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Comfortable conditions inside the car are ensured by a special system that regulates humidity and air temperature. All drivers know it as climate control, which very accurately reflects its functions and purpose. Most modern cars are equipped with such systems different levels difficulties. Information on the availability of climate control can be found in the technical documentation of the car.

The first device that provided a comfortable microclimate in the car interior was a stove. Part of the thermal energy it generated was used for heating. Now this device is considered primitive and incapable of creating comfortable conditions, especially in hot weather. In this article we will talk about the system that replaced it. In other words, you will learn what climate control is in a car.

Definition

The complex designs of modern systems help them solve wide range tasks. Let's try to understand the purpose of climate control.

The technical documentation says that the system provides comfortable conditions for passengers and the driver. The most favorable temperature range for humans is considered to be 22-25 °C with a humidity of 65-80%. Climate control monitors these parameters and maintains their consistency.

The temperature is regulated using an air conditioner and a stove. But with humidity the situation is more complicated, since water vapor condenses on the car windows. This causes inconvenience and obstructs the driver's visibility. Good climate control dehumidifies the air by forcing it through the air conditioner's evaporator. Due to this, water settles in the form of dew on the walls of the heat exchanger. And lowering the humidity prevents the windows from fogging up.

Nowadays, most vehicles (from cars to trucks) are equipped with this device. It is also installed on self-propelled mechanisms and special equipment.

Now you know what climate control is in a car. But to complete the picture, it is necessary to consider several more important points.

How car climate control works

Using sensors, this device monitors the air temperature outside and inside the car. The flow from outside is forced into the cabin by a fan, dividing into 2 parts: one passes through the air conditioner evaporator, and the second through the stove. After the heat exchangers, the mixed air enters the cabin through a network of deflectors and box-shaped air ducts.

The parameters are adjusted by changing the position of the curtains (central and additional). They are called temperature control dampers. The dampers are rotated by electric servo drives, which reduce or increase the cross-section of the channels. Everything described above is controlled through the climate control control unit.

The regulator on the panel of this device allows you to set the desired temperature, for example 24 °C. This data will go to the processor, which, in accordance with the programmed algorithm and information received from the sensors, will control the operation of the system. Since internal and external parameters are constantly changing, they are monitored in real time.

Components

The development and installation of climate control on a car is carried out during its assembly at the manufacturer’s plant. To perform the functions assigned to the device, its design contains a number of components:

air conditioner;
control Panel;
CPU;
damper position temperature sensor;
heater;
blower fan;
system of deflectors and air ducts;
block of guide flaps.

Each element of the system has its own function.

The fan creates pressure. In recirculation mode, air is taken in by the system both from inside and outside.

The damper block is mounted in the same housing with the air conditioner evaporator and the heater radiator. This design makes it possible to bring the airspace parameters in accordance with the established values.

A system of deflectors and air ducts distributes flows throughout the car interior in accordance with a specific program. Control is carried out using a processor that receives data from the panel from switches, regulators and sensors.

The operation of climate control in a car directly depends on the state of its control program and components.

Additional modes

In addition to the basic functions for creating a comfortable microclimate, the device can have a number of additional modes:

Blowing the lower part of the cabin and the windshield with warm air.
Manual control.
Windshield defogger to prevent condensation. To do this, the air is dehumidified and the fan operates at full power.
Supplying air to various parts of the body: legs, arms, face separately or in certain combinations.
Recycling.

The latter mode is needed for accelerated cooling or warming up the interior, as well as for driving in traffic jams. In the latter situation, the air outside is heavily polluted, and the car's climate control system simply cuts off its supply to the cabin. For these purposes, the device contains a sensor, the working element of which consists of tin oxide. Its resistance varies depending on the concentration level of harmful substances.

Application specifics

Manufacturers develop climate control for a line of cars or a specific model. They differ in design, degree of complexity and control algorithm.

