Fuel consumption Calculation method Fuel consumption

- Apr 11, 2018-

Fuel consumption Calculation method Fuel consumption


 1. Theoretical rack fuel consumption test

(The weight of the car is full or full load.) The engine is placed on a gantry, the ambient temperature is controlled, the front fan is blown, and the water is loaded on the back to simulate the running status of the car. The computer is used to control and calculate and draw: Power, Raise power, torque, cylinder pressure, intake and exhaust temperature, 100 km and other fuel consumption data and curve charts. The fuel consumption data of this one hundred kilometers is not the same as the actual data of everybody. It is used by the manufacturers to adjust the data of the engine and the commissioning vehicle. Some data on vehicle propaganda products are used in this data; some data on vehicle propaganda products are given based on the results of two authoritative fuel consumption tests and then revised data on fuel consumption such as one hundred kilometers. The number of people driving in general is higher than this. Individuals on the downwind and downhill roads can do everything possible to use fuel-efficient methods and inaccurate refueling measures can be lower than the data on manufacturers’ promotional materials. What is more, what kind of fuel-saving competition, to minimize the weight of the car (the weight of the car is not fully loaded), what barefoot, empty slide, empty the back box and so on, when running the fuel consumption has no meaning whatsoever . [2] 

2, authoritative fuel consumption test

On the special track of a special experimental parking yard, the specified humidity, air pressure, tire pressure, etc. shall be maintained at full speed and at constant speed (the weight shall be filled with people and the back box plus weights); with special measuring instruments (with Scale measuring cups, flowmeters, etc.) Cut off the original fuel supply system of the vehicle and use the oil in the measuring cup to run for dozens or hundreds of meters (as if this is not the case, do not calculate the fuel consumption during acceleration and do not coast). , In addition to the second calculated 100 kilometers and other fuel consumption data.

3, more accurate fuel consumption test

A dedicated person selects the experimental route and runs a 100 km loop with a dedicated fuel tank (you can calculate the fuel consumption when accelerating, but it cannot coast), except for the actual fuel consumption calculated by the second 100 km.

4, more troublesome test

The newspapers and magazines of the more troublesome newspapers and magazines actually use the ordinary experimental roads for fuel consumption by the newspapers and magazines organizations. After using the same refuelling gun and drawing the parking positions of the front and rear wheels on the ground, When the oil is slowly added to the pump, it may return to the gas station at the same speed after running for 100 km at full speed or under full load. Using the same refuelling gun, the oil is slowly added again. Looking at the number of fuel dispensers when they flowed out, they calculated the fuel consumption data for the actual 100 km (not full, no weight was added to the back box). The 100km fuel consumption data includes acceleration, small amounts of deceleration and oil slippage, and individual driving skill errors; it is a bit of significance to get closer to the actual data on long-distance running at economic speed.

5, common and simple and feasible fuel consumption test that can be used often

We can fix gas stations (choose good, accurate, old gas stations), use the same refuelling gun at the same gas station to add oil to the rifles or slowly add it to the just-flown time. At this time, the odometer will be zeroed and it can be used to run 100 kilometers or long distances. It can also be the mileage actually used for work. When it goes to the fuel tank with fuel and the emergency light is on, the same gas station will use the same refuelling gun to put the oil. Add to the jumper or slowly add to how much oil was added when it just flowed out. Calculate the fuel consumption of one hundred kilometers using the added oil and the number of kilometers run. For example, after running 100 kilometers plus 7.3 liters of oil, the fuel consumption per 100 kilometers is 7.3 liters (with the fuel tank filling the emergency lights will not light). For example, when you go to the fuel tank with fuel and the emergency light is on, add 36 liters of oil to the gas station to see the odometer is 450 kilometers. Divide the 36 liters by 4.5 to get 8, this 8 is your 100 kilometers fuel consumption. For another example, if you ran 140 kilometers casually and added 9.3 liters of oil to the same gas station, you would use 9.3 liters divided by 1.4 to get 6.64. This 6.64 is your 100 kilometers fuel consumption. No matter how you calculate fuel consumption, you must be the same refueling situation, flow out or jump shot. This is the data that is closer to the actual long-distance data that people actually use to run cars, common use data in suburban areas, or traffic jams and smooth traffic in the city. This is of practical significance, but it is inconsistent with the manufacturer's data. Some people have more fuel consumption and some have lower fuel consumption. This is related to your road conditions, distance, and driving skills.

6, can refer to the simple fuel consumption calculation

Fill up the oil to the automatic jump gun, drive the road to the tank with fuel and the emergency light just lights up to see how many kilometers you ran. With 50 liters minus 15 liters, fuel consumption is simply calculated. For example, if you run 420 kilometers and use 35 liters minus 15 liters to get 35 liters and divide by 4.2 to get 8.333, this 8.333 is your actual crude 100km fuel consumption.