Why did the BMW X3 change from full time four wheel drive to timely four wheel drive?

Because the cost of full-time four-wheel drive is too high, the cost of just-in-time four-wheel drive is even lower, which can save money.

Don't listen to people's fools, BMW X3 is a timely four-wheel drive, not a full-time four-wheel drive, and the timely four-wheel drive is not worth mentioning in front of the full-time four-wheel drive.

Reduction is reduction, low cost, imported is 5 connecting rods, domestic multi-link is four-link, imported all-aluminum body, domestic X3 is just the engine cover is all-aluminum. Not to mention the three major parts of the engine, the domestic ones are assembled, but they are reduced so much, and the domestic ones don't turn off the sharps, and all kinds of sharps are only less than 20% cheaper than imports! Domestic is a pit!

Because the cost of the four-wheel drive at the right time is a little lower, so it makes more money, so it will be changed.

This is done to save costs, so the configuration of this car is not as high as before.

The domestically produced BMW X3 car is a timely four-wheel drive.

Timely four-wheel drive operation is more suitable for novices, because the driver is not required to control, once the road surface is bad or the drive wheels are slippery, the computer will automatically detect and immediately distribute the engine output torque to the two wheels in the front row, and naturally switch to the four-wheel drive state, which is easier to apply.

Timely four-wheel drive also has disadvantages, timely four-wheel drive is completely controlled by the computer automatically, so whether it should be changed four-wheel drive is up to the system, so to deal with some easy road conditions, if you need to complete the difficult to get out of trouble or off-road, it is almost difficult to complete.

The new X3 belongs to BMW's classic model and is a well-timed four-wheel drive. The price offered by the 4S store is very preferential, first of all, the engine power performance is strong, the gearbox is stable, and it is a timely four-wheel drive model.

Timely four-wheel drive operation is more suitable for novices, because the driver is not required to control, once the road surface is bad or the drive wheels are slippery, the computer will automatically detect and immediately distribute the engine output torque to the two wheels in the front row, and naturally switch to the four-wheel drive state, which is easier to apply.

The role of the just-in-time four-wheel drive system of the BMW X3 car is described as follows:

Compared with full-time four-wheel drive, the structure of just-in-time four-wheel drive is much simpler, which can not only effectively reduce costs, but also help reduce the weight of the whole vehicle. Due to the special structure of the four-wheel drive at the right time, it is more suitable for the models equipped with the front-wheel drive platform of the front transverse engine, which makes it possible for many SUVs or four-wheel drive sedans built on this platform to be equipped with a four-wheel drive system.

Hello, this car is full of full-time four-wheel drive, there are no problems, and the space is quite superior.

The BMW X3 is a four-wheel drive system, and the four-wheel drive will only be converted to four-wheel drive when the silver is right, and in other cases it is still a two-wheel drive system. The system will automatically switch to two-wheel drive or four-wheel drive mode according to the driving conditions of the vehicle, and no human operation is required.

Automobile four-wheel drive systems are divided into full-time four-wheel drive, time-sharing four-wheel drive and timely four-wheel drive. Timely four-wheel drive operation is more suitable for novices, because there is no need for the driver to change the branch control, once the road surface is bad or the drive wheel is slipped, the computer will automatically detect and immediately distribute the engine output torque to the two wheels in the front row, and naturally switch to the four-wheel drive state, which should be more simple to use.

That is to say, the timely four-wheel drive system will automatically turn on the four-wheel drive system when the vehicle encounters the need for four-wheel drive, and in other cases it is a two-wheel drive system. Compared with other four-wheel drive systems, the structure of timely four-wheel drive is simpler, which effectively reduces costs and vehicle weight. If you need some off-road ability, while taking into account economy, it is worth considering a model equipped with a well-timed four-wheel drive.

Photo by Ling Xiufang of Pacific Automobile Network).

For domestic consumers, when buying a car, people generally tend to buy SUV models. In the BMW luxury brand, because the ** of the BMW X5 is too high, young people have set their sights on the BMW X3, but what makes many people wonder is why the new X3 has canceled the full-time four-wheel drive?

