ignition coil introduce

With the development of gasoline engines in automobiles towards high speed, high compression ratio, high power, low fuel consumption, and low emissions, traditional ignition devices are no longer suitable for use. The core components of ignition devices are ignition coils and switch devices. By increasing the energy of the ignition coils, the spark plug can generate sufficient energy to produce sparks, This is the basic condition for the ignition device to adapt to the operation of modern engines. The ignition coil is divided into two types according to the magnetic circuit: open magnetic and closed magnetic. The traditional ignition coil is used with an open magnetic type, and its iron core is stacked with about 0.3 millimeters of silicon steel, with secondary and primary coils wound around the iron core. The closed magnetic type uses an iron core similar to III to wrap around the primary coil, and then wraps around the secondary coil outside. The magnetic field line is composed of an iron core to form a closed magnetic circuit. The advantage of the closed magnetic ignition coil is that it has less magnetic leakage, Due to its small energy loss and volume, electronic ignition systems generally use closed field ignition coils)

Audi TT introduce

The Audi TT is a sports car developed by Audi, which was first launched in 1998. As a sports sedan, the TT model has achieved great success in the market with its almost identical beautiful appearance and excellent performance to the concept car version. In the early stages of the first generation, some car owners complained about unstable high-speed turning and accidents. Audi adjusted the suspension system of the TT and added a rear spoiler version to the rear of the car, reducing the lift at the rear of the Audi TT from 148 pounds to 53 pounds at a speed of 125 miles per hour, The 64 pound rear lift of the BMW Z3 Coupe and the 68 pound Porsche Boxster, as well as the 104 pound Mercedes SLK, are lower than those of the same period at the same speed. The Audi TT is a pure sports car. There are three models sold in China, namely the TT Coupe 1.8t, TT 2.0TSI, and TT 3.2quattro convertible (soft top). Audi continues to launch a series of completely new cars, from A4.A6 to the current A8 and TT. [2] Audi TT's competitors include BMW X1, Mercedes SLK, etc