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

First of all, we know that most cars are not driven for all four laps at the moment. The so-called front car is something with only two front wheels, which is led by the front wheels. Similarly, reversing is driven by two rear wheels.

The car was pushed by the rear wheels. Push or pull? In fact, for the most part, there is no difference.

Unless you encounter a steep slope, according to secondary school physics, the grip of the front wheels will decrease and the grip of the rear wheels will increase. This means that the car in front is prone to slipping at this time. And it's better to drive.

Again, this happens when accelerating.

That's why most of the high-horsepower superbouges are in the hood and even the 4-drive. But there are no bulbs on the cliffs, but the precursors are not useless in the drive. Moreover, driving the front wheels of a car can only climb to the hard "top".

The point is that the front of the car is really heavy! Talk about the difference between precursor and posterior. We can only talk about the difference between the two in terms of interior space.

The engine for reversing uses a longitudinal one. It is common to squeeze through the space of the passenger seat. Most of the cars in front are made of crossbars.

The engine is in front. So drive the front car of the same bay. Usually more space than a backward car.

In addition, the reversing propeller shaft passes through the middle of the car.

Let's talk about the difference in manipulation again. That said, a lot of experts usually jump out. Understeer (push head) and oversteer (tilt tail).

Four-wheel drive: All four wheels of the vehicle are powered to turn the wheels and make the vehicle forward or backward. Advantages of front-wheel drive1

Fewer components, centralized, power transmission leads to reduced losses and high operational efficiency. 3.Weight reduction:

The mechanical parts of the front car are few and simple, which can reduce a lot of weight.

Disadvantage 1: Poor operability: The main components such as the engine and drive system are concentrated in the front of the vehicle, and the rear of the vehicle is lightweight. Especially on wet roads.

2.Insufficient rotation: The front wheels assume the functions of rotation and drive at the same time, so there is a congenital problem of insufficient rotation, especially at high speed.

3.Too much load on the front legs, which affects comfort. The front wheels are responsible for both driving and steering, the front of the vehicle is heavier, the front wheels are more worn, and the burden on the front legs when accelerating or braking is too heavy, which affects the ride comfort.

Advantages of rear-wheel drive 1, good operability. The rear wheels are responsible for the drive, and the front wheels are steered to concentrate on the rotational work, making the vehicle more responsive. 2. Good start-up acceleration performance and high comfort

The center of gravity of the vehicle moves backward when starting, accelerating or climbing, and the rear wheels use the drive wheels to improve the ground force, which helps the vehicle to start, accelerate or climb, and provides better driving stability and comfort. 3.Easy to repair:

Simplify the arrangement of the control mechanism and the structure of the steering mechanism, which is convenient for the repair and maintenance of the vehicle. Disadvantage 1: High cost and inconvenient space utilization. There are many parts in the rear car, the assembly is complex, and the production cost is relatively high.

2.Insufficient traction and oversteering: When reversing and bending excessively, the center of gravity of deceleration shifts forward, and the grip of the rear wheel decreases, which can easily lead to oversteer.

This problem is wrong, the car only has front front drive or front rear drive, the advantage of front front drive is that it is not easy to skid, the starting process is more stable, and the front rear drive will slip during the start process due to the load of no engine weight.

The advantage of the front wheel drive is that it can expand the internal space, the safety is relatively low, the efficiency is high, the disadvantage is that the operation is relatively poor, the sense of direction is poor, the advantage of the rear rear drive is that the operation performance is better, the acceleration is faster, the maintenance is simple, the disadvantage is that the cost is high, the space is small.

The advantage of front-wheel drive is that it can reduce weight, and at the same time, it can also increase the interior space to a certain extent, and the cost is relatively low. The disadvantage is that the operability is relatively poor, and there are some congenital problems of insufficient rotation. The advantage of rear-mounted rear-wheel drive is that it is easier to maintain and more comfortable.

The disadvantage is that it is very expensive and the assembly is quite complicated.

What is the difference between front-wheel drive, front-rear wheel drive, and rear rear drive? Netizen: After reading it, I suddenly realized.

Advantages of front-wheel drive are low cost and high efficiency. Disadvantages: poor maneuverability, insufficient rotation.

The front wheels assume both rotation and driving functions. The advantages of rear-wheel drive are maneuverability, good acceleration performance and high comfort. Disadvantages: high cost and inconvenient use of space.

There are many parts in the rear car, and the assembly is complicated.

