Works start. Starting system Stop by car

10.05.2021

Continuous tightening of environmental requirements for cars with internal combustion engines forces automakers to implement various devices on their products. One such nodes is the start-stop system, which control the operation of the power unit during downtime in traffic jams and traffic lights. Thanks to her, the re-start of the motor is performed without the driver's participation.

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Purpose of the invention START-STOP system

The studies of vehicle movement modes have shown that up to a third of the time of operation, the motor is on idling turnover. This is due to the movement in dense urban traffic with frequent downtime on traffic lights. To reduce harmful emissions, it was proposed to introduce automatic joining and launching the power unit.

Toyota began to apply forced engine stop on a number of models in the middle of the 70s. But the mass appearance of the start-stop belongs to the period of time after 2005.

The system allows you to:

reduce fuel consumption;
reduce the number of emissions into the atmosphere;
reduce the noise of the car during stops.

Principle of operation of the start-stop system

The start-stop system works on the principle of the forced end of the motor operation after stopping the car and repeated automatic start. The cessation of the vehicle movement is recorded by a speed sensor transmitting a signal to the control unit. At the same time, information is received about the rotational speed of the crankshaft. On machines with a manual box, you need to put the lever in the neutral position, and release the clutch pedal. Cars with automatic transmission activate the system by signal from the retained brake pedal.

Based on these parameters, a motor stop occurs. The work of the climate installation or audio system continues from the battery. At the same time, the instrument combinations include an indicator that inform the driver about the operation of the system.

To execute a start cycle required:

on cars with mechanical transmission - click on the clutch pedal;
on the car with an automatic box - let go of the brake pedal.

On car batteries with start-stop system, a special sensor is installed that determines the charge level and the ability to re-start the motor. When the voltage drops on the battery terminals, the system is automatically turned off.

Overview of the principles of operation of the Start / Stop function on the seventh generation VW Passat is demonstrated in the video from the Dmitry Force channel.

System design

The system uses a large number of sensors and control units. The listing and scheme relate to the Volkswagen concern cars, as they are the most common machines with the start-stop system. Products of other vehicle manufacturers have minor constructive differences.

Concept of components of the start-stop system

The system includes the following components:

Designation in scheme	Name
BUT	Accumulator battery
FROM	Engine generator
C1.	Voltage level control in the on-board network
B.	Starter
F.	Logging Signal Signal Switch
F36	End switch on clutch pedals
F416.	Start Stop Management Control Button
G62.	Liquid temperature sensor in the cooling system
G79.	Throttle control pedal position sensor
G701	Contactless sensor of the neutral position of the gearbox lever (on the mechanics), installed on the top of the crankcase
J104.	Anti-lock brake controller
J255	Microclimate or air conditioner system controller
J285	Combination of devices
J367.	Control of battery charging level
J393.	Comfort system controller
J500.	Electric steering amplifier along with controller
J519.	Side network control unit
J532.	Voltage stabilization system (required for correct operation of electronics)
J533	Diagnostic canal
J623.	Power unit management unit
J791.	Parking assistant

In addition, the system uses:

1 - steering amplifier;
2 - speed sensor;
3 - various sensors on the engine;
4 - the driver's seat belt sensor;
5 - climatic installation;
6 - Terminal 50R;
7 - Terminal 30;
8 - onboard multimedia system.

To ensure an increased number of engine launches, batteries with fiberglass filler (EFB) are used. The electrolyte in such devices is located inside the pores of fiberglass tissue laid between the plates of the battery. Batteries do not require maintenance and provide increased current strength at startup.

EFB Battery Design Scheme

Another distinction of the machines with the start-stop system is the generator and voltage control connected via a digital data bus. A similar connection allows you to control the parameters of the nodes and use this data when the system is running. The starter has increased strength and wear resistance. The windings are adapted to multiple repeated restarts through small intervals.

The electronics includes a special voltage stabilizer with an output power of 180-300 W. Inside the electrical energy drive is installed, which is transmitted to the on-board network through the electronic rectifier. The device smoothes voltage ripples at the starter times. Due to this, when working start-stop does not turn off the multimedia system, a combination of instruments and external lighting lamps.

