Quattro (full-time four-wheel drive) technology is Audi's patented technology, and its principle is summarized as follows:
1. When driving normally on good roads, the Audi equipped with quattro is basically a front-wheel drive vehicle-75% of the power is output to the front wheels and 25% to the rear wheels.
2. When the road adhesion changes, this ratio will change automatically. In the most extreme case, the rear wheel can be divided into 75% power.
3. The core of 3.quattro is the Torsen differential, which is installed at the rear of the transmission and can continuously transmit power to the front and rear drive wheels.
4. There are no electronic components in 4.Torsten differential, and all actions are done automatically by machinery. Unlike some manual transfer gears, it will not bring obvious impact when the front and rear torque distribution changes, and it will not be as slow as the central differential of hydraulic coupling.
The engine power of large displacement vehicles and ordinary two-wheel drive vehicles is all output to two driving wheels. When the power exceeds the adhesion of the wheel, slipping is inevitable. However, the quattro model can effectively avoid wheel slip during rapid acceleration because the power is evenly distributed to the four wheels. Due to this feature, vehicles with quattro (full-time four-wheel drive) technology have the following advantages:
1. The starting acceleration drive wheel is not easy to slip.
2. The mountain road is faster when it passes a sharp bend.
3. It's easier to control vehicles when the road is slippery in rainy days.
4. Snow and ice roads will also get a good driving experience.