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Method for determining a frame connection point of a non-bearing electric automobile, non-bearing type electric automobile frame and electric automobile

A technology of electric vehicle and determination method, which is applied in the connection between the body and the frame, the electric power unit, the power unit, etc., to achieve the effect of realizing strength complementation, realizing the weight reduction of the whole vehicle, and realizing the design of the weight reduction of the whole vehicle

Active Publication Date: 2020-07-10
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, for the high rigidity connection between the frame and the body, how to determine the position of the connection point on the frame and the body has become a difficult problem, and there is no reference to this aspect in the published literature report

Method used

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  • Method for determining a frame connection point of a non-bearing electric automobile, non-bearing type electric automobile frame and electric automobile
  • Method for determining a frame connection point of a non-bearing electric automobile, non-bearing type electric automobile frame and electric automobile
  • Method for determining a frame connection point of a non-bearing electric automobile, non-bearing type electric automobile frame and electric automobile

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Embodiment 1

[0049]This embodiment relates to a method for determining the frame connection point of a non-load-bearing electric vehicle, which is used to determine the position of the connection point on the frame of the non-load-bearing electric vehicle for connecting the frame and the body. Wherein, as a preferred implementation mode, in this embodiment, motors are respectively installed at the front end and the rear end of the vehicle frame, and a battery pack is fixedly arranged in the middle of the vehicle frame, and the vehicle frame and the The connection points of the vehicle body are scattered in different areas of the vehicle frame, so that a stable and reliable connection between the vehicle frame and the vehicle body can be realized through connections at multiple different positions, thereby forming a complete vehicle body structure.

[0050] For the electric vehicle frame structure of this embodiment, an exemplary structure thereof is as follows figure 1 As shown in , it gen...

Embodiment 2

[0084] This embodiment relates to a non-load-bearing automobile frame, on which several connectors are installed to connect with the vehicle body, and each connector is located on the frame determined by the determination method in Embodiment 1. The position of the connection point between the vehicle frame and the vehicle body. At the same time, the above-mentioned connecting member is an elastic connecting member or a rigid connecting member, and when the elastic connecting member is selected, the elastic connecting member can preferably be suspended.

[0085] This embodiment also relates to a non-load-bearing vehicle, on which the above-mentioned non-load-bearing vehicle frame is arranged.

[0086] The non-load-bearing electric vehicle frame and the electric vehicle of this embodiment can realize the high rigidity connection between the vehicle frame and the vehicle body by arranging the connecting parts at the connection point positions determined by the determination metho...

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Abstract

The invention provides a method for determining a frame connection point of a non-bearing electric automobile, which is used for determining the position of a frame body connection point on a frame and comprises the following steps of: establishing a frame structure three-dimensional model; importing the established three-dimensional model into finite element processing software to carry out finite element gridding processing and outputting a grid file; importing the grid file into simulation software, inputting a simulation frequency, and simulating a frame modal diagram under the frequency;and taking the modal node or the lowest modal position in each region as the position of the connection point according to the frame modal value in the frame modal diagram. The invention further provides the non-bearing type automobile frame and the automobile with the connecting points determined through the method. The connecting point position determined by the method can achieve large-rigidityconnection between the frame and the vehicle body, strength complementation of the frame and the automobile body is achieved, the frame and the automobile body can serve as a whole to bear force, andthe weight reduction design of the whole automobile is achieved.

Description

technical field [0001] The invention relates to the technical field of vehicle design and development, in particular to a method for determining connection points of a frame of a non-load-bearing electric vehicle. The present invention also relates to a non-load-bearing vehicle frame with the position of the connection point determined by the determination method, and a non-load-bearing vehicle with the frame. Background technique [0002] In the prior art, automobile body structures are mainly divided into load-bearing body and non-load-bearing body. The load-bearing body does not have a chassis structure that independently bears external forces, but only uses the body to support various components, that is to say, the entire body is integrated, there is no independent girder design, the suspension is installed on the body through the sub-frame, and the load of the body is transmitted through the suspension device. Give the wheels. The load-bearing body structure is light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/23B60K1/04B60K1/00B62D24/02B62D24/00
CPCB60K1/04B60K1/00B62D24/02B62D24/00Y02T10/70
Inventor 穆峰张葆华孙喜冬甄林涛孙志伟许占高李子新陈立冬
Owner GREAT WALL MOTOR CO LTD
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