Is it better to have a front wheel drive or a rear wheel drive electric car? Let s talk about the ad

Front rear drive is the earliest drive system used in automobiles, and its concept is that the engine is in the front and the power take-off end is facing the rear axle; The rear axle differential is connected via a large propeller shaft.

Along with the drive wheels, this drive system is characterized by being suitable for heavy loads and improving acceleration and handling, but why are there fewer and fewer rear-wheel drive cars?

There are two reasons for this, both of which are related to "oil".

The "quality" of the fr system

The front-wheel drive system began to decline in Europe in the late 50s of the last century, and the front-wheel drive car became popular during the same period; And it is in the French car Citroën.

as the core, to Charles de Gaulle.

and mostly for the promotion of users by well-known French personalities. It seems that European cars prefer small mini cars with front-wheel drive, why is that?

Front-wheel drive Citroen cars were not much in the market before the 50s, and World War II.

The stage was also only used by the Free French Army, which had no rear-drive vehicles available; That's the problem - the choice of front-wheel drive cars when there is no car available, which is enough to show that front-wheel drive is not as good as rear-wheel drive.

The reason is that the three core assemblies of the front-wheel drive system are concentrated in the front of the car, which will cause the positive pressure of the rear wheels to be lower than that of the front wheels, and the rear of the car is easy to slip sideways when cornering. At the same time, the center of gravity of the vehicle shifts backward when accelerating, resulting in a weakening of the grip of the front wheels, and it is easy for the front drive wheels to slip during rapid acceleration.

However, for practical models, the front wheels are more likely to slip when climbing with heavy loads, causing the vehicle to lose control, resulting in front-wheel drive cars not being very popular. So in the early days, only France preferred this kind of vehicle, so how did it gradually become the mainstream option in the later period?

The oil crisis & economic crisis had a great impact on Europe and the United States in the second half of the 20th century, among which the British, German and French automobiles in Europe were greatly affected in this stage; British cars except for miscellaneous Morgan.

In addition, all of them have been acquired by car companies in other countries, such as the German BMW.

Mercedes-Benz, Audi.

Volkswagen, Borgward and other brands have experienced bankruptcy crises, Borgward went bankrupt directly, and Volkswagen and other brands formed alliance car companies to barely survive the difficulties; Italy is also known for Fiat.

For the core imitation of the mass model ......

The core factor of the difficulty of car companies is the deterioration of the performance of the consumer market, and the user's requirements for the cost of using the car are getting higher and higher, and the requirements for the quality of the vehicle are getting lower and lower; As a result, front-wheel drive vehicles with obvious fuel-saving advantages have gradually become the mainstream, and the high integration of the front-wheel drive system has eliminated the bulky rear drive system, and the requirements for the rear suspension are not high.

Such a design can effectively reduce the curb weight of the body, and the fuel consumption can be reduced by about 100kg for every 100kg of mass; Add to that the manufacturing cost of the pre-drive system.

Lower, the vehicle's ** can also go down.

Then front-wheel drive cars with the dual advantages of fuel consumption and ** will inevitably become the mainstream, but they are still inferior to front-wheel drive in terms of quality; To put it bluntly, the reason for the elimination of the rear drive is not the subjective "I don't love it", but the objective "I can't afford to love".

Rear-wheel drive cars are about to "return to the C position".

To sum up, the front-wheel drive car is the product of the consumer's "compromise", the buyer's market is the same truth, and the company has to produce what the consumer needs; So rear-wheel drive cars are no longer mainstream, but that's just the frustration of the gasoline-powered car era.

The advantages of front-wheel drive are: reduce the weight of the vehicle, reduce the body, improve the ride comfort, the indoor space is more spacious, due to the engine front-position, driven by the front wheels, omitting part of the power of the rear wheel drive disappears, directly from the front wheel output transmission, improving fuel economy, another point is that the engine is front-loaded, the weight is in the front, the direction stability of braking is high, and the last one is to increase the volume of the rear trunk!

The advantages of front-wheel drive are: in acceleration and creeping waves, the adhesion of the rear wheels is larger, the traction performance is better than that of the front-wheel drive type, the axle load is evenly distributed, and the weight of the body is very average, so the handling stability is higher, and there will be no understeer! (This is a phenomenon that occurs in front-wheel drive cars), thus, the maintenance of the steering machine is also reduced, and it is easy to repair

I personally prefer the rear-drive car, although the fuel economy is poor, the vehicle quality is heavy, if the pursuit of power of the rear-wheel drive car is better than the front-wheel drive car, but with reference to some information, the front-wheel drive car is better, from the fuel, safety, ride comfort, the front-wheel drive is superior, in fact, each has its own pros and cons, fish and bear's paw, depending on your focus to choose the front-wheel drive or rear-wheel drive!

Let's start with the conclusion: of course, it is good to drive back.

