What is the difference between the driving experience of a front wheel drive vehicle and a rear whee

I think the difference is that when cornering at high speeds and approaching the tire grip limit, the steering wheel of the front-wheel drive car is even more disobedient because the friction in the driving direction interacts with the lateral friction, and it is easy to push the head in the extreme situation. The steering wheel of the rear-wheel drive car will not change, but in the extreme situation, if the horsepower is too large and the rear wheel is thrown out, it is the so-called oversteer, then the steering wheel will have a force feedback to the outside, if the steering wheel is released, the pointing will automatically run to the original trajectory of the front wheel.

The front overhang of the front-wheel drive car (the distance between the center of the front wheel and the front of the car) is longer, and the distance between the wheel and the door line is longer, while the front overhang of the rear-wheel drive car is shorter, and the distance between the wheel and the door line is longer, you can clearly see that this is the limitation of the project, and all models are applicable, so you can distinguish the driving form of the car in the appearance alone, as for the driving experience, I can only say that it takes an experienced driver to drive in depth to experience the difference, In fact, the driving experience of modern cars tends to be more and more neutral, and it is difficult to judge the driving form of the car by simple driving.

Most people who go to "understeer" and "oversteer" don't know what it's like. Front-wheel drive and rear-wheel drive have a relatively easy way to distinguish between them in everyday driving. It is to take advantage of the opportunity to make a U-turn at the intersection to feel it.

If you're driving a front-wheel drive car, steer with a wider amplitude, and kick the throttle when exiting a corner, you'll immediately feel the steering wheel lighter. In fact, it is the feeling of pushing the head. When you kick the throttle out of a corner, you will immediately feel the steering wheel lighter.

In fact, it is the feeling of pushing the head. That is, understeer. Because of the large steering angle, the torque of the front wheels is obviously insufficient, and it is impossible to follow.

It's almost impossible to experience when riding. However, one thing can be mentioned slightly, most of the rear-wheel drive cars have a large bulge in the middle of the rear seat, because of the relationship between the drive shaft, so the ride comfort can not be taken care of. A considerable number of front-wheel drive vehicles have the same height as the four-wheel drive common platform, and the rear bulge is tragic.

However, there are also front-wheel drive cars with almost flat rear seats, such as the Civic and so on, and the feet of the three passengers in the back row are very comfortable.

Usually open precursor golf. The rear-wheel drive car that I drove was, Ruizhi, did not accelerate and turn sharply, did not drive in snow and rain, and did not feel the difference. Tesla, when accelerating a little harder, it will flick its tail when it hits the direction slightly.

The front drive accelerates sharply and rises up, and the rear drive accelerates and skids, which are the two situations that are most likely to be encountered in daily life. Add a rear-wheel drive one, and if the uphill angle is not good, it will also skid on a single wheel.

If the torque of the car is not bad, then it can be judged by the big foot throttle, the front-wheel drive car will have torque steering, in addition, the floor oil is slightly ejected to see whether the tire rings in front or rear. In addition, I drove the rear-wheel drive, and the front-wheel drive also drove it, and I didn't carefully distinguish the driving feeling before, but now that I think about it, there is a subtle difference, and I can't put it into words.

The vast majority of people who talk about the difference between front-wheel drive and rear-wheel drive cars such as "oversteer" and "understeer" on the Internet, if they are blindfolded into a car that does not know the brand model in advance, and drive a section to let him judge whether it is front-wheel drive or rear-wheel drive, it is absolutely impossible to tell the difference. In reality, before driving a car, you already know the type of drive of the car. In particular, some people who "deliberately" experience a rear-wheel drive car will always pay attention to the possible driving characteristics of those rear-wheel drive cars.

This psychological factor leads them to think they feel the difference.

Precursor advantages

1. Good straight-line driving performance. When driving in a straight line, the front-wheel drive car is pulling the vehicle, so the directionality is better. It's like when we go to the supermarket and pull a trolley, we pull the trolley and we follow.

And if you push a trolley, the speed is too fast, and the direction is not easy to control.

2. High power transmission efficiency. The front-wheel drive wheels are close to the engine, and the torque loss is small. Moreover, the power direction of the front-wheel drive vehicle is consistent with the rotation direction of the wheels, and the power of the front-wheel drive vehicle needs to change 90 degrees to be transmitted to the rear wheels, and the power loss is relatively large, and the front-wheel drive does not have this problem.

Disadvantages of the procure

1. The front of the car is too heavy. The front-wheel drive puts the engine, gearbox, differential, steering, etc. in front, making the vehicle heavy in front and light in the rear, and when the vehicle turns violently, the vehicle dynamics are not good, and it is easy to push the head. This is the biggest shortcoming of the precursor.

2. Rapid acceleration is easy to slip. When the vehicle accelerates or starts sharply, the front of the car will be slightly upturned, and the front-wheel drive is front-wheel drive, which can easily cause the front wheels to lose their adhesion and cause the wheels to slip.