On a number of cars (for example, Honda or Mercedes-Benz) there is a start-stop system, built on the basis of a reversing generator. The device is equipped with a reinforced drive belt and a special design tensioner. The switchable tension device allows the electrical machine to operate in the generator or starter mode. The plus design is silent operation and speed of operation (2 times faster than with the usual starter).

Reversing Generator System

The Japanese company Mazda offers the original system built on the principle of injection and the ignition of the fuel mixture in the cylinders. The motor stop is performed on the signal from the sensors, while the pistons stop in a certain position. After the signal is served, the position of the pistons occurs. According to the data obtained, the control unit carries out fuel injection into cylinders and ignition in a given sequence. The additional pulse of the crankshaft gives the starter connected for a short time.

Start-stop system from Mazda

Conditions for activation of the system

After turning on the ignition, the on-board network is performed in order to ensure the conditions of activation of the system:

the car is fixed;
the engine is idling;
the coherent cooling system is up to a certain temperature (15-25ºС, depends on the car manufacturer);
the brake system is properly (on a number of cars, pressure is measured in a vacuum brake amplifier);
the battery of the car is enough charged and the fundamental;
the microclimate system is correctly configured (the difference between the outer and the internal temperature is not more than a certain value, usually the threshold is 5-6ºС);
on a diesel engine is checked (during the start-stop procedure is turned off);
the driver is fastened by a seat belt;
the external body panels (doors, hood) are closed;
the clutch pedal is squeezed and the box lever is in neutral (for mechanical transmission);
the brake pedal is completely released (for automatic transmissions).

Failure to comply with at least one of the following conditions leads to shutdown of the start-stop system. Repeated initialization is possible only after the ignition system is passed.

Advantages and disadvantages of the start-stop system

According to the reviews of the owners, the following advantages from the use of the system can be distinguished:

reduction of fuel consumption and, as a result, emissions of harmful substances into the atmosphere;
using an improved battery and a powerful starter simplifies the engine launch at low air temperature.

The shortcomings are much more noted:

The system provides good savings parameters only when moving from traffic lights to the traffic light. When moving in protracted traffic jams, when the car drives several meters and stops, start-stop is less effective. Additionally, the level of battery charge drops from frequent starter operations, which does not have time to change. As a result, the system automatically turns off. The tests have shown that the efficiency of the start-stop in the specified situations is 2 times.
Increased burden on the battery, which leads to its rapid wear. The cost of the EFB-battery is 50-60% higher than that of the usual.
Installing a reinforced starter capable of performing frequent starts. The device has a high cost.

System names from different manufacturers

Almost all car concerns are used in the title System phrase "Start Stop":

version from BMW has the designation of AUTO START STOP, and from Mercedes-Benz - Eco Start / Stop;
mazda refers to the device as i-Stop or I-Eloop;
south Korean KIA uses the term Intelligent Stop and GO System;
for Porsche cars, Auto Start-Stop-Funktion is applied.

Turning off start-stop system

Despite the advantages that the system gives, sometimes it is required to disable it:

Car manufacturers have provided a special button by pressing the driver turns off the start-stop system. However, this function only works within one ignition switching cycle. When you restart the motor, you need to press the button again.
You can run the system startup by turning off the signal wire from the battery level sensor. At the same time, icons pointing to the start-stop attempts will appear on the instrument combinations. An error will be present in the control block memory, but it will not affect the characteristics of the car. A negative torque will be the lack of communication of electronics with the battery, which will not allow the car to automatically monitor the charge level. On a range of Volkswagen cars, it is possible to turn off the icons on the instrument combinations through the diagnostic interface. However, this feature depends on the version of the instrument combinations installed on the machine.
Disable start-stop is possible by removing the plug from the function control button. The control unit fixes the break in the circuit and disables the system.
Condenser wpa to a button control circuit. Additional capacity emulates a motor starting situation by pressing a button. The control unit, obtaining such a signal deactivates the system. The solution is not suitable for all cars.
On some cars Volkswagen it is possible to complete the system of the diagnostic program "Vasya-Diagnostic". The operation is carried out in specialized centers or independently, if the owner has equipment and can use them.