Inexpensive installations have a low degree of automation and rather roughly regulate air exchange. Very often, when the engine is cold, an unheated flow is supplied to the cabin.

In advanced installations, such things do not happen, since they control many different parameters. In addition to other functions, modern systems can not only monitor air quality, but also use filters if necessary. The latter use carbon and paper cartridges that trap suspended dust particles and gaseous substances harmful to humans.

IN modern systems air conditioning, air temperature adjustment is carried out in the range from 16 °C to 30 °C. To avoid hypothermia, do not install very low values. For a comfortable stay of the driver in the cabin, the temperature sensor should show a difference (between the cabin and the street) of only 5-7 °C. To speed up the operation of the device, you can open the windows slightly. Then the conditioned air will displace cold or heat from the interior much faster.

Dual zone climate control

Each person has an individual perception of temperature. That is, the same value may be normal for one passenger, but uncomfortable for another. In this case, automakers have come up with dual-zone climate control, when the driver can set the optimal temperature for himself and his passengers.

Let's list the advantages of dual-zone climate control:

The driver and each passenger sets the most comfortable microclimate for themselves.
The system executes the programmed algorithm very accurately.
Due to exposure to external and internal factors In such cars it is almost impossible for windows to fog up.

Differences from air conditioning

Readers who don’t know much about climate control in a car may ask: “Why complicate the system so much? After all, it’s quite possible to limit yourself to air conditioning in the summer and a stove in the winter.”

This has happened in the past, but there is one important point. Both systems are capable of providing an optimal microclimate in the cabin only if the external and internal conditions in the car will remain unchanged. For a moving object, which is a car, this is simply unrealistic. Air pressure and temperature change along with the direction and speed of movement.

The main difference between air conditioning and climate control is the presence of a control system that monitors all parameters and regulates them without outside participation. It turns out that the air conditioner is one of the components of the installation, which performs the function of reducing humidity and cooling.

Climate control in winter

At low temperatures The car's climate control equipment mostly works to heat the outside air. In such conditions, air humidity is low, so a stove will be quite sufficient. And turning off the air conditioner will not affect the efficiency of the climate control.

Everything is much more difficult when the temperature is at zero, with rain and snow or high humidity. In this case, the windows and windshield may fog up. But the climate control control unit can easily solve this problem by switching the system to automatic mode. And to remove excess moisture from the outside air, the system uses the air conditioner.

Conclusion

In this article we found out what climate control is in a car. Let us briefly summarize everything described above.

System installation is required to create comfortable conditions inside the car with their automatic regulation.
A modern car with climate control will make the most enjoyable and long journey, and a short trip.

So, if you decide to buy a car, then choose the option with this necessary device.

Previously for freshness and pleasant atmosphere In the car showroom in the summer there was an air conditioner, in the winter there was a stove. But technological progress cannot be stopped, and today climate control is responsible for comfort in the car interior both in winter and in summer.

What is climate control?

It is impossible to pinpoint exactly when a car with climate control first appeared. However, there is information about when the first sample of a car air conditioner was created. This event dates back to 1927. Of course, the first units were not as perfect as the current ones, but time moves forward, technologies change in better side, the level of professionalism of engineers and designers is constantly increasing exponentially, and now the car air conditioner has been transformed into a climate control system.

You can also find the abbreviation HVAC, which stands for climate control. It is deciphered from English as follows: Heating - heat supply, Ventilation - ventilation, Air Conditioning - air conditioning. Therefore, from this it can be seen that climate control is a system that consists of an air conditioner, heating and air filtration elements, as well as the necessary sensors. The climate control is operated by an electronic control unit (ECU).

Basic distinctive feature climate control from its predecessor - air conditioning, is temperature regime. The fact is that the air conditioner is designed only to cool the air in the cabin when the climate control system maintains the set temperature. With all this, the smart system takes into account not only the temperature outside the car, but also the heating of the interior by the sun's rays, which ensures the most comfortable stay for the driver and passengers inside the car.

