The principle of four-wheel drive car who can explain the next?
Four-wheel drive, also known as all-wheel drive, as the name suggests is the wheels before and after the car has a dynamic drive, according to the state of the road running the engine output torque will be distributed in all the wheels before and after the car to improve the driving ability. Four-wheel drive notation with 4 × 4 or 4WD. Note that these symbols of the car is a four-wheel drive function.
The four-wheel drive system is divided into two categories: active and passive, but the purpose is nothing more than one, that is, the power from the idling slippery wheel removed, and then re-assigned to the larger wheels, like the wheels Slippery, we use stone wood and other things stuffed in the slippery wheels below the same reason is very simple. When the two wheels (front wheel or rear wheel) drive the car when the tire idling slip, the remedial action is only one, is to reduce the engine driving force, and the driver only through the oil to achieve this purpose, or driving computer control throttle Of the small. And the four-wheel drive car is different, you can let their own preferences to fight, the power will be automatically distributed through the electronic system to the various wheels, can be more effective to prevent the situation of the wheel slip.
Just as the human body is supported by the skeleton, the car must have a skeleton, which is the frame. The role of the frame is to bear the load, including the weight of the car's own parts and the impact of driving, twisting, inertia and so on. The existing frame types are beam type, bearing type, steel pipe and special materials, one type and so on.