Advantages of rear-wheel drive

1. The performance of the whole vehicle is better, which allows designers to fully display their talents. The engine of a front-mounted rear-wheel drive car can be longitudinally positioned, allowing for narrower front wheels and a lower bonnet, which reduces wind resistance and achieves good aerodynamics. Because each assembly is scattered and independent, it is more convenient for vehicle production, assembly and maintenance.

2. You can get a stronger grip when accelerating. As we all know, sometimes we can't pull things on flat ground, but if we push them, they may be able to push them, and the same is true for rear-wheel drive cars. When accelerating sharply, the front of the car is upturned to put more pressure on the rear wheels, so that the rear wheels can gain more grip and avoid skidding.

Rear-wheel drive disadvantages

1. Higher requirements for driving skills. Rear-wheel drive gives the front wheels a thrust, and when cornering, it increases the front-wheel steering force, although this can make the vehicle more agile when cornering, which is certainly a good thing if you have good driving skills. However, if you have poor driving skills, sudden acceleration in a corner may cause the rear of the vehicle to flick to the outside of the curve, or even make a U-turn and spin in place.

2. There are many parts and components, and the power transmission efficiency is low. Compared with front-wheel drive, front-wheel drive vehicles have more parts, which increases the weight of the vehicle. At the same time, because the power has to be transmitted to the rear wheels, the power loss is more.

That's why rear-wheel drive vehicles generally cost more fuel than front-wheel drive vehicles.

Added: Yes, rear-wheel drive vehicles steer more easily than front-wheel drive vehicles. Since it is front-wheel drive, the force on both front wheels is the same, and it takes a lot of force to make it change direction when changing direction.

The driving wheels of the rear-wheel drive car do not affect the change of direction of the front wheels in the rear, so the rear-wheel drive car can be maneuverable flexibly and can be used as you like without the power steering assist system. Today's front-wheel drive vehicles are generally equipped with power steering assistance systems to solve the problem of poor handling. The advantages of a front-wheel drive car in the case of the same displacement are:

The effective output kinetic energy is high, the fuel consumption is low, the power is strong, the volume is small, the interior space is large, the vehicle is lightweight, the structure is compact, the failure rate is low, and the driving speed is high. Disadvantages of front-wheel drive vehicles: (This is exactly what you want to know) Complex structure, high processing accuracy, high manufacturing cost, high maintenance process requirements, poor bearing capacity, poor handling performance and other shortcomings.

These advantages and disadvantages of the front-wheel drive car determine that it is used in small cars with high needs and large space needs. The advantages of rear-wheel drive vehicles are: good bearing capacity, simple structure, convenient maintenance, good handling performance and other advantages.

The disadvantages of rear-wheel drive vehicles are: large volume, high quality, high and slow driving speed, high fuel consumption, and high failure rate. Therefore, rear-wheel drive vehicles are only used for large and medium-sized freight and passenger vehicles with large volume and large cargo capacity.

Front wheel drive or rear wheel drive? In the minds of many people, rear-wheel drive is a representative of luxury and high performance. Some cars are not low-positioned, but they are often scoffed at because of the front drive.

Is that really the case? Is it because the technology content of the rear drive is higher, then why did the early cars use rear-wheel drive, and why did Citroen become the most advanced technology at that time when it was just developed by Citroen? As the driving mode of the vehicle, the front wheel drive and the rear drive have their own advantages and disadvantages, so what are the advantages and disadvantages of the front wheel drive and the rear wheel drive, and which models are suitable for them?

Let's start by looking at the advantages of front-wheel drive vehicles over rear-wheel drive vehicles.

The transmission efficiency of a front-wheel drive vehicle is higher than that of a rear-wheel drive vehicle. When all front-wheel drive vehicles are designed, regardless of whether the engine is transverse or longitudinal, its center of gravity is biased towards the front axle, that is, on the front side of the car, and the position of the driving wheel is very close, and the transmission distance is short. In the past, transverse engines were the most efficient, which is also the arrangement used by most front-wheel drive vehicles.

Because the output shaft of the engine is parallel to the front axle of the car, the gearbox and the drive axle are made into one and fixed next to the engine, and the power can be directly transmitted to the differential through the helical gear, and then through the gearbox, the drive axle, the deceleration and torque increase are transmitted to the front wheels of the two half-shafts and finally drive the car to rotate, obviously this distance is the shortest, and the transmission efficiency without any conversion is the highest.

Most civilian rear-wheel drive vehicles, using the front or front mid-engine rear-wheel drive arrangement, then the power from the engine through the gearbox, must pass through a long transmission shaft, through the universal joint to the rear differential, and then from the rear differential then two half shafts respectively drive two rear wheels. This excessively long transmission distance will result in a loss of power. We know that the propeller shaft is made of metal, and although it is very stiff, it still has the elasticity of twisting, but this twisting is not visible to the naked eye.

