The “Made in China 2025†plan clearly requires that by 2020, the application of composite materials such as high-strength steel and aluminum-magnesium alloy in automobiles will achieve an average vehicle weight reduction target of 5% to 20%. Lightweight has become an important direction for the development of the automotive industry, and it is of great significance for saving energy and protecting the environment.
In the eyes of many people, the heavier the car, the higher its safety, and therefore does not recognize the weight of the car. Although the weight of the car is related to safety, but under the increasingly stringent emission regulations of the world, the lightweight of the car is an irreversible trend.
Automotive lightweight trends are irreversible
The lightweight of the car does not blindly reduce the quality or thickness of the door panel, and the concept of "weight loss" cannot be simply equated. Vehicle lightweighting is based on improving or improving the overall performance of the car, reducing the weight of the car as much as possible, achieving the goal of combining quality, structural optimization, safety performance and cost reduction.
According to relevant research, 75% of the fuel consumption of automobiles is related to its quality, such as rolling resistance, acceleration resistance and gradient resistance. For every 10% reduction in vehicle curb weight, fuel consumption can be reduced by 6-8%, and emissions are reduced by 4%. Vehicle quality By reducing 100KG, the fuel consumption per 100 kilometers can be reduced by 0.3-0.6L. Therefore, the most direct benefit for consumers who purchase cars is to reduce the fuel consumption of the car.
For automobile manufacturers, the light weight of automobiles can cope with the policies of energy consumption and emissions in various countries. On the other hand, new materials and new technologies will also have a blessing effect on the luxury of high-end models. A lot of energy has been invested in it.
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