsible for the inclusion of even gear, the second odd. Thus, smoothness and high switching speed is achieved, which is less than 1 second. The data of the nodes is managed by an electronic control unit.
S-Tronic aggregate shafts perform mechanical work inside the box by moving torque and clutch control. Also in the unit there is a hydraulicone, which is responsible for working pressure within the transmission. In low-cost versions of this type of robotic box, an electrical analogue is installed, which is less effective in its indicators. The operation of this unit also manages the electronic unit.

This system allows you to simplify the process of controlling the car, as well as save fuel, besides, such boxes are easily "digesting" a large torque in contrast, for example, from non-dusty competitors (variastors), which allows you to aggregative them with powerful engines of the Audi line. The system has received the most more distribution in conjunction with the Audi A6C model of the Tronik, which made it possible to significantly increase the total sales.

Important! Despite the entire high-tech S-Tronic unit, this system is expensive both in the acquisition and subsequently maintenance, but only the presence of a robot will fully disclose the potential of powerful German engines. This S-Tronic unit is very complicated in its design.

Pros and Cons S-Tronic gearbox

Like any complex unit, such a box has both its advantages and cons. The positive features of the S Tronic Audi A6 C7 system include:

Fast change of aggregate gear due to the constructive features of the transmission and the operation of the electronic unit. The average reaction time of the unit, both when switching to the upper and lower steps, is about 0.7 seconds.
Significant fuel economy of the unit in comparison with competitors. Based on the design of the system itself, in fact such a box is mechanical with an electronic control unit, which squeezes the clutch independently (one of two) and switches the transmission. This allows you to reduce fuel consumption, regardless of the class of the car, by an average of 15-18%, which also depends on the correct operation of the S-TRONIC electronic unit.
Dynamics of acceleration of the car. Given the time of the reaction of the box when switching, the dynamics of overclocking up to 100 km / h does not differ from mechanical competitors and is quite superior to automatic analogs - hydrotransframes and variators. In aggregate with powerful engines, the difference with the bridge from the classic automaton lies in a more dynamic acceleration.

Despite the technological advantage of the box and indisputable positive parties, this box has negative features that can become an obstacle to the acquisition of the aggregate for some category of owners. These include:

Uncomfortable switching of the unit in traffic jams. This feature also comes from the design. When moving at low speed, a long time, the S-Tronic clutch can overheat that when switching can lead to shocks, kicks, as well as to chaotic "jumping" from 1 to 2 transmission.
In comparison with competitors, a smaller resource of the main parts of the system and, above all, the clutch, which some drivers have to be changed even before reaching 100 thousand km of run. Constructors are constantly improving the unit and this part of the system, but at the moment at the general level of reliability, a robotic box with a threshing Audi has certain problems with long-term reliability.

Important! When choosing a used car with such a gearbox, close attention should be paid to the unit defecting, as often such cars are sold with problem boxes.

Differences S-Tronic and DSG

Constructive aggregates of the S-Tronic and DSG system are very similar, but there is a single significant difference - in the block of the PPC itself, DSG has a less reliable electrobelle, and the product from the Audi works hydraulicock. These devices adjust the oil pressure and line up the algorithm when the signals are applied from the control device. The hydraulicock of the system is considered a more complex and perfect design, while its reliability is tested not only by the driving tests, but also practice. Cases of failure of the unit of this node in practice are single and most often occur when the system itself is incorrect.

S-Tronic Adaptation

Another advantage of this unit is the training mode of the box itself. The electronic unit of the unit control, accumulating information about the driver's ride manner using various sensors, is trying to adapt to his manner. In certain cases, this is expressed:

with an aggressive driving style of Dronic automatic transmission, after passing the training program, it will be faster to fasten the right upper gear, this will affect both the sensations of overclocking dynamics and comfort;
with calm movement, mainly in traffic jams, the box will try to drive on low gear as long as possible to avoid pinks.

The system learning mode is counted at the time of the engine start. One cycle takes 8-10 such launches.

S-Tronic Diagnostics

The diagnosis of such a gearbox must be engaged only in the certified service. Given the technological complexity of the unit, checking the state of all systems is carried out in several stages:

Checking the electronic unit control unit for various errors is carried out using only certified equipment. This diagnostics helps to identify various errors, find out the state of most sensors and components of the PPC.
The diagnosis of the mechanical part of the S-Tronic is most often carried out when the symptoms of the malfunction are comprehensively together with electronic check. This method involves the opening of the CAT body, inspection and defecting the components.

