Which automatic transmission is better. Which automatic transmission is better

31.07.2019

First of all, if there is automatic transmission, in normal mode, the driver does not need to independently select and engage a gear, work with the pedal, etc. In practice, this greatly simplifies the process of driving a car, increases comfort and safety.

As for the automatic boxes themselves, today it is customary to call “automatic” both, and (AMT) and CVTs. In other words, there are several options for automatic transmissions, and for a number of reasons, classic automatic transmissions and "robots" are the most common among them.

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What is the difference between "robot" and "machine"

To understand how one type of gearbox differs from another, it is necessary to consider their features and principle of operation. We note right away that both the “automatic” (automatic transmission) and the “robot” (RKPP, AMT) provide a similar final result: The transmission automatically selects and shifts gears while driving based on vehicle speed, engine load, accelerator position, etc.

However, a hydromechanical automatic transmission and a robotic gearbox manual transmission are fundamentally different in design and principle of operation. Let's look at their features and differences in more detail.

Let's start with the "classic" hydromechanical "automatic" with. Unlike the robot, which appeared relatively recently, an ordinary automatic transmission appeared a long time ago and became the first type of automatic transmission that began to be massively installed on cars.

In a nutshell, automatic transmission is step box gears, where the torque converter (GDT) plays the role of a clutch. At the same time, ATF is transmitted to the gas turbine engine through the transmission fluid.

The valve plate () and the ECU are responsible for controlling the operation of the automatic transmission. The plate has special channels through which the pressure is supplied transmission fluid. The channels are blocked by valves (). At the command of the ECU, the valve opens or closes, respectively, opening or blocking the channel.

When the valve is open, ATF fluid acts on the gearbox, which as a result allows you to engage and disengage gears in automatic mode.

Advantages and disadvantages of automatic transmission. Speaking of pros and cons hydromechanical automatic transmission, in the list of main advantages, the reliability of the unit and the time-tested design, as well as the ability to withstand a sufficiently large torque, should be highlighted.

Among the minuses, we note that although the automatic transmission works quite smoothly, the moments automatic switching gears are still noticeable to the driver. Also, gear shifting can be “long”, especially on older “automatic machines”. Still to be highlighted high flow fuel for cars with this type of transmission.

As for repairs, in the event of failure of both the box itself and the torque converter, one should prepare for serious costs. At the same time, the maintainability of automatic transmissions is quite acceptable, a large number of Service stations provide repair services.

The robotic gearbox was originally designed to achieve maximum fuel economy and comfort while simplifying and reducing the cost of the unit itself. In the conditions of the world fuel crisis and tough environmental standards this solution was intended to solve a number of problems inherent in classic hydromechanical automatic transmissions.

Simply put, the “robot” box is where the clutch foot drive is replaced with an electric drive, and the gear shift is carried out actuating mechanism. The choice of gear and its inclusion, as well as the engagement and disengagement of the clutch, is controlled by an electronic unit.

The control of these boxes resembles the well-known single-disk robot in terms of the principle of operation. There are all the same servos, actuators and controller. The main difference is that while, for example, the second gear is engaged, the ECU simultaneously engages the third one, keeping the clutch “squeezed out”. As soon as the shift time comes, in a fraction of a second, the second gear is turned off and the third gear, already half engaged in advance, is switched on.

While driving, the gearbox control unit evaluates the actions of the driver, takes into account the speed of the car, the position of the gas pedal, the load on the engine and a number of other parameters in order to select the most suitable gear in relation to specific conditions.

Pros and cons of a "robot" with double clutch. In terms of advantages, the up and down shifts are imperceptible to the driver, the highest shift speed makes it possible to achieve an almost complete absence of power flow interruption, the car accelerates smoothly and quickly.

It also retains the maximum fuel efficiency inherent in all robotic gearboxes. At the same time, preselective boxes are the most economical compared to all other types (single-disk robot, automatic transmission, variator, mechanics).

