What 4 Matik means. Four-wheel drive Mercedes-Benz. Principle of operation of the system

* The real color of the car and the equipment may differ from the image shown in the image.

A powerful and economical engine that is installed on Mercedes GLC 250 4Matic opens new features for SUV holders. The two-liter motor spends in a mixed cycle of only 6.5-7.1 l / 100 km, which for SUV class is an excellent indicator. The speaker is also at the height: the engine power is 211 hp, the maximum speed is 222 km / h, and the acceleration time is up to 100 km / h - 7.3 s.

GLC 250 4Matic is distinguished by thoughtful equipment: already in the basic version of the SUV there are numerous electronic systems that increase comfort from driving and safety. Permanent four-wheel drive 4MATIC guarantees optimal clutch, whatever road conditions. Perform a 9-speed automatic transmission 9G-Tronic driving.

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Technological systems (basic equipment)

AKP 9G-Tronic, AKP DIRECT ACP and PERSONAL DIRECT MOVEMES
Dynamic with five motion modes
Eco Start / Stop feature
Chassis Agility Control with selective depreciation system
Adaptive Brake with HOLD function, the function of facilitating starting from space on the rise, pre-increasing the braking force and the drying function of the brakes in crude weather
ATTENTION ASSIST Fatigue Fatigue Recognition System
Anntible System (ABS)
Pedestrian protection (active hood)
Bedroom cushion for driver + o horse airbags
Tire Air Pressure Control System
Electric parking brake with automatic shutdown when touching
Electronic Motion Stabilization System (ESP®) with the function of countering the side wind
Multimedia system with the ability to access the Internet with a multimedia display (17.8 cm) Audio 20 USB + D fRONTBASS system - 5 pieces.
Mercedes-Benz emergency call system

Specifications

dimensions

* The number of cars is limited. The special price is valid when surrendering in the Trade-in car "Mercedes-Benz" or another premium brand, registration of the CASCO and loan policy in Mercedes-Benz Bank Rus. Auxiliary equipment may be installed on cars.

The 4Matic drive system, which is officially registered trademark, was developed several years ago at Mercedes-Benz, and today it is installed on several models of passenger cars. Cars with four-wheel drive 4Matic are equipped exclusively shifting gear.

The 4Matic dual-drive system is designed to give a car sustainability on the road and controllability in any situations: during the start of movement, during the passage of turns, along the snow-covered, icing or wet road coating, as well as during execution.

The 4Matic system transmits the torque from the car to all the wheels at the same time, but distributes them in different proportions. For example:

for all passenger cars, with the exception of S-Class - 40% on the front and 60% on the rear wheels;
GL, R and ML class - 50/50;
S-Class - 45/55.

Four-wheel drive 4Matic has one very interesting feature: now the car has no systems of intercole differentials and inter-axis differential. Instead of these systems, a new ELECTRONIC TRACTION SYSTEM system (4ETS) is installed, which manages traction effort. It is this system that does not give a slippage of the vehicle with a slippery pavement.

As soon as the wheel starts trying to slip, the 4ETS system automatically increases the torque simultaneously on the other wheels, which with the road have a good clutch. Therefore, a car equipped with a 4Matic system, always with an expensive has a good clutch and a large stock of the thrust.

4matic device

The 4Matic system includes the following devices:

automatic transmission switch;
transfer case;
cardan transfer to the front axle;
on the rear axle;
and rear inter-wheeled differential;
main Transmission and Front Interworgled Differential;
halfts of the rear wheels.

4Matic full drive system diagram:
1 - automatic transmission; 2 - dispensing box; 3 - Cardan transmission of the drive of the front axle; 4 - Main Transmission and Front Interworing Differential; 5 - drive shafts with hinges of equal angular velocities; 6 - Cardan transmission of the rear axle drive.

The central structural element of the 4Matic system is a dispensing box, with which it is steadlessly distributed over the car axes of the car. Conducting a handout of:

drive shaft;
rear axle actuator shaft;
planetary gearbox;
cylindrical gears;
the front axle shaft. The role of an asymmetric inter-axis differential in the dispensing box performs the planetary gearbox.

4Matic dispensing system diagram:
1 - drive shaft; 2 - rear axle drive shaft; 3 - planetary gearbox; 4 - cylindrical gears; 5 - front axle drive shaft.

