Car lightweight

The lightweight car, is under the premise of ensuring the strength and safety performance of vehicles under the reduced vehicle kerb mass as much as possible, so as to improve the power of the car, reduce fuel consumption and reduce exhaust pollution. Experiments show that the quality of the car is reduced by half and fuel consumption is reduced by nearly half. Due to the needs of environmental protection and energy saving, the lightweight of automobiles has become the trend of the world automotive development.

The main guiding principle: on the basis of ensuring stability and improving performance, energy-saving design of each assembly parts, continue to optimize vehicle type spectrum.

Experiments show that if the vehicle weight is reduced by 10%, fuel efficiency can be increased by 6% - 8%; vehicle curb weight decreased by 100 per kg, 100 km fuel consumption can be reduced from 0.3 to 0.6 liters; vehicle weight decreased 1%, fuel consumption can be reduced by 0.7%. At present, due to the needs of environmental protection and energy saving, the lightweight of automobiles has become the trend of the world automotive development.

Main ways

① The main specifications of the car model continued to optimize, the specifications of the main parameters of the size of the premise, to enhance the structural strength of the whole vehicle, reduce the amount of supplies;

② Light material is adopted. Such as aluminum, magnesium, ceramics, plastics, glass fiber or carbon fiber composite material, etc.;

③ Using computer to design the structure. For example, finite element analysis and local strengthening design are used;

④ Adopt the load bearing body and reduce the thickness of the automobile body sheet.

Among them, the current major automotive lightweight measures are mainly light materials.