Everyone knows that I bought itcarIt’s not just the meeting, but also to protect it, socar maintenanceThis is what car owners have to do, and there are many maintenance. One editor thinks it is necessary to talk to the majority of car owners. That is the four-wheel alignment we are going to talk about today. Many people may be unfamiliar with this term. Let’s start simple. Introduce what is called four-wheel alignment. Four-wheel alignment is based on the four-wheel parameters of the vehicle. It is adjusted to ensure good driving performance and certain reliability of the vehicle. In layman's terms, it means adjusting the four wheels to keep the vehicle in balance. If the car is easy to go off the road on the road, the consequences are very serious!
Four-wheel alignment includes front wheel alignment and rear wheel alignment: front wheel alignment includes kingpin caster angle, kingpin inclination angle, front wheel camber angle and front wheel toe; rear wheel alignment includes wheel camber angle and rear wheels one by one Toe.
The important angle and influence of four-wheel alignment
1.Camber angle: When the tire is inclined inward or outward from the center line of the tread, it is the camber angle
Positive cambertireTire Tilt Out
Positive camber angle is too large, outer shoulder wear
Negative cambertireTire Tilt inward
The negative camber is too large and the inner shoulder is worn.
2. Toe angle: the difference between the front and rear lateral distance of the tire, divided into toe and span.
Toe: The lateral distance of the front part of the tire is smaller than the lateral distance of the rear end of the tire
Forward span: The lateral distance of the front part of the tire is greater than the lateral distance of the rear end of the tire
3: Backward tilt angle: the angle at which the steering shaft tilts forward or backward based on the lead vertical line.
The top of the positive rear angle suspension is tilted backward and the top of the negative rear angle suspension is tilted forward. '
If the caster angle is too large, the tire will jump when the road is uneven, and the tread is prone to abnormal wear due to the inability to effectively absorb the shock.
The role of four-wheel alignment
In principle, the direction of tire rotation should be consistent with the direction of the vehicle, and the load direction should be perpendicular to the ground. However, in order to make the performance of the vehicle more excellent, various angles have been added, but when these angles are too large, the performance of the vehicle Not only there is no extra points, but there will even be a serious deduction effect, so there is the emergence of four-wheel alignment.
Adverse effects of four-wheel alignment
1. The impact of safety; instability during high-speed driving and deviation of the center of gravity during high-speed turning.
2. Accelerated wear of parts; vibration and shaking accelerate the wear of vehicle parts, dragging phenomenon will cause rapid wear of tires.
3. Poor handling; heavy steering or floating
4. Driver fatigue; uncomfortable forms of sniping sideslip.
5. Fuel consumption increases; unsmooth driving results in increased energy loss.
When do you need four-wheel alignment?
Generally speaking, when the following situations occur in a vehicle, it means that the four-wheel alignment of the vehicle has changed and needs to be corrected again.
1. When the vehicle goes straight,steering wheelNot centered.
2. When you release the steering wheel with both hands, the vehicle will slide to the left or right.
3. Abnormal tire wear and serious tire eating.
4. The body will be unstable
5. The steering wheel will shake left and right
6. Floating again while driving
7. There are noises or strange noises in the vehicle
Maybe after reading this, everyone still feels that it is not too clear, and you don’t need to know too much. Just remember that if the above situations occur, you should do four-wheel alignment.
Summary: Through the popularization of automobile knowledge in the past few days, I hope that it will be very helpful to car owners. Legs and feet are our walking tool, and cars are our means of transportation. If the legs and feet are not well maintained, they will hurt, and if the car is not well taken care of, it will also strike. So if we want a car to serve us for a longer time, we must maintain it in many ways. In the future, we will popularize car maintenance and maintenance from many aspects, and car owners are welcome to pay attention!
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