What is the difference between an SUV car and an off road vehicle

The full name of SUV is: Sports Utility Vehicle, that is, "Sports Utility Vehicle". SUVs originated in the United States and are also the best-selling models in the American market in recent years.

In the 80s of the 20th century, SUV was a kind of van developed on the chassis of pickup trucks to cater to the hobbies of young white-collar workers. The SUV adopts four-wheel drive, and the general front suspension is the independent coil spring suspension of the sedan model; The rear suspension is a non-independent leaf spring suspension with a large ground clearance; To a certain extent, there is both the comfort of a sedan and the off-road performance of an off-road vehicle. This type of car can carry both people and goods, has a wide driving range, and has the function of a luxury car.

The SUV has both urban walking and outdoor sports, which is extremely in line with the mentality of modern young people who pursue strong individuality. SUVs can adapt to various road conditions, and the performance-to-performance ratio is relatively high, which is very much in line with the consumption needs of China's younger generation. The rise of SUVs in China is the inevitable result of the rapid development of China's auto market and car culture.

SUV SUV station wagon He Honglong told reporters that SUV only began to rise in the United States in 1998, and the concept of SUV entered China in 1998. As you can see from the literal meaning of the SUV, it is a vehicle that combines sport and multi-purpose in itself. Station wagons were very popular in the United States from the 50s to the 80s, winning praise for comfort and versatility; The off-road vehicle is relatively bulky and has a large fuel consumption, which finally gave rise to the concept of SUV, which is a combination of a station wagon and an off-road vehicle.

The chassis of the SUV is high, there are girders, which can be towed, and the space of the rear trunk is also wide.

SUV heavy-duty off-road vehicle suitable for various terrains such as mountain roads, streams and rivers, but few people drive SUV like this, because the body technology of SUV is made for road driving, high safety performance, smooth driving Off-road vehicles, such as jeeps, are low-tech but suitable for driving special road conditions, the cost is cheaper than SUVs, the safety performance is lower than SUVs, SUV performance is relatively high, and the fuel consumption is more than Jeep.

The differences between SUVs and off-road vehicles are: 1. The body structure is different: SUVs are load-bearing bodies, and the load-bearing bodies are lighter in weight and more effective in the use of space; The off-road vehicle is a non-load-bearing body, and the non-load-bearing body has good stability and safety.

2. Different power: SUVs mostly use two engines; Off-road vehicles mostly use low-revving, high-torque engines. 3. Different driving forms:

Most SUVs are two-wheel drive vehicles, and high-end or hard-core SUVs will be equipped with four-wheel drive systems as standard, while most of them use intelligent and timely four-wheel drive based on front-wheel drive, which is subject to the defects of the structure itself and cannot transmit more than 50% of the power to the rear axle; The off-road vehicle basically adopts time-sharing four-wheel drive, and the wheels are equipped with a solid tooth-embedded differential lock, which can achieve 100% rigid locking, when there is a wheel slippage, the power will be immediately shared by the remaining three wheels, if there are three wheels slipping, the power can even be 100% concentrated on another non-slipping wheel, ensuring a strong off-road ability.

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.

SUV is a multi-functional van, off-road vehicle is a professional vehicle with a strong drive and long-distance travel function, no matter in terms of structure, appearance, performance, etc., there are fundamental differences.

1. The body structure is different.

Off-road vehicles have a non-load-bearing body structure similar to trucks, and SUVs use the same load-bearing body structure as sedans.

Cars with non-load-bearing bodies have rigid frames, also known as chassis girder frames, which are flexibly connected to the frame by rubber cushions or springs. The frame is the foundation that supports the whole car and bears the various loads of the various assemblies installed on it. The body only bears the gravitational force and inertia force of the loaded personnel and goods, and the auxiliary role of the body in the frame bearing is not considered in the frame design.

The load-bearing body does not have a frame, and the body serves as the mounting base of the engine and chassis assemblies, and the body has the role of a frame and bears all the loads. The load-bearing body structure is widely used, because of the lower cost, lighter weight, lower body, can be a good key ant suitable for road driving, and has a very good performance in comfort and sliding draft.

2. The suspension structure is different.

Off-road vehicles mostly use double wishbone independent suspension, while SUVs mostly use MacPherson suspension system. The double wishbone independent suspension has two upper and lower wishbones, the lateral force is absorbed by both wishbones at the same time, and the struts only carry the weight of the body, so the lateral stiffness is large. And it can adapt to the road surface, the tire has a large ground contact area and good adhesion to the ground.

The double wishbone suspension is extremely sporty and is used in off-road vehicles and supercars such as Ferrari and Maserati.

MacPherson suspension in the driving comfort performance is satisfactory, its structure is not large, can effectively expand the car riding space, but also because of its structure for the straight type, the impact of the left and right direction lacks blocking force, anti-braking nodding effect is poor.

3. The four-wheel drive system is different.

Off-road vehicles must have a four-wheel drive system, whether it is full-time four-wheel drive or time-sharing four-wheel drive. The main car environment of SUV is more inclined to the city or suburbs, and does not necessarily need four-wheel drive, in many SUV models on the market, some only have four-wheel drive with high configuration, and some even have no four-wheel drive in the whole series.

The four-wheel drive system of off-road vehicles generally has strong ability and reliability. Off-road vehicles are required to have a low-speed four-wheel drive gear (commonly known as low four) that can amplify the torque, which can amplify the torque of the vehicle considerably, and off-road vehicles can generally provide nearly 2 times the amplification, such as the Wrangler Rubicon model can even provide 4 times.

This will play a key role when getting out of trouble and climbing steep slopes. And some off-road vehicles have hard-connected ** differential locks, as well as rear axle differential locks. Even if some models of SUVs have Xinliang filial piety differential locks, they mostly use silicone oil viscous coupling, which is likely to fail in difficult road conditions.

Encyclopedia - SUV

Encyclopedia — off-road vehicles.

What is the difference between an SUV and an off-road vehicle? Which kind of car should we buy?