The ESP innovative system, which is fully integrated into 4matic, makes the system of the system even more efficient. Since the system gets complete information from a variety of sensors about how the speed rotates wheels, what is the angle of rotation of the controlled wheels, what is the angular velocity of the digging and transverse acceleration. This data is calculated by the built-in system microprocessor, and makes the motion trajectory optimal.

If the course was set by the driver, and the car dismissed from it, the 4Matic system interferes with the control and adjusts the magnitude of the torque or braking moment. The interaction of 4Matic and ESP systems is unique today. The car is always stable and moves along the optimal trajectory of movement.

Video:

Everything. Good luck on the roads!

The 4Matic full drive system is used in the design, both cars with increased permeability and passenger cars. In today's article we will talk about the history of the appearance of this system and about its varieties.

History

Most motorists know that all-wheel drive systems appeared relatively long ago, and at first were installed with the MCPP. However, the PP 4Matic system, the developer of which is Mercedes-Benz, supports cooperation only with automatic transmission.

4Matic 1 was first presented in early 1986. It was installed on the car Mercedes E-class W124, where it triggered automatically.

The principle of the system is as follows: the basis of its design is a mechanical differential blocker. Control is performed using two hydromeuft. The main advantage of the system is that when activating the ABS system, 4Matic is automatically disabled.

The year 1997 was marked by the debut of the full drive of the second generation, which was first applied to the Mercedes W210. Now the four-wheel drive has become permanent. This was achieved by installing free-type differentials, which are blocked by activating the traction system.

The debut of the third modification took place in 2002. The novelty, in contrast to the predecessors, has become more popular, and it began to install it in other models of the company. As for the actuator system, it, as in the previous embodiment, is constant. As for differentials, they are also free. The regulation of the system is carried out at the expense of the system of course stability controlling the traction, and the moment of inclusion / disconnection.

The fourth modification system was first demonstrated to the public in 2006. He was tested by Mercedes S550. Despite the fact that the system had the maximum similarity with the predecessor, it was regulated exclusively to the on-board computer.

At the moment, the fifth generation system is considered the most modern. The new system began to use even more models. For example, in 2013, 4Matic 5 was installed on CLA 45 AMG and GL550. It is worth noting that this system is completely robotic, and automatically distributes the axial load.

It is worth noting that the company's engineers have already begun work on the next version, and promise that now it will be possible to control the PP system using the buttons.

Features 4matic system

At the moment, the 3rd generation is most popular. The main reason for this lies in a relatively low cost and excellent quality system.

Set of PP 4Matic system includes:

Automatic transmission;
front and rear axle with cardan transfers;
transfer case;
front and rear differential;
halfts of the rear wheels;
multi-speed corner hinges.

If you analyze this kit, we can conclude that 4matic is a truly complex mechanism that, in connection with its peculiarities, cannot work with "mechanics". The main element is the transfer box, due to which the torque is distributed. Plus, with its help, the gearbox, drive shaft and cylindrical gear, is carried out.

So how does the 4Matic drive system arranged? Let's start with the fact that the drive shaft is connected to the gearbox, the rear axle of which receives rotational power from a large gear, or, as some of it is called, solar. The front axle on one side is connected to a smaller gear, and on the other hand, with a cardan transmission, also at the expense of the gear.

Principle of operation

Now we speak more about the system of PP Mercedes 4Matic. It should be immediately noted that proportionately, the axial load is distributed as follows: 40% by 60%, with the advantage of the back. No need to forget that the function of the asymmetric inter-axis differential takes on the planetary gearbox. On some models you can meet some other distribution indicators: 45% by 55%.

It is worth noting that in cars that are equipped with a system of PP and automatic transmission, there is no blocking of inter-axes and inter-wheeled differentials. Due to the car stability system, the traction gain system, the anti-lock system and the anti-slip system, the on-board computer automatically adjusts the distribution of the torque.

However, the developers immediately stated that cars equipped with a 4Matic full drive system consume more fuel than similar models with ordinary equipment. More precisely, the level of fuel consumption increases by 0.4 liters for every 100 kilometers of the path. At first glance, not so much, but if you look more large, it turns out a serious figure.