Important! You should not check this equipment using primitive scanners to read errors. The incorrect operation of the scanners may not identify most problems, and the electronic block of the box will record the wrong signals, which can lead not only to the loss of the warranty, but also to problems with the electronic part of the box.

S-Tronic Reliability

The reliability of the S-Tronic system will fully depend on the operating conditions and the driving manner of the owner. Thus, with large track runs, a frequent change of high-quality oil on the original and low loads, such an aggregate is fully capable of going out by the rules of mileage of 200 thousand km.

However, in the practice of such a regime it is possible to achieve not always. According to most professionals, this type of box is the least reliable among all automatic competitors, although every year the designers make a lot of changes that improve its endurance. After 5-7 years, according to the results of these upgrades, this type of S-Tronic is equal in terms of reliability indicators with the most endless aggregates of the type of variator and the torque converter.

S-Tronic Resource

The resource announced by the manufacturer of this system is 200,000 km. However, adhering to the regulatory replacement of oil in 60,000 km and combining aggressive ride, it is almost impossible to achieve such an indicator. Separate elements of S-Tronic as a result of faults can manifest on 100 thousand km of run, and overhaul most often overtakes such boxes of 150 thousand. To extend the life, the aggregate must often change the transmission oil and move as much as possible in traffic jams, thereby not allowing the overheating of the system.

S-Tronic Malfunctions

Typical malfunctions due to violation of the rules of operation or design features are as follows:

Cleaning wear from overheating, increased loads, disorders of the electronic algorithm. Such a problem occurs on this unit most often. At the same time, the S-Tronic clutch replacement is the fiscal operation on this type of checkpoint, on average, such an operation will cost the owner of about 60-70 thousand rubles.
The failure of the electronic block S-Tronic, shafts as a result of the distance to the action. Loosening of sensors, moisture entering, as well as mechanical damage to the electronic block S-Tronic can lead to failure of the entire unit. Such a problem in S-Tronic requires professional intervention and large pillows, as it is often the replacement is not only the block itself, but also many sensors.
Tschi hull and S-Tronic glands. Such a problem is quite rare, most often due to the use of poor-quality transmission or mechanical damage to the hull itself. However, with oil starvation of the S-Tronic system, the entire unit may fail and cannot be regenerate. The cost of such a gearbox assembly is about 400-600 thousand rubles.

Conclusion

S -tronic is a technologically perfect CAT for the aggregate of all positive and negative qualities, which, with proper operation, will give the owner a lot of positive emotions.

Volkswagen and Audi are rightly considered pioneers in the serial use of robotic gearbox with dual clutch.
Actively install preselective boxes for their cars, manufacturers began in 2003.
Since then, the Volkswagen models are equipped with a transmission called DSG, and the development of AUDI received the name S-Tronic.

Here it looks like now the classic DSG box 7

First of all, it will be fair to note that both companies are the divisions of the concern VAG.
Given this fact, it is almost useless to look for any serious constructive or technological differences in the aggregates.
Moreover, comparing the existing modifications of DSG, it can be noted that most of the versions of C-Tronic are their complete analog.

However, there is still exceptions!

We must not forget that many modern Audi models have a longitudinal location of the motor,
while all versions of DSG are equipped with transversely installed power units.

And this is an option for the RCPP S-Tronic for Audi (Standard)

And Option C-Tronic For Audi A7 Sportsback is also equipped with a wet clutch knot

Thus, under the hood at the all-wheel drive and part of the front-wheel drive models from AUDI, there are unique modifications of S-Tronic,
not having "twins" in the DSG lineup.
Recovered PPCs have the factory labeling DL382 and DL501, and are indicated by the following indices: 0B5, 0CK, 0CL, 0CJ.

If in your car felt signs of faults in the gearbox, sign up for free diagnostics.
In our service center you will receive reasonable prices and high quality repairs provided by a guarantee.
For a period of two years or a mileage of 60 thousand kilometers.
To record, you just need to send "Online Application" Or call the phone indicated in contacts.

As is known, in the line of the German manufacturer of Audi, the Audi Q5 SUV, the main components of which are borrowed from AUDI A4 '08, were added to the Audi QUTTRO AUDI QUATTRO models. The new sports SUV AUDI Q5 combines all the road car with the dynamics of sports sedan. The superiority of the high Audi technologies, allowed to provide the Q5 SUV, all the necessary nodes and units, for example, as: a practical chassis, a powerful engine, 7-speed automatic transmission (ACP) with a double friction clutch S Tronic and a dynamic AUDI dynamics system Drive Select, magnificent design, high-quality finishing materials, taste and comfort of the cabin. All this together is taken, create a sporting SUV excellent opportunities for traffic in the city and off-road, providing the necessary comfort for their owners during any ride. But the most important component between the engine and the car became precisely equipped with a S-Tronic box.

