Rollover buffer of passenger car and anti-rollover system of passenger car

Abstract

The invention discloses a passenger car rollover buffer and a passenger car anti-rollover system. The passenger car rollover buffer comprises a rollover buffer support and a rollover buffer assembly. The rollover buffer assembly comprises an outer barrel, an inner barrel, a spring, a piston, a piston rod, a collided head and an inflating device. The outer barrel is provided with an accommodating cavity. One end of the accommodating cavity is communicated with the inflating device through an air flue. The inner barrel is a sealed barrel body and is movably arranged in the accommodating cavity of the outer barrel in an accommodated mode. The outer wall of the inner barrel and the inner wall of the outer barrel are tightly attached to each other so as to divide the accommodating cavity into two parts which are not communicated with each other. The spring abuts against a position between the bottom inside the inner barrel and the piston. The piston is connected with the piston rod, wherein the piston rod penetrates through the outer barrel and is connected with the collided head. The passenger car anti-rollover system further comprises an ECU controller. The ECU controller comprises an angle sensor which is used for measuring the rollover angle of a passenger car. The passenger car rollover buffer and the passenger car anti-rollover system keep a body frame structure unchanged, also reduce the striking force and impact energy at the time of rollover, and improve the rollover safety performance.

Description

technical field [0001] The invention relates to the field of passenger car passive safety devices, and more specifically relates to a passenger car rollover buffer and a passenger car rollover anti-rollover system, which can reduce rollover impact energy and improve rollover safety performance. Background technique [0002] As the main means of transportation in our country, the safety of passenger cars has drawn strong attention from all walks of life. Rollover is a main form of passenger car accidents. When a rollover accident occurs, it often causes the tragedy of "group death and group injury" and serious harm to the society. [0003] Therefore, the rollover safety of passenger cars has become a research hotspot for mainstream passenger car companies and scientific research institutions. According to the national mandatory standard GB17578 "Regulations on the Strength of the Upper Structure of Passenger Cars", the upper structure of the vehicle should have sufficient st...

AI Technical Summary

Problems solved by technology

These methods not only increase the weight of the car body, increase the production cost, and reduce the market competitiveness, but also do not conform to the design concept of automobile lightweight, energy saving and emission reduction advocated by the state.

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