As for the minuses, first of all, such boxes are quite complex, cars with a preselective gearbox are very expensive. The resource of these types of transmissions is longer than that of analogues with a single clutch, however, in practice it is reduced compared to classic torque converter automatic transmissions.

Speaking of maintainability, DSG repair and analogues from other manufacturers can be quite expensive. In practice, the cost of such work and spare parts often exceeds the high-quality restoration of an automatic transmission with a torque converter as part of a comprehensive overhaul or overhaul of the gearbox.

Summing up

As you can see, each of the considered types of automatic transmissions has its pros and cons. Also, if an automatic gearbox and a robot are considered, there are differences both in the device of these gearboxes and in the principles of their operation.

Also, before buying a car (especially a used one), it is important to know what type of gearbox is installed, automatic or robot, how to distinguish these types of boxes. The point is that under general concept Automatic transmission today can hide both the first and second options.

As a rule, it is recommended to study separately the information on specific model car, for which generation and in what years of production this or that transmission was installed. It should be remembered that visually, for example, DSG can not be distinguished from a conventional automatic transmission with Tiptronic. In other words, you need to know how to distinguish a robot from a machine in a car.

Finally, we note that it is quite difficult to unequivocally answer the question, a robot and an automatic machine, which is better. If we are talking about new cars with a gun, then it is better to select a gearbox taking into account personal preferences and financial capabilities.

As a rule, a machine with a single disc robot is cheaper and more economical in terms of consumption, however, the comfort when shifting gears compared to classic automatic transmission may be reduced. For this reason, it is optimal to test drive models with various types Checkpoint.

In the case of preselective robotic gearboxes, it is the classic automatic that may seem more “thoughtful”, comfort when shifting gears suffers a little, acceleration dynamics are worse, etc.

However, the reliability of a torque converter automatic transmission in practice turns out to be higher, such a box is often easier and cheaper to repair. These features should be considered separately, especially if you plan to buy a used car with an automatic transmission.

Robotic checkpoint

Such a checkpoint or “robot box” is not an automatic machine.

Actually, this mechanical transmission, where the clutch disengagement functions and take place automatically. The name of such a system suggests that the driver of the car and road conditions form only input data. And all work inside the checkpoint is carried out using electronic block according to certain algorithms. This is the main difference between the box: the “robot” differs from the “machine” in the first place.

"Robot" is the comfort of automatic transmission, high reliability, as well as fuel economy - after all, it is mechanics. At the same time, a robotic box is often much cheaper than classic automatic solutions. Today, many popular and even unknown car brands equip their cars with just such installations. There are already manufacturers who have installed such boxes for the entire line: from budget models to premium class.

How does a robotic gearbox

What is the difference between "robot" and "machine"? At least with your device. "Robots" can also differ from each other. However, these nodes have something in common. This is a manual transmission, where the shifting and clutch are controlled by electronics. In such solutions, a friction clutch system is used.

It can be either single-disk or multi-disk. Modern gearboxes usually use a double clutch. This avoids losses in power and dynamics. At the heart of "robots" is the usual mechanics. Already used in production turnkey solutions. For example, in robotic systems SpeedShift uses the 7G-Tronic automatic transmission base from Mercedes. Here, instead of a torque converter, clutch discs were installed.

The SMG model from BMW is a six-speed manual transmission with electrohydraulic clutch. So, on the technical side, the difference between a “robot” and an “automatic” is the absence of a torque converter and other electronics. That's all the differences.

Robotic gearbox drive

Gearbox robots are either hydraulic or electric. If the model has the last drive, then servomotors and mechanisms are used as it. If it is hydraulic, then work is carried out using hydraulic cylinders, which are controlled by solenoid valves. Specialists and marketers call this system an electro-hydraulic drive. Some of these boxes are Opel models and Ford. A hydromechanical unit can also be used in conjunction with electric motor. The motor in this case serves to move the main clutch cylinder.

