Step-adjustable air resistance retarder on the roof

Abstract

The invention discloses a roof step-adjustable air resistance retarder comprising a fixed support, at least one sub-retarder, a transmission mechanism, and a control system. The fixed support is mounted on a car roof. Each sub-retarder comprises a wind resisting blade, a locking mechanism and a rotating shaft, wherein the rotating shaft is rotatably supported on the fixed support, and the wind resisting blade is fixedly connected to the rotating shaft. The locking mechanism disposed between the rotating shafts and the fixed support is used for limiting rotation angles of the rotating shafts which rotate in relation to the fixed support. The transmission mechanism drives the rotating shafts to rotate. The control system controls the locking mechanism and the transmission mechanism to operate. The roof step-adjustable air resistance retarder has the advantages that windward area of a car can be adjusted, vehicular slow braking is achieved through air resistance, thermal load of a frictional brake during vehicle continuous braking and continuous downhill running can be distributed effectively, heat fading is prevented, vehicle driving safety is improved, and wear of the frictional brake is reduced.

Description

technical field [0001] The invention relates to a step-adjustable air resistance slowing device on a vehicle roof, which belongs to the technical field of automobile auxiliary braking. Background technique [0002] The braking system is one of the important components of the vehicle, which is directly related to the safety of life and property, including service brakes, parking brakes and auxiliary brakes. The service brake is the main brake of the vehicle, and generally adopts drum or disc friction braking method, which converts the kinetic energy and potential energy of the vehicle into heat energy through friction, so as to realize the purpose of deceleration or braking of the vehicle. [0003] With the advancement of vehicle technology and the improvement of road conditions, passenger cars, like other commercial vehicles, are developing towards the direction of optimizing the operating efficiency of high speed and heavy load. Since the kinetic energy of a vehicle is prop...

AI Technical Summary

Problems solved by technology

However, this invention patent is mainly aimed at the braking situation of the motor vehicle. The deceleration plate only participates in the work when the brake pedal travels more than half or when the brake pedal is stepped on rapidly, which does not meet the requirements of the auxiliary brake when the passenger car slows down; The body steel plate is used as the deceleration plate, the hydraulic telescopic strut is installed at the inclined beam of the "C-pillar" of the frame, and its transmission system is not suitable for installation and use on passenger cars.

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