The front-wheel drive is first of all able to reduce the weight of the car, and it is also very stable when driving, and it can make the environment in the car very comfortable, but after realizing it, it can make the car play a good balance role, and it is also very easy to maintain.

I don't know this very well, because I don't usually know much about cars, and I don't pay much attention to cars, so I don't know what their advantages and disadvantages are.

Advantages: It has good handling stability and formal smoothness.

Disadvantages: equipped with a transmission shaft, the weight of the vehicle increases, reducing the transmission efficiency of the power system, that is, it is more fuel-efficient. The driving space is reduced and there is a protrusion in the middle of the rear floor.

Front rear drive refers to the engine is placed in the front of the car, and the power of the engine output is transmitted to the rear wheel tire of the vehicle by the transmission shaft after the gearbox, and this drive form is more traditional, generally adopted on the truck and some cars.

Precursor:

Front-wheel drive refers to the drive form of front-facing engine and front-wheel drive. This is a form of drive that has only really emerged and been technically perfected after the 1970s, and most small and medium-sized cars use this form of drive. It integrates the transmission and drive axle into one, and is fixed next to the engine to transmit power directly to the front-wheel drive vehicle, which in figurative terms, "pulls" the vehicle forward.

Front-wheel drive means that the engine is placed at the front of the vehicle and uses front-wheel drive [FF].

It is characterized by a heavy head and a light tail, and more than 60% of the weight of the vehicle is concentrated in the front of the body. Since the body is "pulled" by the front wheels, the FF has very good straight-line driving stability. On the FF model, the engine directly drives the front wheels with a half-shaft after the differential, without passing through the transmission shaft, and the power loss is small, so it is suitable for small models.

The rear seats of the FF model have less propeller shaft convex hulls that are necessary for rear-wheel drive cars, and passengers in the rear seats do not have to shrink their feet and squeeze into a narrow space, which is the biggest advantage of FF.

FF also has disadvantages, the design of the head and tail is light, so that when the vehicle is driving at high speed, the moment the brake pedal is pressed, the front of the car is easy to sink, and the rear of the car is easy to lift or even hang in the air to cause danger. In addition, because the front part is heavier and the front wheels are responsible for both driving and steering, the steering wheel is heavier and the turning radius is large, which makes it easy to understeer.

It is precisely because of the above limitations that the FF is not suitable for a powerful engine, it is not the best design for a high-performance car, but since Citroën first introduced the FF car before the Second World War, the FF has become the most practical design for ordinary cars.

What are the characteristics of front-wheel drive (FR)?

Front and rear wheel drive. Front-engine rear wheel drive (FR) refers to placing the engine at the front of the car and using front engine rear wheel drive (FR). The front-wheel drive vehicle has an optimal 50:50 ratio in axle load distribution more evenly than the front-wheel drive vehicle, so it has better handling and driving stability.

Theoretically, the maximum speed of the front-mounted rear-wheel drive car will be higher when turning, however, because the front wheels of the car are directly dominated by the steering system and have changed the direction of travel, while the driving wheels behind still have forward inertia, it is prone to oversteer. It's a pleasure to handle for those with great driving skills, but it also makes it difficult to drive to a certain extent.

A common trait of fast runners is that their hind legs are very strong, because when running forward, the center of gravity shifts back. When the car starts or accelerates, the weight of the whole vehicle will be transferred to the rear wheels, and if the rear wheels are the driving wheels, there is no doubt that its starting or acceleration performance will be better. At the same time, the burden on the front wheels is lighter, and the front of the car will not sink and the rear wheels will not be suspended during emergency braking.

The advantages of handling, stability, dynamics and braking are the main reasons why high-performance cars still prefer to use front-wheel drive and rear-wheel drive designs.

The advantages and disadvantages of front and rear drive are 1. The engine is placed in front and the rear wheels are responsible for driving, and the body counterweight is easy to balance.

2. The engine is generally placed vertically and can be placed.

Larger. 3. A transmission shaft has been added to make the car inside.

The floor is raised in the middle and increases at the same time.

The weight of the vehicle also increases the power loss.

Power, stability, is what may be some when it comes to maintenance.

Comparison of front-wheel-drive, back-drive, advantages and disadvantages, I regretted it after reading it.