The electric drive is slower. average speed switching is about 0.3-0.5 s. And the energy consumption is much less. Hydro-actuated systems provide constant pressure, which means that energy costs will be higher. However, hydraulics are much faster. Similar solutions are installed on sports cars due to high speed.

Drive and application

Electric "robots" are used more often on budget models cars.

Among the popular boxes are: Allshift - Mitsubishi, Dualogic - Fiat, 2-Tronic - Peugeot. Hydraulics are installed on more expensive models.

Control

Operates a special robo-checkpoint electronic system. It includes various sensors, ECU, as well as executive systems. Sensors monitor key parameters. It also monitors pressure and temperature. Sensors give information to the control unit. Based on the received signals, the block generates control pulses to the executive part according to certain algorithms. The control unit is in constant interaction with many nodes in the car.

IN hydraulic systems in addition to all this, the control unit also includes hydraulic element which controls the operation of hydraulics. This is another difference between a “robot” and an “automatic”.

Dual Clutch Robot

The main disadvantage of such solutions is for a long time triggering. This leads to jerks and dips in dynamics.

All this in the complex reduces the comfort of control. But that was before. Now this problem has been solved with two clutches, which ensured fast shifting without loss of power. Another difference between a “robot” and an “automatic” is the following: with one gear engaged, the driver can select another and, if necessary, turn it on without any interruptions. Such systems are called switchboxes. none automatic decision so far can't offer it.

Another advantage of dual clutch systems is the high speed of operation. It here depends only on the speed of switching clutches. This is used in the popular DSG from Volkswagen. What is the difference between "robot" and "machine"? Worth mentioning about compact dimensions first and light weight. This is very true for small subcompact car models. In addition to compactness, note the high power consumption. High speed work with a constant torque output makes it possible to obtain good acceleration dynamics and fuel economy.

How does a "robot" work?

As for operation, two modes are available here - automatic and semi-automatic. In the first case, the ECU implements the embedded algorithms using sensors. Each robotic box contains manual mode. It is similar to the operation of Tiptronic on most "machines". This mode allows you to sequentially move from the lowest gear to the highest using the selector.

Box "robot" and "machine": the difference

If you look at both systems in terms of operation, there are few differences. In the case of the "automatic" there is no clutch control. The robot controls it, but completely automatically. “Robot” is mechanics, automatic is a hydromechanical system. This is the difference between it and the "machine".

It is important to take into account overclocking with a delay. Fluid in automatic transmission cannot immediately cope with the impact of the driven shaft. They are not very tightly coupled - this is a kind of "fuse". The transformer will rotate freely even when something is jammed. the torque converter is small, so part of the power is lost. If the engine is off, the “automatic” cannot work.

Advantages and disadvantages

What is the difference between "robot" and "machine"? At least the price. Among the advantages can be identified a reliable design.

It is based on mechanics, which have already been sufficiently studied and tested. In terms of its reliability, the manual transmission is significantly superior to both the variator and the “automatic”. It is also believed that the use of manual transmission can contribute to lower fuel consumption. So, some owners claim savings of up to 30%. consumes less oil. So, 2-3 liters are enough here, and the variator will eat 7. The number of gears is equal to the number on a manual transmission.

The mechanics are much easier and cheaper to repair, although motorists write on the forums that maintenance is quite expensive. But most of the breakdowns can be done with your own hands, having the necessary experience. The resource of clutch discs has also been increased. In urban conditions, the driver is often stuck in traffic jams, and on the slopes, the manual control function will be very useful. Among the shortcomings is the lack of the possibility of flashing the unit.

The speed of work is lower than on the machine. In the city, you need to switch to semi-automatic mode. On climbs, the clutch disengages.

Visual differences

If motorists do not know how to distinguish "automatic" from "robot", then when choosing a car, you should look at the selector. If there is a P sign, then it is an automaton. If there are only N and R, then it is a "robot".

Which transmission to choose?

