Does the car's steering wheel automatically return to center when it turns? Why doesn't the steering wheel automatically return to center when it turns?

The car also turns with the steering wheel. If you observe carefully, you will find that the steering wheel will automatically return to the center after the car turns. This is actually a normal phenomenon. So why doesn't the steering wheel automatically return to the center after turning?

Does the car's steering wheel automatically return to center when turning?

It will automatically return to the correct position. This is because there are three important influencing parameters in the four-wheel alignment design of the car, which are kingpin inclination, kingpin castor and front wheel toe.

The kingpin can be understood as a virtual axis on the front wheel of the car, perpendicular to the ground and along the diameter of the front wheel. However, in reality, this axis is not vertical, but tilted inward and backward along the direction of the body space. The angle formed by the kingpin keeps the vehicle running in a straight line and has the ability to automatically return to the center after turning.

When returning to the center, one condition is met: the steering resistance is greater than the straight-line resistance. The steering resistance will naturally avoid the high resistance and automatically return to the correct direction without the action of external force.

Why doesn't the steering wheel automatically return to normal when turning?

1. The tires on the left and right sides are not evenly inflated. Inconsistent tire inflation pressure is one of the main reasons for weak rebound force. A tire pressure gauge must be used to determine this fault.

2. The wear of the left and right wheels is uneven, the difference is large, and the inflation of the left and right wheels is uneven. If the wear of the left and right wheels is completely different, the steering wheel will be pulled to one side, which can usually be solved by tire replacement.

3. Long-term lack of maintenance causes the steering ball head to be inflexible or too tight.

4. The toe-in of the front wheels is incorrect. This can be fixed by performing a four-wheel alignment.

The driver should take appropriate measures according to the current vehicle speed and predicted turning radius, such as releasing the accelerator pedal before entering a curve to allow the car to slow down slowly and steadily; if the visibility is poor and the turning radius is relatively small, the vehicle should be driven to the outer side of the lane to expand the turning radius as much as possible; if the visibility is good, the "curve cutting" operation can be performed to reduce the amount of steering wheel rotation to reduce centrifugal force.

How to make a car turn steadily when going uphill or downhill

Slope turn.

At this time, the car encounters greater resistance and travels at a slower speed, so the centrifugal force is not great. In case of an emergency, the accelerator pedal should be released quickly, and the speed can generally be controlled. However, since the speed of the car going uphill is lower, especially on steep and long slopes, the avoidance performance is not very good, so it is necessary to drive on the right to avoid being unable to avoid in time.

Downhill turn.

At this time, the center of gravity of the car moves forward, and the forward inertia force will also increase. Relatively speaking, the centrifugal force will be relatively large, so you must be prepared to slow down in advance. When the turning radius is small, the speed should be controlled by the brake to keep the speed within the speed range required by the curve. After entering the curve, gently release the brake pedal and slide on the brake.