With the advancement of technology, some new technologies and new materials have gradually been applied to the automotive field and have had a profound impact on the development of the automotive industry. Among them, the application of carbon fiber materials in automobiles is the most typical.

1. Automotive body and chassis applications, due to the strength and rigidity of carbon fiber reinforced polymer matrix composites, is the lightest material for the main structural parts such as automobile body and chassis. It is expected that the application of carbon fiber composite materials can reduce the quality of automobile body and chassis by 40% to 60%, which is equivalent to 1/3 to 1/6 of the quality of steel structure. The common racing car body and some modified car bodies are all for this purpose, and the visual effect is excellent and very cool.

2. The application of brake pads, carbon fiber is also applied to the brake pads because of its environmental protection and wear-resistant characteristics, but the products containing carbon fiber composite materials are expensive, so the brake pads are mainly used in high-end cars. Carbon fiber brake discs are widely used in racing cars, such as F1 racing cars. It can reduce the speed of the car from 300km/h to 50km/h within 50m. At this time, the temperature of the brake disc will rise above 900°C, and the brake disc will turn red due to the absorption of a large amount of heat energy. The carbon fiber brake disc can withstand temperatures up to 2500 ° C and has excellent braking stability.

3. wheel hub application, Germany's wheel hub expert launched the wheel series, adopting a 2-piece design, the outer ring is made of carbon fiber material, the inner hub is a lightweight alloy, with stainless steel screws, the quality of the wheel is lower than the general size of the same size. 40% or so. Taking a 20-inch wheel hub as an example, the hub has a mass of 6 kg, while a typical hub weighs about 18 kg. The British company Kahm uses the CFRP RX-X high-grade car-specific wheels, which are only 6kg in mass and can travel at high speeds and minimize the radial inertia of the wheels. The world's lightest carbon fiber/magnesium wheel developed by DYMAG in the UK consists of a carbon fiber wheel mesh and a magnesium brake disc, which are connected by special titanium-plated hardware.

4. The application of the transmission shaft, the force of the automobile transmission shaft is relatively complicated, especially to withstand a large torque, taking full account of the anisotropy of carbon fiber reinforced composite material, high specific strength and relatively low specific modulus, so as to use Carbon fiber reinforced composite drive shafts can replace metal products to meet the requirements of use. The carbon fiber drive shaft not only reduces weight by 60%, but also has better fatigue resistance and durability.