What is the fuel economy experimental project?

Fuel economy refers to the ability to drive economically with as little fuel consumption as possible while ensuring power.

According to the general rules of automobile road test methods /T 12534- 1990.

Test method for fuel consumption of commercial vehicles GB/GB/T l2545.2-200 1+0

The test items are as follows:

1, direct throttle fully open acceleration fuel consumption test.

2. Constant speed fuel consumption test.

3. Multi-condition fuel consumption test.

4. Average fuel consumption test under extreme conditions.

The fuel economy of an automobile engine is usually evaluated by the effective fuel consumption rate be(ge) or the effective efficiency η E. Because it can't reflect the influence of the engine's power utilization and driving conditions on a specific automobile, it can't be directly used to evaluate the fuel economy of the whole vehicle.

The evaluation index of fuel economy usually selects the fuel consumption per unit trip, that is, L/ 100km, or the fuel consumption per unit transportation, that is, L/ 100km and L/kpkm. The former is used to compare the fuel economy of cars with the same capacity, and it can also be used to analyze the influence of different components (such as engine and transmission system) on the fuel economy of cars. The latter is often used to compare and evaluate the fuel economy of cars with different capacities. The larger the value, the worse the fuel economy of the car. Km/L can also be used as an evaluation index, which is called automobile economic coefficient. For example, the number of miles per gallon of fuel used in the United States is MPG or mile/USgal. The greater the value, the better the fuel economy of the car.