If the weather is cold outside, the climate control can operate in heating - air conditioning mode, and if the air coming from the street is polluted, the recirculation mode is automatically turned on. The driver has a choice of temperature conditions ranging from 16 to 30 degrees Celsius. The driver's choice is set by a regulator located on the panel. After which the signal enters the control unit, putting the system into action. The level of heating of the cabin air is regulated by a central damper, due to which hot and cold are mixed air flow. If a certain need arises, the air conditioner can turn on, helping to rid the car interior of excess moisture and heat.

Types of climate control

Today, thanks to the use of smart electronics, it is possible to zone the climate in the car interior. Based on this, the climate control system is divided into the following types:

single-zone climate control;
dual-zone climate control;
three-zone climate control;
four-zone climate control.

In a single-zone system, only the driver can select the temperature. Dual-zone climate control allows you to set different temperatures in the driver's seat and front passenger seat. The third and fourth types of climate control allow all passengers to remotely adjust the most comfortable temperature for each of them.

Components of climate control The climate control system combines the climate control system and a very important part - its electronic control system.

In turn, the climate control system combines the following elements:

air conditioning system;
heating and ventilation system;
heater radiator;
supply air fan;
air conditioner consisting of an evaporator, compressor, receiver and condenser.

The climate control is controlled by a corresponding electronic control system. The main elements of this system are input sensors, control units and actuators. Input sensors measure relevant physical parameters and convert them into specific electrical signals. Input sensors include: air temperature sensors outside the vehicle, output temperature sensors, evaporator temperature sensor, photodiodes monitoring the level of solar radiation and damper potentiometers. Output sensors and their number depend on the model and climate control system and design. The outlet temperature sensor can also be equipped with an additional foot sensor.

The output temperature sensors in a dual-zone climate control system are located on the left and right; in a three-zone climate control system, they are also located at the rear. The position of the air dampers, whether set or current at a certain moment, is fixed by damper potentiometers. Thanks to the pressure and evaporator temperature sensors, the operation of the entire air conditioning system is ensured. The electronic control unit receives signals from sensors, then they are considered by embedded programs, forming a control effect on the necessary control devices. Let's talk about them next.

The group of actuators includes damper drives and electric fan motors. Their function is to create a given temperature regime and maintain it. The dampers begin to operate by acting on them with an electrical or mechanical drive.

Climate control systems have different types of dampers:

supply air damper;
central flap;
temperature control damper. It is used in a system with several control zones
recirculation damper;
flap for defrosting glass.

Operational features of the climate control device

To set the desired air temperature inside the car, you just need to set required indicator on display. The computer program will carry out all further manipulations independently. Most efficient work climate system there will be conditions under which the internal recirculation of the vehicle's ventilation system is turned on. Thanks to this, the system is in standby mode, rather than constantly wasting energy on heating or cooling the air. However, although these operations can be adjusted automatically, you should not rely entirely on technology. Closing the deflector and choosing the required direction for the air flow is something each driver must choose independently. If you take into account all the design features and have a certain amount of knowledge on operation, you can extend the life of your air conditioning system by long years. Remember the fact that you need to use air recirculation wisely.

Idle cooling mode will cause all the windows of your car to fog up. Moisture released that condenses during respiratory process passengers will settle on the evaporator. After a certain period of time, it may appear bad smell inside the car. In hot weather, before turning on the climate control, you should ventilate the car by opening all the doors and windows of the car. This will equalize the temperature of the car with environment. Next, you need to set the device to operate in recirculation mode at the maximum possible power. At this moment, all doors, windows and hatches must be fully closed.

At first, the driver must wait outside. To ensure that the climate control works correctly, avoid exposure to outside air when driving. IN otherwise this will lead to changes in sensor readings. Each element can work both interacting with others and independently. When the climate control system is operating, the vehicle's fuel consumption increases significantly. Be sure to take this into account when operating the climate control.

