Name: How does the Steering Wheel automatically returns to its center?
Uploaded: 2020-10-12T18:39:12.000Z
Duration: 4 min 4 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

Modal verbs of deduction & speculation

Participle clauses with adverbial meaning

it will automatically return to the central position.

is not achieved by any complicated mechanism

behind how providing an angle to the front wheels

It is clear that the rotation of the steering wheel

is transferred to the rack and pinion mechanism

that the wheels are turning along a particular axis.

you can see that the steering axis is perfectly vertical.

However, this is not normally the case in practice.

In practice, the steering axis will be slightly inclined

You will get a clearer picture of this angle

Let's watch how this steering mechanism works.

At first you might not notice much difference

the concepts of patch area and pivot point,

Let's call this meeting point the pivot point.

the patch area is in line with the pivot point.

the patch area is way behind the pivot point.

To understand the effect of this trailing patch area,

Assume that your car is making a perfect circular turn

In a level plane turn, this centripetal force should come

from the frictional forces at the wheel patch area

and this fact is clear from this snapshot.

what this frictional force does to the front wheels.

is behind the steering axle meeting point or pivot point.

and the wheels will automatically realign to the center.

Let's watch it from the top view also to get a better idea.

since the centripetal force passes through the pivot point.

In short, just by giving a positive caster angle

engineers were able to attain the restoring torque.

We salute the brilliant minds that visualized

such an ingenious idea and avoided the need

The caster angle is not adjustable on modern cars

but if during the wheel alignment operation

due to wear and tear of the connected parts,

We hope you will support our educational services

Subtitles ListPlay Video

How does the Steering Wheel automatically returns to its center?

assume

obvious

critical

slightly