Battery electric vehicle efficient side turnover preventing system

Abstract

The invention relates to the technical field of battery electric vehicle safety protection, in particular to a battery electric vehicle efficient side turnover preventing system. A tilt angle sensor arranged in the gravity center position of a vehicle body is used for sensing the tilt angle of the vehicle body, in the traveling process of a battery electric vehicle, when the tilt angle of the vehicle body exceeds a preset critical angle, a controller sends a command to a compartment door catapulting mechanism arranged between a luggage compartment door and the vehicle body to open the luggagecompartment door, the luggage compartment door touching the ground before the vehicle body absorbs a part of impact energy in advance through a triangular structure composed of a vehicle body waist rail lower upright, a compartment door upright hinged to the vehicle body waist rail lower upright and a foldable pull rod with the two ends hinged to the vehicle body waist rail lower upright and the compartment door upright, the ground touching deformation of a vehicle body structure is buffered and reduced, and a passenger living space is protected. The existing structure of the vehicle body canbe better used, and the side turnover resisting performance of the battery electric vehicle is improved in an active mode.

Description

technical field [0001] The invention relates to the technical field of pure electric vehicle safety protection, in particular to a high-efficiency anti-rollover system for pure electric vehicles. Background technique [0002] With the development of society, people pay more and more attention to the safety of automobiles, and pure electric vehicles, as the main public transportation means in modern society, are paid more and more attention to their safety. In all traffic accidents, the rollover of pure electric vehicles often leads to heavy casualties, which is a major traffic accident. Therefore, improving the anti-rollover ability of pure electric vehicles and ensuring the safety of passengers in rollover accidents has become a very important topic. At present, the Economic Commission for Europe (ECE) has formulated a pure electric vehicle rollover regulation (ECE R66) and enforced it. With reference to the ECE R66 regulations, my country has formulated the national stand...

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Problems solved by technology

[0003] In order to solve the problem that an effective energy-absorbing structure cannot be designed for the side wall of a pure electric vehicle during the rollover process of a pure electric vehicle, this invention proposes a method to improve the rollover safety of a pure electric vehicle based on the requirements of the existing European ECE R66 regulations. Innovative design scheme, committed to improving the rollover safety of pure electric vehicles by adding movable energy-absorbing mechanisms on the basis of not changing the original body structure, so as to realize the lightweight design of the body

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