How fuel consumption depends on the size of the rubber. Effect of tires on car fuel consumption, energy saving rubber

How to save on fuel for the car and how the tire size affects the fuel consumption, clarification from the battery base specialists and many other useful information For car owners about how to care for your car. Always glad you, come, call!

A large number of drivers plan to install the widest tires with larger planting diameters to improve the visual view. vehicle. But few people think about the direct influence of tires on gasoline consumption in the process of use. The main object of disagreement is the landing diameter of tires, as well as their profile width. At the moment, all drivers are divided into two different camps. Some drivers are trying with all their might prove to others that buying the size tires by less they were able to significantly increase the fuel economy of their car.

What arguments are the defenders of the theory

People who protect theories offer their arguments on the fact that there are much more important efforts to rotate the wheels of increased diameter. Based on this, the ride and acceleration start processes need an increased amount of fuel, nevertheless the average speed will increase by 10-15 kilometers per hour (which will be by the way to actover of active driving). Despite the objectivity of the information, calculate the exact number of increased fuel losses is quite difficult, since it depends on a large number of a wide variety of factors (weight of the disk, technical condition Auto, etc.).

The most ardent protesters of theory are convinced that the fuel consumption increases nonlinearly, so directly depends on the selected speed \u200b\u200bregime. In the process of driving at low speeds, the increased consumption of gasoline will not be significant, but with increasing speeds of more than 40-50 kilometers per hour its consumption increases sharply.

The arguments of the second party

In search of truth, what kind of wheel size affects fuel consumption, most of the experts resort to science called physics. Due to this, there is a theory according to which the minimum fuel losses will cause an increased amount of motor revolutions, because the work will occur equivalent. Fuel consumption mainly will depend in the literal sense from the mass of the car and aerodynamic braking.

There is a "car theory" which implies the presence of a special formula, according to which the combustion consumption can be calculated, which makes it possible to neglect the dynamic radius indicators. It should take into account the used height of the tire profile: after all, the higher the height of the profile - the higher the fuel consumption.

Profile width and its role in fuel efficiency

Most likely, everyone understands that the wheels who have a wider profile are needed high gasoline costs, because the weight of this wheel will be large. Plus, the motor needed increased efforts to move the car from the scene. In addition to weight, it usually becomes a larger area of \u200b\u200bcontact spot, and at the same time with rolling resistance and acoustic noise.

Directly affects the cost economy. The subject of disputes are two parameters: wheel diameter and profile width. Soon, the adherents of this theory appeared, which argued that they bought the wheels of a smaller diameter or less width and was already significantly saved on gasoline, and opponents that rose such an assumption.

Arguments of defenders

It is believed that with an increase in the diameter of the wheels to start motion, the engine requires an order of magnitude more effort. Start and acceleration will require more fuel, however maximum speed This will increase by 5-10 km / h. In this case, the exact fuel loss is extremely difficult, since the consumption of gasoline depends on various factors, including weight.

Adherents of this version believe that consumption increases non-linearly and depends on the speed of movement. At low speeds, the difference in consumption will be insignificant, and at high speed or during acceleration, fuel consumption will significantly increase.

Arguments of opponents

In an effort to find out how the size of the tires is affected by fuel consumption, many turn to the laws of physics, examples from life. Many of them argue that a minor loss will be observed only with the difference in the number of engine speeds, since the work will be performed the same. Fuel consumption to greater extent depends on aerodynamic braking and car mass.

The "car theory" denotes the existence of the QS fuel consumption formula, which reduces (read, neglects the values \u200b\u200bof the dynamic radius and rolling radius. It demonstrates the minimum flow rate reduction (the score is per millilitars) with a decrease in the dynamic diameter of the wheels. It is also important to take into account the height of the tire profile, which on the wheels of a smaller diameter can be reduced to all aspirations for savings if new tires It will be higher than the former.

Profile width and its effect on fuel consumption

The wider the tire profile, the more fuel consumption, since the weight of the wheel increases significantly. At the same time, the engine is again required more effort to move the vehicle. In addition to weight, the contact stain is also increasing, noise and, accordingly, resistance to rolling, which again negatively affects fuel consumption, requiring high costs.

In fact, the fuel consumption is significantly affected by the kinematic coefficient of rolling resistance, which grows with an increase in the width of the profile and decrease the external diameter of the tire, air pressure and changes in the tire design. Other ways are not subject to substantial fuel savings.

22.11.2015

Many drivers seek to establish the widest possible tires with large planting diameters to improve the visual type of car. However, few people think about the direct effect of tires on fuel consumption during operation. The main object of disagreement is the landing diameter of tires and their profile width. To date, all drivers were divided into two directly opposite camps. One part of the drivers is trying to unsuccessfully prove to others that bypassing a smaller tires they were able to significantly increase the fuel efficiency of their car.

Arguments of defenders theory

The defenders of the theory offer arguments regarding the fact that there are much more important efforts to rotate wheels of larger diameter. Accordingly, for the processes of the start of movement and acceleration, you will need an increased amount of gasoline, but the average speed at the same time will increase by 10-15 km / h (which will be on hand to lovers of active ride style). Despite the objectivity of the data, calculate the exact percentage of increased fuel losses is extremely difficult, as it depends on a number of a variety of factors (weight of the disk, technical condition of the machine, etc.).

The most ardent protesters are confident that fuel consumption increases nonlinearly, so directly depends on the selected high-speed mode. In the process of movement at low speeds, the increased consumption of fuel will not be significant, but when developing speeds over 40-50 km / h, its consumption will grow sharply.