Photo Gallery

Video

Ways to disconnect the START / STOP function on BMW cars are shown in the roller, removed for the Bimmerdoc channel.

The stop start system (in another interpretation - the start-stop system) is designed to save fuel, reducing harmful emissions and noise by reducing the engine time at idle. As the car's operation practice shows, the idling mode is up to 30% of the total engine operation time. This is facilitated by frequent stops on traffic lights, finding in traffic jams that are attributes of a large city.

Until recently, the Stop start system was used mainly on hybrid cars. Today the situation is radically changing. Almost all the leading automakers have in their model row cars equipped with this system.

The principle of operation of the STOP-start system is to turn off the engine when the car is stopped and its quick start when you press the clutch pedal (mechanical transmission) or the release of brake pedal (automatic transmission).

Constructive Stop Start system combines a device that provides multiple engine start, and an electronic control system.

There are several approaches to the implementation of the multiple engine start function:

stressed starter;
reversing generator (starter generator);
injection of fuel into cylinders and flammability of the mixture.

The easiest and reliable in terms of design is the system Stop & Start. Bosch firms. Thanks to this system, the name "Stop Start" has become a none name of the rest of the systems. The system is installed on Audi, BMW, Volkswagen cars and provides reduction in fuel consumption, harmful emissions up to 8%.

The basis of the system is a special starter, designed for a large number of engine launches and having an increased service life. The starter is equipped with a reinforced low-noise drive mechanism that guarantees a quick, reliable and silent engine start.

The control system is stopped and starting the engine, as well as controlling the battery charge. Like all modern electronic systems, it includes input sensors, control unit and actuators.

The system does not have its electronic block, but uses the power of the engine control unit in which the appropriate software is installed. Executive systems of the system are injectors of the injection system, ignition coils, starter.

The work of the STOP & START system is cyclic (shutting down-launch). Turning off the engine occurs under the following conditions:

full stop of the car;
transfer the gearbox lever to the neutral position and release of the clutch pedal - for a car with a manual transmission;
pressed brake pedal - for a car with an automatic transmission.

In addition, when making a solution to turn off the engine, the system estimates the frequency of engine speed, coolant temperature, rechargeable battery level, climatic installation mode.

With a non-working motor, power consumers of electrical energy (air conditioner, audio systems, etc.) are made from the battery.

When you press the clutch pedal (releasing the brake pedal on a car with an automatic transmission), the system activates the starter and runs the engine. In the future, the system's cycle is repeated.

If the battery charge is lowered below the specified value, the system based on the signal of the corresponding sensor and the control unit command is turned off. The inclusion of the system is made after charging the battery. The system can be forcibly disabled using a special button on the instrument panel.

Start Stop System next generation Turns off the engine already in the process of stopping the car (up to its complete stop), which is achieved even more fuel economy. The process of stopping the car is recognized by the control unit according to certain parameters of the movement: the speed of movement to braking, the speed of the movement at the current time, the absence of a slope of the road, the absence of maneuvering. If motion parameters do not match the specified values, the system is triggered after a complete stop of the car.

Similar design has a system ISG. (IDLE STOP & GO) From Kia Motors. The main difference of this system is to manage the automotive generator. Thus, at high load on the engine to reduce fuel consumption, the generator is turned off, when braking, the generator turns on and the battery is recharged. When the battery power drops below 75% of the nominal system turns off. The system is also turned off when using an air conditioner.

System Stars. (STARTER ALTERNATOR REVERSIBLE SYSTEM), manufactured by Valeo, use a reversing generator in its work. The system is installed on Citroen, Mercedes vehicles and reduces fuel consumption to 10%.

