Today, the Mala car market takes stock of the black technologies developed by major manufacturers? Do you think it's weird?
Audi -quattro four-wheel drive system
I believe most people know Audi quattro four-wheel drive system. If you don't know, then you must know whether the sign of metal gecko is often seen in the street. It can be said that Audi is the first car company to apply the four-wheel drive system to the car rally and achieve great success, and this four-wheel drive system is quattro. 1980, Audi developed the quattro four-wheel drive system and mounted it on a two-door car based on the Audi 80 chassis, and the name of this car is also quattro.
There are many kinds of four-wheel drive systems in the automobile market, and the core of the four-wheel drive system lies in how to distribute the front and rear power. Audi uses the TOSON differential as the central differential, which is fully responsible for the power distribution of the front and rear wheels after coming out of the gearbox. The smarter and more reasonable quattro four-wheel drive system helps Audi to remain competitive among similar products.
Volkswagen stratified combustion technology (TFSI/TSI)
Volkswagen's stratified combustion technology (TFSI/TSI), through the design of the internal shape of the combustion chamber, makes the mixture around the spark plug richer, while other areas are leaner, which ensures that lean combustion can be achieved as much as possible under the condition of smooth ignition. This technology can significantly improve the power and economy.
Volkswagen's technical research on stratified combustion lasts the longest and has the deepest attainments. This technology has been applied to the third generation EA888 engine abroad, but in China, only Audi's TFSI series engines have the honor to carry it, and the products under the Volkswagen brand do not have this black technology opportunity. In addition, Toyota's 2.0T engines used in some models of Highlander and Lexus also applied this technology.
Land Rover All Terrain Feedback System
As an SUV brand, Land Rover has turned off-road into its own brand label. Different from other brands of off-road systems, Land Rover has upgraded this all-terrain feedback system to the system level. The simple explanation is that this system can dominate almost all other control systems in the car, including engine management system, electronic braking force distribution system, steep slope descent control system, gearbox shift design, electronic differential and so on.
In fact, this system works really well. There are corresponding solutions for grass, gravel, snow, mud, sand and other ground visible road conditions, which is also one of the core competitiveness of Land Rover.
Mazda rotor engine
As an ingenious brand that has been paranoid for a lifetime, the rotary engine was born as early as the 1960s, when Mazda, who fell in love with the rotary engine at first sight, bought the patent of the rotary engine from the German NSU company. In 20 12, Mazda officially stopped producing rotary engines because the emission standards were not up to standard.
Because of its special structure, the crankshaft of rotary engine can complete the process of fuel injection, ignition and compression ignition for three times every revolution. Under the same displacement, its output power can reach three times that of an in-line engine. Moreover, smaller size, lighter weight, lower noise and vibration have attracted a group of fans. However, because there is only one seal between the adjacent chambers of the rotary engine, the standard requirements for sealing performance are extremely high, and the inherent high rotation speed of the rotary engine is a heavy burden on the material durability at that time. At the same time, high fuel consumption and high pollution have also become fatal shortcomings of rotary engines. Although it is difficult to see the rotary engine now, it does represent a very outstanding engine technology of an era.
Honda -VTEC/VTEC
The system named "VTEC" and the later I-VTEC system should be the most talked about in Honda's automobile series. This system is the first valve control system in the world that can control the opening and closing time and stroke of the valve simultaneously. Its working principle is: when the engine changes from low speed to high speed, the electronic computer will automatically press the engine oil to the small turbine in the driving gear of the intake camshaft, so that the small turbine will rotate at a certain angle relative to the gear under the action of pressure, and the camshaft will rotate forward or backward within 60 degrees, thus changing the opening time of the intake valve and achieving the purpose of continuously adjusting the valve timing, thereby achieving the purpose of increasing power and reducing fuel consumption.
Ma Yue:
The continuous progress of technology has gradually expanded the development of automobile manufacturers. For mass production models, these technologies have brought different driving experiences to consumers, and it is precisely because of the blessing of technology that these car manufacturers with "unique skills" are getting stronger and stronger.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.