Device for adjusting air resistance at tail of automobile

Abstract

The invention discloses a device for adjusting air resistance at the tail of an automobile. The device comprises two tail wing structures, airflow channels and a hydraulic pipeline, wherein the tail wing structures are arranged at the tail ends of the airflow channels respectively. Each tail wing structure comprises a main wing, an auxiliary wing and a driving mechanism, wherein the main wing is arranged under the auxiliary wing; the front end of the auxiliary wing is close to the tail end of the main wing; the middle portion of the upper plate surface of the main wing is provided with a positioning plate which is fixed with respect to the main wing; and the upper end of the positioning plate is rotatably connected with the auxiliary wing. Each driving mechanism comprises a main wing cylinder, an auxiliary wing cylinder, a rotation assisting cylinder and a base, wherein an auxiliary wing cylinder body is rotatably connected with the positioning plate. The hydraulic pipeline comprises a hydraulic pump, a main wing pipeline for connecting and disconnecting the two main wing cylinders simultaneously, an auxiliary wing pipeline for connecting and disconnecting the two auxiliary wing cylinders simultaneously, and a rotation assisting pipeline for independently connecting and disconnecting each rotation assisting cylinder. The invention is to provide the automobile tail air resistance adjusting device capable of adjusting the air resistance and downward pressure at the left and right two sides of the tail portion of the automobile, thereby improving automobile adhesion performance and reducing tyre load.

Description

technical field [0001] The invention belongs to the field of automobiles, in particular to a device for adjusting the air resistance at the rear of a vehicle. Background technique [0002] During the driving process of the car, due to the shape and structure characteristics of the car itself, the car will generate an upward lift when driving, and the adhesion between the car and the ground will decrease. When the car is running at a high speed, this phenomenon is more prominent. In order to alleviate the negative impact of lift on the driving stability of the car as much as possible, designers often start from the shape of the car and optimize the shape of the car to reduce the lift generated. In addition, on high-performance cars, sports cars or racing cars, in order to improve the adhesion of the car to the ground when cornering, a front wing or tail will be installed on the head or tail of the car. The cross-sectional shape of the wing is similar, but its installation me...

AI Technical Summary

Problems solved by technology

[0003] In the actual driving process, especially in the case of high-speed curves, the car will have a tendency to roll to the outside of the curve due to the centrifugal effect, and the positive pressure on the tires located on the inside of the curve is reduced, while the tires on the outside of the curve The positive pressure on the tires increases, and the car has a large roll, which will easily cause the car to break through the adhesion limit of the outer wheel of the curve and slip.

However, since the front and rear wings exert the same downforce on the left and right sides of the car, it is still difficult to alleviate this situation

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