Friday, May 7, 2010

The rise of the domestic four-wheel drive sedan market


China Product
China Product



    Talk about a car-driven approach, we have in mind are basically two drives, such as the Jetta, Passat, Fukang and other precursor and Cadillac CTS, crown, rear-wheel drive BMW and so on. In actual fact, not all cars are two-drive, four-wheel drive SUV is not a patent. Some good cars there is increasing is equipped with four-wheel drive, it can bring more than the average car safety and driving pleasure.

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    As we all know, ordinary two-drive cars have the engine all of the power output to the two front or two rear wheels, while four-wheel drive sedan is a four wheels simultaneously have been the driving force, as compared with the two drive, four-wheel drive performance The office is more commendable. Generally speaking, in winter snow and ice Road, the summer wet roads, high-speed, high-speed change when the line of cases, the wheel adhesion is weak, this time the wheels will slip, steering can not quite place, is related to the danger of not the key. This case, the precursor of vehicles prone to understeer, that is often said, "Tuitou", and then drive vehicles, turning often result in a "Drift." sdio wireless lan

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    Because it is the power to effectively pass through the four wheels to the ground, four-wheel drive cars but can effectively avoid these problems, better handling stability and security. On the other hand, four-wheel drive sedan also has a strong drive through the merits and good, you can climb the rock in the rugged trails, you can look through the hills to leave the highway, this is a two-drive cars driving pleasure unparalleled.



The domestic market, the existing four-wheel drive cars are mainly Audi, VOLVO, Fuji Heavy Industries, Subaru's part of the model. Audi's quattro all-wheel-drive sedan is characterized by a normal road driving in a good, 75% of the power output to the front wheels, rear wheel only assigned to 25%; when the road adhesion conditions change, the differential automatically adjust power output ratio, the rear wheels can be assigned up to 75% of the power, can effectively prevent wheel slip.



VOLVO AWD car with a set of electronic control gear on Demand (AOD), usually the main or front-wheel drive, four wheel speed when the detected inconsistent, AOD can be extremely fast transfer speeds increase or decrease in number according to driving conditions change the momentum of the momentum transfer to the rear wheels up to 65%. Subaru is about 30 million to 400 thousand yuan for four-wheel drive cars where representatives from its four-wheel drive technology is different from other front or rear as well as the AWD driven car, car in motion at any time, four wheels independently driven, even more outstanding and security, and won the pursuit of dynamic play car enthusiasts favor.



From Audi, VOLVO, and several four-wheel drive Subaru cars that run, even though they used four-wheel drive system structure are quite different, but there was a common feature is the ability to take the initiative to intelligent distribution according to different road conditions at all wheels front and rear axle driving force, thereby driving stability and road handling to achieve the best.



November 21 unveiled Chery Tiggo NCV (New Concept Vehicle) "a new concept car." Also used an intelligent four-wheel drive system, Borg Warner (BorgWarner) developed. The system can always collect the road information, road traffic is good, a two-drive model of the road, both energy-saving, but also ensures the stability of driving; when the system collected information on specific road conditions when the switch in time four-wheel drive vehicle model, and front and rear torque distribution of the bridge to the best to play well through sex. All of the two-drive / four-wheel drive switch is done automatically through the computer, which is Audi, VOLVO-wheel-drive cars, works basically the same.



    Maximum of two different one Tiggo NCV is allocated to power the rear axle can be from 0% to 100%, that is, when the front wheel skid completely full output power to the rear wheels; the other is the "active", such as when you pass a small parking of torque or zero torque, parking easier, when the received signal ABS working, intelligent AWD system immediately stop working to ensure that ABS system is fully functioning.



Judging from the current overall market perspective, four-wheel drive cars that are equipped with two-drive sedan driving comfort and a good four-wheel SUV through sex, but also to abandon the traditional big SUV driving resistance, manipulation is not flexible enough, the shortcomings of the high fuel consumption. With the gradual consumer attitudes, consumer groups, grown up and a number of buyers seeking dynamic and personality driven-wheel-drive cars there sales growth; the other hand, the rise of the domestic four-wheel drive sedan market will also give consumers more more surprises.

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