If we compare the pros and cons, then no transmission has any advantages. Otherwise, manufacturers would already be releasing the most The best decision. The choice is more down to personal preference. It is difficult to say which is better: "automatic" or "robot". It should be noted that automatic transmission is smoothness, manual transmission is dynamics. So, we found out how the "robot" differs from the "machine".

Of course, you need to compare the robotic gearbox and the CVT, and both are now developing quite strongly (more and more of them can be replaced on ordinary cars). So which one is better, more reliable, and what to choose in the end to drive for a long time? Let's figure it out, as usual there will be a text version + video. Well, the vote at the end of this material, I'm really interested in your opinion, well, let's go ...

The variator has been on our market for a long time, for example, such brands as NISSAN, its "daughter" INFINITY, MITSUBISHI have been using such transmissions for a long time. But ROBOTS (RKPP), 5-7 years ago, were quite rare and, to put it mildly, buggy transmissions (remember at least robots from TOYOTA, they worked VERY badly).

BUT what is happening now? Now manual transmissions are installed on quite a lot of cars, even in budget class, remember at least our LADA VESTA! Moreover, AVTOVAZ announced that it plans to install not only robots, but also CVTs on VESTA.

In general, there is something to compare, so I still plan to think about which transmission is preferable to choose. Let's begin …

VARIABLE SPEED DRIVE (CVT)

In fact, it was developed a very long time ago (they talked about the variator -), it allows you to give excellent acceleration dynamics without unnecessary devices and parts, combining fuel economy. However, he is afraid. After all, despite all its simplicity in structure, not every car service will undertake to repair it. Although now the situation is changing. This type is constantly improving, modernizing. There are more and more specialists in this field. Of course, it’s too early for him to compete with a machine gun (automatic transmission trusts more manufacturers cars), however, many manufacturers are switching to CVTs precisely because of the smoothness of the ride, fuel economy and dynamic characteristics. Even electric car manufacturers prefer this particular transmission (models where one electric motor is installed in front), so this transmission is the future. Even if it changes beyond recognition.

Technical part

The variator, if you drop it into the structure, is quite simple. There are two shafts, certain cones (or pulleys) are put on them, as it is better for anyone to hear. One shaft approaches the engine (now through a torque converter), the other (through various drives) directly to the wheels. Between them there is a link, usually a belt (for example, on NISSAN cars) or a chain (on AUDI).

The cones that are on the shafts can move and move apart, due to this their diameter changes. For example - at the start, one shaft has a smaller diameter, the second maximum. When the speed is average, the diameters are the same, when the maximum shafts change in size (one becomes small, the second becomes large). just link them. BUT this link is the maximum load.

Briefly about breakdowns

As I wrote above, the variator simple transmission, but quite demanding on its maintenance (especially lubrication). And it is not so easy to repair it, despite all the simplicity, not all of them are taken dealer stations(I'm already silent about third-party service stations), there are simply no normal masters and knowledge.

About oil . Here it is special (on NISSAN NS-2, NS-3). Now many can say that this is not oil at all. Calm down, oil, just the most technologically advanced, even better than ATF fluid on automatic transmission. It is expensive, so many save and do not change it. BUT you shouldn't do that.

Replacement should be every 60-80,000 km. The variator also has a valve body, solenoids, which can become clogged over time. The pressure in the system drops and from this the cones will move poorly - move apart. Also, the oil protects and lubricates the system, but as you know, it does not last forever, and in order to resume its original characteristics, it must be replaced.
If you do not change the lubricant and preferably the filter (which is in the sump), then the cones will not effectively squeeze the belt, it will begin to slip, scuffs will appear on the surface. All this will sooner or later lead to jerks and pushes, normal operation will not

Belt breakage. Tears can also provoke the destruction of a belt or chain if it shatters inside. That can ruin the whole box, there will be nothing corny to restore.
In general, it is worth driving the variator correctly. I have a separate video about this and. Look, it will be useful.

