What is a pusher ? What does push head mean?

Pushing the head is a kind of loss of control when the car is turning, and the scientific name of "pushing the head" is called "understeer".

This phenomenon often occurs in front-wheel drive vehicles at the extreme of corners. This is because the center of the engine and drive shaft of the front-wheel drive car is in the front of the vehicle, and the driving wheels are also in the two front wheels, so when cornering, the front center of gravity moves forward due to inertia, and it is easy to break through the ground adhesion of the front wheels, resulting in understeer, which is the cause of "understeer".

When the car turns too fast, the front of the car will not turn according to the driver's intention and continue to push forward, at this time, just release the accelerator, tap the brake will get the car back on the right track.

"Push head" is a kind of loss of control performance when the car is steering, and the scientific name of "push head du" is called "understeer", which often occurs when front-wheel drive cars are at the limit of corners. From the aspect of vehicle handling and safety, the center of the engine and drive shaft of the front-wheel drive car is in the front of the vehicle, and the driving wheels are also in the two front wheels, so when cornering, the center of gravity of the front part moves forward due to inertia, and it is easy to break through the ground adhesion of the front wheels, resulting in understeer, which is the reason for the occurrence of "understeer". And when there is a slight understeer, there is no need to panic, just retract the throttle and control the car again.

First, due to the reason of design layout, the center of the engine and the drive shaft of the front-wheel drive car are in the front of the vehicle, the counterweight of the front of the car is larger, and the driving wheel is also in the two front wheels, so when cornering, the front center of gravity goes forward due to inertia, and the inertia breaks through the ground adhesion of the front wheel, and the phenomenon of understeer occurs.

Causes of the pusher situation:

1. The speed of the turning car is too fast. 2. Turning too sharply. 3. The front brake causes the tire to lock.

Second, how to overcome the phenomenon of pushing heads:

Of course, the original unmodified car can only make up for the shortcomings with technology, such as the method of shifting the center of gravity to make the rear instantaneous urban grip to improve the pusher, and the most important thing is to press the brakes to the appropriate speed in advance before entering the corner. When the vehicle pushes its head, you just need to slow down the speed! Don't try to save with the steering wheel, because at this point the vehicle is out of control and it is basically useless to play the direction.

Third, for vehicles that have been modified with suspension, the head pushing phenomenon can be alleviated by adjusting the suspension. The harder the suspension, the worse the grip, and the softer the suspension, the stronger the grip. Therefore, the adjustment of the front suspension is soft and the rear suspension is hard, which can correct the understeer and form oversteer.

The front suspension is hard and the rear suspension is soft, which can correct oversteer and form understeer.

In addition, adjusting the tire pressure can also affect the effect of steering, too low and strong grip, and high tire pressure is the opposite. So if you feel understeered, you can turn the front tire pressure down and the rear tire pressure high. Oversteer, the front tire pressure is turned up and the rear tire pressure is lower.

Insufficient head-pushing and tail flicking) are both problems that luxury cars or many performance cars are trying to avoid. These problems are not unique to high-end cars, and should be avoided as much as possible regardless of the level of model. Pushing the head and flicking are actually related to safety, because in the initial development, engineers avoided these two problems as much as possible in terms of chassis tuning, power delivery, tire type, weight distribution, etc.

To be clear, don't talk about extreme driving, drag racing, drifting, racing and other sports are not on the agenda of today's discussion.

Push the head ** to the insufficiency).

The phenomenon of pushing the head refers to the fact that when you are about to turn, the front wheels are not able to turn in the direction you want to go because of the lack of grip on the front wheels, which is more common in front-wheel drive models. For example, when you want to make a quick 90-degree turn, the front of the car may just turn 50 degrees.

Tail flick ** to excessive).

Tail flick is the rear of the car, and when cornering, the rear wheels have a lack of grip, causing the vehicle to turn at more angles than you would like, usually on rear-wheel drive models. For example, you would have wanted to make a 60-degree turn, but the car made a 90-degree turn because the rear wheels were skidding.

What are the advantages and disadvantages of front-wheel drive and rear-wheel drive of automobiles?

In the development process of automobiles, the car was actually rear-wheel drive at the beginning. At that time, there was still a lot of technical difficulty in realizing the precursor. For example, the engine, transmission system, steering system, and cushioning system are all integrated in the front, which is a relatively complex technology.

At that time, the mechanical technology was not so advanced that it was not possible to make those systems so elaborate that they could be integrated in front of the car. However, most automobile manufacturers have an outlook on the technical advantages and prospects of the development of front-wheel drive vehicles, because front-wheel drive vehicles have incomparable advantages over rear-wheel drive vehicles. For example, the front-wheel drive can better ensure the transmission efficiency, and there is no need to manufacture other transmission systems, reducing vehicle weight and space.