When the vehicle is accelerating rapidly, the torque of the engine is very large, and when the huge torque is transmitted to the rear axle through the propeller shaft, the propeller shaft will be twisted and deformed, which is actually a loss of energy, which is converted into heat energy and wasted. Therefore, this structure of rear-wheel drive vehicles leads to increased power losses and increased fuel consumption. In addition, for the drivetrain, the weight as a moving part will affect the responsiveness, and an overweight transmission part will cause the speed of the wheel end torque response to decrease.

The long transmission shaft of the rear-wheel drive vehicle must require the transmission shaft and universal joint to have strong toughness and rigidity to overcome the huge torque generated by high-speed rotation, so the weight of the transmission shaft and other mechanisms has to increase, and the weight is much larger than that of the front-wheel drive car. Therefore, rear-wheel drive cars will affect the responsiveness of wheel end torque, and many racing cars use expensive carbon fiber to make propeller shafts, in order to reduce the weight of the propeller shaft and improve responsiveness, which shows the importance of this component.

What exactly is the difference between a front-wheel drive car and a rear-wheel drive car, and what are the advantages and disadvantages? Long knowledge!

The main difference is in terms of appearance, space, and driving experience.

Specifically: 1. Appearance. The influence of the appearance is mainly reflected in the side visual effect of the car, the front-wheel drive models are generally long in the front group, and the front and rear models are very slender in front of the short suspension.

2. Space. In the case of the same wheelbase, because the rear-wheel drive car adopts a longitudinal engine, it usually occupies the space in the car, while the front-wheel drive car is mostly horizontally placed with the engine, and the position is relatively close, and the space in the front-wheel drive car will be larger.

3. The driving experience is different. When accelerating, due to the lag of the car's center of gravity from the front, then the rear-wheel drive car will get better, the grip handling is also more, and the accuracy of the whole car for steering will be slightly worse in the sharp turn of the front-wheel drive car is too powerful, there will be understeer, but it is relatively easy to get up after losing control, only need to close the throttle to return to the original trajectory, so it feels as if the rear-wheel drive is better than the front-wheel drive handling, in fact, this is conditional. For example, road conditions, assuming that it is more difficult for the rear drive to run out of the predicament than the front on the ice and snow road, because the adhesion of the rear drive car is not as good as that of the front drive, and the tires are more likely to slip, so the rear drive car should be extra careful when driving in rain and snow.

In a sense, the way it is driven determines how fun a car is. The so-called drive method is what pulls or pushes the car. As the name suggests, front-wheel drive vehicles are naturally front-wheel drive, and rear-wheel drive vehicles are rear-wheel drive.

Because the position of the engine has its own style characteristics, it is also divided into four forms: front-rear-wheel drive (FR), front-wheel drive (FF), rear-wheel drive (RR), and mid-rear-wheel drive (MR).

1. Front-wheel drive (FF): The front-wheel drive is the engine placed in front of the car, and the front-wheel drive is pulled forward by the two wheels in front.

Representative model: "National Supercar" GK5 Honda Fit.

Advantage: The engine and gearbox are placed in the front of the car to make room for the body. The propeller shaft doesn't pass under the car, and you don't feel the embarrassment of the rear seat bulge. There are no complex parts of the rear wheel drive at the rear, and the trunk space is also very large, which is quite cheap.

Disadvantages: understeer, easy to push the head; The front wheel process is complex, and the maintenance is difficult and costly.

2. What is front-rear-wheel drive (FR): the engine is front-mounted and rear-wheel drive, so that it is front-rear drive.

Representative model: "Big Rear Super" Toyota Ruizhi.

Advantages: Axle load distribution is uniform close to 50:50, and driving stability is high. The steering wheel is the driven wheel, and the steering mechanism is simple in structure and easy to maintain. Strong acceleration and climbing ability.

Disadvantages: due to the use of transmission shaft device, not only increases the weight of the vehicle, but also reduces the transmission efficiency of the power train, which affects the fuel economy;

3. What is rear-mounted rear-wheel drive (RR): The engine is arranged at the rear of the car, connected with the differential and manual transmission, the rear wheel is the driving wheel, and the engine is arranged behind the rear axle, which is the rear rear-wheel drive.

Representative model: Porsche 911 GT3 RS, the former widow-making machine

Advantages: strong power, the rear-mounted engine is closest to the rear wheels, and the rear-wheel drive relies on the transmission shaft driven by the engine. The front end is nimble, the rear is heavy, and the steering is precise.

Disadvantages: difficult to drive in rainy and snowy weather, unsafe, and expensive.

4. What is mid-mounted rear-wheel drive (MR): mid-mounted is the layout of the engine placed between the front and rear axles, and rear-wheel drive is rear-wheel drive.

Representative model: Ferrari 458 supercar

Advantages: The weight of the car is concentrated in the middle of the body, so that its steering characteristics can be optimal, it is not easy to "push the head" or flick the tail, and the steering is not only flexible but also accurate.

Because when starting or decelerating, the weight of the whole vehicle moves backwards, which increases the adhesion of the rear wheels to the ground, and it is difficult to make the tires slip no matter how strong the driving force is.

Disadvantages: The space in the car is small, not very practical, and expensive.