A few words about the resource

You know, if you drive carefully and do not tear this transmission, it can take a long time, 200 - 250,000 km is not the limit. However, there are also design miscalculations when even 30,000 km does not go (usually due to a firmware error).

If you change the oil correctly and on time, it can take a long time. However, on runs of 150,000 km (maybe a little more), it is worth looking at the condition of the chain or belt, if necessary, it is better to replace

The whole problem of the variator is that it is a difficult-to-predict transmission, someone has 209,000 km and no problems, and someone has 30,000 km and only problems.

Pros and cons of the variator

PROS	MINUSES
Switching. Almost intangible (because they don't exist)	Service. Expensive consumables. For example, the oil in it is 8 liters and it costs more than ATF, about twice.
Dynamics. Excellent, no gear loss	Repair. Not all companies are taken, there are simply no sensible masters and diagnostics
Resource. More than the opponent	Torque. Withstands limited torque powerful motors and heavy cars, you can not put. Trite will not withstand the belt or chain inside
Control. The same light and understandable as on automatic transmission	Towing is not possible. It is fraught with a belt and cones.
Temperature. Practically not terrible, that is, it does not freeze in winter	Skidding (for a long time) is impossible. Again, the belt and cones will suffer.
Traffic jams. Runs great, no overheating	Overheat. You can not overheat, suffers a lot various nodes inside, starting from the valve body with solenoids, ending with a belt and cones

I think this table will be useful to you. Now let's move on to the opponent.

ROBOT (RKPP - AMT)

The latest work of mankind. They appeared not so long ago, at the end of the 20th century. In essence, this is a conventional mechanical transmission, which has a control unit on top and on the side. These units control traction and shift gears. When electrical engineering was not developed, they had mechanical servos that switched gears according to a given mechanical algorithm. It should be noted that hydraulics were often connected (that is, there was oil inside the blocks)

Now completely different, electrical-mechanical. The control units are controlled by special computers and mechanical servos (no oil inside), they decide how and when to change the speed. The computer can be "flashed" (change the firmware), so you can change the behavior robotic box gears. You can make it more dynamic, or you can make it calmer (it will be spent less fuel). Now these transmissions are evolving very much, hybrid cars have a number of robotic gearboxes, and therefore are promising. However, they have not yet been brought to mind, that is, in simple words with all the pluses, these transmissions are still “buggy” (slurred and slow gear changes, bad dynamics). Of course, they are being finalized, but so far this type of transmission is far from perfect.

Technical part

Again, I have robots (it is big, but I advise you to read it). I won't go into detail here.

The thing is that technically robotic boxes differ radically from each other:

Available with one clutch disc . A conventional manual transmission has two “actuators” that pull the clutch and change gears for you. It works slowly, the shifts are noticeable, the accelerating dynamics leave much to be desired. However, it is quite simple.

With two clutch discs. Here, as it were, two mechanical gearboxes are already combined, and therefore two disks. It works very quickly, there are practically no minuses, with the exception of reliability and resource (more on that later).

What can break and the resource of the ROBOT (AMT)?

Is it better and more reliable than the opponent? If you take both options, and with one disk and with two. In fact, there must be reliable gearboxes (especially the first option). After all, it's practically automated mechanics.

HOWEVER! As we know clutch disc + basket + clutch release they go on mechanics for about 100 - 150,000 km, then a replacement. Actually the same thing happens here.

ACTUATORS . Or control systems. There are two of them on a single-disk robot, for example, on our LADA VESTA. They go (according to unverified information), about 150,000 km.

ON a two-disk robot, the actuator is often one (for example, on a VOLKSWAGEN, their DSG boxes, this is "mechatronics"). It also doesn't last long. Now about 100 - 120,000 km. Previously, it could fail much earlier.

Eventually. More than 150,000 km (and even less for two-disk robots) is unlikely to pass. Clutch replacement + need to look or change actuators

The resource, for example, for the same variator will be longer (though subject to an oil change, once every 60,000 km).

