A door seal adjustment system and adjustment method for improving automobile NVH performance

Abstract

The invention provides an vehicle door seal adjustment system and an adjustment method for improving the NVH performance of an vehicle. The adjustment system comprises an ECU, a sensor, a seal strip controller and a charging and degassing device. The ECU receives the information collected by the sensor to judge the vehicle state, and transmits an instruction for adjusting the sealing pressure to the charging and discharging equipment through the sealing strip controller, and the charging and discharging equipment performs corresponding action to adjust the sealing pressure. The invention provides different sealing pressure of the sealing strip according to different use conditions of the vehicle, which can improve the NVH performance, improve the door closing comfort, prevent the door frombeing closed violently and improve the vehicle use comfort.

Description

technical field [0001] The invention relates to an intelligent control system for automobile sealing, in particular to a door sealing adjustment system and an adjustment method for improving the NVH performance of the automobile. Background technique [0002] my country has become a "big auto manufacturing country" and is currently undergoing industrial upgrading and technological innovation towards a "powerful auto technology country". Further improvement of manufacturing quality requires more in-depth and detailed research from the source of car design. Sealing performance is an important index to measure the quality of a car, and it is the embodiment of solving passengers' requirements for quiet comfort and smoothness. After years of hard work, researchers and engineers have made important progress in major sources such as engine noise and chassis transmission noise. , in order to meet the higher market demand, the traditional secondary factors affecting comfort are high...

AI Technical Summary

Problems solved by technology

[0005] However, with the development of the expressway network, the driving speed has been greatly increased. Facing high-speed driving conditions, the door and window sealing system must meet more stringent high-speed sound insulation and noise reduction sealing requirements. At the same time, the door sealing system also has a great impact Improved door opening and closing comfort

The existing body sealing system can no longer meet the requirements of passengers for sealing performance, and there are the following problems:

[0006] (1) The cross-section of the existing sealing strip cannot meet the sealing performance of the vehicle under high-speed working conditions. The newly developed sealing strip needs to design a new cross-section and conduct a series of sealing tests. The required development cost is high, and the actual loading There are also unpredictable risks in

[0007] (2) At present, the optimal sealing compression of the sealing strip is fixed, and it is difficult to satisfy the comfortable closing force and the sealing performance after closing the door at the same time

[0008] (3) The sealing strip can provide a certain shock absorption effect under certain working conditions, but it may not be able to play a good shock absorption effect under other working conditions (high speed, turbulence)

[0009] (4) The section of sealing strips in different positions cannot be used universally, and it is necessary to develop sealing strips with different sections for different positions, and the versatility is poor

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