Climate control control mechanism

As we mentioned earlier, the electronic control unit is responsible for the operation of the climate control system. This is a kind of brain center of the entire climate system. The decisions that the control unit makes are based on the readings of all available sensors and sensors. The correct functioning of climate control also depends on the operation of the evaporator-heater unit. It allows you to achieve the desired temperature value in the shortest possible time. The rate of heating or cooling is directly affected by the air recirculation mode. The required temperature is maintained due to the operation of the automatic control unit. Neither the driver nor the passengers take any part in this process. Using the fan and damper positions, the electronic unit optimizes the direction, strength of the air flow and its temperature.

Several air flow directions are possible:

glass area;
area at the feet;
"glass/legs";
passenger's face area;
"legs/face".

Caring for the climate control system

Like all automotive devices, the formation and maintenance of a microclimate in the car interior requires systematic care. Timely refueling of the air conditioner should be carried out along with flushing its radiator. The frequency of this operation should be at least once every six months. Maximum efficient functioning of the climate control system is achieved only if the necessary maintenance rules are followed.

Advantages and disadvantages of car climate control

The main advantages of using climate control are the following:

comfortable travel conditions in the cabin vehicle;
determination of air temperature outside the vehicle;
full automation of the system, which does not distract the driver from the road;
The human body cannot become hypothermic as a result of the climate control system.

This system, like all other automotive fillings, has a number of disadvantages:

high cost of the option;
high fuel consumption;
If a problem occurs in any one of the adjacent compartments, the entire system fails.

The climate control system is installed by default in most modern cars. Often these are representatives of imported cars. Climate control is the undisputed leader in ensuring comfortable movement of the driver and passengers. The hour is not far when it will completely replace the car air conditioning system, which is still relevant today.

Where to install car climate control?

Installing a climate control system is considered a rather labor-intensive and engineering-complicated operation. Therefore, the price of installing car climate control is quite high. It depends on the machine model, configuration and manufacturer of the selected system. However, at dealers the cost of installing car climate control is often lower than at third-party companies.

In addition, when installing a climate control system, changes are made to the design of many important components; the stove, air conditioner and other units are disassembled and reassembled. To ensure that the installation of climate control does not disrupt the operation of these systems, it must be done at an official service center. You can find out how much it costs to install car climate control from dealers.

How is climate control installed?

The process of installing climate control depends on the design of a particular model, and the stages of installing the system may differ:
And so, first you need to remove (carefully so as not to damage the coating) the center console, remove the glove compartment, remove the sound insulation of the cabin where the air recirculation hole will be.
Then you need to drain the antifreeze, remove the heater, and cut off the battery mount.
Mark and cut out the recirculation hole, drill holes for attaching the evaporator and screw it on, make a hole in the engine shield (you need to cut it very carefully, since the fuel lines run nearby).
Then you need to replace the engine compartment wiring of the cooling fan with special wiring for the climate control sensors. Install the ceiling sensor and the sensor with the fan and connect them.
Pull the wiring along the main to the left (there is no need to install the stove yet, it is more convenient to install the wiring without it). Connect the connectors, run the battery wire, reinstall the heater unit and evaporator, connect the wiring.
After this, you can install the climate control ECU, start the car and check the electrical equipment, make sure the dampers and other devices are working.
Next, you should install the radiator, freon lines and a special bracket for the compressor. Secure the compressor (it is better to change the seals immediately), screw on the hoses and install the fans.
When everything is assembled, you need to check the lines, connect the compressor to the system, install a new dryer and throttle, make sure the connections are tight and charge the air conditioning system with freon.
When climate control is installed, the entire system must be tested. If the temperature in the cabin corresponds to the set one, and all devices work correctly and respond to changes made by the driver, then the system is installed correctly.

