Roof actively adjustable air resistance retarder

Abstract

The invention discloses an active adjustment type air resistance retarding device on a car roof. The active adjustment type air resistance retarding device comprises a fixed support, a hydraulic oil way, at least one retarding secondary device and a control system. The retarding secondary devices comprise servo motors, hydraulic servo valves, air resistant blades and rotating shafts. The rotating shafts are supported on the fixed support through fixing assemblies in a rotating mode. The air resistant blades are fixedly connected to the rotating shafts. Input shafts of the hydraulic servo valves are connected with the servo motors, and output shafts of the hydraulic servo valves are connected with the rotating shafts. The control system comprises a speed sensor, a switch knob, blade position sensors and a controller used for controlling the servo motors and the hydraulic oil way to work, wherein the blade position sensors are arranged on the rotating shafts. According to the active adjustment type air resistance retarding device, the windward area of a car can be increased through automatic adjusting of angles or direct adjusting of the angles, retardant braking of the car can be achieved by means of air resistance, and the active adjustment type air resistance retarding device can convert weak signals into big hydraulic power to carry out adjustment, and is high in sensitivity and good in speedability.

Description

technical field [0001] The invention relates to an actively adjustable air resistance slowing device on a vehicle roof, which belongs to the field of vehicle 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 proportional...

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.

Images