What is the difference between an SUV and an SUV?

Sales of SUVs in China's auto market continue to rise, especially for family cars, prompting more and more consumers to pay for SUVs.

Some people think or some people directly call SUVs off-road vehicles, but in fact, these are two kinds of vehicles, and they cannot be generalized.

To take the most practical example, a real off-road vehicle can be in Tibet, but most of your home SUVs can't meet this requirement. It is only a large shell, and its performance is far inferior to that of a professional off-road vehicle.

The off-road vehicle is mainly outstanding in terms of performance, whether it is a waterlogged road or a pothole, it can pass smoothly. But it can only pass smoothly, and if you want to pass smoothly, it is impossible. Because the chassis of off-road vehicles is very stiff and the shock absorption is slightly poor, there will be a strong sense of vibration when crossing bumpy roads.

SUV models, on the other hand, are generally only suitable for use in urban areas. The first is that the road surface is relatively smooth, and the second is that the comfort is better. After all, most people live and work in urban areas, and they don't need real off-road performance, as long as they are comfortable to drive and sit comfortably.

There are also some SUVs that can enjoy off-road purposes, such as if you want to go into the mountains, you can choose Toyota's Overlord, Land Cruiser, etc.

When it comes to off-road vehicles, we have to mention one brand, and that is Jeep.

Why when we mention JEEP, the first thing that comes to mind is an off-road vehicle rather than an SUV, because the Jeep brand is a manufacturer of professional off-road vehicles. Nowadays, in order to cater to the tastes of Chinese consumers, a city-level SUV guide has been developed, and the advertisements say that this is an SUV, which shows that this is not a real off-road vehicle.

Jeep's more representative off-road vehicle is the Wrangler, and you can see that this is not an ordinary SUV by looking at the appearance. The tough lines and domineering appearance all show the adventurer's determination to explore.

It is the dream of many men to have such a car, and most of them may be busy working from 9 to 5, but the love of off-road is deep in their hearts, waiting for the opportunity to drive such a car all over China.

The so-called urban SUV is actually a sedan installed in the shape of an off-road vehicle shell, including Toyota Highlander, Lincoln MKC and other SUVs that go up to hundreds of thousands of yuan and tens of thousands of yuan, almost all of which use front-drive, load-bearing bodies and cheap MacPherson front overhangs, which cannot be compared with real off-road vehicles. The load-bearing body of urban SUVs is relatively poor in terms of shock resistance and torsional resistance, and even causes irreversible damage to the vehicle when it is severely twisted. There was once a friend who drove a newly bought Toyota Highlander along the 318 National Highway into Tibet, after experiencing the Tongmai natural insurance of the year, the front axle inclination angle was seriously deformed, and all the auto repair shops on the market could not be repaired, so they could only spend ** to return to the factory for repair.

Therefore, a real off-road vehicle should have the characteristics of a non-load-bearing body, time-sharing four-wheel drive, at least double wishbone front overhang [the higher level is double wishbones], with differential lock, deep wading depth [modified air intake and exhaust port height is also OK], etc., and then add a towing to help yourself out of trouble. In addition, it is necessary to respond to the road conditions that are often run, and reasonably allocate car tires and spare tires.

1. Body structure

Urban SUVs tend to have a "load-bearing body". The simple and crude understanding is that - load-bearing body body + frame, that is to say, people integrate the original car frame (girder) into the body as a whole, and other parts can be installed on it.

Hardcore off-road bikes, on the other hand, retain a full frame, which is a key differentiator for them from urban SUVs. Because of the special frame, the "rigidity" of the entire body will be greatly enhanced (stronger), and no matter how tossed and twisted when passing through various bad road conditions, the car body is not easy to deform because of the strong "girders" to support.

2. Suspension system

The suspension system of urban SUVs is similar to that of sedans, mostly using four-wheel independent suspension, and the second is also in the form of front independent + rear semi-independent suspension. This suspension configuration ensures the independence of the four wheels, which can ensure the maximum comfort of the driver and occupants in the car.

The suspension of hard-core off-road vehicles mostly adopts the form of "front integral axle + rear integral axle" or "front independent suspension + rear integral axle", the most prominent feature of these two forms is - strong. The structure of the overall bridge is very "resistant", with strong load capacity, but the comfort is relatively poor, and similar suspension structures are mostly used on trains.

3. an engine

It is not difficult to understand that the engine of urban SUVs is mostly a "high-speed engine", and it is not difficult to understand that the speed can be increased when the speed is high. Since the "weight" of urban SUVs is generally lighter, the torque of this type of engine in the low rev range is relatively average, and the "culprit" of poor climbing ability lies in this.

