Air conditioning affects power, so it costs fuel. How much power does this affect? About 1.0 liters of a small-displacement car, air-conditioning has a greater impact on power. Daily driving will consume 15% to 20% of engine power.
More than 1.6 liters less than 2.5 liters, or higher displacement cars, the impact is very small, or basically no effect, can not feel.
Air conditioning will directly affect engine power
There are two kinds of air-conditioning in the car, one is independent and the other is non-independent. The family car uses non-independent air conditioning, that is, it is directly powered by engine power.
When the engine is running, it is necessary to divide part of the power into the car air-conditioner. The most important core of automotive air-conditioning refrigeration is the compressor that is the most expensive part.
The daily running power of the car compressor is directly deducted from the running power of the car engine. Then I can calculate it.
Theoretically, air conditioning does not account for engine power
Now most engines with engine power above 100 kilowatts are turbocharged. For example, Renault 1.6T can have 140 kilowatts.
Data on the car engine, this 100 kilowatts of power, driving air conditioning and refrigeration is completely OK, there will be no lack of power.
However, this is book data. It should be noted that the car engine just said that more than one hundred is the highest power, and that the accelerator is more than one hundred kilowatts when it is pressed in the end.
However, the actual use of vehicles, air conditioning accounted for a relatively large
Usually we are less likely to step on so much, the highest power does not represent the power you use now, when you open at low speed, the power is usually only about 30%.
This part of the power must also overcome the vehicle's resistance, charge the battery, compensate for the electrical energy consumption of the appliance, the air-conditioner blower, the central control lighting, the radio, etc. Then some steering and braking may help and also use electricity. Use it.
At this time, when you look at the compressor's compression power, it's not a big deal. It's 3-5 kWh. It sounds like drizzle, but that's just the case. It's not a small percentage.
Small-displacement cars have a large impact, occupying 22% of power
Let's start with the small-displacement, 1.2-engine engine is about 60 kilowatts, 30% at low speed, 18 kilowatts.
According to the system standards, air conditioners are generally 3 to 5 kilowatts, with an average of 4 kilowatts, 4 kilowatts and 18 kilowatts, which is equivalent to 22% of the engine power used for air conditioning and refrigeration. This is not a small amount.
The power of the small-displacement car itself is just 18 kilowatts. When it is slow, this is not a big deal. When the air conditioner is turned on again, the power of the car will be affected.
Insufficient power may affect driving experience
Because it has a design on the other side, you always want it to turn up. This part of the energy is used up. Using only the rest of your own energy, there is no way to motivate it.
Sometimes even when the switch is not smooth, the power distribution is still uneven. When the two departments are fighting for resources together, you will open up again.
Sometimes it's quick, sometimes it's slow, acceleration and climbing air conditioning are more obvious, and you feel powerless.
Large-displacement cars have a small impact, occupying 14% of power
The larger the displacement is, the smaller the impact is. 1.6 to 2.5 or higher displacement engine, because of its large power, the high kilowatts of energy provided, the proportion of the air conditioner itself is small.
For example, with a 2.0-liter engine, the 155-horsepower is generally 114 kW. We calculate it at a low speed of 30%, 34 kW, and 34 kW. You are maximizing the power of 5 kW.
Then this air conditioner also only accounts for 14% of the engine's power. The air conditioning effect will not be particularly large, and at least it will not be felt by oneself.
Hybrid air-conditioned air conditioners do not affect power
Some sensitive friends, he just feels it. When I open 3.0, I feel I'm not happy with the air conditioning, but I'm hot again. What kind of car is it suitable for?
Buy a hybrid car, what kind of Qin, Prius hybrid this, it is two air-conditioning compressors, one is the use of engine power, and the other is electricity.
The hybrid compressor is driven by the motor and does not need to be carried by the engine. When the air conditioner is in use, the impact on the engine is very small.
Even if it is completely independent, it does not affect it because it is powered by electricity, not by the engine. How much power is yours, is quite cool.
Some new cars with a modified air conditioning
Well, what we just said is that there is actually a small bug, that is, we say that air conditioning is 4 kW, or 5 kW.
In fact, there are some advanced or relatively new cars. The air-conditioning power is not constant. It actually has fixed and variable rows. It is like we used to buy air conditioners in our former homes. This type of inverter air-conditioning is similar.
The output power of the fixed row air conditioner compressor is the same as what I said just now. It is always 4 kilowatts or 5 kilowatts at all times. The air conditioning system is different. It will adjust, and you don’t need to understand this system. Anyway, it will change. of.
Variable air conditioning has a relatively small impact on power
The easiest way is to look at the air conditioning button inside the car. There is no AUTO, there is no automatic, there is an automatic press, there is an A/C cooling press and it goes into operation.
This time you set a 23 degrees, for example, if it's 35 degrees outside, it blows cold. If it's 15 degrees outside, it blows hot air. It's very automatic.
After reaching the temperature, it will use the lowest power output to maintain this temperature, it is not 4 kW or 5 kW, it may be only 1 kW, it is very small and small.
If you buy a new type of small-displacement car like this, and you still use a modified air conditioner, the impact of power will be relatively small.
How to reduce the impact of air conditioning on power?
My car has been bought. You told me that I would not buy a car for the power of the air conditioner. How can I reduce the impact of air conditioning on power?
Usually develop good car habits
This we rely on the usual daily life, adjust the habits of the car, for example, just start, the power is still relatively low to open.
The car's power is pushed up. For example, I manually blocked the fourth gear, and when it was comfortable, I aired it again.
Or that climbing or low speed, I need power or its own speed, when the power is still not up, my air conditioning will be a little off for a while, you will not heat to death for 30 seconds, you first off.