If you need to install climate control, contact V-STUDIO car service. Qualified specialists of our car service have great experience work, and can guarantee you a responsible attitude towards your car and professional approach to the task at hand. It should also be noted that modern equipment, high-quality materials and spare parts are used for work. By contacting the V-STUDIO car service, our specialists will repair your car of any degree of complexity, efficiently, in the shortest possible time.

A comfortable car interior is probably one of the main factors by which car enthusiasts choose a car. But even the most luxurious interior, the most comfortable seats and excellent ergonomics cannot bring pleasure if it is hot inside or, conversely, too cold. For this reason, engineers developed and equipped cars with air conditioners and systems that would cool the air in the summer and heat it in the winter. Nowadays, car enthusiasts are increasingly faced with climate control. What is the difference?

Story

But in the beginning there were only air conditioners. The first car equipped with air conditioning was developed in 1940. Naturally, it was still very far from the solutions that are used today. Modern air conditioners began to appear only after 13 years. However, at that time it was considered a real technical breakthrough. And even more - the installation of an air conditioner in the Chrysler Imperial in 1953 bore fruit - an entire industry of automobile air conditioners was launched. Thanks to this, more functional climate systems subsequently appeared.

Today you can find cars in various configurations - somewhere there is air conditioning, and somewhere there is a climate system. Let's try to figure out how climate control differs from air conditioning, and also learn about the design of climate control equipment.

Definition of concepts: air conditioning and climate control

If we try to briefly talk about the difference between an air conditioner and a climate system, then the first thing we need to say is that these are completely different terms, which many people often confuse and do not know whether there are differences between climate control and air conditioning in a car. And this confusion is not surprising - both solutions have similarities and solve similar problems. These systems are designed to maintain a comfortable temperature in the cabin. But it must be said that air conditioners appeared much earlier. Therefore, let's start with them.

Car air conditioner

Almost every one of us has a split system hanging on the wall at home. However, a car air conditioner is significantly different from household equipment. The device is powered not by electricity, but by rotation of the crankshaft via a belt drive. Air conditioners are designed only to cool the air in the cabin. IN summer period To adjust the intensity of operation of this device, it is necessary to change the fan speed. The faster the fan rotates, the sooner the air will become comfortable. If it is necessary to heat the air, then the stove starts up, and the warm air is dispersed throughout the cabin using the same fan. It should also be noted that when the air conditioner operates, it first takes in air, then dries it, and only then will the flow be heated or cooled.

Air conditioners in modern cars are controlled using mechanical or digital control systems. It all depends on the make and model of the specific car.

Climate control

Now let's look at the difference between climate control and air conditioning. The first complex is a kind of system that automatically maintains a certain and constant temperature. The temperature regime is set using various electronic systems. Thanks to electronics and sensors, the efficiency of the car air conditioner, heater, and ventilation system is regulated.

Climate control device

So we have climate control. How is it different from an air conditioner? At least because the climate system consists of several blocks. This is a control element that monitors humidity and temperature using sensors. There are even some models of climate control equipment that take other parameters into account. This is solar radiation, temperature outside, but often this is not necessary. Apart from the control unit, there are no other major differences. But precisely thanks to electronic unit the ride becomes comfortable. Many people love climate control. How is it different from an air conditioner? Yes, because there is no need to be distracted from control by adjusting stoves and air conditioners.

Also, in addition to the fact that the climate system automatically regulates temperature and humidity using electronics, it can also independently move the air duct dampers and select directions so that the driver or passengers do not catch a cold. Air conditioners are not equipped with this function. Here are the differences between air conditioning and climate control. What's better? Definitely the second option. You won't be able to catch a cold or get sick with it.

The need for an electronic control unit

The control unit receives information that comes from sensors inside and outside the car. Next, it analyzes the desired environment and, based on this data, calculates what needs to be done to satisfy the driver. Thanks to full analysis, climate control is much better than air conditioning. At the same time, it is possible to reduce fuel consumption - the amount of energy consumed depends on how much it is necessary to cool or heat. If you set up the air conditioner and heater system correctly, and the intensity of this equipment is minimal, then consumption can be reduced quite significantly.