Keep the interior space from being squeezed. and reduce manufacturing costs. And the suspension in the back has been improved, and the trunk and everything are empty.

Compared with the rear-wheel drive, the traction of the front-wheel drive is more stable when the car is driven by the front-wheel drive. In this case, the development and production of front-wheel drive vehicles has formed a trend. Later, after the technology was conquered, most of the cars were developed to the front wheel.

Therefore, the main advantages of front-wheel drive vehicles are manufacturing cost, space, and stable driving. The disadvantage of front-wheel drive vehicles is that the weight of the car is concentrated in the head, and the weight of the car is unevenly distributed, and the front is heavy and the rear is light. And the front wheels have to withstand the two-way function of steering and traction.

In this case, if you are turning, the front wheels must have traction friction on the one hand, and centrifugal forces in the tangential direction on the other. When the speed is too fast, it is easy to understeer.

The main advantage of rear-wheel drive is that the body weight is average, which tends to have a 1:1 weight ratio between the front and rear (not absolute, but approximate), and the weight of the whole car is uniform. Rear-wheel drive and front-wheel steering do their job.

The handling of the car will be much better. However, it is prone to tail flicking. Imagine the difference between pushing a shopping cart and pulling a shopping cart in a supermarket.

What is a car pusher and how to correct it if it happens!

To put it simply, the push head is due to a variety of reasons such as entering the bend too fast or the front wheel grip is not enough, resulting in the front wheel can not provide enough steering force, when cornering, the vehicle can not turn according to the predetermined track, the phenomenon of sliding out of the bend is the phenomenon of pushing the head generally appears in the front wheel drive car or the car with the front is too heavy, the push head is understeer, not understeer, to push the head, on the contrary, the rear drive car is the tail flick.

The so-called push head is understeer, that is, refueling when turning, and the steering diameter of the front wheel has a tendency to become larger and larger. This is because of the weight distribution of the front-wheel drive car, the front will be heavier, and the inertia force that needs to be overcome when steering is also relatively large, and it is easier to break through the grip limit of the tires. However, it should be noted that if you force more direction when pushing your head again, trying to pull the front of the car to the route you want, it may turn into a tail flick.

The front-wheel drive car tail flick is not fun, it is very non-linear, the requirements for control are higher, you don't know when he will come, when he will disappear, it is much more difficult to control than pulling the handbrake flick.

The main reason is that the front of the car is too heavy, plus it is the front wheel, the front wheel will lose control when it slips, and then it will slide away in the direction of the ratio.

The meaning is like carrying a slippery grandson:

"Push" is a way to describe a loss of control when a car is steering, and the scientific name for "pushing" is called "understeer", which often occurs in front-wheel drive cars at the limit of corners.

From the aspect of vehicle handling and safety, the center of the engine and drive shaft of the front-wheel drive car is in the front of the vehicle, and the driving wheels are also in the two front wheels, so when cornering, the center of gravity of the front part moves forward due to inertia, and it is easy to break through the ground adhesion of the front wheels, resulting in understeer, which is the reason for the occurrence of "understeer".

Introduction:

Motor Vehicle Steering When a vehicle turns a chain, due to the influence of terrain, traffic conditions and driving resistance, it is usually necessary to reduce the speed of the vehicle, observe the road conditions in the direction of the turn through the rearview mirror, and turn on the turn indicator first under the premise of allowing the steering and ensuring safety.

After the steering, once the steering wheel.

Back to right, the turn indicator will automatically turn off. However, if the steering wheel is turned on first and then the turn indicator is turned on due to negligence, the function of the turn indicator will automatically turn off will be invalid, and the indicator must be turned off by hand after steering.

Pushing the head is a kind of loss of control when the car is turning, and the scientific name of "pushing the head" is called "understeer".

This phenomenon often occurs in front-wheel drive vehicles at the extreme of corners. This is because the center of the engine and drive shaft of the front-wheel drive car is in the front of the vehicle, and the driving wheels are also in the two front wheels, so when cornering, the front center of gravity moves forward due to inertia, and it is easy to break through the ground adhesion of the front wheels, resulting in understeer, which is the cause of "understeer".

When the speed is too fast to turn when the car is too fast, the front of the car will not turn according to the driver's intention and continue to push forward, at this time, just release the accelerator, tap the brake will wheel the car back on the right track.

What is a car pusher and how to correct it if it happens!

Dialect. Dodge; Pretext. "Two Moments of Shooting Surprise" Volume 4:

If I coax robbers to rob his house and kill him, I can hide it from others, tell false and fair things, and only push the thief to blame, who can say it is me. The second and sixth episode of "The Appearance of Officialdom": "The post is left, and tomorrow you will be sick, just don't go."