Differential lock is carried out by activating the ETS system. Here is the same principle of work, as in the electronic blocker. The required moment system automatically triggers, and the axle wheel is slowed down, and instead it is additionally loaded the wheel, which has a normal clutch with a road surface.

At the expense of these innovations, the car with the PP system can boast of good starting speed, a stable movement along poor-quality road coating and excellent handling.

Output

The 4Matic full drive system is one of the most popular. At the moment, the developers have already released as many as five versions that do not feel serious competition.

Initially, the system was developed for a limited number of models, but, over time, their number has grown.

The 3rd generation system uses the greatest demand. This is primarily due to the fact that it was at the beginning of the 2000s who began a sharp rise in the German concern Mercedes. In order to meet the needs of the market, the company has sharply increased productivity, and reduced the cost of cars.

According to the result, we can say that the system is not particularly difficult, nevertheless very good and perfectly shows itself on SUVs, for example, such as or.

Video

In this article we will tell you in detail about the 4Matic drive system from the German company Mercedes-Benz.

Modern vehicles have a large powerful threshold, so for high-quality clutch with the coating of the road of one wheel pair, it is often insufficient enough. It often happens to slip. In order to increase the acceleration of the car when starting, and to reduce the probability of slipping, the system of correct distribution of torque between all wheels is used. The presence of a all-wheel drive transmission allows you to stabilize movement and increase car handling. This is favorable reflected on driving safety in ice and when overcoming steep turns.

Features Early Full Drive Systems

It is known that for the maximum productivity of the full drive in the transmission design, you must include several additional nodes. But the car from this becomes only harder, the level of vibration increases and the noise level increases. Since the all-wheel drive system has a complex design, therefore, the price of the vehicle is rising to it equipped. In this regard, the costs of maintenance and repair of the car are increasing. Also an additional mass of the all-wheel drive car is the cause of increased fuel consumption.

Since all this constitutes certain difficulties and costs until the end of the 80s, the all-wheel drive transmission system was used only on vehicles with increased permeability. The use of it on the passenger cars was considered inappropriate and unjustified. However, the situation has changed dramatically after the 4Matic system appears.

Construction features of the system

Transmission 4Matic is an automatic all-wheel drive system, which was designed by the designers of Mercedes-Benz. It is worth noting that the system is branded by the concern and is established exclusively with automatic transmission to most models.

The system works on the following principle: under normal conditions of movement, the car leads the rear axle. As soon as the wheel slip begins (for example, when driving into ice), the front actuator immediately occurs, and so the car becomes all-wheel drive. The distribution of effort is carried out between all the wheels, however, its value is different for each of them.

The control system for connecting the full drive, reads the testimony from the following sensors:

Speed;

Determination of the rotary angle;

Brake system sensor.

The basis of the design of the 4Matic system is a modernized handout, which allows you to instantly redistribute all the torque effort between the vehicle axes. Also, the system of the system is complemented by the following nodes:

Automatic transmission;

The main transmission system of effort;

Cardan transmission rear and front drive;

Drive levers equipped with shurts;

Differential front axle.

A little story in conclusion

The 4Matic system was developed and improved by Mercedes specialists for five generations. For the first time, 4Matic system first generation W124 was installed in the second half of the 80s (1986) of the last century, it was included in the work automatically and had a mechanical unit blocking of differentials. Full-wheel drive was controlled by two hydraulic couplings. The drive disconnected after ABS triggers.

As the main plus, it is possible to allocate fuel saving in monolon mode. The difficulty of construction and low efficiency in the full drive mode can be attributed to cons.

Second generation 4Matic systems as Dopa Mercedes began to be installed in 1997 on the W210 E-class model. By default, they also set out on ml-ki in the W163 body and on R-Class since 2005. The second generation of 4Matics was already constant 4WD with three open differentials and simulation of their blocking using the thrust control system (4 Wheel Electronic Traction System). Through the planetary transmission, 35% of the traction is distributed to the front axle, 65% on the rear. In the credit of the second generation of the system, it is possible to be added - simplicity of the design and, unlike the first generation, good rates of passability. As a minus - increased fuel consumption, because In constant work, all 4 wheels.