How to operate air conditioning and climate control

The first one is controlled only manually. On the center console or dashboard There are special controls with a “snowflake”, which is also indicated by the “A/C” icon. You only have to control it using these buttons.

But what to do if your car has climate control? How is it different from an air conditioner? Firstly, complex controls. However, it cannot be said that the management process is very complex. On modern cars with climate control there is a button - Auto. This button starts the climate system. After the control unit starts up, the system will begin to analyze information from the sensors and make a decision whether to cool or heat the air in the cabin. Naturally, we cannot say that the system works exactly like this on all cars. But in general outline everything fits together.

Types of climate control systems

Depending on the technical characteristics system, it can create different temperatures in several areas of the car. The sensors already familiar to us help her with this. There are one-, two-, three- and four-zone solutions.

For example, we have dual-zone climate control. How is it different from an air conditioner? It can create two separate microclimates at the same time different parts salon So, usually one is located near the driver, and the other is near the passenger.

Operation of the climate system in winter

Depending on the model and make of the car, the type of equipment, and even on the climate system itself, the operating algorithm may be different. Most often, these differences can only be noticed in winter - for example, while warming up the car in the morning, the control unit will independently move the deflectors first to the windows, then the air stream will smoothly descend to the feet. At the end, the heated air will flow towards the driver's face. In this state, driving is much more comfortable.

Knowing the operating principle and basic mechanisms, you must also remember that in each machine these algorithms can be individual. The thing is that in some systems, warming up may be performed differently. In addition, some complexes can be customized, while others do not allow you to make any settings. And even more - separate systems automatically turn off the air conditioning if the windows fog up from the inside.

How to avoid getting sick under car air conditioning

Climate control and air conditioning in the cabin are not a guarantee that the cabin will be as comfortable as possible. It is necessary to be able to use these systems correctly so that the temperature is comfortable, but nothing more. If it is too low and it is very hot outside, there is a huge chance of catching a cold. To prevent this from happening, it is necessary to abandon low temperature conditions. To avoid getting sick, the temperature should be set 5 degrees lower than outside. IN long trips it can be reduced, but this is done gradually every 2 hours. Then the temperature will be as comfortable as possible, and the risk of a cold will be minimized. In winter, the climate control is adjusted so that the cabin does not get hot. Going outside poses a serious risk of getting sick. Often climate systems are set to 22-26 degrees in winter.

Which is better: climate control or air conditioning for Definitely climate, because the driver will not be constantly adjusting the temperature and distracted from the road.

About the disadvantages

Obviously, the climate system is more convenient to use. With a one-time setup, it immediately provides the maximum level of comfort for many months. However, is everything really that good? Despite all the advantages, automation has disadvantages that can seriously affect the choice, and a person will choose a conventional air conditioner. The first minus is the price. It is much higher if the car is equipped with climate control. But when people want more comfort for themselves, the manufacturer can make money on it. The second drawback is low reliability and low maintainability. Climate control equipment consists of many electronic devices. Let's take, for example, an electronic unit that a conventional air conditioner does not have - it sometimes fails, and the efficiency of the entire complex depends on its behavior.

Verdict

Climate control or air conditioning - which is better? If we consider from the point of view of convenience, definitely the climate. But if your priority is reliability and a limited budget, it is better to give preference to an air conditioner.

Driving a car can be compared to stressful situation, but the driver, to maintain safety traffic, must be completely focused on management. At the same time, the microclimate in the cabin is an important factor for ensuring wellness, which means it helps reduce tension.

Therefore, for comfortable and safe trips, many car manufacturers equip their cars with an option such as climate control.

What is climate control?

Climate control is a modern high-tech system consisting of many interconnected components responsible for ensuring a favorable environment inside the car.

