The biggest difference between a truck and an ordinary car is that both the weight and the displacement are much greater, especially the heavy truck. Naturally, it needs a smooth shift to ensure that there is a suitable gear to ensure that there is enough torque to drive the vehicle forward. Therefore, the most common stalls for heavy trucks are in the 8-12 range. Today we will take a look. What are the functions of these dozens of stalls besides strengthening the power?
Since we have said that we can increase our motivation, we can see that these dozen stalls are strengthened. Generally, the heavy trucks are mostly diesel vehicles, and the diesel engine operating speed range is much smaller than that of the gasoline engine, which is about 1000 to 2500 rpm. In order to achieve maximum torque and efficiency in the range of 0 to 120 km/h, more gears are needed than gasoline engines.
Generally, there are many items of heavy Karaoke, and the more gears, the more effective the engine power application is! In addition, when encountering different road conditions, it is also possible to use more gears to adapt to achieve the best matching of traveling speed and output power.
If you do not have enough power when you are uphill or starting up, then use a low gear, so that you can turn into ten stalls. The trucks are also divided into high and low gears. When heavy trucks encounter light traffic or good road conditions, they use high gears to run at a low speed, and vice versa.
One of the characteristics of stalls is that for the sake of fuel economy, vehicles can travel at different engine speeds within the engine's economic speed range. The torque required for the start/acceleration of the heavy truck is greater, and more low speed settings can provide more economical acceleration and reduce the rotational speed of the engine caused by the shift.
For example, when the second gear hits 2,000 turns and hangs up to the third gear, the result is that if the speed drops below 1000 turns, the situation of acceleration and powerlessness will naturally occur, and such stuffy work will lead to high fuel consumption.
And if heavy trucks run on the mountain, more stalls will be more fuel-efficient. For example, on a long ramp, the power of the third gear engine is wasted, and the engine power is not enough for the fourth gear. A lot of five-speed gearboxes have this problem. Acceleration and excessive fuel consumption make the car feel uncomfortable, so trucks have to increase gears to change defects.
Moreover, the stalls can be designed to be even lower, and the high-speed design can run faster. The economic benefits of pulling the same goods are obvious. Light trucks now have a lot of gear boxes with six gears and eight gears.
For vehicles with many gears, the difference in speed ratio of each gear will be smaller, and the shift will be more smooth, and the appropriate gear can be selected according to the speed, the load, and the weight of the vehicle. Moreover, the diesel engine operates at low speed and has many gears, which is also convenient for control. The more gears, the more speed-change gears, the more frequently the gears are shifted, the smaller the sense of frustration, and the smoother the gearbox transmission.
The dozens of gear settings for heavy trucks have certain positive effects in improving the dynamics of vehicles, fuel economy and smoothness in shifting. The refinement of the gears not only enables the driver to select high speed operations based on road conditions and load conditions, but also reduces truck fuel consumption and brings a smoother and safer driving experience.
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