This bump is actually under the car. of the axis It is formed due to the space allotted for it to pass. We call this hill “shaft tunnel”.

First of all, let’s give a brief information about this system. shaft; in rear wheel drive cars a drivetrain that transfers power from the engine to the rear wheels. Since such a transmission is not required on front-wheel drive vehicles, there is no axle running from the center to the rear. If front-wheel drive vehicles don’t have such a drivetrain, did you ever say why my car also has this bump? Yes, most front wheel drive vehicles have this bump as well. Let’s take a closer look at what a shaft tunnel is.

Why do most front wheel drive cars have an axle tunnel if the axle is not needed?

Of course, not all front-wheel drive cars have a shaft tunnel, but most front-wheel drive cars do. because This tunnel offers great convenience to the manufacturers even though the shaft is not used.

For front-wheel drive cars, this tunnel varies from manufacturer to manufacturer, but in general terms. sanitary room used as. In addition to the exhaust pipe of the vehicle, the pipe of systems such as electricity, fuel and brakes also runs through this tunnel. In some brand vehicles only the exhaust line can be passed, while in others we see that they are passed all over.

The shaft tunnel has an even more important purpose than the sanitary cavity: robustness.

The underside of a car must be solid. As if the bottom section isn’t enough to pull all the weight, the pits, fast starts and many other things we can’t count add weight to the bottom section. That’s it for most automakers to further strengthen the soil they want to hide the shaft tunnel that runs through the middle of the vehicle as if it were half a pipeline. This ramp provides significant durability as if there were a column in the center of the vehicle.

Let us explain the robustness that the shaft tunnel gives to the vehicle with an example.

You have a Think of it like a pack of paper. It is very easy to bend when the prop is flat. However, if we bend this prop from the edges and make it into a half cylinder, it will become much more difficult to bend. It is precisely with this principle that the shaft tunnel gives power to the vehicle.

Aren’t cars without shaft tunnels solid?

Of course, that shouldn’t mean anything like that. Some manufacturers offer more comfort in the back seat. It adds different methods of reinforcement instead of the shaft tunnel. Particularly on taller vehicles, a shaft tunnel through the vehicle may not be necessary as the lower sections are easier to conceal.