Reversive generator It is an AC electrical machine, which, depending on the conditions, can perform the functions of the generator and starter. The operation of the reversing generator provides a special drive belt and a reversible tensioner, allowing to transmit force in two directions. The reversing generator works silently and has a smaller start time (0.4C compared with 0.8C for a regular starter).

The STARS system is controlled by a separate electronic control unit that interacts with the engine control unit. The composition of the input sensors is similar to other Stop Start systems.

The further development of this system is the use of recovery braking to create additional energy and reduce fuel consumption.

Mazda has developed a system Siss. (SMART IDLE STOP SYSTEM), which is an alternative to other Stop Start systems. Another name of the system i-Stop.. In it, the fuel injection into cylinders and the ignition of the fuel mixture is used for repeated engine launch. The system is installed on gasoline engines equipped with direct fuel injection.

To ensure the operation of the Siss system, the pistons in the cylinders stop in certain positions that are optimal for further engine launch. With the start of movement (when the brake pedal is released), fuel is injected into the cylinders and the fuel-air mixture is flammable, thus the engine starts. When starting the engine in addition to the energy of fuel combustion, the starter energy is used, which is included for a short time.

Reducing the fuel consumption when applying this system reaches 9%. The Siss system only works with automatic transmission.

What is the START-STOP system?

START STOP SYSTEM IN CAR

Special calculations were made with the studies at which it was found that the engine of any car, at idle, for example, when stopped in urban traffic jams, and in front of traffic lights, consumes about 30% fuel from a total consumption. One third of the fully filled benzobak can uselessly fly into the exhaust pipe, besides significantly polluting the environment.

Since the problem is determined, it is necessary to solve it in the age of electronics, it is quite achievable. To reduce empty spending, the start-stop management system was invented, which controls the operation of the engine when the car costs without movement.

Initially, the start-stop system was intended and installed only on hybrid cars having electric and gasoline engines. Now it is beginning to be equipped with an increasing number of ordinary cars.

The developers believe that after a few years, the start-stop system will be implemented for the most part of the newly produced cars, and through some ten years it will be installed almost at all, even old machines.

Working system "Start Stop"

The principle of control is very simple. If the car stopped, the engine is immediately jammed, the STOP system is triggered. On cars with manual control of the gearbox, when performing a slight pressure on the clutch pedal, and with an automatic box, when the brake pedal is released, it starts again, the START system is triggered. This allows you to calmly stand the car arbitrarily for a long time with forced stops that do not consume fuel.

The use of such a design when driving in conditions of a major city showed a very substantial economy of fuel, and when calculating a mass scale, it is even difficult to imagine its advantages. No existing savings system, even approximately, cannot be compared with it.

The "Start-Stop" system of two main components:

electronic tracking unit;
significantly improved startup system.

The "Start-Stop" control unit is serious enough, unites and takes into account the operation of many engine systems. For example, if the motor in winter conditions has not yet been warmed or there are other substantive problems, the driver forgot to be fastened to the seat belt - the device will not work. Thus, the "smart" managing does not make the engine shutdown, if it is harmful in this situation.

The history of the creation and application of the start-stop system today

This device "Start-Stop" system was born in Japan, and was first tested on some Toyota cars in the 80s of the twentieth century. Ten years later, she was installed on fiats and folkswagenes. Since the beginning of the new century, continue to improve and put on an increasing number of cars, such as BMW, Audi, Renault, Citroen, Peugeot and many other eminent brands.

Adding recovery for "Start Stop"

With the next refinement of the start-stop system, the maximum decided to remove the load from the power unit, thus reducing the energy consumption. The generator is turned off and connects when the machine braking or the battery capacity is dropped below the level of 75%.

The use of the start-stop system made it possible to reduce the consumption of fuel for the middle class of cars almost up to 3-5 liters. 100 kilometers of run.

However, the "smart" and in all conditions the advanced start-stop system cannot take into account all the circumstances of the condition of the machine and riding in the extremely difficult conditions of the city. If unforeseen situations occur, the driver has the ability to instantly disable it by simply pressing the button.

