Quite a difficult car problem, non experts do not want.

1: Different, different engine conditions (5 types), fuel consumption is also different! The ideal (economical) air-fuel ratio, i.e. 1 gram of gasoline to gram air can be completely combusted.

And starting, the idle air-fuel ratio is only so the amount of gasoline entering the cylinder in each working cycle is very large (the throttle is only opened a little bit), and as the throttle is increased a little bit (increasing the intake volume), the air-fuel ratio is also a little smaller. The amount of oil entering the cylinder in each working cycle also decreases a little bit, but as the throttle increases a little bit, the air intake volume is increased and the frequency of the working cycle is accelerated (the speed is increased), so the fuel consumption per unit time is increased.

2: It is because the air intake is increased (the throttle is increased) that the oil intake is increased. The amount of oil intake is controlled by the amount of air intake.

The size of the 12345 gear is called the size of the load, and the size of the load affects the change of the inlet vacuum, and the change of the inlet vacuum further affects the change of the oil intake. So the greater the load, the greater the oil intake, and the greater the fuel consumption!

No need The amount of oil entering the cylinder is the same.

It's just a matter of how much air comes in and how fast it goes, and it's only when you write about special eco-cars that you use electronic spot spray technology.

The cylinder is full of high-temperature and high-pressure fuel gas, and only high pressure is required, that is, to increase the intake volume.

Valves, fuel injection, and so on, the process of intake and exhaust is very fast, and some cheap cars can lose fuel and power because they don't ignite once or twice per second.

The second problem is that the Italian Renaissance was very mature and there were too many cylinders.

It is more conducive to the full combustion of fuel and air.

Because the engine requires some inertia to move, the amount of fuel injected is like that every time.

I've seen Buick with problems with the fuel injection system, burning 35 liters of oil per 100 kilometers, but its displacement is only power, and it will not change because of the problem of fuel injection.

First question:

Same. It just speeds up the duty cycle frequency.

Second question:

Your question is too professional, you can read the instructions in Poussin's manual.

The impact force generated by the car when it encounters a collision is very large, so the airbag must have a considerable cushioning force to ensure safety.

The collision occurs in an instant, and without a large impact, it cannot be opened instantly, and the airbag loses its meaning.

1.Put the front increased driver's buffer zone, safety high point 2The cost of front-wheel drive is low, and high-end cars are still rear-wheel drive or four-wheel drive.

3.The low gear and high speed hurt the engine, and the other gears were not fully run-in4There is no inner tube, so it is not easy to puncture at high speeds.

5.Compressor resistance consumes the engine's power.

The engines are all in front, wouldn't it be better to put them in the back? Why is a sedan front-wheel drive?

The design and layout of the car is relatively easy, there is rear drive, but the layout and chassis requirements are higher, and it is generally a high-end car rear drive.

Generally supercars are what you say.

1.Put the front increased driver's buffer zone, safety is high, and the overall design cost is also low 2Low cost of precursor.

3.I'm afraid that you will hurt the engine at low gear and high speed.

4.The tires don't have an inner tube, but they are either vacuum, or ordinary inflated 5At this time, the engine has an extra air conditioning compressor.