All-wheel drive vehicles are those that have the four wheel drive. Normally, all-wheel drive can be seen in off-road vehicles. However, we can also find passenger cars with this type of traction.
There are two types of all-wheel drive in these types of vehicles. First up is permanent all-wheel drive, also known as AWD, and second up is connectable all-wheel drive (4WD).
The difference is that, in many cases, vehicles with connectable all-wheel drive They do not usually have a center differential., so all-wheel drive can only be used on rough terrain. As it does not have a central differential, it is a big problem when taking a curve in areas with ground adherence, such as asphalt.
Vehicles with connectable all-wheel drive, 4WD, it is only recommended to connect the traction in soils with very low adherence. In this way, the wheels slide on the ground without damaging any element of the vehicle.
However, vehicles with permanent all-wheel drive, AWD, have a different design, since they can be safely driven. for any type of surface. Even some models of vehicles with all-wheel drive AWD can distribute the traction to each of the axles depending on the terrain or other conditions.
Permanent all-wheel drive, AWD, distributes the force equally to all four wheels. From the gearbox the movement is transmitted to the central differential and, from here, to each of the wheels. It is a type of traction used mainly in passenger cars that circulate on asphalt.
Lastly, plug-in all-wheel drive (4WD) vehicles typically only work with two-wheel drive. To have total traction we must connect manually from a lever inside the car or also automatically that is determined by the car's own control unit.
It is the type of traction used in off-road vehicles that, in addition, They have a reducer. which makes use of superior pulling force.