Named flaws of the start-stop system

Serious innovations are always significant in price, and only in this regard are two lack of design of the start-stop system.

The first is the presence of an expensive, specially developed starter capable of carrying out very frequent and instantaneous engine launch. With his breakdown, repair and especially the replacement is very expensive.
The second is similar, this is that the battery is needed for such machines, significantly greater capacity than on ordinary cars. It works in very complex modes of constant discharge charging. Cost when replacing the battery also flies into a significant amount.

If we take into account the price of gasoline and the constant growth of its cost, then the money saved in this way, many times overlap the costs mentioned above, in the case of a complete replacement of the starter or battery.

Currently, all automakers are presented by fairly strict requirements, within the framework of the World Ecology Protection Project. In this regard, the engineers are simply forced not to give some new developments to demonstrate the fully embarrassed in them, practically, consciously lowering the technical capabilities of some power units and other knots of the car, although, sometimes, this causes financial damage to automotive firms.

In addition, a company has been deployed on the development of special additional devices and systems designed to lower the costs of fuel in cars and make the release of harmful products to the atmosphere as low as possible. It is worth agreeing, the task is not simple, and even on the overall background of the highest competition, "reigning" in the world automotive market.

One of the above-mentioned auxiliary systems was named start-stop, literally due to the algorithm of its functioning. The task of this option includes an automatic shutdown of the car power unit at its full stop, followed by automatic inclusion according to a specific signal-programmed signal.

For example, if the car moves with frequent stops in a metropolis, with its constant traffic jams. It is at such moments that the start-stop system comes into effect. The engine stopped the car turns off, and after the driver presses the accelerator pedal, which will serve as a signal to resume movement, starts again. This signal may be associated with another module, depending on the design and model of the car.

Naturally, an increase in the number of power starts not only reduces the operation of the DVS, but also requires a powerful battery and a reliable starter in the car. Although, there are "Start-Stop" systems that produce the engine start from the generator. The system is electronic, fully automated, and is based on the operation of numerous sensors installed in all "strategic" nodes and car units. They send impulses to the ECU, which manages the entire program.

Today there are dual opinions about the feasibility of using this start-stop system. On the one hand, it saves fuel, on the other, subjected to an unjustified wear. Many automotive companies are mounted in the start-stop machines in the process of their production, but if the system is missing in the configuration, it can always be installed from third-party manufacturers, only here is the question, is it necessary to do this?

According to experts, predicted savings does not exceed 10%, it is at best. By comparing gasoline costs with the cost of purchasing and installing this option, you come to the following conclusion: installation of the start-stop system It justifies myself if the car is almost constantly operated in the conditions of movement in a large, loaded by the city. Otherwise, in this system, it is simply no need, and drove the engine at the right moment any driver can and independently. Although, maybe someone else's opinion ....

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Somehow a colleague on electronic research institutes took over Khalurku. He was caught the perfect client from the ministry: with money, but without brains. With a simplicity of the Sabigalny car and the request to "train" it takes to take domestic radio programs in stereo mode. The client was a shame that the yellow LED Stereo persistently did not want to heal. Want to know, where does the START / STOP system?

To invent the stereo-speaker my colleague did not. He came easier: I took it and soldered the harmful LED directly to the mono / step switch. The customer immediately calmed down: you press the button - the light flashes yellow, here's a stereo. You press again - here's mono.

Exactly the same "care" about a person for some time demonstrates by world car industry. Only instead of a stereon, inaccessible to the middle average, he sends him another lip.

Example The first is the norms of Euro-6 or more. Honestly to fulfill them, not approaching the cost of the car to the price of the Marshode, until it turns out. Who caught - the fool himself.

An example of the second - hybrids with the stated consumption of a liter on a hundred. In principle, you can also declare zero liters per hundred - and it will work! After all, it is not necessary to inform you to tell the buyer that the first hundred kilometers it will drag the battery, which will then discharge.

Example Third - Cars with Start / Stop mode. I drove up to the traffic light, stopped on the red - the motor immediately turns off, saving personal gasoline and public air. Green caught fire - let go of the brake (or you will give gas - it happens), the motor quickly wakes up and luckies on you. Winning is obvious!

