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Why do heavy trucks have more than a dozen gears?

Aug 21, 2023

Heavy truck is an indispensable tool in modern transportation. It is a highly specialized truck, which is usually used to transport heavy, large and bulky goods. These heavy objects may be steel, machinery and equipment, construction materials, agricultural plants or construction waste, etc. Heavy trucks have a large carrying capacity, which can carry tens of tons of goods, so they can meet the needs of modern society for mass cargo transportation.
Heavy truck is an important tool for transporting goods. It is designed with more than ten gears to maximize the efficiency and performance of the vehicle. Here are several reasons:
1. power
Heavy trucks usually have large tonnage and often work under full load, and they need very large power. The more gears, the more effective the starting motor power can be. The torque can be doubled in the low gear, and the speed can be increased in the high gear.
When the actual load changes greatly or the road conditions fluctuate more, more gears can better adapt to the changes and achieve the best speed and power matching. Each gear can be well matched with its own power performance, and there will be no big power drop between each other.
2. fuel economy
Another purpose of multi gear of heavy truck is to obtain good fuel economy, so that the engine can be in the economic speed range at different vehicle speeds. It is helpful for the driver to select a gear suitable for the current vehicle weight and road conditions, the fuel consumption will be reduced to a relatively low level, and the economic performance will be greatly guaranteed.
3. ride comfort
Manual vehicles will have obvious frustration when they quickly switch gears. The heavy truck is set to multiple gears. The difference of gear ratio of each gear is small, and the shift will be smoother. You can also select the appropriate gear according to the vehicle speed, load and vehicle weight.
The diesel engine has low working speed and many gears, which is also easy to control. The more the gears are, the more the transmission gears are. The more frequently the gears are switched, the less the frustration is, and the smoother the transmission of the transmission is. In the actual driving process, the driver can switch gears smoothly.

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In general, a dozen gears of heavy trucks have a very positive effect on improving the vehicle's power, fuel economy and gear shifting smoothness. It can enable drivers to operate more efficiently, reduce fuel consumption and bring a more stable and safe driving experience.

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