Difference between front-wheel drive and rear-wheel drive on ice and snow roads.

On the icy road, the driving difference between the front drive and the rear drive is that the rear wheel is more likely to lose grip because the rear part of the front drive is lighter, and then after the driving wheel slips, the front drive will deviate from the scheduled route due to insufficient steering, so it is easier to get out of control than the rear drive. Let's briefly introduce the driving difference between driving in front of the ice and snow road and driving behind the wheel.

Difference between front-wheel drive and rear-wheel drive on ice and snow roads.

On the icy road, the driving difference between the front drive and the rear drive is that the rear wheel is more likely to lose grip because the rear part of the front drive is lighter, and then after the driving wheel slips, the front drive will deviate from the scheduled route due to insufficient steering, so it is easier to get out of control than the rear drive. Let's briefly introduce the driving difference between driving in front of the ice and snow road and driving behind the wheel.

The difference between driving in front of the snow and driving behind it: start

For the start of ordinary road conditions, rear-wheel drive has a natural advantage. Because the engine is in front, the center of gravity of the car will automatically move backwards when starting. At this time, the grip of the rear wheel as a driving wheel will be obviously improved, and a reasonable counterweight ratio is more conducive to accelerating and improving ride comfort. But it's very different when you need to be on the ice and snow road. For the front drive, if the tires slip, you can't start in the same place at most, but the rear drive may be in danger of slipping. Moreover, a heavy engine is pressed on the driving wheel of the front drive, which can also increase the adhesion of the driving wheel on the ice and snow road.

The difference between driving in front of the snow and driving behind: turning

As the name implies, the predecessor is the driving wheel in front, which is simply to "pull" the car to run; Then the driving wheel of the car is behind, so it is "pushing" the car to run. The difference between pushing and pulling when turning is obvious.

On the dry road, because the front wheel needs to be responsible for driving and steering at the same time, it is prone to understeer and poor high-speed stability. Then, when cornering at high speed, the front wheel will not bear additional driving force, which will reduce its burden and increase the driving limit. However, when the car turns excessively, the driver must have more skillful driving skills to save the phenomenon of pushing the head, otherwise the trouble will be even greater, which is why only a few sports cars that really pursue driving pleasure still use rear-wheel drive technology.

Driving differences between front-wheel drive and rear-wheel drive on ice and snow roads: acceleration and slip adjustment

No matter what driving mode, no matter how powerful the car is when it starts on the icy road, it is easy to slip. Therefore, various manufacturers have developed electronic devices with different names to solve this problem. Although they have different names, they work on the same principle. For example, after the electronic equipment detects the tire idling, the ASR system will immediately send an instruction to the computer to make the electronic control system automatically reduce the valve opening and throttle opening. TCS system with the same working principle can not only adjust the throttle, but also instruct the gearbox to downshift and brake the skidding wheels at the same time, which will further improve the acceleration performance, climbing ability and high-speed stability.

How to distinguish between front drive and rear drive?

Little friends basically know that cars are composed of many system components, and each system has many components, and each component is composed of many components, which is quite complicated. So, do your friends basically know all the parts in the car? Che Bian Xiao guessed that his friend didn't know many parts, so today Che Bian Xiao came to tell his friend how to distinguish between front drive and rear drive!

Distinguish between front drive and rear drive and enjoy the front drive.

Front wheel drive refers to the power distribution mode in automobile design in which the engine only drives a pair of front wheels. At present, most cars are basically front-wheel drive. In the early days of automobile development, the design of rear wheel drive was more common. In front-wheel drive cars, most engines are installed horizontally, that is, the arrangement direction of cylinders is perpendicular to the driving direction of the car, but a few engines are installed vertically. Front-wheel drive vehicles usually have an engine and a gearbox installed at the front of the vehicle.

Distinguish between front drive and rear drive and enjoy rear drive.

Most of the engines and gearboxes of rear-wheel drive vehicles are arranged longitudinally, that is, the cylinder arrangement direction of the engine is parallel to the driving direction. Most engines are installed in the front of the car, and the differential installed between the two rear wheels is driven by the transmission shaft to distribute power to the rear wheels. But there are also mid-engine and rear-engine designs, which are more common in sports cars. Since the invention of the automobile, the layout of rear wheel drive has existed. Before 1950s, most cars were basically rear-wheel drive. Since then, with the popularity of front-wheel drive and four-wheel drive vehicles in China, the proportion of rear-wheel drive vehicles has gradually declined. Cars or sports cars that pay attention to acceleration are basically rear-wheel drive, while most middle-low cars are basically front-wheel drive. Most off-road vehicles and pickup trucks that emphasize off-road performance use four-wheel drive.

Distinguish the advantages of front drive and rear drive.

Empty because the power system is basically located in the engine compartment in front of the car, the transmission shaft and the rear differential leading to the rear wheel are omitted, which will not occupy empty space, thus increasing the internal volume of the car body. The cost reduces the number of parts. The weight and fuel weight are also reduced accordingly, and the fuel efficiency is better. The efficiency of the power system is directly connected with the gearbox and transmission shaft, which is contrary to the power system driven by rear wheels, reducing the total weight and mechanical inertia, thus improving fuel efficiency. Because the assembly power system is centralized, it can often be assembled into a whole and then installed on the car, which improves the installation efficiency. Due to the traction of the power system, the front wheels will bear more body weight. Because the front wheel is the driving wheel, the tire can get more traction (grip) when it is wet. When the motor drives the front wheel to drive the vehicle to turn, due to the connection of engine braking, understeer usually occurs. Most people think that understeer is easier to adjust than oversteer, and it is unlikely to affect tail swing and rotation. More stable under crosswind conditions. How to distinguish between driving in front of and driving behind on icy roads @20 19