But - only on paper. And the point is not even that extra hundreds and thousands of starts will definitely affect the resource of the machine units. And not even that especially for such cars had to be inventing batteries, which are within a half, or even two more expensive.

So what's the deal? And in the fact that the calibration it turned out: the launch vehicles frankly "sleep" at the intersections, and the misfortune was also published with saving of gasoline. And it turned out not today and not yesterday.

So that no one says that the Russians are all confused, and the author is a brake of progress (however, they will still say so), turn to our Western colleagues. The German AUTOBILD journalists took over a test of 15 cars with the START / STOP system and put the simplest experiment: it was decided to measure the start delay from the traffic light. In other words, the time of overclocking the machine is taken up to 20 km / h when the system is turned on and off. In the first case, the motor at the traffic light was de-energized by automatic, and in the second - it was thoroughly on the minimum idle, as usual.

What did I mean? For example, to accountable kilometers per hour Mazda CX-3 SkyActiv-D accelerates with silly automation for 3.15 s, although without it did the same for 1.54 s! The talentless system worsened acceleration halved, burning 1.61 s!

Slightly better than the work in Volkswagen Polo 1.4 TDI (additional delay - 1.48 s) and Hyundai i30 Blue 1.4 (1.12 s). How many beeps in the back will get their drivers at each intersection, count on themselves.

Against this background, the loss of only 20% looks already gorgeous. This is how Audi A4 3.0 TDI Quattro and Porsche 911 Carrera have shown. And Mercedes-Benz GLC 250 4Matic in general in chocolate: it was delayed only at 0.08 p.

And now about the main thing. Why introduced "Start Stop"? Do you think to save fuel? Blessed who believes. For example, Volkswagen Passat 2.0 TDI difference accounted for already ... 0.1 l / 100 km! Those who do not believe, I invite you to go through the link. Match this "economy" with the conditions sluggishly creeping city - counted less than a percent.

By the way, the future owner of the car no one warns about such a deterioration of the car dynamics. Say, pay money for innovation and save nature! And do not think about how much natural resources are additionally refused in the production of all these frills.

Error in calculations? Nothing like this! The same test was carried out back in 2012! Here are some of the then digits: BMW 116D worsened its performance by 84%, Audi A6 TDI - by 63%, Volkswagen Passat TDI - by 59%, Porsche Cayenne - by 47%. Observation of decency was managed only with a three-beam star on the radiator grille.

And how else to make a person constantly work out on a new product, if it is quite satisfied with the old one? Only declare the old goods outside the law: constantly stuffing in the head that, they say, this neandertale is burning air, devouring oil, poke the brothers in mind. Moreover, this is declared at the highest level - in words, all managers are talked for the ecology.

Against this background, tedious arguments about the dangers of frequent starts, the cost of agm-batteries, the cost of AGM-batteries are obeyed and incompetent. By the way, as for the batteries, we are explicitly hinting that others will not be at all soon. And why produce them if the AGM batteries replace the "old women" in any situation?

In general, you put on the button, light the desired light bulb - and everyone is satisfied.

The first experiments on the optimization of the engine were carried out in the middle of the seventies ready - then the Toyota company installed the mechanism that turns off the engine after the two-minute downtime to one of its models. This design was in the cars in the 80s. In 2006, Citroen was commissioned by the Start Stop device - the generator, the starter and transmission was combined into a single block.

System "Start Stop" on the car - what is it?

According to statistics, 30% of the time the motor works in good. And if so, almost one third of the motor just burns fuel - the car does not go. The fuel is wasted, environmental pollution occurs.

Stop & Start device performs the following tasks:

fuel economy;
reduction of harm to the environment;
reducing the noise of the machine.

Engineers have achieved the following effect - the motor only works during the movement of the car. Turns off the power unit automatically. Sensors are fed by the motor, he stops. When the driver presses clutch (in cars with manual transmission) or presses the brake (in machines with automatic transmission), activation occurs. Of course, this design cannot be called fully automatic - it is rather semi-automatic.