The advantage of front-wheel drive is that it can reduce the cost of the car, the advantage of front-wheel drive is that the sports performance is higher, and the power of the rear drive is stronger, the advantage of the mid-rear drive is that it is very stable to drive, the disadvantage of the front-wheel drive is that the quality is not particularly good, and the disadvantage of the front-wheel drive is that the stability is usually very poor, the disadvantage of the rear-wheel drive is that the start is relatively slow, and the disadvantage of the rear-wheel drive is that the weight of the vehicle is heavier.

The cost of the front wheel drive is low and the adaptability is strong, the manufacturing cost of the front and rear drive is relatively low and the range is relatively small, the rear is suitable for some relatively small cars, the middle rear drive is suitable for a lot of cars, and it is also very convenient to use.

The manufacturing cost of front-wheel drive is the lowest and the most adaptable, the manufacturing cost of front-wheel drive is high, the scope of application is limited, and the manufacturing cost of rear-wheel drive is high, second only to niche models.

First, the precursor:

1. Advantages: omit the transmission shaft.

device, reduce the weight of the vehicle, the structure is relatively compact; The engine is close to the drive wheels, with high power transmission efficiency and good fuel economy.

2. Disadvantages: When starting, accelerating or climbing, the load on the front wheels is reduced, resulting in traction.

Decline; Front-wheel drive and steering require constant velocity joints, and their mechanisms and manufacturing processes are complex.

Second, the front and rear drive:

1. Advantages: engine, clutch and transmission.

The assembly is close to the cab, simplifying the arrangement of the control mechanism; The steering wheel is the driven wheel, and the steering mechanism is simple in structure and easy to maintain.

2. Disadvantages: due to the use of transmission shaft device, it not only increases the weight of the vehicle, but also affects the comfort of riding; At the same time, the transmission efficiency of the power train is reduced, which affects fuel economy and power.

3. Rear precursor:

1. Advantages: In the early days, some people believed that through better design, the rear front-wheel drive car could have better collision performance.

2. Disadvantages: Because it causes the center of gravity of the vehicle to be too far back, and the front wheel load used as the drive is low, it is not conducive to acceleration, and climbing is also more disadvantageous.

Fourth, the rear rear drive:

1. Advantages: Due to the small yaw torque, the vehicle is very flexible to operate; Due to the low load on the front wheels, the steering is light.

2. Disadvantages: large crosswind sensitivity; Due to the short pipeline, the design of the exhaust device is difficult.

Front-wheel drive and rear-wheel drive, the difference between the two is **? The layout of the automobile transmission system is related to the position and drive form of the engine, which can generally be divided into four forms: front-wheel drive (FF), rear-wheel drive (RR), front-rear wheel drive (FR), and mid-rear drive (MR).

1. Precursor (FF):Front-wheel drive means that the engine is placed at the front of the car and the front wheels are used as the driving wheels. Most cars now have this arrangement.

Since the engine is arranged in the front of the car, it is the whole vehicleThe center of gravity is concentrated on the front of the body, will be a bit "head heavy and tail-light", but because the car body is pulled by the front wheels, so the front front drive carStraight-line driving stability is very good.

2. Rear-mounted rear-wheel drive (RR):Rear-mounted rear-wheel drive refers to placing the engine at the rear of the rear axle and using the rear wheels as the driving wheels. Since most of the weight of the whole car is concentrated in the rear, and it is rear-wheel drive, soThe start and acceleration are very good, so supercars generally use rear-mounted rear-wheel drive.

Rear-mounted rear-wheel drive vehicleCornering performancethan front-rear-wheel drive, front-wheel driveMore perceptive,However, when the grip of the rear wheels reaches the limit, there will be a slippage and tail flicking, which is not easy to control.

3. Front and rear drive (FR):Front-rear-wheel drive means that the engine is placed at the front of the vehicle and the rear wheels are used as the driving wheels. The weight of the front and rear wheel drive is relatively uniformIt has good handling performance and driving stabilityHowever, there are many transmission parts, the mass of transmission system components is large, and the transmission shaft that runs through the passenger compartment occupies the indoor floor space.

Fourth, mid-mounted rear drive (MR):Mid-mounted rear-wheel drive refers to placing the engine between the cab and the rear axle with the rear wheels as the driving wheels. The design of mid-mounted rear-wheel drive is already the mainstream form of drive for high-end sports cars.

Due to placing the engine with the largest inertia in the car on the body **,The mass distribution of the vehicle is close to the ideal balance, which is the guarantee of the best sporty performance of the mid-mounted rear-wheel drive vehicle.