Method and system for performing active resistance reduction control on automobile based on jet actuators

Abstract

The invention provides a method and system for performing active resistance reduction control on an automobile based on jet actuators. The system comprises an actuator A1 arranged on the upper edge of an automobile tail window, actuators A2 respectively arranged on two lateral sides of the automobile tail window, an actuator A3 arranged on the upper edge of a vertical rear back, and an actuator A4 arranged on the lower edge of the vertical rear back. An air source is connected to each actuator cavity through a flow controller; steady jet flow is ejected through a jet orifice along a specific angle; the jet flow generated by each actuator can effectively change a wake structure, and can further significantly lower the aerodynamic resistance of an automobile body. The method for performing active resistance reduction control, disclosed by the invention, comprises the following nine manners: independently using the combination of A1, A2, A3 or A4, independently using the combination of A1 and A2, independently using the combination of A3 and A4, independently using the combination of A1, A2 and A3, independently using the combination of A1, A2 and A4, and independently using the combination of A1, A2, A3 and A4. Through the utilization of the method and system disclosed by the invention, the aerodynamic resistance of the automobile body can be successfully lowered by 29%, and the net saved energy can reach 16%.

Description

technical field [0001] The invention relates to the technical field of automobile drag reduction, in particular to a method and system for actively controlling automobile drag reduction. Background technique [0002] In recent years, due to the rapid increase of fuel prices, the research and development of automotive aerodynamic drag reduction technology has become more important and urgent. The successful application of automobile drag reduction technology will bring huge benefits to the transportation industry. For a car running on a highway, more than 60% of the driving resistance comes from the aerodynamic resistance on the car body. For every 10% reduction in the aerodynamic drag coefficient, the fuel consumption of the car can be reduced by about 7%. According to statistics, the annual fuel consumption of civilian cars in Shenzhen alone has exceeded 18 billion yuan. Clearly, reducing the aerodynamic drag experienced by a vehicle, even by a small amount, would save...

AI Technical Summary

Problems solved by technology

However, the current active drag reduction technology for vehicles with high aerodynamic drag around the flow field, the drag reduction rate is very low (only 14%)

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