Pros and cons of manual transmission

In general, they need to be compiled separately for the single-disk version and the two-disk version. So let's do it.

ONE DISC

PROS	MINUSES
Cheap. Both during production and during installation. The car costs about 40,000 cheaper than with a CVT (if we take LADA VESTA)	STUPIT. Switching, well, very tangible.
Fuel consumption. Less than the opponent.	Freezes. Especially old ROBOTS, with one disk, which have hydraulic actuators (shifting and gear selection)
Roll forward Can be rolled in neutral	Dynamics. Bad, accelerates sluggishly and with jerks.
Towing - IT IS POSSIBLE, in fact it is ordinary mechanics	Resource. About 120,000 km. Next, change the clutch, look at the actuators.
Skid - POSSIBLE.	No creep mode. When you turn on "D" -DRIVE or "A" - AUTOMATIC, it can roll back (this is not for all cars with a robot, but it happens)
Traffic jams. Not terrible. Again, in the structure of the usual mechanics	Control. For a person who moved from automatic transmission or variator. The lever and modes may not be clear (also there is no “P”-PARKING mode)

TWO DISC

POSITIVE POINTS	NEGATIVE
Fast switching. Virtually imperceptible.	Resource. Approximately 100,000 km
Dynamics. Very worthy	Repair and price. Difficult and expensive. Not every service will be taken
Temperature. Doesn't freeze in winter	Towing is not possible. Clutch discs suffer
There is a roll.	Skidding (for a long time) is impossible. For the same reason
Fuel economy. The best among automatic transmissions	Traffic jams. Need to travel to mechanical mode so that there is practically no shifting (for example, in 1st or 2nd gear). Otherwise, there is increased wear on the discs.
Easy control. Lever, positions, creep mode. Everything copies automatic transmission or CVT. So there are no transfer problems.

AS A RESULT . If we consider a variator or a robot. THAT, personally, I am not inclined to either one or the other, yet for me a conventional automatic transmission is better and more reliable. BUT, if you have just such a choice, and no more. Then personally, I would look at the variator (it works smoothly, good acceleration, a great resource at proper maintenance and operation).

Of the ROBOTS, the two-disk is certainly good! BUT repairs every 100,000 km can simply ruin you. Single-disk simple and its repair is much more affordable (once every 120,000 km), but it works extremely disgustingly (switching - jerking - overclocking, everything is very deplorable).

Now we are watching the video version.

This concludes my article. I think it was helpful for you. Sincerely yours AUTOBLOGGER

(11 votes, average: 4,91 out of 5)

It is worth noting that each of these types of checkpoints has its pros and cons. It is not surprising that when choosing a car, many potential owners are interested in which gearbox is on a particular model. Next, we will try to understand this issue and talk about what is better, a robot or automatic transmission gears.

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Robot or automatic transmission: which is better

Let's start with the fact that the robotic gearbox began to appear en masse on various cars relatively recently. At the same time, the hydromechanical automatic machine is a time-tested solution.

The automatic transmission is based on the valve plate () and the box itself, which is a planetary gearbox with a set of clutches and gears. This transmission can be installed all-wheel drive cars, cars with rear or front wheel drive. Transmission of this type able to work softly and smoothly, copes well with large volumes, is reliable and durable under the condition competent operation and timely quality service.

As a result, the owner receives comfort, smoothness, and the process of driving a car is greatly simplified. As for maintenance, this gearbox does not have the usual by analogy with or manual transmission, there is no need to periodically change this unit.

If we talk about the disadvantages of automatic transmission, first of all, it is worth highlighting increased consumption fuel and reduced efficiency, the high cost of maintaining and repairing a box or gas turbine engine, as well as changing such a fluid every 40-60 thousand km. run.

Also, initially, many cars of the same class are more expensive than analogues with a robotic gearbox. If speak about secondary market, on average, the difference can be 15-25%, which also often plays a role in the choice.

A robotic gearbox (robot box) can be represented by two options: the so-called or preselective box (for example,).