In 2002 appeared third generation 4Matic on vehicles with, e and s- classes in w203, W211 and W220 bodies, respectively. In essence, it was all the second generation, but brought to mind with the addition of adding electronic assistants affecting the imitation of locks. We are talking about ESP stabilization systems, ASR anti-slip, control on DSR descent, 4ET and ABS traction force control. Depending on the car model, the distribution of thrust between the axes differed:

1. Cars, except for S-class, and for light crossovers - 40%-inserted axis / 60%-ardent axis;

2. 50% by 50% for ML, GL and R-CLASS;

3. 45% by 50% for S- and V-classes;

4. For Mercedes AMG - 33% by 67%.

What is the constructive feature of the third generation of the full drive of the 4Matic third-generation? The main structural element of the system is a transfer box, which steplessly distributes the torque along the axes of the car. In addition, the dispensing box is the interaction between the dual planetary gearbox, cylindrical gears and drive shafts. The drive shaft is connected to the drive of the planetary gearbox. The rear axle drive shaft rotates from the solar gear of a larger diameter. The front axle drive shaft is connected to the solar gear of small diameter, on the other hand, using a cylindrical gear is connected to the front axle cardan transmission.

Fourth generation Appeared in 2006 on cars S550 and W204. This generation is the further development of the last two. A cylindrical differential, "applied" unmanaged two-disc friction, which distributes the supplied torque between the axes in the proportion of 45% the front axle and 55% rear axle. When overclocked on a homogeneous slippery coating, friction blocks the inter-sieve differential, adding a car stability. In the event that the difference between the torque between the front and rear axles exceeds 50nm, the friction is sinking. Managing management work provides 4 sets using working brakes. Electronic ESP, ASR and 4ETS helpers in the new system are calibrated in such a way as possible as possible as possible, which makes it possible to maximize the engine power.

Fifth generation 4Matic systems appeared in 2013 on CLA 45 AMG and Mercedes-Benz GL 500 cars and is a 4WD on-Demand (not permanent, and the connected P / P) on the front-wheel drive architecture with a cross-mounted front engine. The front and rear differentials are open, the inter-axis differential is absent. The set of electronic systems is the same, the imitation of the locks is also provided by 4ETS. PTU (Power Take-Off Unit) is engaged in the PTU (POWER TAKE-OFF Unit), embedded in a robotic gearbox 7G-DCT with double grip. The PTU turned out to be very compact, and it possesses a common with a box of lubrication system, due to which it was saved to 25% of the weight. Under normal conditions, the torque is distributed between the front and rear axles in proportions from 100/0 to 50/50. So, when accelerating a car with a full load at a speed of 50 km / h, the ratio changes to 60/40, 50/50 becomes rapid turnover, with a loss of clutch with an expensive front wheel - 10/90, in case of sharp braking with ABS - 100 / 0. The redistribution of the moment is achieved at the expense of variable degree of compression of the inter-axis clutch.

How 4Matic system works:

Comparative Test of the 4Matic, XDrive and Quttro:

The 4th Matic full drive system was fully developed by the Mercedes-Benz car concern specialists.

4 Matic What does it mean?

The car is equipped with a transmission of 4 Matic, which means, if the rear leading wheels have been drunk, then the torque is redistributed to the wheels of the front axle. This operation of the 4Matic drive system is due to the change in the central electronic system of the vehicle through the hydraulic drive of the degree of interaction of the clutch disks. After that, there is a gradual redistribution of torque on the axis having the best contact of the wheels with the road surface. As practice has shown, the 4Matic full drive system has significant advantages compared to other rear-wheel drive systems. However, it has a rather complicated design and high cost.

So what is me?

In business in our time, many have difficulty. This is of course 99% tied on an emotional background, but still. Ups, drops, competition, sanctions, currency courses, etc. The list can be continued to infinity.

And where is 4 Matic?

As you have already done to notice my site is called, and I want everything to be in my life in my life, as in the system of full drive of this car! After all, business is, much more than, just "market seeds on the market", you must control a lot of workflows. Something you get better, something worse, something does not work at all. At the initial stages of development, this is normal, many even live all their lives. But when you start scaled, you simply do not be able to keep track of everything, and you need to overcome this bar! Then you can like a tank to go through any terrain, knowing that you have a strong team and everything works as a "full drive system", you do not need to look back, because you eat very fast forward.