In general terms, it allows you to install, and subsequently maintain, required temperature air, which will be the most comfortable for the driver and his passengers.

Principle of operation

The operation of climate control is quite simple. It is directly connected to the air conditioning and heating system in the cabin. To take temperature readings, various sensors are used, which transmit the received data to the electronic control unit.

It, in turn, depending on the algorithm (or program) stored in its memory, then transmits commands to various executive devices. For example, when the temperature in the cabin rises, the control unit will send a signal to the temperature damper, which will add a little more cold air to mix with hot air, resulting in the temperature normalizing to the specified limits.

All this adjustment and readings from sensors occurs automatically; the driver (or passenger) just needs to set the desired temperature on the control panel, and the system will perform the rest of the actions itself.

Components

The climate control system itself consists of the following parts:

Difference from air conditioner

Some car enthusiasts confuse climate control with an air conditioning system. It should be noted that a car can be equipped with air conditioning without climate control, but a car that is equipped with a climate control system will definitely contain air conditioning.

In a car, it works exactly the same as a regular indoor unit, on the principle of a refrigerator.

The main functions of an air conditioner in a car:

cooling the air entering the cabin;
air recirculation;
dehumidification of air, removal of excess moisture from it.

The main difference between air conditioning and climate control systems is the ability to maintain a set temperature. In cold weather, the climate control works in conjunction with the air conditioning, drying the air in the cabin to prevent the windows from fogging up.

Advantages and disadvantages

The main advantage of climate control over air conditioning is that it creates a favorable microclimate inside the car. If the air conditioner simply cools the air, and it is necessary to select the desired temperature in the car manually, adjusting the opening angles of the dampers and the air flow, then with a climate control system the car driver can fully concentrate on the process of driving the vehicle.

The disadvantages of climate control include:

unreliability;
complexity;
high cost of maintenance.
not really precise work temperature sensors, as a result of which the temperature in the car may differ from the values set on the control panel.

Sensors are usually located in hidden places, and foreign objects in the cabin make it difficult to read data, which leads to such an error.

Multi-zone climate control

To improve comfort, car manufacturers often install multi-zone climate control. This word implies that the interior of the car will be divided into conditional zones, in each of which a certain temperature will be maintained.

The following options exist:

2-zone, the most common, however, the least effective option. In this case, two separate zones are at the front of the car (driver and passenger);
3-zone, with this option the temperature is set not only for the two front passengers, but also for a separate area of the rear seat;
4-zone, in in this case The temperature is set for each passenger in the hotel, both in the front and rear seats.

Multi-zone climate control is implemented using a controlled system of dampers and air ducts for each part of the car. They contain sensors that take readings and transmit them to the control unit, which, by adjusting the opening angles of the dampers, achieves the required temperature values for each zone.

Climate control

Climate control is controlled on the corresponding panel. Required values are set using regulators. They are transmitted to the control unit, which sets optimal values damper opening angles and efficient air flow.

The damper regulates the temperature as a whole (by mixing cold and hot air), so in multi-zone climate control it is impossible to set very different values temperature indicators. Periodically, the control unit polls the sensors and slightly adjusts the operation of the actuators.

Operation of the climate control is quite simple. It is not recommended to use it without a properly functioning cooling system, since there is always moisture in the air, and without drying the air it will be deposited on the evaporator, which will lead to the so-called “swampy” smell in the car interior.

In addition, moisture is a breeding ground for all kinds of bacteria and microbes, which can greatly affect the health of passengers and the driver himself. It is recommended to periodically allow only the air conditioner to operate (even in winter period), in order to remove moisture from the evaporator.

You should also not open the windows or sunroof when driving with climate control. In this case, the sensor readings will be confused and the system will not be able to function normally.