Today we will talk in detail about the 7-speed automatic transmissions (ACP) with a double-friction clutch S TRONIC in combination with Quattro drive, working paired with a gasoline-liter turbocharged engine Turbo FSI, with a capacity of 211 horsepower. The ACP has a TRONIC trade name and the service designation 0B5. The TRONIC ACP is a completely synchronized KP with electro-hydraulic control, provides automatic gear shift without breaking power flow, with very short switching times and continuous thrust, gives considerable fuel savings and pleasure when driving.

Why we decided to pay attention to this model of the gearbox, everything is very simple, it is almost perfect in terms of dynamics, sportiness and results.
The overall results of the clutch reaction in various modes have almost enormous indicators, and in Dynamic mode is achieved in just 79.893 miles.
S-Tronic gearbox has proven itself as the fastest and successful Audi car transmission. This gearbox is installed almost on all all-wheel drive models of the German brand, which requires high gear shift speed and instant response to changing driving style.

The TRONIC ABP has a range of gear ratios for gasoline engines 6, for diesel 8, while the seventh gear is increasing, and the maximum speed is achieved on the 6th gear. The automatic box provides up to 550 nm at 9000 rpm, the mass is about 142 kg with a two-headed flywheel and oil filled.

Now we draw your attention to the constructive feature of the gearbox. The TRONIC ABP consists of two main parts. The first part includes: a leading disk, two-volume flywheel, main transmission differentials, two multi-disc friction clutches with electro-hydraulic control, couplings are cooled with oil using an ATF inner pump, a MEChatronik block, a fitting for connecting an ATF radiator, oil sapuans. Viewing and learning everything in detail, we mark that the Mechatronik block includes a hydraulic system control unit, an electronic control unit, a part of temperature sensors and actuators. The second part is a mechanical part or seven stepped fully synchronized gearbox (seven stepped variator), which has an independent lubricant system, inter-sieve differential, oil collectors, gear lever, side shaft, drainage. Everything is formed in such a way that it creates a balance between the ACP agriculture, its cooling and the highest speed of the gear shift reaction.

The S-Tronic gearbox has proven itself as the fastest and successful transmission of Audi cars. This gearbox is installed almost on all all-wheel drive models of the German brand, which requires high gear shift speed and instant response to changing driving style.

For example, the Audi R8 sports car is equipped with a double-seized S-Tronic transmission, as well as all known "charged" models Audi RS.

Paying more attention to the Audi R8 sports car, equipped with a new S Tronic, one can noted the property of this box - it "jumps over" between the transmissions, which gives an incredible dynamics when pressed on the gas pedal. Audi cars with such a gearbox "shoot" from space with an amazing power.

Audi R8 with a 5.2 liter engine installed under the hood, accelerates from 0 to 100 km / h in just 3.5 seconds. But, despite its power, the car manages to save fuel. At the moment when the driver releases the gas pedal, the TRONIC box switches to the last 7th gear, which significantly saves fuel. According to the manufacturer, the average fuel consumption of a sports car dropped by 1 liter per 100 kilometers of the way.

1. Special oil collectors for directional lubrication of bearings and gears allow you to work at a very low level of oil. This reduces the breakdown losses (bubble), which improves (bubble), which improves efficiency.
2. Primary shaft on three supports;
3. New oil for KP;
4. Self-locking intersecting differential with an asymmetric dynamic distribution of torque 40/60;
5. Space for installing a bias with a displacement (when replaced for all clarity seals);
6. Cylindrical gear with a special-shaped teeth that admits an angular deviation of the shaft axis in two planes (spiral teeth);
7. Lateral shaft with a slope in two planes;
8. Switch to determine the position of the 1st, 2nd gear and transmission of the reverse;
9. Airtight two-row radially thrust ball bearing for a long service life and a small resistance to rotation;
10. The welded conical gear and the special shape of the teeth in connection with the side shaft located at an angle;
11. Main Transmission / Differential Before the clutch module;
12. The clutch module is a two-chassal flywheel and one-piece dry clutch as a design box of the gearbox;

The torque margin is about 350 nm, ideally suitable 2.0 l TFSI and 2.0 l TDI engines.

Next, in the materials we will describe in detail about temperature sensors, hydraulic pressure sensors, gear shift sensors, primary shaft speed sensors, about the cooling and gearbox protection system, about the correct operation of the ACP S Tronic and many other things.