How to calculate car displacement and fuel consumption, how to calculate the fuel consumption of a c

i displacement refers to the sum of the working volume of all cylinders of the engine, that is, the sum of the combustion chamber volume of all cylinders. Generally speaking, fuel consumption is about fuel consumption per 100 kilometers, which is the amount of fuel consumed by the car after driving 100 kilometers. There is no necessary relationship between displacement and fuel consumption, but generally the fuel consumption of cars with large displacement is a little higher.

There are many factors that affect fuel consumption, such as: displacement, speed, rpm, wind resistance, road conditions, driving style and even tire pressure

No, because the size of the displacement is not only related to the size of the cylinder warp, but also has a lot to do with the compression ratio.

And the weight of the car with the same displacement is not the same, the tire size is different, and the transmission technology.

EFI technology, number of valves, and many other places are also different.

And in addition to the theoretical situation, fuel consumption is also related to road conditions, load, wind resistance, speed and other conditions.

Therefore, there is only one proportional relationship between the two, and there is no way to convert.

Displacement refers to the volume of gas discharged after fuel combustion, right? It has nothing to do with the concept of fuel consumption, if there is, it can only be said that it is a car of the same brand and style. Theoretically, the fuel consumption of a large displacement is much smaller than that of a small displacement, and the fuel consumption of different brands of cars with the same displacement is not necessarily the same, in terms of burning gasoline.

Cars with a displacement of less than 100 kilometers without air conditioning will consume about 5-7 liters in urban areas. Turn on the air conditioner 7-8 liters.

The displacement of the car, without air conditioning, 100 kilometers of urban fuel consumption is about 6-8 liters. Turn on the air conditioner 8-11 liters.

The fuel consumption of a car with a displacement of 100 kilometers is about 7-12 liters.

This specific conversion is estimated to be answered only by professionals or veterans

When a car is used as a private car, fuel consumption must be one of the concerns of the owner. After all, domestic oil prices do not coincide with international oil prices, so it is necessary to save some money. As for the calculation of fuel consumption, many veteran drivers have their own set.

Here are several ways to calculate fuel consumption for your reference.

How to calculate:

There is a relatively accurate method of fuel consumption: keep refueling until the gun jumps and the odometer goes to zero. The second refueling is still added to the jump gun, and then the refueling amount is divided by the mileage of the odometer to get the fuel consumption.

Then, according to this method, the fuel consumption can be calculated more accurately each time. After that, before each jump, it will be easier to calculate fuel consumption by refueling. You can use excel to design a simple calculation table.

Professional calculation method: The basic calculation method is fuel consumption per 100 km: The basic calculation method is fuel consumption per 100 km.

The manufacturer also provides this parameter, which is used to divide the actual fuel consumption by the actual mileage. That is, fuel consumption per 100 km = fuel consumption (l) mileage (km) 100

For example, if a litre car travels 500 km and consumes 40 litres of fuel at the same time, then fuel consumption per 100 km = 40 500 100 = 8 litres. If a liter car has traveled 500 kilometers and consumed 55 liters of fuel, then there is none. Fuel consumption per 100 km = 55 500 100 = 11 liters.

This is a very simple formula. A lot of people can figure it out. If you calculate the cumulative amount of fuel per purchase from the time you use the car and then divide it by the total mileage, you can get a more precise fuel consumption of 100 km using the above formula.

But what if we don't have these raw fuel purchase data? Many people put the indicated amount of fuel gauge and odometer into the above formula for calculation, which involves the issue of gauges. If you do not pay attention to the accuracy of the gauge, the calculation result will have a large error.

In the end, the problem with fuel consumption is really that there are too many variables to be absolutely sure whether fuel consumption is high or low. Although there are many factors that affect fuel consumption, there are still the following points that can be paid attention to in daily life:

Timely maintenance to ensure accurate tire pressure.

Avoid idling the vehicle for long periods of time.

Try to drive at a constant speed.

Clean unnecessary heavy objects from your vehicle.

Plan ahead to avoid congestion.

The best way to calculate the fuel consumption of a car is to multiply the displacement, which is the median fuel consumption of 100 km, so that you can get an accurate fuel consumption.

Generally, the fuel consumption of a car can be estimated by dividing the mileage of the car by the amount of fuel consumed by the car. This fuel consumption is fuel consumption per unit mileage.

It can be determined according to the displacement of the car, according to the engine of the car, and the calculation can be made based on these data.

It can be viewed through the fuel consumption display on the dashboard, or you can calculate it yourself:

1. Usually we all believe that the engine displacement determines the fuel consumption of the car, which can be seen in this way under normal circumstances, but if it is accurate, the engine displacement only reflects the characteristics of the engine, and the fuel consumption of the whole vehicle is different from it;

2. In a relative sense, the size of the car's displacement is not proportional to the size of the fuel consumption, for example, the same 4-liter displacement of the car, the fuel consumption is not necessarily equal. But in an absolute sense, a car with a large displacement will definitely consume more fuel than a car with a lower displacement. For example, within 100 kilometers, a car with a displacement of 4 liters will definitely consume more fuel than a car with a displacement of 1 liter;

3. In a general sense, the larger the compression ratio of the automobile engine, the higher the thermal efficiency, and the more fuel-efficient the car. However, the gasoline currently available on the market in China is only 97 at most, and the gasoline engine with a compression ratio of more than 10 0 needs 98 or more gasoline. Since there is no high-grade oil in China for high-compression ratio cars, it has formed a common phenomenon of low-grade oil for imported automobiles with high compression ratio, and then there is either the car shivering or stalling, or manually adjusting the relevant parameters of the engine, in order to sacrifice the amount of oil to "avoid" the phenomenon of the car lying in the nest.