In the process of getting used to cars, I think beginner owners have heard about the relationship between car speed and speed. However, few people fully understand the specific relationship between the two. In fact, although there is a certain correlation between the speed and speed of the car, the method of judging it is very complicated. In most cases, the relationship between the two is affected by many factors. Torque, gear shifting, transmission form, etc. will change the ratio of speed to speed. So, after the speed reaches 120km/h, how much speed display is normal? Like now, when many old drivers buy cars, they like to buy cars with low speeds, right? To know the answers to these two questions, we must clarify the connection between the multi-faceted influence between the speed of the car and the speed of the car, and after comprehensive consideration, we can really get the correct answer.
Usually, the high speed of the car to 120km/h often means that the speed of the car at that time is in a state of high-speed cruising. In this case, the speed of the car should also stay in the maximum range. Survey data show that in this high-speed cruising state, the speed of the car is between 1200-4000 rpm, often in the normal range. So, in this range, is it a good car to revs below that value? Remember this speed, lower than that is a good car! When judging the relationship between car speed and speed, the first thing to know is that at a moving speed of 120km/h, the car needs 30KW of electricity to support the operation of the engine. Therefore, most less powerful cars need to maintain extremely high speeds to ensure an output of 30kw. Powerful cars are very easy and abundant at this point.
The second is to observe the effect of torque. Be aware that the influence of low torque on engine speed is absolutely close. In general, low torque and speed are inversely proportional. That is to say, in the case of low torque in the car, when the car accelerates to 120km/h, the speed display is relatively high. Conversely, low-torque engines will have lower speeds at 120km/h. It is worth mentioning that different types of engines also have a certain impact on the ratio of car speed and speed. In order to understand the wider maximum torque speed platform, it is generally possible to give the engine a wider peak torque speed space. In short, the larger the torque speed platform, the stronger the power of the car, and after the car is accelerated, the lower the speed of the car. Therefore, in fact, the wider the platform of the maximum torque speed, the stronger the power, and the lower the speed required for high-speed driving.
Finally, in the case of the same power and the same torque, the transmission ratio range also has a certain impact on the speed of the car in the high-speed driving state. The relationship between the two is also that the wider the gear ratio range of the transmission, the lower the speed in the high-speed driving state. In the many models currently on the market, such as the 9AT, 8AT, or GM 9AT, which use multi-speed gear stages, the high-speed movement state of 120 km/h can be ensured even if the speed is below 2000 due to the wider range of teeth. The most typical turbocharged engines and naturally aspirated engines on the market are now available for comparison. The maximum torque speed platform of the turbocharged engine is widened, and the actual power is also strengthened. At a speed of 120 km/h, the speed shown by the turbocharged engine is of course also lower.
So, when a car is driving at a speed of 120km/h, how much should the speed be expressed to be a good car? Observations of many different types of vehicles on the market show that models that can maintain a speed below 2000 when reaching a speed of 120km/h are often considered luxury cars. At present, most models of General Motors, BMW, Audi and other automobile companies can maintain a speed of about 1700. Therefore, these models can certainly be regarded as luxury cars.
On the contrary, if you look closely, small displacement naturally aspirated engine cars and some vans want to move at a speed of 120km/h, and the speed often appears in the range of 3000-3500. It cannot be concluded that these vehicles are not good, but at least from the perspective of most models with lower speeds at high speeds, they are indeed models with strong power and high fuel consumption, and these models are of course recognized by the market as good cars. When selling, it is often more competitive. In fact, when choosing a car, buying a car according to this standard, although it is one-sided, is indeed a good idea. Although there are various factors between the two, as long as other factors are well understood, many people can choose a satisfactory vehicle. After all, in most cases, performance metrics are the main direction for more owners to consider.