Initially, the Stop & Start system was used on hybrid motors. But when she showed her effectiveness, it began to put on simple power units.

According to experts, the Start Stop system for 2 years will be equipped with 50% of all cars produced.

How does the starting stop system work on the car?

The principle of operation "Start Stop" system is based on the engine disconnection after receiving them signals from the sensors. The device functions like this:

When the motor stop occurs, the power supply of electricity consumers in the car switches to AB.
The activation of the system occurs after squeezing the clutch or releasing the brake pedal (if on the automatic transmission). The engine is instantly started.

When the battery charge drops below a certain level, the sensor is notified by the system. It turns off and activated only after the battery gets a charge.

The driver can deactivate the system with a button on the dashboard. The algorithm of action here is this: the driver gets driving behind the wheel, hits the brake and on the Stop & Start button. After half a second, the motor is running. Typically, the buttons are equipped with light indicators - the lighting of the indicator indicates the successful start of the power unit. To drown out the motor, you need to click on the brake again, then the button.

There are different modifications of Stop & Start. For example, Kia Motors has created a device that is characterized by the fact that it can in a special control of the car generator - it turns off the generator when the load on the power unit reaches the peak. This is done in order to save fuel consumption. The system will automatically turn off when the battery charging level falls below 75%.

Valeo has developed a STARS device using a reversion generator to save fuel. It can save up to 10% fuel. Reversion generator-Decision performing several functions at once. It can be both the generator and the starter. It works almost silently, can run a motor in 0.4 seconds.

Siss is a new technology. Created by Mazda recently, the principle of recovery braking is applied. An additional source of energy is created, so the fuel consumption is reduced. The battery is charging while braking the car. The motor starts after the injection fuel to the cylinders. Such devices usually put on gasoline power units with a function of direct fuel injection. Pistons in the motor cylinders stop in a certain position to ensure normal motor start. During the start, a certain amount of fuel enters the cylinder, after ignition, the motor is launched. Starter helps the engine start faster.

Siss technology saves up to 9% fuel. The only drawback is only working with automatic transmission.

Button "Start Stop": How to use?

Cars can be started not only with the help of ignition keys - on many modern auto models there is a START STOP button. To start the car, you just need to press it once - simple and convenient. If there are no buttons on the car, it can be installed. The installation is made in the ignition lock socket or to another part of the dashboard.

The function "Start Stop" is very useful for saving fuel, but unfortunately, not all cars are equipped with it.

System "Start Stop": pros and cons

Buttons "Start Stop" are improved, but they remain difficult to disappear. Therefore, part of motorists considers the buttons with a useless addition, believing that their minuses completely crossed the benefits. First about the advantages.

What do not say, but "start-stop" really helps reduce the consumption of fuel. Savings can be 10%. This is a real "Must-Have" for those who practice a permanent ride within the city with its traffic jams and traffic lights.

No need to forget about the ecological component. When the motor works, many harmful substances are formed, which are thrown into the atmosphere - the use of "start-stop" reduces the volume of emissions.

During idle in traffic, the engine will not work. Therefore, there will be no noise from him. Loads on the parts of the motor and the crankshaft are reduced.

And now about minuses. The main is the increase in the load on the battery and the starter, which can lead to their breakdown. To make a car, you first need to press on the brake, and some motorists forget to do it.

If you need to set the alarm to the car with the button, prepare for the fact that the installation will be expensive. If you have the button, you have to put a reinforced starter, and it is not suiced. This fuel economy will be provided only when driving from one traffic light to another - "Start Stop" loses its effectiveness when you have to move jerks in large traffic jams. In this case, the starter works often, which leads to a decrease in the charge of the battery. To fill it takes time, and it is always lacking. Because of this, there is an automatic shutdown of the system.

The developers are constantly improving Stop & Start - we hope that in the near future its minuses will be minimized. The number of models of cars with such a system multiplies in arithmetic progression.

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