Arguments of opponents

In attempts to find out the truth, what effect the size of the wheels on the fuel consumption has, most experts resort to knowledge of physics. Due to this, there is a theory according to which small fuel losses will cause the increased number of engine speeds, because the work will be made equivalent. Gasoline consumption will mainly depend directly on the mass of vehicle and aerodynamic braking.

The existing "car theory" implies the presence of a special formula that can calculate the way consumption of gasoline QS, which allows you to neglect the dynamic values \u200b\u200bof the radius. At the same time, you need to take into account the tire profile height: after all, the more the height of the profile is the more fuel consumption.

Profile width and its role in fuel efficiency

Probably everyone understands that the wheels with a wider profile require high fuel costs, because the weight of such a wheel will be large. In addition to this, the engine will need increased efforts to move the car from the spot. In addition to weight, the area of \u200b\u200bcontact spot usually increases, and at the same time with rolling resistance and acoustic noise.

T o that the machine consumes fuel noticeably more than the manufacturer declared: standard driving cycles until recently differed very much on the load from actual exploitation. But sometimes the wine lies on the driver.

The greater Rubber of the larger planting diameter on heavier disks leads to a noticeable drop in the dynamics and an increase in fuel consumption. Well, as the pressure and fuel consumption are connected, I think to explain it is not necessary. Not in vain B. last years TPMS pressure control systems are becoming standard equipment on all classes. And in the US and Europe since 2014, all new cars Must be equipped with a similar system.

America I will not open: the higher the pressure in the wheel, the lower the fuel consumption. True, it is not linearly reduced, after a certain threshold, fuel consumption is almost never changed. But there are increasingly noticeable negative phenomena associated with pumping. And this is not only the loss of comfort, but also the deterioration of the coupling qualities of the tire, and the general deterioration of controllability due to the violation of the frequency characteristics of the tire-suspension tire.

For this reason, the tires have the recommended pressure that the manufacturer always indicates the documentation. Typically, for basic tires, the data can be found on the information stickers on the body. The optimal pressure indicated on the stickers is determined experimentally and depends on the characteristics specific model Tires. It is not worth exceeding it without understanding the processes taking place.

The increase in the contact area of \u200b\u200bthe tire with the surface of the road is usually associated with increasing tire width. But the increase in external diameter is also a fairly effective measure. And this is understandable: more external diameter - more contact stain. Unfortunately, the large wheel has disadvantages, first of all, the increased masses of the tire and wheels.

Rock on!

Fuel efficiency and grip in practice are poorly combined in one tire model. To achieve the smallest fuel consumption, a separate line of rubber CONTIECOCOCTACT is produced. It is distinguished by less rolling resistance, smaller mass, less resource. And, of course, the maximum efficiency, even in comparison with ContiPRemiumContact 6.

But in the line of tires, there is a very classic dimension and type and one completely new model. Do not be surprised, its dimension is 195/55 R20. I did not describe, the planting diameter is 20 inches, and the width of the tire is 195 mm.

Remember that I wrote above about the connection of the working pressure of the tire, its widths and diameter with fuel consumption and clutch? It seems that engineers felt a new way to reduce fuel consumption. This path is not easy, it includes several solutions at once.

First, the new tire material makes the wheel grip with an expensive efficient.

Secondly, even more improves the grip of the large outer diameter of the wheel. But the width of the tire is reduced to reduce rolling resistance.

And most importantly - do not forget about the pressure! The developed tread material allows you to maintain the grip with a larger internal pressure of the tire, which, as you already understood, gives a gain in economy.

To improve appearance Machines, drivers put extremely large tire widths with large landing diameter. Meanwhile, few of the owners of the car thought about how the size of the tire would affect the consumption of fuel during operation. The key theme in disputes between car owners is a discussion of the internal diameter of the tire and the height of the profile.

Today, disputes about the effect of tire size on fuel consumption, divided car owners into two opposing groups. One half of the drivers proves to others that the purchase of a smaller-format bus will save on fuel.

The arguments of supporters of this theory

Supporters of the theory argue their position in that when the wheel is rotated with a large diameter, more effort is required. According to such allegations in order to come into motion, the car will require more fuel, its average speed will grow by 10-15 km / h. Calculate the percentage of growing fuel consumption is quite problematic, because the result will depend on many indicators: the mass of the wheels, the condition of the road surface, weather conditions.

Supporters of the theory argue that fuel consumption can grow nonlinearly and is depending on the speed-directed directed by the driver. At low speeds, the percentage of increased fuel consumption will be inconspicuous, whereas when driving more than 40-50 km / h, fuel consumption will begin to grow.

Opponent arguments

In search of truth, many experts use scientific facts and laws of physics. There is an opinion that minor fuel losses may cause an increase in the number of revolutions by the engine. Opponents argue that the main factor affecting fuel consumption is the total mass of the car and aerodynamic indicators when braking.

Many drivers are known for the "car theory", which is a mathematical formula. With the help of the formula, the level of fuel consumption Q S is calculated, which permits to neglect the speakers. During counting, the profile height at the tire is taken into account than it is more, the higher the fuel consumption.

The role of the profile width in the theory of fuel costs

Obviously, wheels with a wide profile more fuel costs, because their mass is higher. Motor needs to attach more strength so that the car began to move. The higher the mass of the car, the greater the spot of the wheel contact, and therefore increases the rolling resistance and acoustic comfort.