Although the robotic transmission copes with its task in the same way as an automatic transmission, that is, the gears are switched without the participation of the driver, such a box is fundamentally different from classic slot machines by design and principle of operation.

Let's start with simple single-clutch robots. In a nutshell, a CPR robot is mechanical box gears where the clutch is switched on and off automatically instead of the driver. The selection and switching on / off of gears is also automatically implemented. Servo mechanisms that operate under the control are responsible for performing these functions.

In fact, we get ordinary mechanics with automatic control operation of the checkpoint. It is important to understand that gear shifting in this box occurs according to the same principle as in a manual transmission. This means that when driving, the driver may feel jolts at the moment of switching, the robot delays gear shifting, etc., that is, comfort suffers in comparison with automatic transmission.

We also add that the clutch on such boxes fails quite quickly (often faster than on a manual transmission). Even as the clutch wears out, this box needs to be “trained”, since the automation, unlike the driver who physically controls the clutch with a separate pedal on the manual transmission, is not able to “adjust” on its own and take into account the changed setting point.

The owners also note the short service life of the manual transmission servomechanisms. These devices are quite expensive and have low maintainability. However, even taking into account all the disadvantages, single-disk robots are the cheapest type of “automatic machines”. Compared with automatic transmissions, it is worth highlighting their high fuel efficiency, good acceleration dynamics and the relative ease of maintenance and repair of the box (with the exception of servo mechanisms).

Now let's move on to preselective robots. These boxes, in their design and principle of operation, are similar to conventional manual transmissions and AMTs, however, they have not one clutch, but two at once. As a result, while the car is in one gear, the next one is also almost completely engaged. This scheme allows you to switch very quickly, the driver simply does not notice the moments of switching, the comfort is significantly increased.

This type of gearbox can rightly be considered the most economical, since the fastest possible gear changes make it possible to achieve an almost constant and inseparable transmission of traction from to the drive wheels. As for the disadvantages of preselective gearboxes with two clutches compared to automatic transmissions, these are a smaller resource, problems with servo mechanisms, high cost and complexity of repairs, the need to change clutch packs as they wear out.

As you can see, it will not work to immediately give an unambiguous answer to the question, a robot or an automatic transmission, which is better to choose and why. The fact is that, having considered all the strong and weak sides robots and hydromechanical gearboxes, choose among them the best machine It's hard enough.

First of all, it is recommended to independently conduct a test drive of models similar in characteristics with different types vending machines to immediately receive general idea about how the types of transmissions in question behave when driving.
On the one hand, if we compare a single-disk robot and a classic automatic transmission, the first option will be the most affordable and economical, and ease of repair is also noted.
As for the automatic transmission, this box is a comfortable and often quite reliable solution, but such a unit is more expensive to maintain and repair.
If we talk about robots with two clutches, they are no longer inferior to automatic transmissions in terms of comfort, while they win in terms of acceleration dynamics and fuel efficiency, and they are also cheaper to maintain.

It would seem that it is preselective gearboxes of the DSG type and other similar analogues that are in the lead in all respects, but do not forget about reliability. In less.

Now let's go directly to the choice and immediately start with new cars. If the cost of the car is the main determining factor, that is, it is needed, then it is quite possible to look towards single-disk robots.

If a car of average or high class, then a preselective gearbox with two clutches will be the best solution. The only thing, both in the first and in the second case, you can count on uptime robotic transmission to the mark of 100-150 thousand km.

In the case when it is planned to drive a lot by car or the car is purchased based on long term operation, then it is better to immediately pay attention to models with a reliable classic hydromechanical automatic transmission.

In a situation where you plan to buy a used car, you need to remember that the resource of robots is usually less than automatic transmission. Also, the repair of a preselective robotic box may require no less investment than a classic machine.

This means that automatic transmission models in the secondary market are usually more preferable than a robot. The reason is quite obvious, since it is more likely that such a box still has an acceptable residual life and will not require expensive repairs in the near future.