In fact, the BMW X3 has never used full-time four-wheel drive, and the official has always announced that the X3 is equipped with "XDRIVE" which means intelligent all-wheel drive system, which is a set of intelligent four-wheel drive system developed by BMW itself. It is not clear whether the system is full-time all-wheel drive or just-in-time four-wheel drive.

However, since the system has always used a 40:60 power distribution between the front and rear wheels, consumers prefer to call it full-time all-wheel drive. Therefore, the BMW X3 has been using timely four-wheel drive, so interested friends can turn to the configuration table of the old model to check it.

Is the X3 BMW 4WD usually rear-wheel drive?

That's right, the BMW X3 is a well-timed all-wheel drive system based on a rear-wheel drive platform. It uses a transfer case **AT C1 3 and is equipped with a multi-plate clutch** differential. From an off-road point of view, this four-wheel drive system is not as good as a full-time four-wheel drive system, and it is not suitable for climbing mountains and wading in water.

However, from the perspective of the handling of the light, the BMW X3's four-wheel drive can constantly change the torque distribution according to the road conditions, and intelligently output the most suitable torque to the front and rear wheels. The default front and rear torque distribution is 40:60, and the maximum front and rear torque distribution ratio is 0:

Between 100-100:0, the torque distribution can be completed in seconds.

To put it simply, when the vehicle is driving fast, the system will reduce the torque distributed to the front axle when judging that the vehicle may be understeered, and all the power will be transmitted to the rear axle, so as to ensure the driving stability of the vehicle. When the vehicle is skidding, the four wheels can obtain stronger adhesion through different driving and hail torques, so as to avoid the phenomenon of empty wheel turns.

In addition, if the vehicle needs to accelerate sharply, the system will also output a part of the power to the rear wheels, so that the vehicle has better acceleration performance; When the vehicle brakes suddenly, the system cuts off the power output to the rear wheels, allowing the vehicle to reduce the braking distance.

In general, although the BMW X3's four-wheel drive is not full-time four-wheel drive, the performance of this system is still very good. After all, for an urban SUV, few people will really drive the BMW X3 to play off-road, and it is more suitable for urban roads is the original intention of the design of this car.

The all-new BMW X3 is all full-time four-wheel drive:

1. The early wide round set Xdrive full-time four-wheel drive system is composed of a multi-plate clutch ** differential and a transfer case, and the differential lock and other equipment will naturally not appear on this urban SUV, but instead of the land collapse, the four-wheel electronic auxiliary braking will help the vehicle have a better performance of getting out of trouble;

2. Under normal conditions, the front and rear torque distribution of this XDRIVE full-time four-wheel drive system is 40:60, and the electronic control system can realize the power switching of 0-100 and 100-0 in the front and rear under different road conditions;

3. From a structural point of view, the greater significance of the XDRIVE four-wheel drive system of BMW X3 is to improve the extreme handling of rain and snow roads, as well as improve the passability of the vehicle on light non-paved roads.

The BMW X3 is not a full-time four-wheel drive. Take the 2020 Chain Silver and the 2019 BMW X3 as examples, they use a timely four-wheel drive drive.

Just-in-time 4WD means that the vehicle will only change to 4WD mode when appropriate, and in most cases it will still be 2WD.

The four-wheel drive used in the BMW X3 is BMW's XDRIVE four-wheel drive system. BMW's xDrive all-wheel drive system is very powerful on paved roads, ensuring that no matter how the road surface changes, the right amount of torque will be delivered to the wheels with the best grip.

The drive mode of the car is divided into three forms: front-wheel drive, rear-wheel drive, and four-wheel drive.

Among them, four-wheel drive is divided into the following three types: timely four-wheel drive, time-sharing four-wheel drive, and full-time four-wheel drive.

Generally speaking, timely four-wheel drive is born for the city, and the off-road ability is the weakest, and generally only some urban SUVs will be equipped with timely four-wheel drive. However, it is important to know that the off-road ability of the four-wheel drive at the right time, even if it is weak, is better than that of ordinary front-wheel drive vehicles.

Some hard-core off-road vehicles are either time-sharing four-wheel drive, or full-time four-wheel drive. These two forms of drive have the most off-road capabilities.

There are some performance cars or sports cars that also use four-wheel drive. The four-wheel drive of the performance car is designed to keep all four tires gripping and not to slip the tires during rapid acceleration and cause poor results.