1. You know that if the front wheels are powered and have to steer at the same time, it will inevitably cause the problem of limited steering angle and slower steering response, so fundamentally speaking, it is most reasonable for the front and rear wheels to assume the tasks of steering and driving respectively.

2. The problem of weight distribution. The most ideal state of the weight of the front and rear wheels of a car is 50:50, and if the power, deceleration and steering mechanism of a car are all in the front of the car, it is bound to cause the front of the car to be too heavy, and the whole vehicle is top-heavy, which seriously affects the handling of the vehicle.

So you will find that the current mainstream pure electric platform sedans are generally rear-drive, such as Tesla, Xiaopeng, etc., if there is a four-wheel drive high-performance version, it is also based on the rear-wheel drive version and add a front motor to drive the front wheels.

As for why the basic version of BYD Han EV is front-wheel-drive, you know, Han EV and Han DM share the same platform, and the disadvantage is that the Handi vehicle layout is still the front-wheel drive layout of the traditional economy car, and the front-wheel drive shortcomings I talked about above, it has both. Even the "torsion steering" problem of conventional front-wheel drive transverse engines, it has.

So look at the car not only look at the glossy shell and beautiful interior, but also look at the chassis and study its research and development background.

In addition to the shortcomings of rear-wheel drive vehicles in the snow, they are obviously superior to front-wheel drive cars in other aspects, especially in terms of driving experience. Now most cars choose the first is to save costs, the second is to avoid the transmission system to lose the passenger space in the car (the engine is mostly in front) electric vehicles are wires, will not occupy the passenger space in the car, the battery pack is not in the front of the car, and the cost will not increase. Batteries are rarely bought in snowy areas due to cold attenuation.

The use of rear-wheel drive in the car has many advantages, such as excellent climbing and sudden start-up performance, smooth and stable operation, etc. However, in conventional cars, the propeller shaft (or operating action) is required to transmit power to the rear axle, which increases the weight of the vehicle and encroaches on passenger space. However, electric vehicles are powered by wires, so these shortcomings of traditional rear-wheel drive vehicles do not exist.

Electric cars are divided into high speed and low speed according to speed, and low-speed cars are generally driven by the elderly, it doesn't matter. High-speed cars produce high-voltage discharges during operation, which has radiation and is harmful to the driver.

The front drive is closer to the driver, and the rear drive is relatively far away from the driver, and the radiation is smaller. Just look at the design of BMW's i-series.

That's good for rear-drive.

Rear-wheel drive balances the weight distribution between the front and rear wheels, which is good for handling.

In addition, the rear-wheel drive has significantly improved steering angle and responsiveness as the front wheels are no longer bound by the drive shaft.

In the past, when fuel vehicles were used, the production and manufacturing difficulty and process of rear-wheel drive vehicles were higher than those of front-wheel drive cars, so luxury brands would use rear-wheel drive. For electric vehicles, there is almost no difference between front-wheel drive or rear-wheel drive in terms of production difficulty, so the pure electric platform will inevitably choose rear-wheel drive, such as Tesla and Xpeng, BYD Han EV because it is not a pure electric platform (and Han DM share the platform), so its basic model is still front-wheel-drive.

The front-wheel drive control is flexible, suitable for plain areas, the rear drive is more strong, suitable for places with slopes, get a remote control car to try it, the remote control car drive put in front of the climb a plank slope, adjust the angle of the plank so that the car just can't climb, and then drive the car backwards, the car is very easy to climb up.

For ordinary drivers, the front wheel drive is better to drive, if you look at it purely from a technical point of view, the rear wheel drive is definitely better than the front wheel drive in general. Because the rear-wheel drive also involves the counterweight of the car, the rear-drive counterweight is often more reasonable, and the counterweight will sometimes affect the performance of the car.

In addition, the traction of the rear wheel drive is greater than that of the front wheel drive, so generally racing cars or sports cars are rear-wheel drive. From a handling point of view, the rear wheel drive is more troublesome than the front wheel drive, for a common example, the rear wheel drive is prone to oversteer when the speed is fast.

That is to say, if you hit the same number of turns, the rear wheel drive is likely to turn at a larger angle than the front wheel drive, and the driver will have to counteract the oversteer in the direction of the return. Therefore, the front drive is better to drive, it also depends on the person, the front drive is suitable for novices, and the rear drive is more fun to drive for veterans.

But having said that, the family cars that generally use rear-drive are more than hundreds of thousands of C-class cars or supercars, like Ruizhi is relatively special, but Ruizhi's displacement is not high, and it really runs OK.

It must be that the rear drive is better than the front drive, especially the light weight, if the front is too heavy, the car steering is not easy to use, and it is easy to fall when braking before braking, when you brake after braking, the brake is easy to slip due to the light weight behind you (you must know that the motor also has a certain weight); The drive performance is also relatively poor.

