In the past, the Chinese people's understanding of cars was relatively superficial, and when buying a car, they only paid attention to the price of the car, and paid less attention to the performance and handling of the car. Now that cars are gradually popular, everyone's understanding of cars has become more, and the attention to the three major parts has been further improved. But when many people look at the performance of the car, they only consider the engine parameters and ignore the speed of the car.
Engine speed is also an important physical parameter that affects the performance of the car, and the speed is related to the number of times of work per unit time and the effective power of the engine. The greater the effective speed of the engine per unit time, the greater the output power provided to the vehicle and the stronger the power performance of the car.
But how much speed does the car reach to show that the power performance of the car is strong enough? After a long period of research, insiders found a way to detect the speed of the car engine, that is, when the car travels at a speed of 120 kilometers per hour and then looks at the speed of the engine, it can reach below the standard line, which means that this is a good car.
In general, the higher the engine speed, the more work done per unit of time, the greater the power the car gets. Usually we drive, the engine speed between 1000 and 3500 rpm is relatively normal. When idling, the speed of the car is about 1000 rpm, after starting, the speed will rise to 1500 rpm, the speed of the rpm will reach about 2000 rpm when it rises to the 2nd gear, and the speed will basically reach 3500 rpm when it is at the highest level.
This is really just a common saying, the speed of the car is also affected by the displacement and transmission efficiency of the transmission. If the transmission efficiency of the transmission is not high, even if the engine does more work per unit time, it is useless.
Naturally aspirated engines and turbocharged engines have the same displacement, and their engine speeds are also different. For cars equipped with a 1.5-liter naturally aspirated engine, when the speed reaches 120 kilometers per hour, the engine speed is basically between 3000 and 3500 rpm. If your car is also a 1.5-displacement naturally aspirated engine model, and the speed is below 3500 rpm, the car is in good condition.
In the case of a turbocharged engine, maintaining a speed of between 2200 and 2600 rpm at a speed of 120 km/h is ideal. Now the major car companies have become stronger in their car-making capabilities, and the engine performance has also improved, and most of the 1.5T turbo engines can reach this speed, and some can even stay below 2400 rpm.
In the process of daily use of the car, how much is the engine speed maintained better for the car?
1. When the cold start, the engine speed is maintained below 800 rpm is relatively good, if the cold start speed is above 1200 rpm, the owner should pay attention to it, which means that the working conditions of the car are not ideal, and it may be necessary to maintain it.
2. During the driving process of the car, try to maintain the speed of more than 2000 revolutions. Too low a speed will make the engine underpowered, giving people a feeling of a small horse-drawn cart.
3. If you want the car to reach the economic speed, let the speed of the vehicle be maintained between 2200 rpm and 3500 rpm, in this state, the engine conditions are the best, will not feel the lack of power, will not cause too much load to the engine, resulting in engine damage.
summary:
The speed is a concrete embodiment of the engine condition, through the level of engine speed per unit time, the owner can also feel the condition of the vehicle. If the speed of the car suddenly becomes higher, it means that the engine may have a failure, and it is necessary to repair it in time, do not ignore it, otherwise the cost of using the car will become higher.
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