To summarize, we can say that climate control is fully responsible for the microclimate inside the car and takes care of the health of the driver and his passengers. Automatic adjustment to maintain comfortable temperature conditions inside the car allows the driver not to be distracted from the road and allows the driver to fully concentrate on the driving process. All this makes driving a car safe and comfortable.

What is climate control? Climate control - a technologically advanced heating/ventilation system for the interior. The air conditioner is used as the basis for creating the “climate”. Installation usually has two modes:

auto. When the climate control unit independently selects the optimal temperature/direction of air masses, focusing on the readings of the corresponding sensors;
manual. The air temperature is set independently using controls (fan speed, air direction, “recirculation” mode).

Principle of operation

Climate control in a car operates through an air conditioner/heater radiator combination. With the help of the interaction of these nodes, it is possible to maintain a given air temperature and deliver it to the cabin.

Ventilation/heating systems, as well as an air conditioning system, are involved in the “climate” process. All three components are combined into a single control unit.

Car interior air conditioning diagram

Moreover, each system consists of several nodes. The same air conditioner includes a compressor, evaporator, receiver, and condenser.

The heater radiator and the supply air fan form the backbone of the heating and ventilation system.

Climate control in a car can be:

single zone (standard);
dual-zone (for driver/front passenger);
three-zone (optional: for the rear row of seats);
four-zone (optional: dividing the rear row climate system into two zones);

Multi-zone climate control systems allow you to change the temperature/direction of air flow for each person sitting in the cabin individually. In addition, the “climate” can be intelligent: independently change the air temperature and fan rotation speed. Climate control in a luxury car also allows you to change the degree of illumination of the interior by means of sun blinds.

Control

Maintaining the required interior microclimate is possible using the following components:

Sensors

Photodiode. Detects the ambient light level.
Entrance sensor (external). Determines the outside air temperature and compares it with the cabin temperature. Located on the front of the car, behind the bumper.
Exit sensors. The cabin air temperature is identified.
Evaporator temperature sensors.
Sensor that detects pressure (air conditioning).
Drive device sensors.
Sun sensor. Mounted on the windshield, based on influence determination sun rays raises/lowers the temperature in the cabin.
Sensor for determining the position of the sun relative to the car. You can find this function in a premium car. Comes complete with multi-zone installations. The essence of the device is to determine the temperature difference in the cabin and restore its balance.

Each sensor works as follows: analog signals are converted to digital and sent to the climate control unit.

Driver (actuator) elements of the air conditioning system:

mechanical/electric drives;
fan motor.

The elements are activated through a single control unit, which supplies the corresponding signals.

Air mass deflectors

Dampers control air flow and allow you to use climate control more efficiently. Kinds:

Which is preferable?

Air conditioning or climate control – which is better? In essence, “climate” is an air conditioner, only more functional. The answer to the question suggests itself, but not everything is so simple.

Advantages of "climate":

possibility of setting a fixed air temperature. The air conditioner can only reduce/increase the fan speed, in other words, simply freeze. While his opponent allows both cooling the flow of air masses and heating;
presence of automatic mode. The air conditioner is deprived of this function, which is why you have to constantly be distracted by adjusting it;
the ability to save fuel consumption by turning off equipment when it reaches desired temperature. The air conditioner works until you turn it off manually;
“climate” is better tolerated human body due to a softer temperature transition. This is possible thanks to sensors in the cabin that send impulses to the control unit, which, in turn, sets a gentle temperature regime. Therefore, there is less risk of catching a cold. The air conditioner issues cold air sharply, creating a resonance between the outside temperature and the cabin temperature - which is fraught.

The common disadvantage of both systems is a reduction in engine power (about seven horses), which affects the dynamic qualities of the car.

Climate control and its close relative are serviced in the same way - systems are checked and freon is replaced twice a year.

Setting the "climate"

Those who for some reason do not have climate control in their car (poor equipment) can install it themselves (it is better to seek help from a specialized service center/official dealer). A general algorithm of actions is provided: