Vehicle body air pressure release valve control system, method and device

Abstract

The embodiment of the invention provides a vehicle body air pressure release valve control system, method and device. The system comprises an air pressure release valve and a control module, wherein the air pressure release valve is provided with a conventional ventilation row plate and a standby ventilation row plate; the opening and closing states of the standby ventilation row plate are controlled through the control module. The control module is used for acquiring a pressure difference value inside and outside the automobile if the automobile is judged to be in a standing automobile door closing working condition; if the pressure difference value between the interior and the exterior of the automobile is larger than a set threshold value, a standby ventilation exhaust plate of the airpressure release valve is controlled to be opened; if it is judged that the automobile is in the driving working condition, a standby ventilation exhaust plate of the air pressure release valve is controlled to be closed. According to the air pressure release valve, the opening area of the air pressure release valve can be adjusted in a self-adaptive mode according to different use working conditions of an automobile, and the problems that when the automobile is closed in a standing mode, the ear pressing feeling occurs, the door closing sound quality becomes poor, the door closing resistancebecomes large, and when the automobile runs at a high speed, noise in the automobile becomes large are solved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of automobiles, in particular to a control system, method and device for a vehicle body air relief valve. Background technique [0002] The air pressure relief valve assembled on the car body is a one-way valve. When the pressure inside the car body is high, the air in the car pushes the valve cover of the air pressure relief valve to discharge the air in the car to ensure the pressure balance inside and outside the car. [0003] However, there are many working conditions in the car during use, such as static door closing (windows, sunroof closed) and high-speed driving conditions (airflow flows through the surface of the car, and a vortex negative pressure zone is formed at the rear of the car). If the opening area of ​​the air pressure relief valve is too small, the air pressure in the car will decay too slowly when the car is left still and the door is closed, which will cause the oc...

AI Technical Summary

Problems solved by technology

If the opening area of ​​the air pressure relief valve is too small, the air pressure in the car will decay too slowly when the car is left still and the door is closed, which will cause the occupants of the car to have an obvious "ear-pressing feeling", the sound quality of closing the door will deteriorate, and even cause If the air pressure inside the car is too high, the resistance to closing the door will increase, which will affect the convenience of closing the door; but if the opening area of ​​the air pressure relief valve is too large, the air pressure relief valve will open when the car is running at high speed, which will increase the leakage of the body. Make the noise in the car bigger, and affect the comfort of the car

Images