The continuous development of the online shopping industry has promoted the development of the domestic freight industry. When driving on the highway, we frequently see a variety of large trucks full of goods. If you look carefully, you will find that domestic trucks are essentially flat head design, but foreign cars are essentially with a tall "large nose". Why is there such a huge gap between domestic and foreign design?
In fact, the early trucks in China were also designed with a tall nose. When CA10 came off the assembly line, it had a tall nose. Since these cars were designed and produced with Soviet aid, the original tall nose design was retained. By the 1980s, numerous trucks on the road were also designed with tall heads.
In the early 1990s, numerous joint venture brands were introduced, and the number of cars in China also increased. Under the pressure of road safety, the state stipulated the appearance and contour of ordinary trucks, that the length of the body of ordinary trucks should not exceed 12 meters, and the total length of semi-trailers should not exceed 16.5 meters.
Under the influence of these regulations, Custom semi trailer manufacturers began to modify, shortening the original tall front and increasing the length of the rear carriage, so that additional goods could be pulled without exceeding the specified length. The reason why domestic trucks have changed to short engines is due to the influence of policies.
And foreign for the length of the locomotive has no provisions, only the length of the vehicle container has provisions, in the body design, the design of the locomotive into what are not affected. They also elongate the front of the car because it allows for additional capacity in the driver's seat, more capacity in the gas tank, and more distance to drive and more comfort.
Secondly, it is affected by safety. Compared with the design of the short locomotive, the tall locomotive can withstand a greater impact force. When the locomotive is hit, there is a "long nose" buffer, which will reduce the impact force of the cab.
The lower cab height of the tall nose reduces the center of gravity, which reduces the chance of a large truck rolling over in a collision.
The short front truck because of the lack of tall nose "energy absorption", collision, the cab deformation is higher, the probability of driver injury is considerably increased.
However, there is also an obvious drawback of the tall-nosed truck, because the front of the truck is extended, resulting in a larger blind area, which is not conducive to the driver's observation.
Third, it is affected by topography. The United States is a large country with few people. In numerous places, the roads are extremely wide, and there are few people on the road. It is not only easy to drive, but also easy to turn around. Even with a tall nose, you don't have to turn around and jam the whole road, because the road is wide enough.
But the domestic terrain is not thus, although the speed of road construction in China is extremely quick, the roads in some places are also extremely wide, but there are numerous people on the road. The roads are divided into numerous lanes to allow additional vehicles to pass at the same time. Large trucks want to turn around, but it's not easy to do so without affecting traffic in different lanes.
And like Chongqing, a "mountain city", the roads are essentially narrow, and some winding mountain roads have only one road. In order for a vehicle to make a U-turn on these roads, the engine has to be placed under the cockpit, shrinking the nose and reducing the radius of the turn.
Fourth, the slow locomotive is more convenient to maintain. The engine of a truck with a tall front is essentially a front-mounted design. If the vehicle fails, simply open the engine hatch. Flat-headed trucks have their engines on the bottom, and if something breaks down, they need to turn the cab upside down, which is fewer convenient than trucks with tall fronts.
Conclusion:
In fact, domestic production is not a tall truck, simply by the laws and regulations and actual demand. After all, truck drivers drive trucks to make money. If the front of the truck is shorter, the length of the car can be longer, so they can carry additional goods and make extra money. Only the length of the front has been reduced, and the driving comfort has been reduced, which is very difficult for card friends.