Hardcore off-road vehicles mostly use low-speed and high-torque off-road engines. This is relatively easy to understand, when off-road, it is mostly a careful climb, so speed is not important, and high torque and strength are king. Diesel engines are inherently characterized by "low revving and high torque", so they are favored by many hardcore off-road vehicles.

The difference between an SUV (which should mainly refer to an urban SUV) and an off-road vehicle is that an off-road vehicle in the true sense not only has four-wheel drive capabilities, but also has a body design structure that does not carry a load-bearing chassis.

The main thing is that the body structure is not the same. The general urban SUV uses a load-bearing body, which is the same as the body structure of a sedan. In the case of off-road vehicles, it is generally a non-load-bearing body, with greater strength and better off-road performance.

Although on the surface there is only a transfer case and low-speed four-wheel drive, the difference in actual use is very large.

The differences between SUV vehicles and off-road vehicles are: 1. The body structure is different: SUVs use load-bearing bodies; The off-road vehicle uses a non-load-bearing body.

2. The four-wheel drive system is different: most SUVs use electric four-wheel drive, and a few use time-sharing four-wheel drive; Off-road vehicles mostly use mechanical four-wheel drive with differential locks. 3. The engine is different

The engine of an SUV is mostly a high-revving engine; Off-road vehicles mostly use low-revving and high-torque off-road engines. 4. The suspension is different: the SUV uses the form of four-wheel independent suspension and front independent suspension plus rear semi-independent suspension; The off-road vehicle uses the form of a front integral axle plus a rear integral axle or a front independent suspension plus a rear integral axle.

The difference between SUV and off-road is: difference in body, difference in suspension, difference in engine, difference in four-wheel drive system.

1. The difference in the body.

The manufacturing resistance of SUVs and off-road vehicles is not at all a level. The off-road vehicle is equipped with a non-load-bearing body. On the contrary, SUVs are equipped with a load-bearing body.

2. Differences in suspension.

There is also a big difference in the suspension of SUVs and off-road vehicles. SUVs have four-wheel independent suspension, while off-road vehicles have front and rear integrated axles.

3. The engine is different.

SUV models generally choose high-speed engines, while off-road vehicles prefer low-speed high-torque engines. High-speed engines focus more on acceleration in the middle of the body and fuel economy at high speeds. The explosive power emphasized by low-speed, high-torque engines, such as climbing hills or self-extrication, requires this ability.

4. The difference between four-wheel drive systems.

In contrast, SUVs generally use two-wheel drive or electronically controlled four-wheel drive, while off-road vehicles definitely come with mechanical four-wheel drive with differential locks.

How to choose an off-road vehicle:

1. Look at the passing performance. The most important thing to choose an off-road vehicle is to look at the passability of the car, the approach angle, the departure angle, the longitudinal passing angle, the maximum ground clearance, etc., these parameters are important factors affecting the passability of the car, the approach angle of the car is the front of the car can let the front tire contact the ground.

The maximum angle, the departure angle and the approach angle complement each other, if the approach angle of the car is relatively small, the departure angle is relatively large, the vehicle can not be guaranteed in passability.

2. Car tires. Off-road vehicles are generally equipped with tires with larger patterns and higher anti-skid performance, which can be safer when driving and get out of trouble.

Simpler, AT is an all-road off-road tire, MT is a mud tire with thicker tread and thicker pattern, the owner needs to understand clearly when choosing, to avoid choosing the wrong tire to affect driving.

Cars are an indispensable means of transportation in contemporary life, and in recent years, SUVs in the domestic automobile market have been in a state of hot sales. Everyone's demand for cars is not just as simple as transportation, many office workers, including car lovers, will consider buying an SUV, or off-road vehicles. In the inherent impression of many people, it is not clear what an SUV is and what is an off-road vehicle.

So, what exactly is the difference between an SUV and an off-road vehicle?

1. Origin and function are different.

Off-road vehicle, originated from the battlefield, is the ability to drive in the field and mountainous and other bad road conditions of the vehicle, its outstanding feature is the ability to climb hills, off-road vehicles do not pay too much attention to road driving and comfort. Whereas, an SUV is a sports utility vehicle, which can be understood as an upgraded version of a sedan. It is designed and manufactured with the driving needs of the city and the highway in mind, with a focus on comfort.

The most attractive thing about SUVs is that in addition to good comfort, they also have better passability and more space, which is convenient for daily life, travel and outdoor leisure.

Second, the appearance is different from the body structure.

SUVs are more fashionable, dynamic and good-looking in appearance. Generally, the lines are rounded, and the details are more strenched. The appearance of off-road vehicles is generally tough, and what is needed to be square is the feeling of off-road.

In terms of body structure, the wild car adopts a non-load-bearing body structure similar to that of a truck, and the SUV adopts the same load-bearing body structure as a sedan. In addition, SUVs are generally two-wheel drive, and off-road uses mechanical four-wheel drive with differential cords.