Rear-drive. Electric bikes.

Most of them are rear-wheel drive, in fact, after the release of the new regulations, this kind of car has been included in the electric motorcycle.

of the ranks. The battery of this electric vehicle is large enough, the motor power is also sufficient, the power is very good, and the speed is also very high. It's okay to run farther with the battery fully charged.

The reason why this kind of car is more popular is essentially more in line with the domestic use situation. For example, you have to carry people, carry goods, run long distances, bad roads, and climb hills.

Precautions for driving electric vehicles.

Pedestrians and non-motorized vehicles should abide by the principle of going their own way, the principle of right traffic and the principle of safe passage, and take the non-motorized lane when traveling outside, and cannot stay on the motorized lane or go in the wrong direction.

There is a traffic light.

At the intersection, Yuanzhushan should pass according to the signal light instructions, get off the car and take the zebra crossing.

Do not cross diagonally and minimise the time spent on the road; At intersections where there are no signal lights, pay attention to ensure that it is safe to pass through.

At present, electric vehicles are generally rear-drive-based, front-wheel drive vehicles, of course, but there are relatively few, because electric vehicles do not need a complex transmission mechanism, only need more than one motor on the drive shaft, so it is generally arranged in the rear wheels of staring at the wisdom more, which can improve the overall performance of the vehicle.

Hello, the first electric vehicle drive in the front wheel, because the front wheel modification is relatively simple, but with the development of technology, buried macro is now placed in the meniscus book rear wheel, because the rear wheel drive is more stable, so it is safer to put the rear wheel, but it needs buried tour technical support.

Most electric bicycles are rear-wheel drive, in fact, after the release of the new regulations, this kind of car has been included in the ranks of electric motorcycles.

Generally speaking, the electric sedan spine motor car is more rear-drive, which is more related to design and safety, so we must pay attention to it when purchasing electric vehicles.

Electric vehicles are normally rear-drive, because the rear-drive force is relatively large and the running is faster.

Generally, they are rear-wheel-drive, unless they are electric vehicles with front-wheel drive.

Rear-wheel drive. If the road is flat, you can still consider the front drive. In the market, many Mukuzhou sedans have a reputation as front-wheel drive, and many electric vehicle manufacturers and brands have also imitated this design.

Two-wheeled electric vehicles are generally rear-mounted motors, and after three-wheel facelift, they are generally rear-wheel drive and single-wheel drive.

Front drive has an advantage over rear drive. When the road surface slips in time, it will not sway from side to side like the rear drive, and it will not sway from side to side. Due to its structure, the entire center of gravity of the rear drive is not above the rear drive wheels, and there is not enough lateral force to guarantee the movement of the vehicle, so the tail will easily swing in the snow.

The biggest difference between front-wheel drive and rear-wheel drive is the way the engine drives the vehicle. Front-drive is generally used in economy vehicles. Because there is no propeller shaft, the following advantages can be offered:

Reduce costs, high transmission efficiency, and relatively low energy consumption because the weight of the vehicle is basically concentrated in the front.

Rear-wheel drive is driven by the rear wheels, and the components are becoming more and more complex. Compared to the front wheel drive, the drive shaft and rear wheel differential were added. The front drive system began to decline in Europe from the end of the 50s of the 20th century, and in the same period the front drive system became popular.

And it is based on the French car Citroen, promoted by Charles de Gaulle and many French celebrities. It seems that European cars prefer small mini cars with front-drive. Why?

Citroen cars had no market until the 50s of the 20th century, and in the Second World War they were used only by the Free Army of France, which did not have rear-wheel drive.

That's the problem. The fact that the 3354 chose a front-wheel drive vehicle because there was no car available is enough to show that the front-wheel drive car is not as good as the rear-wheel drive vehicle. The reason is that the three cores of the front-wheel drive system are always concentrated in the front of the car, which will cause the positive pressure of the rear wheels to be lower than that of the front wheels, and the rear end is easy to slip when cornering; At the same time, the vehicle's center of gravity shifts backward when accelerating, which weakens the grip of the front wheels, and the front drive wheels are prone to slip when accelerating quickly.

But for utility models, the front wheels are more likely to slip when climbing with heavy loads, causing the vehicle to lose control, making the front wheels less popular.

So in the early stage, only France preferred this kind of vehicle, so how did it gradually become a mainstream option in the later stage? Because engine power is relatively long from the propeller shaft to rear-wheel drive, rear-wheel drive is not as good as front-wheel drive in cold weather. In rainy and snowy days, the rear wheels are prone to slipping, slipping, or not climbing uphill.

In fact, whether it is front-wheel drive or rear-wheel drive, in winter, it completely depends on technology and experience. Driving in the winter is indeed very skillful, but you can't use your usual driving experience to deal with the icy roads in the winter. In winter, no matter what kind of driving form you drive, you still need snow tires to cooperate.