Therefore, there are different suspension specifications in the society, but the millstones are uniform in the world (diameter 50cm and 90cm), so the nose and suspension are not produced by the same manufacturer, and the new car combination is not a straight line (some new cars are a little inclined), mainly because of suspension. But even if it is straight, it will tilt after a period of use.
Let's talk about the technical method of semi-trailer reversing first! Because the front of the car is fixed, the length and width of the suspension are different! Reversing controls the front of the car, so that the front of the car can be hoisted away. Any suspension can be installed in the front of the car, but the distance between single-drive and double-drive grinding discs is slightly different.
The principle is the same! The shorter the hook, the more obvious the promotion effect; The longer the knot is, the less obvious the promotion effect is; The shorter the knot, the easier it is to control; The longer the knot, the more advantages and disadvantages; The shorter the knot, the easier it is to turn; But the reverse reaction is super fast and difficult to adapt.
The safety factor of long hook turning is much higher than that of short hook, so it is not easy to turn when driving, but because the driving wheel is far from the rear wheel, it takes a long time for the steering wheel to react to the rear wheel, so it is very easy to reverse! I have time to think about the dynamics of the suspension, which makes it easier to fall down.
Regardless of the length, width and width of the semi-trailer, the front of the car can only swing between 20 and 30 degrees under heavy load. This is the principle of triangular support, and it is also the easiest to control the trailer to an ideal state! Or from the point of view of the safety of heavy vehicles (tire puncture, wheel pushing, and head collision are likely to happen). Of course, it takes a 90-degree hard wheel push to stop at 7 words (the rear wheel is basically empty).
Semi-trailer reversing skills: less collision and more turning, more turning than collision, less moving real quantity, more imaginary quantity, turning back and forth after collision, correcting back and forth, preventing pushing wheels and puncture tires, at least turning wheels, accurately turning wheels, reserving space and using enough space. Turning wheels is to better control a semi-trailer independently.
Extended data:
Precautions for reversing:
Slow down.
Whether it is a novice reversing or an experienced reversing, this must be paid attention to. Not only can you not step on the accelerator to reverse the car, but you should also step on the brakes halfway, especially when a novice is reversing, he should drive at a slower speed than the idle speed.
Only in this way can we have more time to observe the surrounding environment. Even if you don't think of going to the game, people around you at least have time to stay away so that they won't be hit before they react. Deceleration when reversing is always the most important principle for beginners to pay attention to when driving.
observe carefully
No matter how good the reversing technology is, you should also observe the mirror more when reversing. Even if there is a reversing radar or reversing image, you can't count on these devices, because generally speaking, these devices can only look at the right rear of the car and can't see the sides. So more observation is king.
This is especially true for beginners when reversing. If they feel too close to observe clearly in the car, they would rather stop and observe before backing up. After all, beginners don't feel very good about reversing, so don't have any luck.
In addition, novices should observe the mirror more when reversing, make sure there are no obstacles around the car, and don't step on the accelerator during the whole process of reversing. In other words, in the whole process of reversing, novices always step on the brakes and slowly reverse. Under normal circumstances, the brakes should not be completely released to avoid stepping on the wrong accelerator.
Precautions for reversing on dangerous roads
We should try our best to avoid reversing on dangerous roads. If you need to reverse on a dangerous road, you must attach great importance to it and take the following protective measures: when reversing, carefully investigate the terrain of the reversing location and correctly choose the advance and retreat route; On the edge of the danger zone.
Put some obstacles, such as big stones and wood, to ensure that the wheels are blocked by these things, and stop the vehicle when the brakes are not enough; When reversing, pay attention to point the front of the car to a dangerous position and the rear of the car to a safe position for easy observation; If conditions permit, the terrain of the reversing location should be trimmed to eliminate all kinds of hidden dangers as much as possible. ?
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